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Chemical composition of tourmalines from the Manjaka pegmatite and its exocontact, Sahatany Valley, Madagascar 马达加斯加撒哈拉坦尼山谷曼贾卡伟晶岩及其外接岩中碧玺的化学成分
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-12-13 DOI: 10.3190/jgeosci.374
P. Gadas, M. Novák, M. Vašinová Galiová, F. Pezzotta
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引用次数: 0
Single-crystal structure refinement of bukovite, (Cu3Fe)Σ4Tl2Se4 (Cu3Fe)Σ4Tl2Se4布柯韦石的单晶结构细化
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-12-13 DOI: 10.3190/jgeosci.373
J. Sejkora, D. Mauro, C. Biagioni
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引用次数: 0
Navrotskyite, K2Na10(UO2)3(SO4)9·2H2O, a new sodium and potassium uranyl-sulfate mineral from the Blue Lizard mine, Red Canyon, White Canyon District, San Juan County, Utah Navrotskyite, K2Na10(UO2)3(SO4)9-2H2O, 一种产自犹他州圣胡安县白峡谷区红峡谷蓝蜥蜴矿的新型钠钾铀硫酸盐矿物
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-12-13 DOI: 10.3190/jgeosci.378
T. Olds, A. R. Kampf, S.L. Perry, X. Guo, J. Marty, T.P. Rose, P.C. Burns
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引用次数: 0
New type of epithermal manganese mineralization from the Banská Hodruša precious and base metal deposit at the Rozália mine, Hodruša- Hámre, Slovakia 斯洛伐克 Hodruša- Hámre 罗扎利亚矿区 Banská Hodruša 贵金属和贱金属矿床的新型热液锰矿化现象
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-12-13 DOI: 10.3190/jgeosci.376
M. Rybárik, M. Števko, P. Koděra, J. Prcúch
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引用次数: 0
Perthite in nepheline syenite from the kakortokite unit in the Ilímaussaq Complex, south Greenland 格陵兰岛南部 Ilímaussaq 建筑群卡科托克岩单元霞石中的珀尔帖石
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-12-13 DOI: 10.3190/jgeosci.375
H. K. Schønwandt, G. B. Barnes, T. Ulrich
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引用次数: 0
Deformation pattern of the Lower Triassic sedimentary formations of the Silica Nappe: Evidence for dynamics of the Western Carpathian orogen 西里卡脉下三叠统沉积地层的变形模式:西喀尔巴阡山造山运动的证据
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-12-13 DOI: 10.3190/jgeosci.377
R. Vojtko, A. Lačný, P. Jeřábek, T. Potočný, S. Gerátová, J. Kilík, D. Plašienka, O. Lexa
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引用次数: 0
Mineralogical and geochemical studies of Cu-Bi-Ag±W ores from Janjevo (Kosovo): Insights into the Bi sulfosalt mineralogy and the distribution of bismuth in base metal sulfides Janjevo(科索沃)Cu-Bi-Ag±W矿石的矿物学和地球化学研究:铋磺酸盐矿物学和铋在贱金属硫化物中的分布
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-08-13 DOI: 10.3190/jgeosci.371
Sławomir Mederski, J. Pršek, Joanna Kołodziejczyk, Konrad Kluza, V. Melfos, K. Adamek, D. Dimitrova
