共查询到20条相似文献，搜索用时 83 毫秒
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川西北巴西金矿田流体成矿地球化学界面及核技术识别研究 总被引：9，自引：0，他引：9
流体成矿地球化学界面是成矿环境条件变化、流体性质演化、流体一环境作用的突变部位,这些部位往往是流体成矿定位的重要场所。在巴西金矿田,应用Ｘ射线荧光测量方法可以探测流体成矿过程中元素浅地表的地球化学异常及蚀变分带,识别汉体成矿定位地球化学界面在浅地表的位置及分布特征,地气测量方法可以查明深部的地球异常和断裂破碎带的位置及特征,确定深部地球化学界面的分布。 相似文献
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在简要介绍流体成矿地球化学界面的概念、组成、分类、地球化学标志及研究意义的基础上，讨论了流体地球化学界面与铀成矿的关系，提出了铀成矿流体地球化学界面研究的基本思路和方法，指出了今后应重视开展研究的某些重大地质问题。 相似文献
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本文论述了应用核物探Ｘ射线荧光技术勘查Ｐｂ、Ｚｎ矿的物理基础、地质－地球化学依据和方法技术。实践表明，本技术可以现场快速进行土壤次生晕测量、岩石地球化学测量、粉末样品测量和原位测定Ｐｂ、Ｚｎ品位． 相似文献
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成矿流体地球化学界面：Ⅲ应用实例研究 总被引：1，自引：0，他引：1
本文以田湾金矿带为例，研究了地球化学界面对流体成矿的控制作用。研究发现，田湾金矿带流体成矿的最佳地球化学界面主要为：成矿流体地球化学界面（区域地球物理条件变异面、地质条件突变界面），流体性质演化界面（温度界面、压力界面、PH值面、Eh界面）和流体－环境作用界面。 相似文献
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上房白钨矿是武夷山成矿带新发现的大型白钨矿矿床,其勘查工作遵循1∶20万水系沉积物测量→1∶5万水系沉积物测量→1∶1万土壤测量→预查→普查→详查的顺序,白钨矿用肉眼难以识别,土壤地球化学测量对找矿起到关键的作用。该矿的土壤地球化学异常特征研究对寻找同类矿床具有指导意义。 相似文献
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成矿流体地球化学界面：Ⅱ组成及标志 总被引：1，自引：0，他引：1
本文主要介绍了地球化学界面的三个组成部分（环境条件突变界面、流体性质演化界面、流体－环境作用界面），地球化学界面的标志及识别方法。 相似文献
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马庄山矿区构造地球化学测量研究 总被引：1，自引：1，他引：1
新疆哈密马庄山金矿与构造关系密切，并严格受构造控制。根据马庄山矿区构造地球化学测量的研究，归纳出了构造地球化学测量的基本理论和方法，指出开展构造地球化学测量找矿的路径。概略研究了构造地球化学异常与构造和矿体的关系 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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正1 Introduction Geological studies established on several sections in Lanping-Simao basin have shown that the salt-bearing strata of Mengyejing formation(Yunlong Fm.in Lanping basin)are constituted by an alternation of salt layers and interbedded facies.The latter consists mainly of mudstones,and mudstone-rich conglomerate.The mineralogy and geochemistry of salt-bearing beds and 相似文献
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正On 22nd April 2014,with the approach of the 45th World Earth Day,China’s Ministry of Land and resources issued the status of China’s mineral resources in 2013.The first task of the prospecting breakthrough strategy action implemented in the last five years has been completed,and China’s security capacity for mineral resources has been significantly improved.In the 相似文献
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正There are more than 700 salt lakes with area of more than 1km2 on the Qinghai-Tibet Plateau of China.In recent years,an oilfield brine was also found in the Nanyishan Section of Qaidam Basin in the Qinghai-Tibet 相似文献
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正1 Introduction Physical and numerical models are constructed to investigate the evolution and mechanism of salt migration driven by tectonic processes.In recent years,we have designed and ran series of models to simulate salt 相似文献
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YUAN Qin LI Jianguo QIN Zhanjie WEI Haicheng SHENG Shurong SHAN Fashou 《《地质学报》英文版》2014,88(Z1):276-276
正The study of Cretaceous-Palaeogene salt-bearing strata of the Khorat Basin Laos and the Lanping-Simao Basin in Yunnan,China has an great significance not only in explaining the basin evolution and the genesis of potash 相似文献
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正Potash is one of the long-term scare deposits in China,and potash prospecting has long been listed as a key brainstorm project for our nation and geological prospecting units.There have been considerable studies in search for potash deposits in the Kuqa depression of the Tarim basin(Jackson et al.,1991;Gemmer et al.,2004;Vendeville,2005;Vendeville and Jackson,1992a,1992b), 相似文献
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正1 Introduction Qaidam Basin in Qinghai,including 43 salt lakes with multiple dominant mineral such as potassium,magnesium,lithium etc.,is the most intensive distribution of Saline 相似文献