首页 > 最新文献

Journal of Geosciences最新文献

英文 中文
Petrogenesis of fractionated nested granite intrusions: the Sedmihoří Composite Stock (Bohemian Massif) 分级嵌套花岗岩侵入体的岩石成因:Sedmihoří复合岩群(波西米亚地块)
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2020-02-12 DOI: 10.3190/jgeosci.294
J. Trubač, V. Janoušek, A. Gerdes
1 Institute of Geochemistry, Mineralogy and Mineral Resources, Charles University, Albertov 6, 128 43 Prague 2, Czech Republic; jakub.trubac@gmail.com 2 Czech Geological Survey, Klárov 3, 118 21 Prague 1, Czech Republic 3 Institute of Petrology and Structural Geology, Charles University, Albertov 6, 128 43 Prague 2, Czech Republic 4 Institut für Geowissenschaften, Goethe University Frankfurt, Altenhöferallee 1, D-60438, Frankfurt am Main, Germany * Corresponding author
1查尔斯大学地球化学、矿物学和矿产资源研究所,阿尔贝托夫6,128 43布拉格2;jakub.trubac@gmail.com 2捷克地质调查局,Klárov 3, 118 21布拉格1,捷克共和国3查尔斯大学岩石与构造地质研究所,阿尔伯托夫6,128 43布拉格2,捷克共和国4法兰克福歌德大学地质科学研究所,Altenhöferallee 1, D-60438,德国法兰克福*通讯作者
{"title":"Petrogenesis of fractionated nested granite intrusions: the Sedmihoří Composite Stock (Bohemian Massif)","authors":"J. Trubač, V. Janoušek, A. Gerdes","doi":"10.3190/jgeosci.294","DOIUrl":"https://doi.org/10.3190/jgeosci.294","url":null,"abstract":"1 Institute of Geochemistry, Mineralogy and Mineral Resources, Charles University, Albertov 6, 128 43 Prague 2, Czech Republic; jakub.trubac@gmail.com 2 Czech Geological Survey, Klárov 3, 118 21 Prague 1, Czech Republic 3 Institute of Petrology and Structural Geology, Charles University, Albertov 6, 128 43 Prague 2, Czech Republic 4 Institut für Geowissenschaften, Goethe University Frankfurt, Altenhöferallee 1, D-60438, Frankfurt am Main, Germany * Corresponding author","PeriodicalId":15957,"journal":{"name":"Journal of Geosciences","volume":"64 1","pages":"271-294"},"PeriodicalIF":1.4,"publicationDate":"2020-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41634465","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: 2
Stratigraphy, structure and geology of Late Miocene Verkhneavachinskaya caldera with basaltic-andesitic ignimbrites at Eastern Kamchatka 堪察加半岛东部晚中新世Verkhneavachinskaya破火山口的地层、结构和地质特征
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2020-02-12 DOI: 10.3190/jgeosci.295
O. Bergal-Kuvikas, V. Leonov, A. Rogozin, I. Bindeman, Evgeniy Kliapitskiy, T. Churikova
1 Institute of Volcanology and Seismology, Far East Branch, Russian Academy of Science, Piip Boulevard 9, Petropavlovsk-Kamchatsky, 683006, Russia; olgakuvikas@gmail.com 2 Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry, Staromonetnyi per. 35, Moscow, 119017, Russia 3 Fersman Mineralogical Museum, Leninskii avenue 18 build. 2, Moscow, 115162, Russia 4 Department of Earth Sciences, 1272 University of Oregon, Eugene, OR 97403, USA 5 Geowissenschaftliches Zentrum Göttingen, Abteilung Geochemie, Universität Göttingen, Goldschmidtstraße 1 build. 2408, Göttingen, 37077, Germany * Corresponding author † Deceased
1俄罗斯科学院远东分院火山和地震研究所,俄罗斯堪察加彼得罗巴甫洛夫斯克Piip Boulevard 9,683006;olgakuvikas@gmail.com2 Staromonetnyi矿床地质、岩石学、矿物学和地球化学研究所。35,莫斯科,119017,俄罗斯3 Fersman矿物学博物馆,列宁斯基大街18号楼。2,莫斯科,115162,俄罗斯4地球科学系,1272俄勒冈大学,尤金,OR 97403,美国5 Geowissenschaftliches Zentrum Göttingen,Abteilung Geochemie,哥廷根大学,Goldschmidtstraße 1号楼。2408,哥廷根,37077,德国*通讯作者†已去世
