首页 > 最新文献

Resource Geology最新文献

英文 中文
The microbial controls on the deposition of Pb‐Zn minerals in carbonate‐hosted Tunisian ore deposits 微生物对突尼斯碳酸盐岩矿床中铅锌矿物沉积的控制作用
IF 1.4 4区 地球科学 Q3 GEOLOGY Pub Date : 2022-01-01 DOI: 10.1111/rge.12287
R. Abidi, N. Slim-Shimi, Christan Marignac, A. Somarin, C. Renac, E. Deloule, N. Hatira, D. Gasquet
The Ain Allega, Mjar Hannech and Sidi Driss Pb‐Zn‐Ba‐Sr‐As‐(Hg) deposits in northern Tunisia are hosted in a post‐nappe anticline with a core of a Triassic evaporite diapir affected by the NE–SW‐trending Ghardimaou‐Cap Serrat and E‐W lineament. The ore minerals show different styles; particularly, impregnation in dolomite, cement of breccias, replacement ore and open space filling in the dissolution cavities and fractures. Ore minerals include sphalerite, galena, marcasite, pyrite and cinnabar. Principal gangue minerals are composed of barite, celestine, calcite, dolomite and quartz. The orebodies are hosted by Triassic carbonate rocks (Ain Allega ore deposits), Cretaceous carbonate rocks (Mjar Hannech ore deposits) and by the volcanoclastic layers (Sidi Driss ore deposits). These host rocks show hydrothermal alteration, dissolution and brecciation. Sphalerite in the carbonate‐hosted Zn‐Pb deposits in Tunisia occurs as nano‐size microglobular blebs and peloids and forms finely‐laminated bands with wavy and even ripped up features. Peloids are present in collapse breccias of karst cavities. Peloids (5–100 μm) and bacterial filaments (1 μm long) locally form the common micro‐texture of the sulfide mineralization. The core and the shell of peloids are composed of different minerals; there are 1–3 shells and each shell is 1–1.5 μm thick, commonly with coarse crystals. These textures probably represent fossil microbial mats as in‐situ sulfate‐reducing bacteria products and are similar to nano‐textures observed in bacterial biofilms. Electron microscopy, combined with major element changes (Zn, Pb, As, Fe, and Cd) and sulfur isotope values suggest that sphalerite nano‐textures and nano‐spheres are associated with fossilized bacterial‐mat. The δ34S values of sphalerite (−43.9 to +22.38‰) show that the microbial production of H2S controlled sphalerite precipitation. The biogenic nano‐ to macro‐textured sphalerite and sulfur isotope data suggest that microbes had an important role in the genesis of carbonate‐hosted Zn‐Pb deposits in Tunisia during the Miocene.
突尼斯北部的Ain Allega、Mjar Hannech和Sidi Driss Pb - Zn - Ba - Sr - As - (Hg)矿床赋存于后推覆背斜中,其核心为三叠纪蒸发岩底喷岩,受NE-SW -走向的Ghardimaou - Cap Serrat和E - W构造的影响。矿石矿物表现出不同的风格;主要表现为白云岩浸渍、角砾岩胶结、补矿、溶蚀孔洞和溶蚀裂隙的空隙充填。矿石矿物有闪锌矿、方铅矿、黄铁矿、朱砂等。脉石矿物主要有重晶石、天青石、方解石、白云石和石英。矿体赋存于三叠系碳酸盐岩(Ain allea矿床)、白垩系碳酸盐岩(Mjar Hannech矿床)和火山碎屑层(Sidi Driss矿床)。这些寄主岩石表现为热液蚀变、溶蚀和角化作用。在突尼斯的碳酸盐型锌铅矿床中,闪锌矿以纳米级微球状泡和球状体的形式出现,并形成具有波浪状甚至撕裂特征的精细层状带。似球粒存在于溶洞的塌陷角砾岩中。球状体(5-100 μm)和细菌细丝(1 μm长)在局部形成了硫化物矿化的共同微观结构。球状体的核和壳由不同的矿物组成;有1-3个外壳,每个外壳厚1-1.5 μm,通常有粗晶。这些结构可能代表化石微生物垫作为原位硫酸盐还原细菌产物,与细菌生物膜中观察到的纳米结构相似。电子显微镜、主要元素变化(Zn、Pb、As、Fe和Cd)和硫同位素值表明闪锌矿纳米结构和纳米球与细菌垫化石有关。闪锌矿的δ34S值(−43.9 ~ +22.38‰)表明微生物生产H2S控制了闪锌矿的沉淀。生物成因的纳米-宏观结构闪锌矿和硫同位素数据表明,微生物在突尼斯中新世碳酸盐型锌- Pb矿床的成因中发挥了重要作用。
{"title":"The microbial controls on the deposition of Pb‐Zn minerals in carbonate‐hosted Tunisian ore deposits","authors":"R. Abidi, N. Slim-Shimi, Christan Marignac, A. Somarin, C. Renac, E. Deloule, N. Hatira, D. Gasquet","doi":"10.1111/rge.12287","DOIUrl":"https://doi.org/10.1111/rge.12287","url":null,"abstract":"The Ain Allega, Mjar Hannech and Sidi Driss Pb‐Zn‐Ba‐Sr‐As‐(Hg) deposits in northern Tunisia are hosted in a post‐nappe anticline with a core of a Triassic evaporite diapir affected by the NE–SW‐trending Ghardimaou‐Cap Serrat and E‐W lineament. The ore minerals show different styles; particularly, impregnation in dolomite, cement of breccias, replacement ore and open space filling in the dissolution cavities and fractures. Ore minerals include sphalerite, galena, marcasite, pyrite and cinnabar. Principal gangue minerals are composed of barite, celestine, calcite, dolomite and quartz. The orebodies are hosted by Triassic carbonate rocks (Ain Allega ore deposits), Cretaceous carbonate rocks (Mjar Hannech ore deposits) and by the volcanoclastic layers (Sidi Driss ore deposits). These host rocks show hydrothermal alteration, dissolution and brecciation. Sphalerite in the carbonate‐hosted Zn‐Pb deposits in Tunisia occurs as nano‐size microglobular blebs and peloids and forms finely‐laminated bands with wavy and even ripped up features. Peloids are present in collapse breccias of karst cavities. Peloids (5–100 μm) and bacterial filaments (1 μm long) locally form the common micro‐texture of the sulfide mineralization. The core and the shell of peloids are composed of different minerals; there are 1–3 shells and each shell is 1–1.5 μm thick, commonly with coarse crystals. These textures probably represent fossil microbial mats as in‐situ sulfate‐reducing bacteria products and are similar to nano‐textures observed in bacterial biofilms. Electron microscopy, combined with major element changes (Zn, Pb, As, Fe, and Cd) and sulfur isotope values suggest that sphalerite nano‐textures and nano‐spheres are associated with fossilized bacterial‐mat. The δ34S values of sphalerite (−43.9 to +22.38‰) show that the microbial production of H2S controlled sphalerite precipitation. The biogenic nano‐ to macro‐textured sphalerite and sulfur isotope data suggest that microbes had an important role in the genesis of carbonate‐hosted Zn‐Pb deposits in Tunisia during the Miocene.","PeriodicalId":21089,"journal":{"name":"Resource Geology","volume":"15 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79436554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Late Miocene magmatic‐hydrothermal system and related Cu mineralization of the Arakawa area, Akita, Japan 日本秋田荒川地区晚中新世岩浆热液系统及相关的铜成矿作用
IF 1.4 4区 地球科学 Q3 GEOLOGY Pub Date : 2022-01-01 DOI: 10.1111/rge.12284
Shota Satori, Yasushi Watanabe, T. Ogata, Y. Hayasaka
The Northeast Japan arc hosts a number of hydrothermal vein‐type copper deposits associated with Neogene felsic intrusions. The Arakawa area is underlain by Cretaceous granites and Tertiary sedimentary rocks, which were intruded by the Miocene Ushizawamata dacite. Zircon grains from the dacite intrusion yield a 206Pb/238U intercept age (laser ablation inductively coupled plasma mass spectrometry) of 8.10 ± 0.30 Ma, consistent with a previously reported K‐Ar illite age (8.1 ± 0.4 Ma) of the Ushizawamata lead and zinc prospect in the Arakawa area. The dacite intrusion and the surrounding Miocene sedimentary rocks were altered by hydrothermal activity on the surface, classified into four alteration zones: (1) biotite‐chlorite, (2) illite, (3) chlorite and (4) smectite, centered on the intrusion. About 20 major vertical sub‐parallel copper‐bearing quartz veins occur in the chlorite alteration zone on the west side of the dacite. The first vein stage is composed of chalcopyrite and chamosite with a minor amount of quartz in brecciated wall rocks, and the second‐stage is characterized by the presence of hematite in addition to the first‐stage mineral assemblage. The third‐stage consists of comb‐shaped quartz veins with a minor amount of chalcopyrite, sphalerite, galena and pyrite, and the fourth‐stage of barite and apatite present in druse in the third‐stage veins. Primary fluid inclusions in quartz of the first‐ and third‐stages are all liquid‐rich and two‐phase. Homogenization temperature and salinity of first‐stage quartz are 263–277°C and 5.7–7.5 wt% NaCl equivalent (eq.); in quartz of the third‐stage, 251–270°C and 2.7–4.2 wt% in the inner zone and 207–250°C and 2.7–3.7 wt% in comb‐shaped quartz on the vein margin. The fluid inclusions in quartz phenocrysts of the Ushizawamata dacite show two distinct assemblages, halite‐bearing polyphase inclusions that coexist with vapor‐phase inclusions and/or vapor‐rich two‐phase inclusions, and liquid‐rich two‐phase inclusions. Homogenization temperature and salinity of the polyphase inclusions are higher than 401°C and 46.7 wt%, respectively, and those of the vapor‐rich two‐phase inclusions report 393–419°C and 2.6–3.7 wt% NaCl, whereas the liquid‐rich two‐phase inclusions returned 344–403°C and 8.0–9.3 wt%, respectively. These results indicate that the ore forming fluid was slightly cooler and lower in salinity than the late‐stage hydrothermal fluid in the Ushizawamata intrusion. The spatial and temporal proximity between the Ushizawamata dacite and the hydrothermal veins indicates that the dacitic magma was genetically related to the vein copper mineralization in the Arakawa area.