This work presents a mineralogical and geochemical study of Cu–Bi–Ag ± W ores from Janjevo in the Trepça Mineral Belt in Kosovo. This locality indicates a new type of Bi–Cu ± Au mineralization within the Kizhnica–Hajvalia–Badovc ore field, including Cu–Bi ± Ag ± As sulfosalts paragenesis previously not described in Kosovo and in this part of the Vardar Zone. Chemical composition of Bi– Pb ± Cu ±Ag and Cu – Bi ± Ag ± As sulfosalts, sulfides, and associated miner - als, as well as their paragenetic relationships and the distribution of minor and trace elements in main ore minerals, are discussed based on microscopy, microprobe, and laser ablation inductively coupled plasma mass spectrometry studies. The Cu–Bi– Ag ± W hydrothermal mineralization in Janjevo was formed during four stages: (1) Early base metal stage, (2) Bismuth stage, (3) Main stage, and (4) Late stage. The Early base metal stage is represented by pyrite, sphalerite I, chalcopyrite I, galena I, bournonite I, tetrahedrite I, siderite, and quartz. The Bismuth stage includes arsenopyrite I, löllingite, native bismuth, galena II, chalcopyrite II, tetrahedrite II, quartz, siderite, and Bi – Pb ± Cu ± Ag sulfosalts: bismuthinite, aikinite, krupkaite, cosalite, and gustavite. The Main stage is represented by chalcopyrite III, tetrahedrite group minerals (tetrahedrite and tennantite) III, galena III, sphalerite II, arsenopyrite II, bournonite II, and siderite. The Cu– Bi ± Ag ± As sulfosalts (pearceite, cupropearceite, wittichenite, and an unknown phase: AgCuBiS 3 ) associated with galena IV, siderite, and quartz were formed in the final low-temperature Late stage. The application of GGIMFis geothermometry on sphalerite gives the following sphalerite precipitation temperatures: 220–272 °C for sphalerite I and 160–190 °C for sphalerite II. Presented results show that in addition to numerous Bi sulfosalts in Janjevo Cu –Bi–Ag ± W ores, bismuth has been incorporated into base metal sulfides, as well as arsenopyrite. The main carrier of bismuth is arsenopyrite I, which has started the crystallization of the bismuth stage.
本工作对科索沃Trepça矿带Janjevo的Cu–Bi–Ag±W矿石进行了矿物学和地球化学研究。该位置表明Kizhnica–Hajvalia–Badovc矿田内存在一种新型的Bi–Cu±Au矿化,包括以前在科索沃和Vardar带这一地区未描述的Cu–Bi±Ag±As磺盐共生作用。基于显微镜、微探针和激光烧蚀电感耦合等离子体质谱研究,讨论了Bi–Pb±Cu±Ag和Cu–Bi±Ag±As磺酸盐、硫化物和伴生矿物的化学组成,以及它们的共生关系和微量元素在主要矿物中的分布。Janjevo的Cu–Bi–Ag±W热液成矿形成于四个阶段:(1)早期贱金属阶段、(2)铋阶段、(3)主阶段和(4)晚期。早期贱金属阶段以黄铁矿、闪锌矿I、黄铜矿I、方铅矿I、布尔诺岩I、四面体I、菱铁矿和石英为代表。铋阶段包括毒砂I、löllingite、天然铋、方铅矿II、黄铜矿II、四面体II、石英、菱铁矿和Bi–Pb±Cu±Ag磺盐:铋矿、亚辉橄榄岩、克鲁普海特、共钠石和古斯塔维特。主要阶段以黄铜矿III、四面体族矿物(四面体和tennantite)III、方铅矿III、闪锌矿II、毒砂II、布尔诺矿II和菱铁矿为代表。与方铅矿IV、菱铁矿和石英相关的Cu–Bi±Ag±As磺盐(磷铈矿、铜砷铁矿、硫铁矿和未知相:AgCuBiS3)形成于最后的低温晚期。GGIMFis地热测量法在闪锌矿上的应用给出了以下闪锌矿沉淀温度:闪锌矿I为220–272°C,闪锌矿II为160–190°C。研究结果表明,除了Janjevo Cu–Bi–Ag±W矿石中的大量铋磺酸盐外,铋还被掺入了贱金属硫化物和毒砂中。铋的主要载体是毒砂I,它已经开始了铋阶段的结晶。
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引用次数: 0
WinSpingc, a Windows program for spinel supergroup minerals WinSpingc,一个用于尖晶石超群矿物的Windows程序
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-08-13 DOI: 10.3190/jgeosci.369