{"title":"Stratigraphy, structure and geology of Late Miocene Verkhneavachinskaya caldera with basaltic-andesitic ignimbrites at Eastern Kamchatka","authors":"O. Bergal-Kuvikas, V. Leonov, A. Rogozin, I. Bindeman, Evgeniy Kliapitskiy, T. Churikova","doi":"10.3190/jgeosci.295","DOIUrl":"https://doi.org/10.3190/jgeosci.295","url":null,"abstract":"1 Institute of Volcanology and Seismology, Far East Branch, Russian Academy of Science, Piip Boulevard 9, Petropavlovsk-Kamchatsky, 683006, Russia; olgakuvikas@gmail.com 2 Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry, Staromonetnyi per. 35, Moscow, 119017, Russia 3 Fersman Mineralogical Museum, Leninskii avenue 18 build. 2, Moscow, 115162, Russia 4 Department of Earth Sciences, 1272 University of Oregon, Eugene, OR 97403, USA 5 Geowissenschaftliches Zentrum Göttingen, Abteilung Geochemie, Universität Göttingen, Goldschmidtstraße 1 build. 2408, Göttingen, 37077, Germany * Corresponding author † Deceased","PeriodicalId":15957,"journal":{"name":"Journal of Geosciences","volume":"64 1","pages":"229-250"},"PeriodicalIF":1.4,"publicationDate":"2020-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44455992","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: 4
Radiogenic heat production of Variscan granites from the Western Bohemian Massif, Germany 来自德国西波西米亚地块的瓦里斯坎花岗岩的放射成因热生产
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2020-02-12 DOI: 10.3190/jgeosci.293
L. Scharfenberg, Anette Regelous, H. Wall
Much of the Mid-European basement has been consolidated during the Variscan Orogeny and includes large volumes of granitic intrusions. Gamma radiation spectroscopic measurements in three study areas along the western margin of the Bohemian Massif give a record of radiogenic element concentrations in the Variscan granites. Most intrusions of the Fichtelgebirge (except for the Tin Granite) and intrusive complexes in the Bavarian Forest show Th/U ratios exceeding unity, most likely related to abundance of monazite. In contrast, some of the Oberpfalz granites located near the Saxothuringian–Moldanubian boundary (Flossenbürg, Steinwald and Friedenfels types) are characterized by higher uranium concentrations and thus Th/U < 1. The low Th/U ratios here are in agreement with a possible U mobilisation along the Saxothuringian–Moldanubian contact zone observed in previous studies. Heat production rates of granites in the three study areas vary between 3.9 and 8.9 µW/m 3 , with a mean of 4.9 µW/m 3 . This classifies the intrusions as moderate- to high-heat-producing granites. Considering the huge volume of granitic bodies in the Variscan crust of the Bohemian Massif, the contribution of in situ radiogenic heat production had to have a major impact and should be considered in further thermal modeling. contains on the surface heat flow. Hasterok and Chapman (2011) estimated that 26 % of the surface heat flow is generated by the upper continental crust. The new database GRAN-ITE2017 has been set up to compile available data on worldwide granitic terrains of all ages (Artemieva al. Based on statistical analysis, first conclusions have been made on variation of bulk heat production of granites through geological time. These results show a peak in the Middle Proterozoic times and a gradual decrease towards younger (Cenozoic) intrusions.
