共查询到20条相似文献，搜索用时 137 毫秒
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分析了右玉县后窑子金矿矿床的区域成矿地质背景和矿石的质量特征,初步认为矿床成因为与剪切构造变形带相关的变质-热液型金矿床,剪切构造变形带严格控制着矿区金矿化的空间展布。同时,对该区成矿理论研究和后续找矿工作进行了有意义的探索。 相似文献
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通过对黔东南雷公山褶断带火烧寨金锑矿床区域成矿地质背景、矿床地质特征的研究分析,提出了该矿床属幔源—混合型地下热卤水的成因观点,探讨了该地区石英脉(构造蚀变岩)型金矿的找矿潜力。 相似文献
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皮家寨水系沉积物化探异常位于大别山北坡北淮阳构造带,受控于龟(山)-梅(山)断裂,综合异常区面积32km2,异常组分复杂,套合性较好,强度高。该异常区属于北淮阳凉亭金成矿带,是老湾金成矿带的东延部分。为了提升该地区的矿产地质研究程度、总结以前找矿成果、指导以后的找矿工作,作者对比老湾金矿的成矿模型、并运用韧性剪切带成矿的金矿成矿新理论,从区域成矿背景、地层、构造等几方面探讨了该金异常区的成矿条件,认为该异常区成矿地质条件优越,深部应具有较大的找矿潜力,并为该地区以后的矿产勘查工作指明了方向。 相似文献
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黔东南剪切带金矿的分布规律与成矿模式 总被引：7，自引：4，他引：3
根据地质勘查资料对黔东南地区金矿的成矿地质背景条件进行了综合研究,认为该区金矿的成矿作用过程与剪切构造作用有关;指出隐伏东西向构造控制着矿田成矿田级矿化区的分布,北东-北北东向等构造与东西向构造的交汇控制着矿床的分布,褶皱加断裂组合的脆性构造变形主要控制脉型金矿的产出,中深部过渡型剪切变形则控制着细脉、网脉状金矿;探讨了金成矿作用的时空演化,进而建立了该区剪切带金矿的成矿模式。 相似文献
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海南岛戈枕含金剪切带煌斑岩与金成矿关系研究 总被引：2，自引：1，他引：1
许德如 《大地构造与成矿学》2000,24(3):258-265
在详细的矿床地质、岩石地球化学和同位素年代学综合研究基础上,结合区域构造演化的特点,着重对金矿与煌斑岩的成因关系进行了剖析,认为戈枕含金剪切带煌斑岩与金矿不仅具有生成构造环境上的联系,而且对金成矿具有重要的物源贡献,是金矿找矿标志。煌斑岩与金矿是长期的区域构造活动、岩浆活动事件耦合作用的产物。 相似文献
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黔东南重磁异常与金异常特征及找矿意义 总被引：1，自引：0，他引：1
为了深入挖掘黔东南地区的找矿潜力,对黔东南地区区域重磁异常进行解释,研究东部地区的天锦黎金矿密集区及西部地区的金化探异常分布特征,发现金矿床（点）和金化探（元素、块体）异常的产出,同重、磁异常平面分布和推断的岩浆岩侵入体（基性岩类、酸性岩、构造蚀变岩）及区域性深大断裂构造（东西向、南北向）的分布,存在着空间、时间和成因上的联系,由此拓开了黔东南天锦黎金矿密集区及外围金矿地质找矿的新思路,不要只限于在相关地质层位里和北东向构造及伴生断裂（即“背斜加一刀”）交会处及其附近,来寻找变质碎屑岩中的脉型金矿。 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