日本东北弧发育大量与新近系长英质侵入体有关的热液脉型铜矿床。荒川地区为白垩纪花岗岩和第三纪沉积岩,被中新世Ushizawamata英安岩侵入。英安岩侵入体的锆石颗粒的206Pb/238U截距年龄(激光烧蚀电感耦合等离子体质谱)为8.10±0.30 Ma,与先前报道的Arakawa地区Ushizawamata铅锌远景区的K - Ar伊立石年龄(8.1±0.4 Ma)一致。英安岩侵入体及其周围中新世沉积岩在地表受到热液作用的蚀变,形成以侵入体为中心的4个蚀变带:(1)黑云母-绿泥石、(2)伊利石、(3)绿泥石和(4)蒙脱石。在英安岩西侧的绿泥石蚀变带中,约有20条主要的垂直亚平行含铜石英脉。第一脉期主要由黄铜矿和辉钼矿组成,角砾岩围岩中含有少量石英;第二脉期除第一脉期矿物组合外,还存在赤铁矿。第三阶段为梳状石英脉,含少量黄铜矿、闪锌矿、方铅矿和黄铁矿;第四阶段为重晶石和磷灰石,在第三阶段脉中呈块状。石英第一和第三阶段的原生流体包裹体都是富液的两相包裹体。第一阶段石英的均一温度和盐度为263-277℃,5.7-7.5 wt% NaCl当量(eq.);在第三阶段的石英中,251-270°C和2.7-4.2 wt%在内部区域,207-250°C和2.7-3.7 wt%在脉缘梳状石英中。Ushizawamata英安岩石英斑晶中的流体包裹体呈现出两种不同的组合:含卤石的多相包裹体与气相包裹体和/或富气两相包裹体共存;富液两相包裹体。多相包裹体的均一温度和盐度分别高于401°C和46.7 wt%,富气两相包裹体的均一温度和盐度分别高于393-419°C和2.6-3.7 wt% NaCl,而富液两相包裹体的均一温度和盐度分别高于344-403°C和8.0-9.3 wt%。这些结果表明,与Ushizawamata侵入体晚期热液相比,成矿流体温度略低,盐度略低。Ushizawamata英安岩与热液脉在空间和时间上的接近表明,英安岩岩浆与荒川地区的脉状铜矿化有成因关系。
{"title":"Late Miocene magmatic‐hydrothermal system and related Cu mineralization of the Arakawa area, Akita, Japan","authors":"Shota Satori, Yasushi Watanabe, T. Ogata, Y. Hayasaka","doi":"10.1111/rge.12284","DOIUrl":"https://doi.org/10.1111/rge.12284","url":null,"abstract":"The Northeast Japan arc hosts a number of hydrothermal vein‐type copper deposits associated with Neogene felsic intrusions. The Arakawa area is underlain by Cretaceous granites and Tertiary sedimentary rocks, which were intruded by the Miocene Ushizawamata dacite. Zircon grains from the dacite intrusion yield a 206Pb/238U intercept age (laser ablation inductively coupled plasma mass spectrometry) of 8.10 ± 0.30 Ma, consistent with a previously reported K‐Ar illite age (8.1 ± 0.4 Ma) of the Ushizawamata lead and zinc prospect in the Arakawa area. The dacite intrusion and the surrounding Miocene sedimentary rocks were altered by hydrothermal activity on the surface, classified into four alteration zones: (1) biotite‐chlorite, (2) illite, (3) chlorite and (4) smectite, centered on the intrusion. About 20 major vertical sub‐parallel copper‐bearing quartz veins occur in the chlorite alteration zone on the west side of the dacite. The first vein stage is composed of chalcopyrite and chamosite with a minor amount of quartz in brecciated wall rocks, and the second‐stage is characterized by the presence of hematite in addition to the first‐stage mineral assemblage. The third‐stage consists of comb‐shaped quartz veins with a minor amount of chalcopyrite, sphalerite, galena and pyrite, and the fourth‐stage of barite and apatite present in druse in the third‐stage veins. Primary fluid inclusions in quartz of the first‐ and third‐stages are all liquid‐rich and two‐phase. Homogenization temperature and salinity of first‐stage quartz are 263–277°C and 5.7–7.5 wt% NaCl equivalent (eq.); in quartz of the third‐stage, 251–270°C and 2.7–4.2 wt% in the inner zone and 207–250°C and 2.7–3.7 wt% in comb‐shaped quartz on the vein margin. The fluid inclusions in quartz phenocrysts of the Ushizawamata dacite show two distinct assemblages, halite‐bearing polyphase inclusions that coexist with vapor‐phase inclusions and/or vapor‐rich two‐phase inclusions, and liquid‐rich two‐phase inclusions. Homogenization temperature and salinity of the polyphase inclusions are higher than 401°C and 46.7 wt%, respectively, and those of the vapor‐rich two‐phase inclusions report 393–419°C and 2.6–3.7 wt% NaCl, whereas the liquid‐rich two‐phase inclusions returned 344–403°C and 8.0–9.3 wt%, respectively. These results indicate that the ore forming fluid was slightly cooler and lower in salinity than the late‐stage hydrothermal fluid in the Ushizawamata intrusion. The spatial and temporal proximity between the Ushizawamata dacite and the hydrothermal veins indicates that the dacitic magma was genetically related to the vein copper mineralization in the Arakawa area.","PeriodicalId":21089,"journal":{"name":"Resource Geology","volume":"5 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74248314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Extremely fractionated magmas linked with W mineralization: Evidence from the Lyangar W‐Mo deposit, South Tianshan Orogenic Belt 与W矿化有关的极分选岩浆:来自南天山造山带Lyangar W - Mo矿床的证据
IF 1.4 4区 地球科学 Q3 GEOLOGY Pub Date : 2022-01-01 DOI: 10.1111/rge.12301
Xia Fei, Zhaochong Zhang, Zhiguo Cheng, Mamta Santosh, Zhenzhen Gao, B. Nurtaev
Tungsten (W) deposits are commonly related to the exsolution of magmatic‐hydrothermal fluids from high‐Si granites (SiO2 > 70%). However, whether the W‐related high‐Si granitic magma is produced via partial melting of metasedimentary source rocks or by high degree of fractional crystallization remains controversial. Here we present new geochronological and geochemical data on the intrusions associated with the Lyangar W‐Mo skarn deposit in the Southern Tianshan Orogenic Belt, Uzbekistan. Our new U–Pb zircon age data show that the major intrusion exposed in the region are ca. 280 Ma biotite gabbroic diorite and biotite granite and about 260 Ma porphyritic granite and muscovite porphyritic granite. The molybdenite grains in the skarn rocks and orebodies show weighted Re‐Os ages of 261.4 ± 7.8 Ma and 261.1 ± 3.8 Ma, respectively. In combination with the field contact, we confirm that the muscovite porphyritic granite is genetically related to the W mineralization. The gradual transition from the porphyritic granite to muscovite porphyritic granite, similar mineral assemblages and geochemical variations indicate that they are co‐magmatic, and that the porphyritic granite represents less evolved member. Rhyolite‐MELTS modeling further reinforces that the muscovite porphyritic granites can be produced by high degree of fractional crystallization (~33%, including ~1.2% biotite, ~27% plagioclase, ~2% alkali‐feldspar, ~0.21% Fe‐Ti oxides, and ~2.7% amphibole) of the porphyritic granite magma. On the basis of the positive ƐHf(t) values (+3.03 to +6.02), high‐SiO2 contents and CIPW characters, the porphyritic granite is considered to have formed from dehydration melting at low pH2O of juvenile basaltic source rocks around 16 kbar and 850–1000°C. Our study demonstrates that extreme fractional crystallization of granitic magma plays a significant role in W enrichment in the granitic melt.