大部分中欧基底在瓦里斯坎造山运动期间被巩固,包括大量的花岗岩侵入。在波希米亚地块西缘的三个研究区进行的伽马辐射光谱测量给出了瓦里斯坎花岗岩中放射性成因元素浓度的记录。除锡花岗岩外,巴伐利亚森林的大部分侵入岩和侵入杂岩的Th/U比值均超过统一,很可能与独居石的丰度有关。而位于Saxothuringian-Moldanubian边界附近的Oberpfalz花岗岩(flossenb rg、Steinwald和Friedenfels类型)则具有较高的铀浓度,因此Th/U < 1。这里的低Th/U比率与先前研究中观察到的沿萨克森图林根-摩尔达努瓦接触带可能的U动员一致。三个研究区域的花岗岩产热率在3.9至8.9 μ W/m 3之间,平均为4.9 μ W/m 3。这将侵入岩划分为中高产热花岗岩。考虑到波西米亚地块Variscan地壳中花岗岩体的巨大体积,原位放射成因热的贡献必须产生重大影响,并应在进一步的热模拟中予以考虑。表面包含热流。Hasterok和Chapman(2011)估计26%的地表热流是由上大陆地壳产生的。建立了新的数据库grani - ite2017,对世界范围内各时代花岗岩地形的现有数据进行了整理,通过统计分析,首次得出了花岗岩体产热随地质年代变化的结论。这些结果表明,中元古代的侵入量达到顶峰,并逐渐减少到更年轻(新生代)。
{"title":"Radiogenic heat production of Variscan granites from the Western Bohemian Massif, Germany","authors":"L. Scharfenberg, Anette Regelous, H. Wall","doi":"10.3190/jgeosci.293","DOIUrl":"https://doi.org/10.3190/jgeosci.293","url":null,"abstract":"Much of the Mid-European basement has been consolidated during the Variscan Orogeny and includes large volumes of granitic intrusions. Gamma radiation spectroscopic measurements in three study areas along the western margin of the Bohemian Massif give a record of radiogenic element concentrations in the Variscan granites. Most intrusions of the Fichtelgebirge (except for the Tin Granite) and intrusive complexes in the Bavarian Forest show Th/U ratios exceeding unity, most likely related to abundance of monazite. In contrast, some of the Oberpfalz granites located near the Saxothuringian–Moldanubian boundary (Flossenbürg, Steinwald and Friedenfels types) are characterized by higher uranium concentrations and thus Th/U < 1. The low Th/U ratios here are in agreement with a possible U mobilisation along the Saxothuringian–Moldanubian contact zone observed in previous studies. Heat production rates of granites in the three study areas vary between 3.9 and 8.9 µW/m 3 , with a mean of 4.9 µW/m 3 . This classifies the intrusions as moderate- to high-heat-producing granites. Considering the huge volume of granitic bodies in the Variscan crust of the Bohemian Massif, the contribution of in situ radiogenic heat production had to have a major impact and should be considered in further thermal modeling. contains on the surface heat flow. Hasterok and Chapman (2011) estimated that 26 % of the surface heat flow is generated by the upper continental crust. The new database GRAN-ITE2017 has been set up to compile available data on worldwide granitic terrains of all ages (Artemieva al. Based on statistical analysis, first conclusions have been made on variation of bulk heat production of granites through geological time. These results show a peak in the Middle Proterozoic times and a gradual decrease towards younger (Cenozoic) intrusions.","PeriodicalId":15957,"journal":{"name":"Journal of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2020-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43173284","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: 8
Anorogenic Early Permian dykes in the western Mongolian Altai - petrography, geochemistry and K-Ar geochronology 蒙古阿尔泰西部早二叠世造山岩脉——岩石学、地球化学和钾氩年代学
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2019-12-05 DOI: 10.3190/JGEOSCI.280
V. Žáček, D. Buriánek, Z. Pécskay, R. Škoda
A variety of felsic and mafic dykes grouped into swarms intruded the Lower Palaeozoic volcano-sedimentary sequences (flysch) and Late Devonian to Early Carboniferous plutonic rocks in the Hovd and Altai zones of the Central Asian Orogenic Belt (CAOB), western Mongolian Altai. The dykes reach a thickness of 0.5–20 m, length of approximately 50–2,500 m and strike mostly SW–NE or E–W. The felsic rocks chemically correspond to high-K calc-alkaline to alkaline rhyolites. Compositional trends of mafic rocks pass from alkalineand calc-alkaline basalts to trachyandesite. The bimodal nature of the association and the transitional calc-alkaline to alkaline character of the dykes indicate magma production through partial melting of the mantle and continental crust in an intra-plate (rift) geodynamic setting. The new conventional whole-rock K–Ar dating of mafic and felsic dykes yielded ages ranging from 300 ± 9 to 281 ± 9 Ma (1σ). This indicates anorogenic volcanic activity associated with Late Carboniferous to Early Permian extension coeval with magmatism in the Gobi–Altai Rift and in the adjacent parts of the Chinese Altai. The calculated crystallization pressures of 1–2 kbar and 0.3–0.4 kbar for felsic and mafic rocks, respectively, indicate emplacement at shallow levels.