F. Yavuz, Vural Yavuz, P. Bačík
A Microsoft ® Visual Basic software, called WinSpingc, has been developed to calculate and classify wet chemical and electron-microprobe spinel supergroup mineral analyses based on the New Minerals, Nomenclature and Classification (CNMMN) of the International Mineralogical Association (IMA–19) nomenclature scheme. The program evaluates the 60 approved species according to the dominant valance and constituents in the general AB 2 X 4 formula for the spinel, ulvöspinel, carrollite, linnaeite, tyrellite and bornhardtite subgroups that belong to the oxyspinel, thiospinel and selenospinel groups. Mineral analyses of the oxyspinel group are calculated based on 3 cations and 4 oxygen atoms per formula unit, whereas the formulae of thiospinel and selenospinel analyses are on the basis of 7 atoms per formula unit. Employing the anions of spinel supergroup mineral analyses, the program first assigns three groups on the basis of dominant X anion, including O 2– , S 2– and Se 2– , determines subgroups according to the cation charge arrangement combinations and then defines the spinel species in each subgroup based on the dominant valance and constituents. The Fe 3+ and Fe 2+ , as well as the Mn 3+ , Mn 2+ , Co 3+ and Co 2+ contents from microprobe-derived total FeO, MnO and CoO (wt. %) amounts, are estimated by stoichiometric constraints. WinSpingc allows the users to enter total 57 input variables for groups as well as to type and load the multiple spinel supergroup compositions in the data entry section, to edit and load the Microsoft ® Excel files in calculating, classifying and naming the spinel species, and to store all the calculated parameters in the Microsoft ® Excel file for further evaluations. The program is distributed as a self-extracting setup file, including the necessary support files used by the program, a help file, and representative sample data files.
已经开发了一个名为WinSpingc的Microsoft®Visual Basic软件,用于根据国际矿物学协会(IMA-19)的新矿物、命名和分类(CNMMN)命名方案计算和分类湿化学和电子微探针尖晶石超群矿物分析。该项目根据属于含氧尖晶石、硫尖晶石和硒尖晶石族的尖晶石、ulvö尖晶石、钙橄榄石、linnaite、苯乙烯和龙脑硬石亚组的AB 2 X 4通用配方中的主要价值和成分,对60种获批物种进行了评估。含氧尖晶石组的矿物分析是基于每化学式单位3个阳离子和4个氧原子计算的,而硫尖晶石和硒尖晶石分析的化学式是基于每分子式单位7个原子计算的。利用尖晶石超群矿物分析的阴离子,该程序首先根据主要的X阴离子分配三个组,包括O2–、S2–和Se 2–,根据阳离子电荷排列组合确定亚组,然后根据主要价和成分定义每个亚组中的尖晶石物种。Fe3+和Fe2+,以及来自微探针衍生的FeO、MnO和CoO(wt.%)总量的Mn3+、Mn2+、Co3+和Co2+含量,通过化学计量约束来估计。WinSpingc允许用户为组输入总共57个输入变量,并在数据输入部分键入和加载多个尖晶石超组成分,在计算、分类和命名尖晶石物种时编辑和加载Microsoft®Excel文件,并在Microsoft®Excel文件中存储所有计算参数以供进一步评估。该程序以自解压设置文件的形式分发,包括程序使用的必要支持文件、帮助文件和代表性示例数据文件。
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引用次数: 0
Review of zeolite mineralizations from the high-grade metamorphosed Strážek Unit, Moldanubian Zone, Czech Republic 捷克Moldanubian高品位变质Strážek单元沸石矿化研究进展
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-08-13 DOI: 10.3190/jgeosci.370
M. Novak, J. Toman, R. Škoda, D. Šikola, J. Mazuch
.