钨(W)矿床通常与岩浆热液流体从高硅花岗岩(SiO2占70%)中析出有关。然而,W相关的高硅花岗质岩浆是由变质沉积岩的部分熔融产生的,还是由高度的分离结晶产生的,仍然存在争议。本文介绍了与乌兹别克斯坦南天山造山带Lyangar W - Mo矽卡岩矿床有关的岩体的年代学和地球化学资料。新的U-Pb锆石年龄数据表明,该地区暴露的主要侵入岩为约280 Ma的黑云母辉长闪长岩和黑云母花岗岩,以及约260 Ma的斑岩花岗岩和白云母斑岩花岗岩。矽卡岩和矿体辉钼矿的Re - Os加权年龄分别为261.4±7.8 Ma和261.1±3.8 Ma。结合野外接触,确认白云母斑岩花岗岩与W矿化有成因关系。从斑岩花岗岩到白云母斑岩花岗岩的逐渐过渡,相似的矿物组合和地球化学变化表明它们是同岩浆作用的,斑岩花岗岩代表演化程度较低的成员。流纹岩- melt模型进一步证实,白云母斑岩花岗岩可由斑岩花岗岩岩浆的高度分馏结晶(~33%,包括~1.2%黑云母、~27%斜长石、~2%碱长石、~0.21%铁钛氧化物和~2.7%角闪洞)形成。根据ƐHf(t)正值(+3.03 ~ +6.02)、高SiO2含量和CIPW特征,认为该斑状花岗岩是由幼玄武质烃源岩在16 kbar、850 ~ 1000℃的低pH2O条件下脱水熔融形成的。研究表明,花岗质岩浆的极端分异结晶对花岗质熔体中W的富集起着重要作用。
{"title":"Extremely fractionated magmas linked with W mineralization: Evidence from the Lyangar W‐Mo deposit, South Tianshan Orogenic Belt","authors":"Xia Fei, Zhaochong Zhang, Zhiguo Cheng, Mamta Santosh, Zhenzhen Gao, B. Nurtaev","doi":"10.1111/rge.12301","DOIUrl":"https://doi.org/10.1111/rge.12301","url":null,"abstract":"Tungsten (W) deposits are commonly related to the exsolution of magmatic‐hydrothermal fluids from high‐Si granites (SiO2 > 70%). However, whether the W‐related high‐Si granitic magma is produced via partial melting of metasedimentary source rocks or by high degree of fractional crystallization remains controversial. Here we present new geochronological and geochemical data on the intrusions associated with the Lyangar W‐Mo skarn deposit in the Southern Tianshan Orogenic Belt, Uzbekistan. Our new U–Pb zircon age data show that the major intrusion exposed in the region are ca. 280 Ma biotite gabbroic diorite and biotite granite and about 260 Ma porphyritic granite and muscovite porphyritic granite. The molybdenite grains in the skarn rocks and orebodies show weighted Re‐Os ages of 261.4 ± 7.8 Ma and 261.1 ± 3.8 Ma, respectively. In combination with the field contact, we confirm that the muscovite porphyritic granite is genetically related to the W mineralization. The gradual transition from the porphyritic granite to muscovite porphyritic granite, similar mineral assemblages and geochemical variations indicate that they are co‐magmatic, and that the porphyritic granite represents less evolved member. Rhyolite‐MELTS modeling further reinforces that the muscovite porphyritic granites can be produced by high degree of fractional crystallization (~33%, including ~1.2% biotite, ~27% plagioclase, ~2% alkali‐feldspar, ~0.21% Fe‐Ti oxides, and ~2.7% amphibole) of the porphyritic granite magma. On the basis of the positive ƐHf(t) values (+3.03 to +6.02), high‐SiO2 contents and CIPW characters, the porphyritic granite is considered to have formed from dehydration melting at low pH2O of juvenile basaltic source rocks around 16 kbar and 850–1000°C. Our study demonstrates that extreme fractional crystallization of granitic magma plays a significant role in W enrichment in the granitic melt.","PeriodicalId":21089,"journal":{"name":"Resource Geology","volume":"13 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88847933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In situ trace element and sulfur isotope of pyrite constraints the mineralization process of haoyaoerhudong gold deposit in Inner Mongolia, China 黄铁矿原地微量元素和硫同位素对内蒙古好窑二虎洞金矿床成矿过程的制约作用
IF 1.4 4区 地球科学 Q3 GEOLOGY Pub Date : 2022-01-01 DOI: 10.1111/rge.12302
Biao Yang, Yi-ke Li, Tao Rong, Xuan Yang, Gao‐zhen Jiang
With more than 11,000 t of gold resources, the Central Asian orogenic belt is the most significant gold deposit belt in the world. The majority of the orogenic belt's gold resources are found in a layer of carbon‐rich black shale. However, there is disagreement regarding the origin and metallogenic process of such a significant quantity of gold. The Haoyaoerhudong gold deposit is located where the northern margin of the North China Craton and the southern margin of the Central Asian orogenic belt converge. It is the most significant black shale gold deposit in the northern margin of North China Craton gold province. The pyrite that typically develops in the Haoyaoerhudong gold deposit has been categorized into five varieties through comprehensive field investigation and mineralogical research, which correspond to five metallogenic stages: Stage 1, sedimentary diagenesis; Stage 2, tectonic deformation; Stage 3, hydrothermal; Stage 4, hydrothermal transformation; Stage 5, late metallogenic. For pyrite in the previous four metallogenic stages, in situ LA‐ICP‐MS trace element analysis and pyrite sulfide isotope analyses were performed. The results suggest that: The average Au contents in the pyrite of sedimentary diagenesis stage is 0.098 ppm; the average Au contents in the pyrite of the tectonic deformation stage and hydrothermal stage, is below the detection limit mostly; the average Au contents in the pyrite of hydrothermal transformation stage is 0.12 ppm. The results indicate that only 22.4% more gold is present in hydrothermal transformation stage than in sedimentary diagenetic stage overall. It may be inferred that the gold enrichment of Haoyaoerhudong gold deposit mostly took place during the sedimentary diagenetic stage; subsequent brittle‐ductile shear and hydrothermal fluid activity did not result in a further enrichment of gold. The sulfur isotope test results of various metallogenic stages in the deposit can be analyzed, and they are generally consistent. The δ34S values range from +10.15% to +16.47%, with an average value of +13.02%. It suggests that there might be a single source of sulfur. According to extensive analysis, the Haoyaoerhudong gold deposit formed a relatively low‐grade ore body during the sedimentary diagenesis stage, and the subsequent tectonic deformation stage and hydrothermal stage provided physical conditions for further activation of gold metal but did not bring corresponding material sources for mineralization.