蒙古阿尔泰西部中亚造山带(CAOB) Hovd和Altai带中,多种长英质和基性岩脉成群侵入下古生代火山-沉积层(复理石岩)和晚泥盆世至早石炭世深成岩。堤厚0.5 ~ 20 m,长约50 ~ 2500 m,走向以西南偏东或东西向为主。长英质岩在化学上对应于高钾钙碱性-碱性流纹岩。基性岩的组成趋势由碱性和钙碱性玄武岩向粗面玄武岩过渡。结合的双峰性质和岩脉的钙碱性向碱性过渡特征表明岩浆是在板块内(裂谷)地球动力学背景下通过地幔和大陆地壳的部分熔融产生的。新的常规镁质和长英质岩脉全岩K-Ar定年得到的年龄范围为300±9 ~ 281±9 Ma (1σ)。这表明晚石炭世至早二叠世的造山火山活动与戈壁-阿尔泰裂谷及中国阿尔泰邻近地区的岩浆活动同时发生。长英质和基性岩石的结晶压力分别为1 ~ 2 kbar和0.3 ~ 0.4 kbar,表明侵位在浅层。
{"title":"Anorogenic Early Permian dykes in the western Mongolian Altai - petrography, geochemistry and K-Ar geochronology","authors":"V. Žáček, D. Buriánek, Z. Pécskay, R. Škoda","doi":"10.3190/JGEOSCI.280","DOIUrl":"https://doi.org/10.3190/JGEOSCI.280","url":null,"abstract":"A variety of felsic and mafic dykes grouped into swarms intruded the Lower Palaeozoic volcano-sedimentary sequences (flysch) and Late Devonian to Early Carboniferous plutonic rocks in the Hovd and Altai zones of the Central Asian Orogenic Belt (CAOB), western Mongolian Altai. The dykes reach a thickness of 0.5–20 m, length of approximately 50–2,500 m and strike mostly SW–NE or E–W. The felsic rocks chemically correspond to high-K calc-alkaline to alkaline rhyolites. Compositional trends of mafic rocks pass from alkalineand calc-alkaline basalts to trachyandesite. The bimodal nature of the association and the transitional calc-alkaline to alkaline character of the dykes indicate magma production through partial melting of the mantle and continental crust in an intra-plate (rift) geodynamic setting. The new conventional whole-rock K–Ar dating of mafic and felsic dykes yielded ages ranging from 300 ± 9 to 281 ± 9 Ma (1σ). This indicates anorogenic volcanic activity associated with Late Carboniferous to Early Permian extension coeval with magmatism in the Gobi–Altai Rift and in the adjacent parts of the Chinese Altai. The calculated crystallization pressures of 1–2 kbar and 0.3–0.4 kbar for felsic and mafic rocks, respectively, indicate emplacement at shallow levels.","PeriodicalId":15957,"journal":{"name":"Journal of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2019-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42062131","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
Giftgrubeite, CaMn2Ca2(AsO4)2(AsO3OH)2·4H2O, a new member of the hureaulite group from Sainte-Marie-aux-Mines, Haut-Rhin Department, Vosges, France Giftgrubeite,CaMn2Ca2(AsO4)2(AsO3OH)2·4H2O,来自法国Vosges上莱茵省Sainte-Marie aux矿山的hureaulite集团的新成员
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2019-12-05 DOI: 10.3190/JGEOSCI.276
N. Meisser, J. Plášil, Thierry Brunsperger, C. Lheur, R. Škoda
1 Musée cantonal de géologie, Université de Lausanne, Anthropole, Dorigny, CH-1015 Lausanne, Switzerland; nicolas.meisser@unil.ch 2 Institute of Physics, Academy of Sciences of the Czech Republic v.v.i, Na Slovance 2, 182 21 Prague 8, Czech Republic 3 22 route de Wintzenheim, 68000 Colmar, France 4 1 rue du St Laurent, 54280 Seichamps, France 5 Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic * Corresponding author
