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    刘金龙, 李伫民, 周永恒, 董存杰. 中蒙俄东段地区地质背景及优势金属矿产成矿时空分布规律[J]. 中国地质. DOI: 10.12029/gc20230215001
    引用本文: 刘金龙, 李伫民, 周永恒, 董存杰. 中蒙俄东段地区地质背景及优势金属矿产成矿时空分布规律[J]. 中国地质. DOI: 10.12029/gc20230215001
    LIU Jinlong, LI Zhumin, ZHOU Yongheng, DONG Cunjie. Geological setting, spatiotemporal distribution of predominant metal deposits in eastern section of China, Mongolia and Russia[J]. GEOLOGY IN CHINA. DOI: 10.12029/gc20230215001
    Citation: LIU Jinlong, LI Zhumin, ZHOU Yongheng, DONG Cunjie. Geological setting, spatiotemporal distribution of predominant metal deposits in eastern section of China, Mongolia and Russia[J]. GEOLOGY IN CHINA. DOI: 10.12029/gc20230215001

    中蒙俄东段地区地质背景及优势金属矿产成矿时空分布规律

    Geological setting, spatiotemporal distribution of predominant metal deposits in eastern section of China, Mongolia and Russia

    • 摘要:研究目的】中蒙俄东段地区地质演化历史复杂、成矿作用强烈,加强跨境地区成矿作用的研究,尤其是全区尺度成矿规律的总结,对提升区域基础地质研究水平和找矿勘查具有重要意义。【研究方法】通过收集各类地质资料,对成矿地质特征、资源禀赋、矿床时空分布、成矿背景等进行了梳理。【研究结果】研究区已探明或发现的超大型矿床10处、大型矿床33处、中型矿床55处、小型矿床(及矿点)众多。总体上可划分为与前寒武纪构造体系有关的矿床、与古亚洲洋构造体系有关矿床、与蒙古-鄂霍次克构造体系有关的矿床、与蒙古-鄂霍次克洋和古太平洋构造体系叠加的有关的矿床。【结论】区域矿床时空规律明显,各个历史时期形成的最重要矿产包括:分布在西阿尔丹-苏塔姆地区的太古宙Fe矿床;分布在乌多坎-戴奥斯莱格里尔地区的古元古代Cu、Fe、Ti矿床和贝加尔-木雅构造带的新元古代Pb、Zn矿床;分布在叶尼塞-后贝加尔边构造带的寒武纪-志留纪Fe、Zn、Ti矿床;分布在贝加尔-帕托姆构造带的石炭纪Au矿床;分布在奥洪-色楞格地区的三叠纪Cu、Mo矿床和安加拉河-伊利姆地区的晚二叠-早三叠的Fe矿床;分布在蒙古-鄂霍次克构造带及其周边地区的中侏罗世-白垩纪的Au、Pb、Zn、W、Mo矿床。

       

      Abstract: Objective The eastern section of China, Mongolia and Russia has a complex geological evolution history and strong mineralization. Strengthening the study of cross-border regional mineralization, especially the summary of region-wide mineralization regularity, is of great significance for improving the level of regional basic geological research and prospecting and exploration. Methods By collecting various geological datas, the metallogenic geological characteristics, resource endowment, temporal and spatial distribution of deposits, metallogenic background and so on are sorted out. Results In the study area, 10 super-large deposits, 33 large deposits, 55 medium deposits and numerous small deposits (and occurrences) have been proved or discovered. Generally, they can be divided into the deposits related to the Precambrian tectonic system, the deposits related to the Paleo-Asian Ocean tectonic system, the deposits related to the Mongolia-Okhotsk tectonic system, and the deposits related to the superposition Mongolia-Okhotsk tectonic system and the Paleo-Pacific tectonic system. Conclusions The spatial and temporal rules of regional deposits are obvious. The most important deposits formed in various historical periods include:Archean Fe deposits distribute in the West Aldan -Sutam area; The Paleoproterozoic Cu, Fe, Ti deposits distribute in the Udokan-DyosLeglier area and the Neoproterozoic Pb, Zn deposits distribute in the Baikal-Muya tectonic zone; The Cambrian-Silurian Fe, Zn, Ti deposits distribute in the Yenisey-Transbaikalian tectonic belt; The Carboniferous Au deposits distribute in the Baikal-Patom tectonic zone; The Triassic Cu and Mo deposits in the Orhon-Selenge region and the Late Permian-Early Triassic Fe deposits in the Angara-Ilim region; The Middle Jurassic to Cretaceous Au, Pb, Zn, W, Mo deposits distribute in the Mongolia-Okhotsk tectonic belt and its surrounding areas.

       

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