中亚造山带是世界上最重要的金矿带,黄金资源量超过11000 t。造山带的大部分黄金资源存在于一层富含碳的黑色页岩中。然而,对于如此大量的金的来源和成矿过程却存在分歧。好窑二虎洞金矿床位于华北克拉通北缘与中亚造山带南缘的交汇地带。它是华北克拉通金省北缘最重要的黑色页岩金矿床。通过综合野外考察和矿物学研究,将好窑二虎洞金矿床典型发育的黄铁矿划分为5个品种,分别对应5个成矿阶段:第一阶段沉积成岩作用;第二阶段,构造变形;阶段3,热液;第四阶段,热液转化;第五阶段,成矿晚期。对前4个成矿阶段的黄铁矿进行了原位LA - ICP - MS微量元素分析和硫铁矿同位素分析。结果表明:沉积成岩期黄铁矿中Au的平均含量为0.098 ppm;构造变形期和热液期黄铁矿中平均Au含量大多低于检出限;热液转化阶段黄铁矿中Au的平均含量为0.12 ppm。结果表明,热液转化阶段的金含量总体上仅比沉积成岩阶段高22.4%。可以推断,好窑二虎洞金矿床的金富集主要发生在沉积成岩阶段;随后的脆性-韧性剪切和热液流体活动并没有导致金的进一步富集。对矿床各成矿阶段硫同位素测试结果进行分析,结果基本一致。δ34S值为+10.15% ~ +16.47%,平均值为+13.02%。这表明可能存在单一的硫源。经广泛分析,好窑二虎洞金矿床在沉积成岩阶段形成品位相对较低的矿体,其后的构造变形阶段和热液阶段为金金属的进一步活化提供了物理条件,但没有带来相应的成矿物质来源。
{"title":"In situ trace element and sulfur isotope of pyrite constraints the mineralization process of haoyaoerhudong gold deposit in Inner Mongolia, China","authors":"Biao Yang, Yi-ke Li, Tao Rong, Xuan Yang, Gao‐zhen Jiang","doi":"10.1111/rge.12302","DOIUrl":"https://doi.org/10.1111/rge.12302","url":null,"abstract":"With more than 11,000 t of gold resources, the Central Asian orogenic belt is the most significant gold deposit belt in the world. The majority of the orogenic belt's gold resources are found in a layer of carbon‐rich black shale. However, there is disagreement regarding the origin and metallogenic process of such a significant quantity of gold. The Haoyaoerhudong gold deposit is located where the northern margin of the North China Craton and the southern margin of the Central Asian orogenic belt converge. It is the most significant black shale gold deposit in the northern margin of North China Craton gold province. The pyrite that typically develops in the Haoyaoerhudong gold deposit has been categorized into five varieties through comprehensive field investigation and mineralogical research, which correspond to five metallogenic stages: Stage 1, sedimentary diagenesis; Stage 2, tectonic deformation; Stage 3, hydrothermal; Stage 4, hydrothermal transformation; Stage 5, late metallogenic. For pyrite in the previous four metallogenic stages, in situ LA‐ICP‐MS trace element analysis and pyrite sulfide isotope analyses were performed. The results suggest that: The average Au contents in the pyrite of sedimentary diagenesis stage is 0.098 ppm; the average Au contents in the pyrite of the tectonic deformation stage and hydrothermal stage, is below the detection limit mostly; the average Au contents in the pyrite of hydrothermal transformation stage is 0.12 ppm. The results indicate that only 22.4% more gold is present in hydrothermal transformation stage than in sedimentary diagenetic stage overall. It may be inferred that the gold enrichment of Haoyaoerhudong gold deposit mostly took place during the sedimentary diagenetic stage; subsequent brittle‐ductile shear and hydrothermal fluid activity did not result in a further enrichment of gold. The sulfur isotope test results of various metallogenic stages in the deposit can be analyzed, and they are generally consistent. The δ34S values range from +10.15% to +16.47%, with an average value of +13.02%. It suggests that there might be a single source of sulfur. According to extensive analysis, the Haoyaoerhudong gold deposit formed a relatively low‐grade ore body during the sedimentary diagenesis stage, and the subsequent tectonic deformation stage and hydrothermal stage provided physical conditions for further activation of gold metal but did not bring corresponding material sources for mineralization.","PeriodicalId":21089,"journal":{"name":"Resource Geology","volume":"12 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81796562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sm‐Nd isochron age and Sr‐Nd isotopes of the calcite from the Nibao gold deposit in the Youjiang Basin, SW China 右江盆地泥堡金矿方解石Sm - Nd等时年龄及Sr - Nd同位素
IF 1.4 4区 地球科学 Q3 GEOLOGY Pub Date : 2022-01-01 DOI: 10.1111/rge.12292
Xingzhong Ji, L. Bagas, Zhonghua Han, Wengang Liu
The Youjiang Basin in SW China is the second‐largest Carlin‐like goldfield in the world after Nevada, USA. However, the age and the hydrothermal origin of the gold mineralization are still in controversy, which leads to ambiguities in understanding the geodynamic setting and genetic mechanism of the gold deposition. Nibao is a large, stratabound, and fault‐controlled Carlin‐type gold deposit in the north of the Youjiang Basin. Three ore stages have been recognized in the evolution of the mineralizing hydrothermal fluid, with the stages being characterized by assemblages of the early quartz–porous pyrite, the main quartz–calcite‐apatite–sericite–pyrite–arsenopyrite‐gold, and the late quartz–calcite–fluorite–realgar–orpiment–stibnite. Calcite veins from the main and late ore stage at Nibao are enriched in middle rare earth elements, which is a distinctive characteristic of hydrothermal calcite veins associated with low‐temperature hydrothermal Au‐Sb deposits in the Youjiang Basin, and yield a Sm‐Nd isochron age of 138 ± 1 Ma. The vast majority of the ore stage calcite samples have narrow 87Sr/86Sr ratios and εNd(t) values ranging from 0.708119 to 0.708423 and − 1.1–−3.3, respectively, indicating that the gold‐bearing hydrothermal fluid could be derived from the mixing of mantle and crustal materials. Therefore, we proposed that the gold mineralization during the Early Cretaceous in the Youjiang Basin was triggered by the large‐scale lithosphere extension following the retreat of the subducted Paleo‐Pacific oceanic crust, and the hydrothermal fluid could be originated from the mantle and underwent the contamination of Yangtze upper continental crust.
中国西南部的右江盆地是仅次于美国内华达州的世界第二大类卡林金矿。然而,金矿成矿的年龄和热液成因仍存在争议,导致对金矿成矿的地球动力学背景和成因机制认识不清。泥堡金矿床是右江盆地北部一个层控、断裂控制的大型卡林型金矿床。成矿热液的演化可分为3个矿石阶段,主要表现为早期石英—多孔黄铁矿、主石英—方解石—磷灰石—绢云母—黄铁矿—毒砂—金、晚期石英—方解石—萤石—雄黄—辉锑矿组合。泥堡主矿期和晚矿期方解石脉富含中稀土元素,这是右江盆地低温热液金锑矿伴生热液方解石脉的显著特征,其Sm - Nd等时线年龄为138±1 Ma。绝大多数矿期方解石样品87Sr/86Sr比值较窄,εNd(t)值分别在0.708119 ~ 0.708423和- 1.1 ~ - 3.3之间,表明含金热液可能来源于地幔和地壳物质的混合作用。因此,我们认为右江盆地早白垩世的金成矿作用是由古太平洋地壳俯冲后的大规模岩石圈伸展引发的,热液流体可能来源于地幔,并经历了扬子上陆地壳的污染。
{"title":"Sm‐Nd isochron age and Sr‐Nd isotopes of the calcite from the Nibao gold deposit in the Youjiang Basin, SW China","authors":"Xingzhong Ji, L. Bagas, Zhonghua Han, Wengang Liu","doi":"10.1111/rge.12292","DOIUrl":"https://doi.org/10.1111/rge.12292","url":null,"abstract":"The Youjiang Basin in SW China is the second‐largest Carlin‐like goldfield in the world after Nevada, USA. However, the age and the hydrothermal origin of the gold mineralization are still in controversy, which leads to ambiguities in understanding the geodynamic setting and genetic mechanism of the gold deposition. Nibao is a large, stratabound, and fault‐controlled Carlin‐type gold deposit in the north of the Youjiang Basin. Three ore stages have been recognized in the evolution of the mineralizing hydrothermal fluid, with the stages being characterized by assemblages of the early quartz–porous pyrite, the main quartz–calcite‐apatite–sericite–pyrite–arsenopyrite‐gold, and the late quartz–calcite–fluorite–realgar–orpiment–stibnite. Calcite veins from the main and late ore stage at Nibao are enriched in middle rare earth elements, which is a distinctive characteristic of hydrothermal calcite veins associated with low‐temperature hydrothermal Au‐Sb deposits in the Youjiang Basin, and yield a Sm‐Nd isochron age of 138 ± 1 Ma. The vast majority of the ore stage calcite samples have narrow 87Sr/86Sr ratios and εNd(t) values ranging from 0.708119 to 0.708423 and − 1.1–−3.3, respectively, indicating that the gold‐bearing hydrothermal fluid could be derived from the mixing of mantle and crustal materials. Therefore, we proposed that the gold mineralization during the Early Cretaceous in the Youjiang Basin was triggered by the large‐scale lithosphere extension following the retreat of the subducted Paleo‐Pacific oceanic crust, and the hydrothermal fluid could be originated from the mantle and underwent the contamination of Yangtze upper continental crust.","PeriodicalId":21089,"journal":{"name":"Resource Geology","volume":"4 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82059895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Mineralogy, chronology and formation process of the epithermal gold–silver vein deposits in the historical Togi mine, Noto Peninsula, Japan 日本野户半岛土木古矿浅成热液金银脉矿床的矿物学、年代学及形成过程