1瑞士洛桑大学,多里格尼Anthropole, CH-1015洛桑;nicolas.meisser@unil.ch 2捷克共和国科学院物理研究所,捷克共和国布拉格182 21 8,捷克共和国3 22 route de Wintzenheim, 68000 Colmar,法国4 1 rue du St Laurent, 54280 Seichamps,法国5马萨里克大学理学院地质科学系,Kotlářská 2, 611 37 Brno,捷克共和国*通讯作者
{"title":"Giftgrubeite, CaMn2Ca2(AsO4)2(AsO3OH)2·4H2O, a new member of the hureaulite group from Sainte-Marie-aux-Mines, Haut-Rhin Department, Vosges, France","authors":"N. Meisser, J. Plášil, Thierry Brunsperger, C. Lheur, R. Škoda","doi":"10.3190/JGEOSCI.276","DOIUrl":"https://doi.org/10.3190/JGEOSCI.276","url":null,"abstract":"1 Musée cantonal de géologie, Université de Lausanne, Anthropole, Dorigny, CH-1015 Lausanne, Switzerland; nicolas.meisser@unil.ch 2 Institute of Physics, Academy of Sciences of the Czech Republic v.v.i, Na Slovance 2, 182 21 Prague 8, Czech Republic 3 22 route de Wintzenheim, 68000 Colmar, France 4 1 rue du St Laurent, 54280 Seichamps, France 5 Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic * Corresponding author","PeriodicalId":15957,"journal":{"name":"Journal of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2019-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42980455","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: 2
Zalužany - a circular structure in the Czech Republic accompanied by glass of granodiorite composition Zalužany -捷克共和国的一个圆形结构,伴随着花岗闪长岩组成的玻璃
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2019-12-05 DOI: 10.3190/JGEOSCI.281
S. Vrána, J. Mrlina, R. Škoda, P. Halodová
The Hejný Pond, 500 × 400 m, southeast of the Zalužany village in central Bohemia, attracted attention as a possible impact structure. The pond has a notable bilateral symmetry with an axis oriented NW–SE, indicating a significant subhorizontal vector in the overall deformation pattern. A negative gravity anomaly elongated in the same direction (600 × 300 m) with the amplitude of –0.35 mGal was disclosed by detailed gravity survey. The incomplete ring of elevations suggests slightly uplifted basement segments with a diameter of 1 km. Search for glass and other possible indicators of shock metamorphism resulted in a find of glass fragments 22 to 37 mm across. The glass has composition comparable to the local Kozárovice hornblende–biotite granodiorite of the Central Bohemian Plutonic Complex. Unusual features include locally high contamination by iron (up to 10–13 wt. % FeOt) and abundant cristobalite. The absence of planar deformation features in quartz and feldspars together with the absence of platinum-group elements and Ni enrichment in local glass may be considered as obstacles in defining Zalužany as an impact structure. Although glass fragments are rare at the locality, and the considerable Quaternary erosion, the occurrence of rock inclusions in two of the fragments makes the Zalužany structure a promising object for future study.
