中国钼矿资源特征及其成矿规律概要
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本文得到中央级公益性科研院所基本科研业务费专项资金项目(编号: K1305)、中国地质大调查项目中国矿产地质与区域成矿规律综合研究(中国矿产地质志)项目(编号:12120114039701、12120114039601)和全国矿产资源潜力评价项目(编号:1212010633901)联合资助。


Resources Characteristics of Molybdenum Deposits and Their Regional Metallogeny in China
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    摘要:

    中国钼矿资源丰富,是我国的优势矿种之一。近年来钼矿找矿成果突出,钼矿在我国遍地开花,呈现出“面型”分布的特征。从地理分布上看,总体集中在中国东部地区,其中河南省钼储量居首;从矿床规模看,查明的超大型钼矿床约占全国钼资源量的53%,大型钼矿床约占30%,中型钼矿床约占14%,小型钼矿床和钼矿(化)点仅占约3%;从矿床类型来看,主要有斑岩型、矽卡岩型、热液(脉)型和沉积(变质)型,分别占钼总资源量的85.75%,8.83%,2.79%,2.63%。根据辉钼矿Re-Os同位素年龄将中国钼成矿期划分为六个阶段:前寒武纪(>800Ma)、寒武纪—志留纪(540~415Ma,加里东期)、泥盆纪—二叠纪(400~290Ma,海西期)、三叠纪(260~200Ma、印支期)、侏罗纪—白垩纪(195~70Ma、燕山期)和古近纪—新近纪(65~10Ma、喜山期),其中燕山期是最主要的成矿期,形成了约76.69%钼资源,其次为喜山期。本文初步总结了中国钼矿的时空分布特征及其成矿规律,将全国钼矿划分为41个Ⅲ级成钼带,13个Ⅱ级成钼省,4个Ⅰ级成钼域,建立了中国钼矿成矿谱系,探讨了不同类型钼矿的时空演化、钼成矿作用与构造演化的关系,并认为钼是反映中国地壳演化的有效示踪剂。

    Abstract:

    Molybdenum is one of the dominant minerals in China because of its rich reserves. In recent years, the distribution of molybdenum deposits is characterized by “surface type” distribution, because molybdenum deposits have been got considerable prospecting breakthrough. In general, these molybdenum deposits are concentrated in the eastern China, including the largest molybdenum reserves of Henan province. From the scale of molybdenum deposits, the identified resources of superlarge deposit is the most important which accounts for about 53% of the whole country, the large deposit accounts for about 30%, the medium-sized deposit accounts for about 14%, small-sized deposit, mine dot and mineralization account for about 3%. Molybdenum deposits are mainly of porphyry type, skarn type, hydrothermal (vein) type and sedimentary (metamorphic) type in genesis, the identified resources of these types are accounting for 85.75%, 8.83%, 2.79% and 2.63% of the total resources respectively. Base on the statistics of precise chronology data of molybdenites Re-Os, Mo-mineralization can be divided into 6 periods in Chinese geological history. These periods of Mo-mineralization are Precambrian (>800Ma), Cambrian-Silurian (540~415Ma, Caledonian), Devonian-Permian (400~290Ma, Hecynian), Triassic (260~200Ma, Indosinian), Jurassic-Cretaceous (195~70Ma, Yanshanian) and Paleogene-Neogene (65~10Ma, Himalayan). The Mo mineralization during Yanshanian period is the strongest one, in which about 76.69% Chinese total identified resources was formed. The second is the Himalayan period. According to spatial-temporal distribution characteristics of molybdenum deposits, the metallogenic regularity of molybdenum deposits was preliminarily summarized, and 41 Ⅲ-level molybdenum-forming belt were divided in mainland China. Metallogenic lineage of molybdenum deposits was also established. Spatial-temporal evolution of different types of molybdenum deposits, the relationship between Mo-mineralization and tectonic evolution have been discussed in this paper. On this basis, the authors think Mo is an effective tracer for recording the crustal evolution history of China.

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黄凡,王登红,王成辉,陈郑辉,袁忠信,刘新星.2014.中国钼矿资源特征及其成矿规律概要[J].地质学报,88(12):2296-2314.
HUANG Fan, WANG Denghong, WANG Chenghui, CHEN Zhenghui, YUAN Zhongxin, LIU Xinxing.2014. Resources Characteristics of Molybdenum Deposits and Their Regional Metallogeny in China[J]. Acta Geologica Sinica,88(12):2296-2314.

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  • 收稿日期:2014-08-30
  • 最后修改日期:2014-11-20
  • 录用日期:2014-12-03
  • 在线发布日期: 2014-12-09
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