IF 1.4 4区 地球科学 Q3 GEOLOGY Pub Date : 2022-01-01 DOI: 10.1111/rge.12294
M. Hamada, W. Kobayashi, Y. Hiramatsu, N. Hasebe
To determine local deposit features in the vein‐type gold–silver ore deposit of the historical Togi mine, Noto Peninsula, central Japan, we investigated the occurrence and chemical compositions of ore minerals, especially silver‐ and/or gold‐bearing minerals, and wall‐rock alteration in the Togo No. 3 tunnel, a major tunnel of the Urukami mining area of the Togi mine. In the tunnel, the stockwork veins which are generally 0.1–1.5 m wide runs in Neogene pyroxene andesite. In the ore‐bearing quartz vein, in addition to the sulfides such as sphalerite, pyrite and chalcopyrite, the following Au and/or Ag ore minerals were identified: electrum with <49.3 mol% Ag, uytenbogaardtite, fischesserite, silver‐rich minerals of the Ag2S–Ag2Se solid solution series, and Se‐rich pearceite. Gangue minerals in the quartz veins are quartz and adularia. The wall rock is silicified, chloritized, and sericitized pyroxene andesite. Multiple generations of adularia grown on quartz suggest that adularia has grown by repeatedly passing the hydrothermal solution through the vein. Based on the characteristic occurrence of the Ag and/or silver‐rich ore minerals such as electrum, fischesserite, and Se‐rich pearceite and a gangue mineral, adularia, and on the wall‐rock alteration characterized by chlorite, sericite, and calcite, the Togi deposit is classified as a Se‐type and low‐sulfidation epithermal gold vein deposit. The K‐Ar ages of illite/smectite mixed‐layer minerals from the altered outcrop and plagioclase from a fresh andesite sample are 17.68 ± 0.41 and 17.52 ± 0.43 Ma, respectively, in agreement with published data of the Besshodake andesite. These results indicate that the hydrothermal fluids generated by the Miocene andesitic magma activity infiltrated the fissures relating to the formation of the Togi‐gawa Nangan Fault at the northern boundary of the Togi mining area, and Au and/or Ag‐rich ore minerals were formed from the hydrothermal fluid with decreasing temperature at the shallow level.
为了确定日本中部野户半岛历史悠久的东木矿脉型金银矿床的局部矿床特征,我们研究了东木矿Urukami矿区主要隧道东木3号隧道的矿石矿物(特别是含银和/或含金矿物)的赋存状态和化学成分,以及围岩蚀变。巷道内发育宽约0.1 ~ 1.5 m的网状脉体,为新近系辉石安山岩。在含矿石英脉中,除发现闪锌矿、黄铁矿、黄铜矿等硫化物外,还发现了以下金矿石和/或银矿石矿物:银<49.3 mol%的银银、黄铁矿、银辉石、Ag2S-Ag2Se固溶体系列富银矿物和富硒珠光矿。石英脉中的脉石矿物为石英和阿胶。围岩为硅化、绿岩化、绢云母化辉石安山岩。在石英上生长的多代阿胶表明阿胶是通过热液反复穿过矿脉而生长的。根据富银和(或)银矿物如银、绢云母、富硒珠云母和脉石矿物adularia的赋存特征,以及以绿泥石、绢云母和方解石为特征的围岩蚀变特征,将Togi矿床划分为低硫化低低温热液型金矿床。新安山岩蚀变露头和斜长石中伊利石/蒙脱石混合层矿物的K - Ar年龄分别为17.68±0.41和17.52±0.43 Ma,与已发表的贝什达克安山岩数据一致。这些结果表明,中新世安山岩岩浆活动产生的热液渗透到托吉矿区北部边界托吉加瓦南干断裂形成的裂缝中,热液形成的Au和/或富银矿物在浅层温度逐渐降低。
{"title":"Mineralogy, chronology and formation process of the epithermal gold–silver vein deposits in the historical Togi mine, Noto Peninsula, Japan","authors":"M. Hamada, W. Kobayashi, Y. Hiramatsu, N. Hasebe","doi":"10.1111/rge.12294","DOIUrl":"https://doi.org/10.1111/rge.12294","url":null,"abstract":"To determine local deposit features in the vein‐type gold–silver ore deposit of the historical Togi mine, Noto Peninsula, central Japan, we investigated the occurrence and chemical compositions of ore minerals, especially silver‐ and/or gold‐bearing minerals, and wall‐rock alteration in the Togo No. 3 tunnel, a major tunnel of the Urukami mining area of the Togi mine. In the tunnel, the stockwork veins which are generally 0.1–1.5 m wide runs in Neogene pyroxene andesite. In the ore‐bearing quartz vein, in addition to the sulfides such as sphalerite, pyrite and chalcopyrite, the following Au and/or Ag ore minerals were identified: electrum with <49.3 mol% Ag, uytenbogaardtite, fischesserite, silver‐rich minerals of the Ag2S–Ag2Se solid solution series, and Se‐rich pearceite. Gangue minerals in the quartz veins are quartz and adularia. The wall rock is silicified, chloritized, and sericitized pyroxene andesite. Multiple generations of adularia grown on quartz suggest that adularia has grown by repeatedly passing the hydrothermal solution through the vein. Based on the characteristic occurrence of the Ag and/or silver‐rich ore minerals such as electrum, fischesserite, and Se‐rich pearceite and a gangue mineral, adularia, and on the wall‐rock alteration characterized by chlorite, sericite, and calcite, the Togi deposit is classified as a Se‐type and low‐sulfidation epithermal gold vein deposit. The K‐Ar ages of illite/smectite mixed‐layer minerals from the altered outcrop and plagioclase from a fresh andesite sample are 17.68 ± 0.41 and 17.52 ± 0.43 Ma, respectively, in agreement with published data of the Besshodake andesite. These results indicate that the hydrothermal fluids generated by the Miocene andesitic magma activity infiltrated the fissures relating to the formation of the Togi‐gawa Nangan Fault at the northern boundary of the Togi mining area, and Au and/or Ag‐rich ore minerals were formed from the hydrothermal fluid with decreasing temperature at the shallow level.","PeriodicalId":21089,"journal":{"name":"Resource Geology","volume":"11 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85961916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Petrology and geochemistry of adakitic intrusions and dykes at Sarcheshmeh porphyry Cu‐Mo ± Au deposit, Iran: Insights into their source 伊朗Sarcheshmeh斑岩型Cu - Mo±Au矿床中绿质侵入岩和脉岩的岩石学和地球化学特征及其来源
IF 1.4 4区 地球科学 Q3 GEOLOGY Pub Date : 2022-01-01 DOI: 10.1111/rge.12297
M. Maanijou, Mohammad Mostaghimi, Mehdi Abdollahy Riseh, D. Lentz, Ali A. Sepahi Gerow
The Sarcheshmeh porphyry copper deposit (PCD) is located in the southeast part of the arc‐related Urumieh‐Dokhtar volcano‐plutonic belt. This PCD was formed by intrusion of a Middle Miocene granodiorite to tonalite stock into the volcano‐sedimentary rocks that are mainly andesite exhibiting Early Tertiary thrusting and faulting. On the basis of geochemistry of intrusive rocks, they are calc‐alkalic and alkali‐calcic suites that are consistent with oxidized I‐type magmas. The Fe2O3/FeO ratio in the Sarcheshmeh PCD is 1 to 3, consistent with a high oxygen fugacity. The igneous rocks of Sarcheshmeh PCD belong to a mature arc, but related to a post‐collision arc setting. Considerable evidence supports adakitic affinities of the Sarcheshmeh rocks, including geochemical values of Sr > 300 ppm (ave., 594 ppm), high ratios of Sr/Y > 20 (ave., 75), La/Yb > 20 (ave., 30), and enrichment of LREE and LILE relative to HREE and HFSE. The adakites of Sarcheshmeh belong to high‐silica adakites (HSA) that can be formed by melting of subducting seawater‐altered oceanic plate, which interact with the mantle wedge then followed by slab break‐off with local transtension in the middle part of the Dehaj‐Sarduieh belt. In rocks of the region, the ratios of Th/Ce > 0.12 and Nb/Zr > 0.05 suggest that the subducting crust has a role in forming different groups of these rocks. Geotectonic discrimination diagrams are used to distinguish between normal arc and slab failure magmatic systems, including Nb versus Y, La/Sm versus Sm/Yb, La/Yb versus Gd/Yb, and Rb versus Nb + Y diagrams. The plutonic rocks of the Sarcheshmeh PCD have characteristics consistent with adakites derived via slab failure, which are obviously metallogenically favorable magmatic systems. Adakitic melts generated rapidly during sinking of a broken slab (into higher temperature mantle), buoyantly migrate through the subcontinental lithospheric mantle (SCLM), which is related to structural evolution of that SCLM with local extension or transpression.