位于波希米亚中部Zalužany村东南500×400米的Hejný池塘作为一个可能的撞击结构引起了人们的注意。该池塘具有显著的双边对称性,轴方向为NW–SE,表明整体变形模式中存在显著的亚水平矢量。详细的重力测量揭示了一个沿同一方向(600×300m)延伸的负重力异常,振幅为-0.35 mGal。不完整的隆起环表明基底段轻微隆起,直径为1公里。寻找玻璃和其他可能的冲击变质迹象,发现了直径为22至37毫米的玻璃碎片。该玻璃的成分与中央波希米亚Plutonic杂岩的当地Kozárovice角闪石-黑云母花岗闪长岩相当。异常特征包括局部高铁污染(FeOt高达10-13 wt.%)和丰富的方石英。石英和长石中缺乏平面变形特征,加上铂族元素的缺乏和局部玻璃中镍的富集,可能被认为是将Zalužany定义为冲击结构的障碍。尽管玻璃碎片在当地很少见,而且第四纪受到了相当大的侵蚀,但其中两个碎片中岩石包裹体的出现使Zalužany结构成为未来研究的一个有希望的对象。
{"title":"Zalužany - a circular structure in the Czech Republic accompanied by glass of granodiorite composition","authors":"S. Vrána, J. Mrlina, R. Škoda, P. Halodová","doi":"10.3190/JGEOSCI.281","DOIUrl":"https://doi.org/10.3190/JGEOSCI.281","url":null,"abstract":"The Hejný Pond, 500 × 400 m, southeast of the Zalužany village in central Bohemia, attracted attention as a possible impact structure. The pond has a notable bilateral symmetry with an axis oriented NW–SE, indicating a significant subhorizontal vector in the overall deformation pattern. A negative gravity anomaly elongated in the same direction (600 × 300 m) with the amplitude of –0.35 mGal was disclosed by detailed gravity survey. The incomplete ring of elevations suggests slightly uplifted basement segments with a diameter of 1 km. Search for glass and other possible indicators of shock metamorphism resulted in a find of glass fragments 22 to 37 mm across. The glass has composition comparable to the local Kozárovice hornblende–biotite granodiorite of the Central Bohemian Plutonic Complex. Unusual features include locally high contamination by iron (up to 10–13 wt. % FeOt) and abundant cristobalite. The absence of planar deformation features in quartz and feldspars together with the absence of platinum-group elements and Ni enrichment in local glass may be considered as obstacles in defining Zalužany as an impact structure. Although glass fragments are rare at the locality, and the considerable Quaternary erosion, the occurrence of rock inclusions in two of the fragments makes the Zalužany structure a promising object for future study.","PeriodicalId":15957,"journal":{"name":"Journal of Geosciences","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2019-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41937284","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
Octahedral substitution in beryl from weakly fractionated intragranitic pegmatite Predné Solisko, Tatry Mountains (Slovakia): the indicator of genetic conditions Tatry Mountains(斯洛伐克)PrednéSolisko弱分级花岗伟晶岩绿柱石的八面体取代:遗传条件的指标
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2019-12-05 DOI: 10.3190/JGEOSCI.272
P. Bačík, Jana Fridrichová, P. Uher, S. Rybár, V. Bizovská, J. Luptáková, Dana Vrablíková, L. Pukančík, T. Vaculovič
{"title":"Octahedral substitution in beryl from weakly fractionated intragranitic pegmatite Predné Solisko, Tatry Mountains (Slovakia): the indicator of genetic conditions","authors":"P. Bačík, Jana Fridrichová, P. Uher, S. Rybár, V. Bizovská, J. Luptáková, Dana Vrablíková, L. Pukančík, T. Vaculovič","doi":"10.3190/JGEOSCI.272","DOIUrl":"https://doi.org/10.3190/JGEOSCI.272","url":null,"abstract":"","PeriodicalId":15957,"journal":{"name":"Journal of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2019-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43846538","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: 5
Trace-element chemistry of barren and ore-bearing quartz of selected Au, Au-Ag and Sb-Au deposits from the Bohemian Massif 波西米亚地块部分Au、Au- ag和Sb-Au矿床贫矿石英微量元素化学特征
