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排庭金矿是贵州三都——丹寨锑、汞、金成矿带上,继苗龙锑-金矿、宏发厂汞-金矿后首次发现的产于中下寒武统独立型的微细浸染型金矿,其矿体受断裂构造、地层、岩性等因素控制,矿床规模为中型。对该矿床的地质特征及成因进行总结和分析,对于华南褶皱带与扬子准地台过渡带寻找寒武纪地层中的微细浸染型金矿具有重要的借鉴和指导意义。 相似文献
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泥堡金矿与水银洞金矿地质特征初步对比 总被引:2,自引:0,他引:2
泥堡金矿及水银洞金矿是大型金矿床,两矿床赋矿地层、容矿岩石、矿体产出特征、金的赋存状态等诸多特征相似;并处于富金的峨眉山玄武岩东侧,其矿床成因与该玄武岩有密切关系。应加强从泥堡-戈塘-紫木凼-水银洞一线地层中P3l 的研究,指导金矿找矿及勘查工作。 相似文献
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二叠系龙潭组是黔西南重要成煤期煤系地层,更是许多微细粒浸染型金矿的赋矿地层之一,该套地层底部金及相关低温元素(As、Ag、sb、H卧叽、Pb和zn)丰度较高,为一煤金建造,该建造具有丰富的物源、热源和水源和良好的层位、岩性组合及构造条件,这些对金矿形成贡献作用明显,认为龙潭组煤金建造在黔西南一些金矿形成过程中的控制作用至关重要。 相似文献
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《西北地质》2015,(3)
新疆富蕴县希勒阔腊金矿位于扎河坝-阿尔曼台金、铜、铬、铁等多金属成矿带中段,金矿体赋存于北西向构造蚀变带中,成矿地质条件非常有利,但找矿成果欠佳。通过对矿床区域地质背景、矿床地质特征、矿化蚀变特征及地球化学异常特征等的分析,总结了矿床的控矿因素,并与新疆青河县顿巴斯套外围金矿的控矿因素做了对比,认为希勒阔腊金矿成因类型为受构造、地层及中酸性岩脉综合控制的构造蚀变岩型金矿,下泥盆统托让格库都克组凝灰质碎屑岩是主要矿源层,成矿作用同多期动力热液活动有关,发育于闪长玢岩与围岩的内外接触带为重要的赋矿部位。在扎河坝-阿尔曼台断裂带两侧的韧脆性剪切带中,对于有利的地层及岩脉发育部位所圈定的1:10万和1:5万金化探异常进行查证,有望找到小到中型金矿。 相似文献
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泥堡金矿的矿石类型有凝灰质生物碎屑灰岩型金矿石及凝灰岩型金矿石;泥堡金矿与水银洞金矿都是大型金矿床,两矿床赋矿地层、容矿岩石、矿体产出特征、金的赋存状态等诸多特征相似;并处于富金的峨眉山玄武岩东侧,其矿床因与该玄武岩有密切关系。应加强从泥堡——戈塘——紫木凼——水银洞一线地层中P11的研究,指导金矿找矿及勘查工作。 相似文献
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长城式金矿是近几年在冀东地区发现的一种新的金矿类型,该类型金矿产在中元古界碳酸盐岩及碎屑岩地层中,文章阐述了金矿床的硫、铅、氢、氧、碳等同位素地球化学特征,从而提供了矿床成因信息。 相似文献
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吉林省汪清东北部发育一套中浅变质岩系,前人一般认为属早二叠世。笔者从岩石学,矿物学,变质变形特征入手,探讨了变质岩的成岩环境。阐述了可以与新元古代五道沟群对比依据。并根据地层,侵入体特征及地球化学,地球物理等资料,初步分析了找矿前景,拓宽了该地区金矿的找矿思路。 相似文献
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Gilles Serge Odin 《Comptes Rendus Geoscience》2002,334(6):409-414
Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414. 相似文献
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Emmanuel Skourtsos Daniel Vachard Alexandra Zambetakis-Lekkas Rossana Martini Louisette Zaninetti 《Comptes Rendus Geoscience》2002,334(12):925-931
Some olistolites reworked in a Tertiary flysch of Mount Parnon (Peloponnesus, Greece) exhibit a Late Permian assemblage, dominated by Paradunbarula (Shindella) shindensis, Hemigordiopsis cf. luquensis and Colaniella aff. minima. This association corresponds to the Late Wuchiapingian (=Late Dzhulfian), a substage whose algae and foraminifera are generally little known. Contemporaneous limestones crop out in the middle part of the Episkopi Formation in Hydra, but they are rather commonly reworked in Mesozoic and Cainozoic sequences. The palaeobiogeographical affinities shared by the foraminiferal markers of Greece, southeastern Pamir, and southern China, are very strong (up to the specific level), and are congruent with the Pangea B reconstructions. To cite this article: E. Skourtsos et al., C. R. Geoscience 334 (2002) 925–931. 相似文献