Sarcheshmeh斑岩铜矿床(PCD)位于与弧相关的乌鲁木齐- Dokhtar火山-成矿带的东南部。该PCD是由中中新世花岗闪长岩和闪长岩侵入以安山岩为主的火山沉积岩形成的,这些火山沉积岩具有早第三纪的逆冲和断裂作用。侵入岩的地球化学特征表明,它们是与ⅰ型氧化岩浆相一致的钙碱性套和碱钙套。Sarcheshmeh PCD中Fe2O3/FeO的比值为1 ~ 3,具有较高的氧逸度。Sarcheshmeh PCD的火成岩属于成熟弧,但与碰撞后弧环境有关。相当多的证据表明,Sarcheshmeh岩石的地球化学值Sr > 300 ppm (ave., 594 ppm), Sr/Y > 20 (ave., 75), La/Yb > 20 (ave., 30), LREE和LILE相对于HREE和HFSE富集。Sarcheshmeh的埃达克岩属于高硅埃达克岩(HSA),可由俯冲海水蚀变的大洋板块熔融形成,与地幔楔相互作用,然后在Dehaj - Sarduieh带中部发生板块断裂和局部张拉。区内岩石中Th/Ce比值> 0.12,Nb/Zr比值> 0.05,表明俯冲地壳对不同类型岩石的形成起了作用。大地构造辨别图用于区分正弧和板破坏岩浆系统,包括Nb与Y、La/Sm与Sm/Yb、La/Yb与Gd/Yb、Rb与Nb + Y图。萨切什梅PCD的深成岩具有与板裂成因埃达克岩相一致的特征,是明显的成矿有利岩浆系统。破碎板块下沉(向高温地幔)过程中迅速产生的阿达克质熔体在次大陆岩石圈地幔(SCLM)中浮力迁移,这与该次大陆岩石圈地幔的局部伸展或转张的结构演化有关。
{"title":"Petrology and geochemistry of adakitic intrusions and dykes at Sarcheshmeh porphyry Cu‐Mo ± Au deposit, Iran: Insights into their source","authors":"M. Maanijou, Mohammad Mostaghimi, Mehdi Abdollahy Riseh, D. Lentz, Ali A. Sepahi Gerow","doi":"10.1111/rge.12297","DOIUrl":"https://doi.org/10.1111/rge.12297","url":null,"abstract":"The Sarcheshmeh porphyry copper deposit (PCD) is located in the southeast part of the arc‐related Urumieh‐Dokhtar volcano‐plutonic belt. This PCD was formed by intrusion of a Middle Miocene granodiorite to tonalite stock into the volcano‐sedimentary rocks that are mainly andesite exhibiting Early Tertiary thrusting and faulting. On the basis of geochemistry of intrusive rocks, they are calc‐alkalic and alkali‐calcic suites that are consistent with oxidized I‐type magmas. The Fe2O3/FeO ratio in the Sarcheshmeh PCD is 1 to 3, consistent with a high oxygen fugacity. The igneous rocks of Sarcheshmeh PCD belong to a mature arc, but related to a post‐collision arc setting. Considerable evidence supports adakitic affinities of the Sarcheshmeh rocks, including geochemical values of Sr > 300 ppm (ave., 594 ppm), high ratios of Sr/Y > 20 (ave., 75), La/Yb > 20 (ave., 30), and enrichment of LREE and LILE relative to HREE and HFSE. The adakites of Sarcheshmeh belong to high‐silica adakites (HSA) that can be formed by melting of subducting seawater‐altered oceanic plate, which interact with the mantle wedge then followed by slab break‐off with local transtension in the middle part of the Dehaj‐Sarduieh belt. In rocks of the region, the ratios of Th/Ce > 0.12 and Nb/Zr > 0.05 suggest that the subducting crust has a role in forming different groups of these rocks. Geotectonic discrimination diagrams are used to distinguish between normal arc and slab failure magmatic systems, including Nb versus Y, La/Sm versus Sm/Yb, La/Yb versus Gd/Yb, and Rb versus Nb + Y diagrams. The plutonic rocks of the Sarcheshmeh PCD have characteristics consistent with adakites derived via slab failure, which are obviously metallogenically favorable magmatic systems. Adakitic melts generated rapidly during sinking of a broken slab (into higher temperature mantle), buoyantly migrate through the subcontinental lithospheric mantle (SCLM), which is related to structural evolution of that SCLM with local extension or transpression.","PeriodicalId":21089,"journal":{"name":"Resource Geology","volume":"19 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88642660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Texture and morphology of veins and their relationship to gold mineralization in the Penjom deposit, Malaysia 马来西亚Penjom金矿矿脉结构、形态及其与金矿化的关系
IF 1.4 4区 地球科学 Q3 GEOLOGY Pub Date : 2022-01-01 DOI: 10.1111/rge.12288
Zakaria Endut, T. Ng, Jasmi Hafiz Abdul Aziz, C. Makoundi, Haslikhalijah Dauad, K. Ariffin
Penjom deposit is an orogenic gold deposit located in the Central Belt of Peninsular Malaysia. Gold mineralization is associated with various styles and textures of quartz‐carbonate veins hosted within the metasedimentary as the main host rock and felsic igneous rock including minor volcanic rock. Vein textural features and morphologies have been investigated based on macroscopic and microscopic characteristics to understand the process of veins formation, and the relationship with gold mineralization. At the hand specimen scale, veins show a variety of textures that are either primary or superimposed. Primary textures are comb, massive anhedral buck quartz veins, and laminae veins or vein septa representing early vein introduction without vein modification. Extension veins that are normally concordant to maximum compressive stress direction show either a common comb texture within these veins or buck texture inside thick veins. Secondary textures are ribbon, stylolites, breccias, and late spider veinlets that overprint early veins formed during repeated structural episodes. Later stage deformation events superimposed on the existing veins texture results in intensely deformed veins. The interrelationship of structure, vein‐type and texture, gold and sulfide mineralogy have been correlated to constrain the episodes of gold mineralization in the Penjom deposit. Characteristics of vein textures indicate physio‐environment under confining lithostatic pressure where fluids filled the space through crack and sealing mechanism. Vein systems and gold mineralization events that have been correlated with the D2D3 (fold‐fault) deformation events and inferred to be temporally related to the late‐stage regional orogenic event dated Late Triassic‐Early Jurassic that affected Peninsular Malaysia.
