共查询到20条相似文献，搜索用时 62 毫秒
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湘西西安白钨矿矿床的地球化学研究 总被引：6，自引：4，他引：6
使用微量元素、同位素和矿物包裹体等方法对湘西西安白钨矿矿床进行了较详细的地球化学研究。认为该矿床属于沉积-改造型层控矿床，并阐述了矿床的矿源层、成矿时代、成矿条件及控矿因素等问题。 相似文献
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根据近50年的实践经验和大量的实际资料,对层控矿床的基本特点、成矿控制因素（沉积作用、火山活动、构造作用）、后期地质作用的改造与再造及时空分布规律进行了总结。认为：层控岩体应归属于火山－侵入岩;层控整合型矿体与围岩同时形成;主要成矿元素是赋矿围岩固有的。并对层控矿床的找矿布置提出了具体意见。 相似文献
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新疆卡拉玛铜矿床成矿特征及找矿预测 总被引：1，自引：0，他引：1
李泰德 《有色金属矿产与勘查》1997,6(6):326-330
通过对矿床矿化特征及控矿因素的研究，表明瞳拉玛铜矿床属沉积热液改造型层控矿床。本文在总结成矿规律的基础上，对找矿靶位进行了预测。 相似文献
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三保银矿是近年新发现的多金属矿床,已初具中型规模,可望发展成为大型矿床。通过矿床地质特征的研究,提出了“层－构－岩－相”五字控矿规律,认为该矿床具有层控性、多源性和多期次的成矿特点,应属变质－岩浆热液叠加改造型层控矿床。床具有层控性、多源性和多期次的成矿特点,应属变质－岩浆热液叠加改造型层控矿床。 相似文献
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云南省锑矿在全国占有重要地位,成矿地质条件很好,找矿前景广阔。比较集中分布在滇东南地区和滇西地区维西-巍山一带,其次是滇西的保山-施甸、龙陵-潞西一带。具有明显的区域成矿规律和控矿特征。一、区域成矿条件 (一)层控条件在一定区域范围内,锑矿可赋存在数个时代不同的地层单位内,但具有工业意义的锑矿床局限在一至二个岩石-地层单位中。当具备有利的控矿构造条件下,则多有锑矿床(矿体)产出。在一个矿田和矿床内,层控则进而表现为更次一级地层单位的“有利岩层”的控矿。 相似文献
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通过对延边-东宁成矿区带地质特征、控矿条件及典型矿床的研究,总结了延边-东宁成矿区带的控矿地质条件及成矿规律,应用矿床定位预测系统(DPIS),对延边-东宁成矿带进行了成矿预测,结合区内的控矿条件及成矿规律划分了找矿远景区. 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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Muriel Rocher Stéphane Baize Stéphane Jaillet Edward Marc Cushing Yannick Lozac&#x;h Francis Lemeille 《Comptes Rendus Geoscience》2003,335(8):701-708
Calcite samples were extracted both from the rock matrix and the superficial coating of a karstified fault plane of an underground quarry, located in the eastern border of the Paris basin. The karstification is dated as Quaternary. Analysis of mechanical calcite twinning reveals that only the calcite matrix has also undergone a compression trending WNW that can be attributed to the Mio-Pliocene alpine collision. Both coating and matrix have undergone a strike-slip regime with σ1 roughly trending north–south, that could correspond to the regional present-day state of stress, a strike-slip compression rather trending NNW, modified by local phenomena. To cite this article: M. Rocher et al., C. R. Geoscience 335 (2003). 相似文献
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正20141520 Bo Ying(Key Laboratory of Metallogeny and Mineral Assessment,MLR,Beijing 100037,China);Liu Chenglin Saline Spring Hydrochemical Characteristics and Indicators for Potassium Exploration in Southwestern and Northern Tarim Basin,Xinjiang(Acta Geoscientica Sinica,ISSN1006-3021,CN11-3474/P,34(5),2013,p.594-602,5 illus.,3 tables,28 refs.) 相似文献
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正20141243Chen Ge(Hangzhou Research Institute of Petroleum Geology,PetroChina,Hangzhou 310023,China);Si Chunsong Study on Sedimentary Numerical Simulation Method of Fan Delta Sand Body(Journal of Geology, 相似文献
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正20142599Chen Sanming(Guangxi Key Laboratory of Concealed Deposits Exploration,Guilin University of Technology,Guilin541004,China);He Yuzhou Block Model and Reserves Estimation of Panzhihua Iron Deposit Based on 3D Geological Modeling(Journal of Guilin University of Technology,ISSN1674-9057,CN45-1375/N,33(4),2013,p.610-615,9illus.,1table,15refs.) 相似文献
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正20140594 Bai Daoyuan(Hunan Institute of Geology Survey,Changsha 410016,China);Zhong Xiang Faults in the Jingzhou Basin and Their Tectonic Settings(Geotectonica et Metallogenia,ISSN1001-1552,CN44-1595/P,37(2),2013,p.173-183,6illus.,59refs.)Key words:basin evolution,tectonic setting,South China In the Upper Paleozoic and Jurassic se- 相似文献
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正20141912Cao Hui(State Key Laboratory for Continental Tectonics and Dynamics,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China)Gravitational Collapse and Folding during Orogenesis:A Comparative Study of FIA Trends and Fold Axial Plane Traces(Geology in China,ISSN1000-3657,CN11-1167/P,40(6),2013,p.1818-1828,9illus.,35refs.,with 相似文献
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正20141609 Chen Guiying(College of Earth Sciences,Guilin University of Technology,Guilin 541004,China);Han Nairen New Materials of Stylophora from the Upper Cambrian of the Jingxi Area,Guangxi,South China(Acta Palaeontologica Sinica,ISSN0001-6616,CN32-1188Q,52(3),2013,p.288-293,2 illus.,12 refs.)Key words:Stylophora,Guangxi 相似文献
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正20140634 Cao Lingmin(Key Laboratory of Marine Geology and Environment,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China);Xu Yi Finite Difference Tomography of the Crustal Velocity Structure in Tengchong,Yunnan Province(Chinese Journal of Geophysics,ISSN0001-5733,CN11-2074/P,56(4),2013,p.1159-1167,6illus.,35refs.,with English abstract) 相似文献