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正20141596 Liu Yunhuan(School of Earth Sciences and Resources,Chang’an University,Xi’an 710054,China);Shao Tiequan Early Cambrian Quadrapyrgites Fossils of Xixiang Boita in Southern Shaanxi Province(Journal of Earth Sciences and Environment,ISSN1672-6561,CN61-1423/P,35(3),2013,p.39-43,3 illus.,20 refs.) 相似文献
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正20141719 Chen Zhijun(State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China);Chen Jianguo Automated Batch Mapping Solution for Serial Maps:A Case Study of Exploration Geochemistry Maps(Journal of Geology,ISSN1674-3636,CN32-1796/P,37(3),2013,p.456-464,2 illus.,2 tables,10 refs.) 相似文献
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正20140962 Chen Fenning(Xi’an Institute of Geology and Mineral Resources,Xi’an710054,China);Chen Ruiming Late Miocene-Early Pleistocene Ostracoda Fauna of Gyirong Basin,Southern Tibet(Acta Geologica Sinica,ISSN0001-5717,CN11-1951/P,87(6),2013,p.872-886,6illus.,56refs.) 相似文献
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正1.IGNEOUS PETROLOGY20142008Cai Jinhui(Wuhan Center,China Geological Survey,Wuhan 430205,China);Liu Wei Zircon U-Pb Geochronology and Mineralization Significance of Granodiorites from Fuzichong Pb-Zn Deposit,Guangxi,South China(Geology and Mineral Resources of South China,ISSN1007-3701,CN42-1417/P,29(4),2013,p.271-281,7illus., 相似文献
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正20141205Cheng Weiming(State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China);Xia Yao Regional Hazard Assessment of Disaster Environment for Debris Flows:Taking Jundu Mountain,Beijing as an 相似文献
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正20141266Fan Chaoyan(Guangdong Provincial Key Laboratory of Mineral Resources and Geological Processes,Guangzhou 510275,China);Wang Zhenghai On Error Analysis and Correction Method of Measured Strata Section with Wire Projection Method(Journal of 相似文献
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正20140582 Fang Xisheng(Key Lab.of Marine Sedimentology and Environmental Geology,First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China);Shi Xuefa Mineralogy of Surface Sediment in the Eastern Area off the Ryukyu Islands and Its Geological Significance(Marine Geology Quaternary Geology,ISSN0256-1492,CN37 相似文献
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正20141810 Bian Yumei(Geological Environmental Monitoring Center of Liaoning Province,Shenyang 110032,China);Zhang Jing Zoning Haicheng,Liaoning Province,by GeoHazard Risk and Geo-Hazard Assessment(Journal of Geological Hazards and Environment Preservation,ISSN1006-4362,CN51-1467/P,24(3),2013,p.5-9,2 illus.,tables,refs.) 相似文献