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2019-12-05 DOI: 10.3190/JGEOSCI.279
K. Pacak, J. Zachariáš, L. Strnad
The trace-element contents in gold-bearing and barren quartz veins from eight Au, Au–Ag and Sb–Au Variscan deposits in the Bohemian Massif have been determined in situ in order to evaluate the differences between the various types of gold deposits and discuss trace-element variations in the successive generations of quartz veins. The variability of Ti, Al, Ge, Li and Sb abundances obtained by Laser-Ablation Inductively-Coupled Plasma Mass Spectrometry (LA-ICP-MS) roughly correlates with the origin and the temperature of the mineralizing fluids. The Al content ranges up to 4020 ppm (median value 230 ppm), while the Li content is generally low (< 4 ppm). The elevated Sb content (30–360 ppm Sb) is only related to quartz that immediately preceded deposition of Sb-rich phases. The titanium content of the ore-bearing vein quartz follows bimodal distribution: gold deposits with assumed higher temperature (> 450 °C) formation exhibit higher median values (~10 ppm Ti) than medium-to-low (< 300 °C) temperature deposits (~2 ppm Ti). A statistically significant threshold value (8 ppm Ti) has been recognized as an empirical tool for discriminating between them. In terms of the Ti and Al contents, the studied Bohemian gold deposits fall within and in between fields of orogenic gold and porphyry deposit types.
本文对波希米亚地块8个金、金、银、锑金Variscan矿床的含金和贫瘠石英脉中的微量元素含量进行了原位测定,以评价各类型金矿床之间的差异,并讨论了历代石英脉中微量元素的变化。激光烧蚀电感耦合等离子体质谱法(LA-ICP-MS)测得的Ti、Al、Ge、Li和Sb丰度的变化与矿化流体的来源和温度大致相关。Al含量最高可达4020 ppm(中值230 ppm),而Li含量普遍较低(< 4 ppm)。Sb含量升高(30-360 ppm Sb)仅与富Sb相沉积前的石英有关。含矿脉石英的钛含量呈双峰分布:假设温度较高(bb0 ~ 450℃)的金矿床的Ti中值(~10 ppm)高于中低温(< 300℃)的金矿床(~2 ppm)。统计上显著的阈值(8 ppm Ti)已被认为是区分它们的经验工具。从钛和铝的含量上看,波西米亚金矿属于造山带型金矿和斑岩型金矿的范畴或介于两者之间。
{"title":"Trace-element chemistry of barren and ore-bearing quartz of selected Au, Au-Ag and Sb-Au deposits from the Bohemian Massif","authors":"K. Pacak, J. Zachariáš, L. Strnad","doi":"10.3190/JGEOSCI.279","DOIUrl":"https://doi.org/10.3190/JGEOSCI.279","url":null,"abstract":"The trace-element contents in gold-bearing and barren quartz veins from eight Au, Au–Ag and Sb–Au Variscan deposits in the Bohemian Massif have been determined in situ in order to evaluate the differences between the various types of gold deposits and discuss trace-element variations in the successive generations of quartz veins. The variability of Ti, Al, Ge, Li and Sb abundances obtained by Laser-Ablation Inductively-Coupled Plasma Mass Spectrometry (LA-ICP-MS) roughly correlates with the origin and the temperature of the mineralizing fluids. The Al content ranges up to 4020 ppm (median value 230 ppm), while the Li content is generally low (< 4 ppm). The elevated Sb content (30–360 ppm Sb) is only related to quartz that immediately preceded deposition of Sb-rich phases. The titanium content of the ore-bearing vein quartz follows bimodal distribution: gold deposits with assumed higher temperature (> 450 °C) formation exhibit higher median values (~10 ppm Ti) than medium-to-low (< 300 °C) temperature deposits (~2 ppm Ti). A statistically significant threshold value (8 ppm Ti) has been recognized as an empirical tool for discriminating between them. In terms of the Ti and Al contents, the studied Bohemian gold deposits fall within and in between fields of orogenic gold and porphyry deposit types.","PeriodicalId":15957,"journal":{"name":"Journal of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2019-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47906122","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: 11
