| 徐克勤,程海.中国钨矿形成的大地构造背景[J].地质找矿论丛,1987,(3):1-7 |
| 中国钨矿形成的大地构造背景 |
| TECTONIC ENVIRONMENT FOR THE FORMATION OF TUNGSTEN DEPOSITS IN CHINA |
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| DOI：10.6053/j.issn.1001-1412.1987.3. 001 |
| 中文关键词: 中国钨矿床 构造背景 |
| 英文关键词: |
| 基金项目: |
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| 中文摘要: |
| 世界钨矿的主要分布在受俯冲作影响的环太平洋广义的大陆边缘,以及欧亚大陆内部广义古大陆边缘碰撞带.中国钨矿床从时间和空间分布,形成的大地构造背景皆与世界钨矿相似,是世界钨矿成矿带的重要组成部分. |
| 英文摘要: |
| According to the time and spatial distribution of tungsten deposits, the tectonic environments for the formation of tungsten deposits are discussed in this paper. The tungsten deposits in China are mainly distributed in the eastern, especially, the southeastern continental margin zone (in the broad sense) of China; and they are also found in the collision zones of the paleo-continental margins. The tungsten deposits in China are related mainly to the block orogenic movements caused by adjacent collision or subduction (as in Southeast China), and to the deep-seated fracture activities caused by further compression after collision (as in East Qinling mountain).All tungsten-bearing granitoids have been derived mainly from continental crust. A well-developed continental crust is a prerequisite for the formation of tungsten deposits, and preliminary concentration of tungsten in some horizons of the basement strata is an important controlling factor for tungsten deposits. |
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