Penjom金矿床是位于马来西亚半岛中部地带的造山带金矿床。金矿化与变质沉积岩中以石英-碳酸盐脉体为主要寄主岩和长英质火成岩(包括少量火山岩)的各种样式和结构有关。从宏观和微观特征出发,研究了矿脉的结构特征和形态特征,以了解矿脉的形成过程及其与金矿化的关系。在手部标本尺度上,静脉显示出多种纹理,有的是原始的,有的是叠加的。主要结构为梳状、块状菱形buck石英脉和纹状脉或脉间隔,代表早期脉的引入,没有脉的修饰。通常与最大压应力方向一致的延伸脉在这些脉内显示出常见的梳状结构或在粗脉内显示出buck结构。次级织构为带状、柱头岩、角砾岩和覆盖在重复构造时期形成的早期脉上的晚期蜘蛛脉。后期变形事件叠加在现有脉体纹理上,导致脉体剧烈变形。构造、脉型和结构、金与硫化物矿物学的相互关系制约了奔奔金矿的成矿期次。脉状结构特征反映了围压静岩条件下流体通过裂缝和密封机制充填空间的物理环境。脉系和金矿化事件与D2D3(褶皱-断层)变形事件相关,并推断与影响马来西亚半岛的晚三叠世-早侏罗世晚期区域性造山事件在时间上相关。
{"title":"Texture and morphology of veins and their relationship to gold mineralization in the Penjom deposit, Malaysia","authors":"Zakaria Endut, T. Ng, Jasmi Hafiz Abdul Aziz, C. Makoundi, Haslikhalijah Dauad, K. Ariffin","doi":"10.1111/rge.12288","DOIUrl":"https://doi.org/10.1111/rge.12288","url":null,"abstract":"Penjom deposit is an orogenic gold deposit located in the Central Belt of Peninsular Malaysia. Gold mineralization is associated with various styles and textures of quartz‐carbonate veins hosted within the metasedimentary as the main host rock and felsic igneous rock including minor volcanic rock. Vein textural features and morphologies have been investigated based on macroscopic and microscopic characteristics to understand the process of veins formation, and the relationship with gold mineralization. At the hand specimen scale, veins show a variety of textures that are either primary or superimposed. Primary textures are comb, massive anhedral buck quartz veins, and laminae veins or vein septa representing early vein introduction without vein modification. Extension veins that are normally concordant to maximum compressive stress direction show either a common comb texture within these veins or buck texture inside thick veins. Secondary textures are ribbon, stylolites, breccias, and late spider veinlets that overprint early veins formed during repeated structural episodes. Later stage deformation events superimposed on the existing veins texture results in intensely deformed veins. The interrelationship of structure, vein‐type and texture, gold and sulfide mineralogy have been correlated to constrain the episodes of gold mineralization in the Penjom deposit. Characteristics of vein textures indicate physio‐environment under confining lithostatic pressure where fluids filled the space through crack and sealing mechanism. Vein systems and gold mineralization events that have been correlated with the D2D3 (fold‐fault) deformation events and inferred to be temporally related to the late‐stage regional orogenic event dated Late Triassic‐Early Jurassic that affected Peninsular Malaysia.","PeriodicalId":21089,"journal":{"name":"Resource Geology","volume":"323 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76352847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Primary source of placer gold in the Luk Ulo Metamorphic Complex, Central Java, Indonesia 印度尼西亚中爪哇陆乌洛变质杂岩中砂金的主要来源
IF 1.4 4区 地球科学 Q3 GEOLOGY Pub Date : 2022-01-01 DOI: 10.1111/rge.12300
Renaldi Suhendra, R. Takahashi, A. Imai, Hinako Sato, N. Setiawan, A. Agangi
The Luk Ulo Metamorphic Complex, Central Java is a product of the Cretaceous subduction and accretion, and includes diverse types of protoliths. Two‐types of primary mineralization have been recognized in this area, namely, (1) seafloor basalt‐hosted massive sulfide mineralization and (2) low‐grade metamorphic rocks‐hosted vein type mineralization. Later erosion of these types of primary mineralization formed placer gold deposits along rivers. However, the source has never been identified. Thus, this study aims at understanding the source of placer gold, the characteristics of the primary mineralization, and the tectonic evolution of the study area on the basis of mineralogy, mineral chemistry, whole‐rock geochemistry, and sulfur isotope analyses. Volcanogenic massive sulfide (VMS)‐type mineralization was identified in the seafloor basalt and few deep‐sea sedimentary rocks, and both the ores and host rocks preserved pre‐metamorphic textures and minerals. The characteristics of this VMS‐type mineralization include (1) crustiform quartz veins with pyrite cutting the host rocks, (2) zonation of local silicification to interlayered chlorite/smectite‐chlorite‐laumontite‐calcite‐epidote alteration from central to outer zone, (3) pyrite‐dominated ores with minor amounts of arsenian pyrite, chalcopyrite, and marcasite, (4) unmetamorphosed host rocks and ores, and (5) sulfur isotope signature with a median δ34S of +3.1‰ suggesting sulfur derived from magmatic source and/or sulfur extracted from basaltic rocks with a small contribution of biogenic sulfur. On the other hand, low‐grade metamorphic rocks‐hosted vein type mineralization was identified as orogenic‐type gold mineralization, and the mineralized veins formed after the peak of metamorphism. It is characterized by (1) pyrite‐arsenian pyrite ores with minor amounts of arsenopyrite, galena, tetrahedrite, chalcopyrite, and sphalerite, (2) quartz‐illite‐graphite alteration assemblage, (3) mineralized veins cross‐cutting the foliation of metamorphic host rocks, (4) high antimony contents of pyrite (up to 1.7 wt%) and rutile (up to 160 ppm), (5) relatively high ore‐forming temperature (423 ± 9°C, calculated from arsenopyrite and graphite geothermometers), and (6) remobilized‐sedimentary sulfur signature of the ores with a median δ34S of −9.8‰. Several lines of evidence suggest that placer gold was likely derived from the erosion of orogenic‐type gold ores in the surrounding areas. This evidence includes the presence of gold‐bearing ores hosted by low‐grade metapelites and metagranitoid with characteristics of orogenic‐type gold mineralization, whereas the VMS‐type ores are barren in gold. The occurrence of the mid‐oceanic ridge‐ and accretion zone‐related mineralization in this area reflects the subduction and amalgamation of oceanic and continental crustal blocks during the Cretaceous period. Discovery of gold mineralization hosted in the Cretaceous basement rocks of the Sunda arc indicates the importanc
中爪哇Luk Ulo变质杂岩是白垩纪俯冲和增生的产物,包含多种类型的原岩。该区原生矿化主要有两种类型,即(1)海底玄武岩-块状硫化物矿化和(2)低品位变质岩-脉状矿化。这些原生矿化的后期侵蚀形成了沿河流的砂金矿床。然而,来源从未被确定。在矿物学、矿物化学、全岩地球化学和硫同位素分析的基础上,对研究区砂金的来源、原生成矿特征和构造演化进行了研究。在海底玄武岩和少量深海沉积岩中发现了火山成因块状硫化物(VMS)型成矿作用,矿石和寄主岩均保留了前变质结构和矿物。该VMS型矿化特征包括:(1)黄铁矿切割寄主岩的壳状石英脉;(2)局部硅化分带为层间绿泥石/蒙脱石-绿泥石-湖沸石-方解石-绿帘石蚀变;(3)黄铁矿为主,含少量砷黄铁矿、黄铜矿和黄铁矿;(5)硫同位素特征,δ34S中值为+3.1‰,表明硫来自岩浆源或玄武岩,生物源硫贡献较小。另一方面,低品位变质岩-矿脉型成矿被确定为造山型金矿化,成矿矿脉形成于变质高峰后。其特征为:(1)黄铁矿-砷黄铁矿矿石中含有少量的毒砂、方铅矿、四面体、黄铜矿和闪锌矿,(2)石英-伊立石-石墨蚀变组合,(3)矿化矿脉与变质主岩的叶理交叉切割,(4)黄铁矿锑含量高(高达1.7 wt%),金红石锑含量高(高达160 ppm),(5)相对较高的成矿温度(423±9℃,根据毒砂和石墨地温计计算)。(6)矿石中位δ34S为−9.8‰的再活化-沉积硫特征。若干证据表明,砂金很可能来源于周围地区造山带型金矿的侵蚀作用。这一证据包括含金矿石存在低品位变长岩和类变长岩,具有造山带型金矿化特征,而VMS型矿石含金贫乏。该地区洋中脊和增生带相关矿化的出现反映了白垩纪洋陆地壳块体的俯冲和融合。巽他弧白垩系基底岩中金矿化的发现,表明拓宽金矿找矿对象的重要性,不仅要包括年轻的火山岩,而且要包括相对古老的变质基底岩。