An open access-journal with a difference 具有差异的开放存取日记账
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2019-12-05 DOI: 10.3190/JGEOSCI.282
V. Janoušek
{"title":"An open access-journal with a difference","authors":"V. Janoušek","doi":"10.3190/JGEOSCI.282","DOIUrl":"https://doi.org/10.3190/JGEOSCI.282","url":null,"abstract":"","PeriodicalId":15957,"journal":{"name":"Journal of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2019-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47378723","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
Gladkovskyite, MnTlAs3S6, a new thallium sulfosalt from the Vorontsovskoe gold deposit, Northern Urals, Russia 俄罗斯北乌拉尔Vorontsovskoe金矿新发现的铊硫盐
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2019-11-16 DOI: 10.3190/jgeosci.290
A. Kasatkin, E. Makovicky, J. Plášil, R. Škoda, N. Chukanov, Sergey Y. Stepanov, A. Agakhanov, F. Nestola
1 Fersman Mineralogical Museum of Russian Academy of Sciences, Leninsky Prospekt 18-2, 119071 Moscow, Russia; anatoly.kasatkin@gmail.com 2 Department of Geoscience and Resource Management, University of Copenhagen, Østervoldgade 10, DK-1350, Copenhagen K, Denmark 3 Institute of Physics, Academy of Sciences of the Czech Republic v.v.i, Na Slovance 1999/2, Prague 8, 182 21, Czech Republic 4 Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 2, 611 37, Brno, Czech Republic 5 Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432 Russia 6 Zavaritsky Institute of Geology and Geochemistry, UB RAS, Akademika Vonsovskogo str. 15, 620016 Yekaterinburg, Russia 7 Dipartimento di Geoscienze, Università di Padova, Via Gradenigo 6, I-35131, Padova, Italy * Corresponding author
1俄罗斯科学院费斯曼矿物学博物馆,列宁斯基18-2大街,119071莫斯科;anatoly.kasatkin@gmail.com 2哥本哈根大学地球科学与资源管理系,Østervoldgade 10,丹麦哥本哈根K-1350 3捷克共和国科学院物理研究所,斯洛伐克1999/2,布拉格8,182 21,捷克共和国4马萨里克大学科学院地质科学系,Kotlářská, 611 37,捷克共和国布尔诺5俄罗斯科学院化学物理问题研究所,切尔诺洛夫卡,7 .帕多瓦大学地球科学学院,Via Gradenigo 6, I-35131,意大利帕多瓦*通讯作者
{"title":"Gladkovskyite, MnTlAs3S6, a new thallium sulfosalt from the Vorontsovskoe gold deposit, Northern Urals, Russia","authors":"A. Kasatkin, E. Makovicky, J. Plášil, R. Škoda, N. Chukanov, Sergey Y. Stepanov, A. Agakhanov, F. Nestola","doi":"10.3190/jgeosci.290","DOIUrl":"https://doi.org/10.3190/jgeosci.290","url":null,"abstract":"1 Fersman Mineralogical Museum of Russian Academy of Sciences, Leninsky Prospekt 18-2, 119071 Moscow, Russia; anatoly.kasatkin@gmail.com 2 Department of Geoscience and Resource Management, University of Copenhagen, Østervoldgade 10, DK-1350, Copenhagen K, Denmark 3 Institute of Physics, Academy of Sciences of the Czech Republic v.v.i, Na Slovance 1999/2, Prague 8, 182 21, Czech Republic 4 Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 2, 611 37, Brno, Czech Republic 5 Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432 Russia 6 Zavaritsky Institute of Geology and Geochemistry, UB RAS, Akademika Vonsovskogo str. 15, 620016 Yekaterinburg, Russia 7 Dipartimento di Geoscienze, Università di Padova, Via Gradenigo 6, I-35131, Padova, Italy * Corresponding author","PeriodicalId":15957,"journal":{"name":"Journal of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2019-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43722061","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: 12
期刊
Journal of Geosciences
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