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引用次数: 0
The crystal structure of magnesian halotrichite, (Fe,Mg)Al2(SO4)4·22H2O: hydrogen bonding, geometrical parameters and structural complexity 镁盐三闪石(Fe,Mg)Al2(SO4)4·22H2O)的晶体结构:氢键、几何参数和结构复杂性
IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-08-13 DOI: 10.3190/jgeosci.372
E. Zhitova, R. M. Sheveleva, A. Zolotarev, S. Krivovichev, V. Shilovskikh, A. Nuzhdaev, M. Nazarova
The crystal structure of magnesian halotrichite has been refined for two samples collected as white efflorescences from the surface of geothermal fields associated with the Koshelevsky (sample VK4-09 ) and Centralny Semyachik (sample SC2-20 ) volcanoes (both Kamchatka peninsula, Russia). Halotrichite and its Mg-rich varieties are common products of the acid leaching of rocks, both volcanic and technogenic. The crystal structures of two halotrichite crystals were refined in the P 2 1 / n space group ( vs. P 2 1 / c used previously) with the unit-cell parameters a = 6.1947(2)/ 6.1963(5) Å, b = 24.2966(8)/ 24.2821(14) Å, c = 21.0593(8)/ 21.063(2) Å, β = 96.512(4)/ 96.563(9) º, V = 3149.2(2)/ 3148.3(5) Å 3 , Z = 4 to R 1 = 0.055 and 0.067 for 5673 and 3936 reflections with I > 2σ I reflections, respectively. The crystal structure consists of isolated Al(H 2 O) 6 octahedra, SO 4 tetrahedra, H 2 O molecules and [ X (SO 4 )(H 2 O) 5 ] 0 clusters ( X = Fe, Mg). The chemical analyses of both samples show their enrichment of Mg at the Fe 2+ site. The analysis of geometrical parameters of the crystal structures of halotrichite and its Mg-analogue pickeringite suggests that the localization of O atoms carried out in this work is more accurate and the single-crystal X-ray diffraction data for the first time allowed localization of hydrogen atom positions. The refined number of H 2 O molecules agrees with the ideal chemical formula. The crystal structure complexity of halotrichite is estimated as I G,total = 2305 bits/cell, which belongs to the family of very complex mineral structures. The contribution of hydrogen bonding system plays a significant role in the overall bonding scheme and the overall complexity of the crystal structure, increasing the Shannon information amount more than twice from I G,total(noH) = 988 bits/cell (no hydrogen atoms) to I G,total = 2305 bits/cell (all atoms including hydrogen). The comparative distribution of halotrichite relative to other Fe-Al hydrated sulfates from the standpoint of structural complexity is considered.
从与Koshelevsky火山(样本VK4-09)和Centralny Semyachik火山(样本SC2-20)(均为俄罗斯堪察加半岛)相关的地热田表面采集的两个白色风化物样本中,对镁卤虫岩的晶体结构进行了精制。卤铜矿及其富含镁的品种是火山岩和技术成因岩石酸浸的常见产物。在P 2 1/n空间群中(与之前使用的P 2 1/c相比),晶胞参数a=6.1947(2)/6.1963(5)Å,b=24.2966(8)/24.2821(14)Å;c=21.0593(8)/21.063(2)Å,分别地晶体结构由孤立的Al(H2O)6八面体、SO4四面体、H2O分子和[X(SO4)(H2O)5]0团簇(X=Fe,Mg)组成。两个样品的化学分析表明,它们在Fe2+位点富集了Mg。对卤代三氯氢石及其类似镁的凹凸棒石晶体结构几何参数的分析表明,本工作进行的O原子定位更准确,单晶X射线衍射数据首次允许氢原子位置的定位。H2 O分子的精细数目与理想化学式一致。卤虫岩的晶体结构复杂度估计为I G,总=2305比特/格,属于非常复杂的矿物结构家族。氢键系统的贡献在整个键合方案和晶体结构的整体复杂性中起着重要作用,将Shannon信息量增加了两倍多,从IG,total(noH)=988比特/单元(无氢原子)增加到IG,toal=2305比特/单元。从结构复杂性的角度出发,考虑了卤虫岩相对于其他铁铝水合硫酸盐的比较分布。
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引用次数: 5
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Journal of Geosciences
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