{"title":"Primary source of placer gold in the Luk Ulo Metamorphic Complex, Central Java, Indonesia","authors":"Renaldi Suhendra, R. Takahashi, A. Imai, Hinako Sato, N. Setiawan, A. Agangi","doi":"10.1111/rge.12300","DOIUrl":"https://doi.org/10.1111/rge.12300","url":null,"abstract":"The Luk Ulo Metamorphic Complex, Central Java is a product of the Cretaceous subduction and accretion, and includes diverse types of protoliths. Two‐types of primary mineralization have been recognized in this area, namely, (1) seafloor basalt‐hosted massive sulfide mineralization and (2) low‐grade metamorphic rocks‐hosted vein type mineralization. Later erosion of these types of primary mineralization formed placer gold deposits along rivers. However, the source has never been identified. Thus, this study aims at understanding the source of placer gold, the characteristics of the primary mineralization, and the tectonic evolution of the study area on the basis of mineralogy, mineral chemistry, whole‐rock geochemistry, and sulfur isotope analyses. Volcanogenic massive sulfide (VMS)‐type mineralization was identified in the seafloor basalt and few deep‐sea sedimentary rocks, and both the ores and host rocks preserved pre‐metamorphic textures and minerals. The characteristics of this VMS‐type mineralization include (1) crustiform quartz veins with pyrite cutting the host rocks, (2) zonation of local silicification to interlayered chlorite/smectite‐chlorite‐laumontite‐calcite‐epidote alteration from central to outer zone, (3) pyrite‐dominated ores with minor amounts of arsenian pyrite, chalcopyrite, and marcasite, (4) unmetamorphosed host rocks and ores, and (5) sulfur isotope signature with a median δ34S of +3.1‰ suggesting sulfur derived from magmatic source and/or sulfur extracted from basaltic rocks with a small contribution of biogenic sulfur. On the other hand, low‐grade metamorphic rocks‐hosted vein type mineralization was identified as orogenic‐type gold mineralization, and the mineralized veins formed after the peak of metamorphism. It is characterized by (1) pyrite‐arsenian pyrite ores with minor amounts of arsenopyrite, galena, tetrahedrite, chalcopyrite, and sphalerite, (2) quartz‐illite‐graphite alteration assemblage, (3) mineralized veins cross‐cutting the foliation of metamorphic host rocks, (4) high antimony contents of pyrite (up to 1.7 wt%) and rutile (up to 160 ppm), (5) relatively high ore‐forming temperature (423 ± 9°C, calculated from arsenopyrite and graphite geothermometers), and (6) remobilized‐sedimentary sulfur signature of the ores with a median δ34S of −9.8‰. Several lines of evidence suggest that placer gold was likely derived from the erosion of orogenic‐type gold ores in the surrounding areas. This evidence includes the presence of gold‐bearing ores hosted by low‐grade metapelites and metagranitoid with characteristics of orogenic‐type gold mineralization, whereas the VMS‐type ores are barren in gold. The occurrence of the mid‐oceanic ridge‐ and accretion zone‐related mineralization in this area reflects the subduction and amalgamation of oceanic and continental crustal blocks during the Cretaceous period. Discovery of gold mineralization hosted in the Cretaceous basement rocks of the Sunda arc indicates the importanc","PeriodicalId":21089,"journal":{"name":"Resource Geology","volume":"296 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77032988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new orogenic gold belt in Southeast Asia: Geology, mineralogy and genesis of the Vangtat gold deposit, Southeastern Laos 东南亚新造山带:老挝东南部万塔特金矿床地质、矿物学及成因
IF 1.4 4区 地球科学 Q3 GEOLOGY Pub Date : 2021-12-16 DOI: 10.1111/rge.12283
Patthana Bounliyong, A. Arribas, Yasushi Watanabe, T. Echigo, Henry Wong
The Vangtat deposit is the major gold deposit in a new orogenic gold belt discovered and developed in southeastern Laos in the past two decades. Our study of the Vangtat orogenic gold deposit shows that it formed within a convergent margin along the western segment of the Poko suture zone, which marks the collision between the Indochina Terrane and the Kontum Massif. Shear structure and greenschist facies metamorphic rocks are the main hosts for gold mineralization in the Vangtat deposit. High‐grade gold‐bearing quartz‐sulfide veins and wall rock hydrothermal alteration are genetically related, and alteration minerals consist of quartz, carbonate, graphite, white mica, chlorite, and pyrite. The study of fluid inclusions and wall rock alteration assemblages indicate that the Vangtat gold deposit was formed by an aqueous‐carbonic, low salinity, reduced, weakly alkaline to near‐neutral pH fluid, mainly composed of H2O, NaCl, CO2, CH4, N2, H2S, H2, O2, Si, and K. Gold was predominantly carried as a sulfide complex. The precipitation of gold is related to wall rock sulfidation and the further reduction with the carbon‐bearing host rock. The correlation between trapping temperature obtained from arsenopyrite geothermometry (360–395°C) and homogenization temperature obtained from primary fluid inclusion microthermometry (240–250°C), indicates a pressure and depth range for the Vangtat deposit of 380–420 MPa and 11–13 km, respectively. Gold appears as inclusions mainly in pyrite, and auriferous pyrite is homogeneous in textural, chemical, and sulfur isotopic composition. Auriferous pyrite δ34S values range from +4 to +6‰, which is compatible with the δ34S composition of igneous rocks. Together with cobalt/nickel ratios from the Vangtat auriferous pyrite, which are significantly greater than one (avg. 6.3), we suggest that mafic‐ultramafic rocks in the geologic basement of the Vangtat deposit are the plausible source of hydrothermal gold and sulfur. The formation of this orogenic gold deposit is associated with metamorphic dehydration and devolatilization that transported gold to the site of deposition.
在过去的二十年里,在老挝东南部发现并开发了一个新的造山带,Vangtat金矿是其中的主要金矿。剪切构造和绿片岩相变质岩是万塔特金矿成矿的主要寄主。高品位含金石英硫化物矿脉与围岩热液蚀变具有遗传关系,蚀变矿物包括石英、碳酸盐、石墨、白云母、绿泥石和黄铁矿。流体包裹体和围岩蚀变组合研究表明,万塔金矿床是由水碳、低盐度、还原、弱碱性至近中性pH流体形成的,流体主要由H2O、NaCl、CO2、CH4、N2、H2S、H2、O2、Si和k组成。金的析出与围岩硫化作用及与含碳主岩的进一步还原有关。毒砂圈闭温度(360 ~ 395℃)与原生流体包裹体显微测温均质温度(240 ~ 250℃)的对比表明,Vangtat矿床的压力范围为380 ~ 420 MPa,深度范围为11 ~ 13 km。金主要以包裹体形式出现在黄铁矿中,含金黄铁矿在结构、化学成分和硫同位素组成上都是均匀的。含金黄铁矿δ34S值在+4 ~ +6‰之间,与火成岩的δ34S组成相适应。结合Vangtat含金黄铁矿的钴/镍比值显著大于1(平均值6.3),我们认为Vangtat矿床地质基底的基性-超基性岩石可能是热液金和硫的来源。该造山带金矿床的形成与变质脱水和脱挥发作用有关,变质脱水和脱挥发作用将黄金输送到沉积部位。
{"title":"A new orogenic gold belt in Southeast Asia: Geology, mineralogy and genesis of the Vangtat gold deposit, Southeastern Laos","authors":"Patthana Bounliyong, A. Arribas, Yasushi Watanabe, T. Echigo, Henry Wong","doi":"10.1111/rge.12283","DOIUrl":"https://doi.org/10.1111/rge.12283","url":null,"abstract":"The Vangtat deposit is the major gold deposit in a new orogenic gold belt discovered and developed in southeastern Laos in the past two decades. Our study of the Vangtat orogenic gold deposit shows that it formed within a convergent margin along the western segment of the Poko suture zone, which marks the collision between the Indochina Terrane and the Kontum Massif. Shear structure and greenschist facies metamorphic rocks are the main hosts for gold mineralization in the Vangtat deposit. High‐grade gold‐bearing quartz‐sulfide veins and wall rock hydrothermal alteration are genetically related, and alteration minerals consist of quartz, carbonate, graphite, white mica, chlorite, and pyrite. The study of fluid inclusions and wall rock alteration assemblages indicate that the Vangtat gold deposit was formed by an aqueous‐carbonic, low salinity, reduced, weakly alkaline to near‐neutral pH fluid, mainly composed of H2O, NaCl, CO2, CH4, N2, H2S, H2, O2, Si, and K. Gold was predominantly carried as a sulfide complex. The precipitation of gold is related to wall rock sulfidation and the further reduction with the carbon‐bearing host rock. The correlation between trapping temperature obtained from arsenopyrite geothermometry (360–395°C) and homogenization temperature obtained from primary fluid inclusion microthermometry (240–250°C), indicates a pressure and depth range for the Vangtat deposit of 380–420 MPa and 11–13 km, respectively. Gold appears as inclusions mainly in pyrite, and auriferous pyrite is homogeneous in textural, chemical, and sulfur isotopic composition. Auriferous pyrite δ34S values range from +4 to +6‰, which is compatible with the δ34S composition of igneous rocks. Together with cobalt/nickel ratios from the Vangtat auriferous pyrite, which are significantly greater than one (avg. 6.3), we suggest that mafic‐ultramafic rocks in the geologic basement of the Vangtat deposit are the plausible source of hydrothermal gold and sulfur. The formation of this orogenic gold deposit is associated with metamorphic dehydration and devolatilization that transported gold to the site of deposition.","PeriodicalId":21089,"journal":{"name":"Resource Geology","volume":"28 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74822433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Resource Geology
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1