| 滇西兰坪—思茅盆地构造转换机制及成矿响应 |
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| 引用本文：李以科,王安建.2017.滇西兰坪—思茅盆地构造转换机制及成矿响应[J].地球学报,38(s1):11-14. |
| DOI：10.3975/cagsb.2017.s1.04 |
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| 基金项目:由十一五科技支撑项目(编号: 2006BAB01A07);国家自然科学基金项目(编号: 41202057);中国地质调查局地质大调查项目(编号: 1212011220870; 12120114077201);中央公益性院所基金项目(编号: K1327) |
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| 中文摘要:三江腹心昌都—兰坪—思茅盆地, 吸收由印度板块挤入亚洲板块引起的变形, 处于印亚大陆北东向碰撞挤压的前沿地带和深部物质逃逸地带。完好记录了超级大陆从裂解→增生→碰撞的演化史和大陆动力学过程, 是中国大陆构造演化的缩影, 在全球构造演化中占举足轻重的地位。三江地区的特殊地质过程, 造就了丰富的金属矿产资源和油气资源。在中国紧缺的Cu、Co、Pb、Cr、Zn等矿种中, 西南地区的探明储量分别占全国同类矿种储量的40%、55.7%、29.8%、80%和30.8%, Au、PGE和REE的储量在全国也占据“半壁江山”, 是中国最重要的多金属矿集区之一。 |
| 中文关键词:构造转换 大陆裂谷 成矿作用 兰坪—思茅盆地 青藏高原东缘 特提斯演化 |
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| The Tectonic Transformation Mechanism and Metallogenic Response of the Lanping–Simao Basin |
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| Abstract:The Lanping–Simao basin in the center of San-jiang (Three Rivers) region, located in the southeast-ern margin of the Tibetan Plateau, is tectonically in the transition zone between the Gondwana and Eura-sia tectonic domains. It is also the frontier zone of northeastern extrusion of Indian plate towards the Eurasia plate as well as the escape zone for the deep material. Extensive metallogenesis occurred in the geology epochs due to the sophisticated geological process. Numerous ore deposits of diverse genetic types and metal speciation were formed in Cenozoic, making the Sanjiang one of the most productive and potential regions for metal resources in China. The Cu, Co, Pb, Cr, and Zn resource reserves accounts for 40%、55.7%、29.8%、80%and 30.8% of the total reserves, respectively. The Au, PGE and REE reserves were almost one half of that in china. |
| keywords:tectonic transformation continent rift metallogenic Lanping–Simao basin eastern Tibetan Plateau tethys evolution |
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