| 中国东部燕山期火山-岩浆大爆发 |
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| 引用本文：.1999.Strong Yanshanian volcanic-magmatic explosion in east China[J].Mineral Deposits,18(4):316~322 |
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| 基金项目:国土资源部重大基础研究项目(9501121) |
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| 中文摘要:中国东部燕山期存在惊天动地的火山．岩浆大爆发，形成了7条火山岩带，8种岩石系列和组合，构成了四大火成岩省。在近20×l06 a内有数百万立方千米的高温岩浆喷出地表，喷发速率约为0.03 km3/a．对全球气候环境变化和生物灭绝产生巨大影响。火山-岩浆大爆发与成矿作用大集中是壳幔物质和能量大循环的必然结果。深部地幔柱对岩石圈的突变机制极大地控制了燕山期地质生态的大变革。 |
| 中文关键词:火山-岩浆大爆发 地质生态 燕山期 中国东部 |
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| Strong Yanshanian volcanic-magmatic explosion in east China |
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| Abstract:The extremely strong Yanshanian volcanic-magmatic explosion in East China formed seven volcanic belts and eight rock series or associations which constitute four igneous provinces. In a period of nearly 20×l06 a, millions of cubic kilometers of high-temperature magmas were erupted to the surface, which exerted notable impact on the global climatic environment and the extinction of living beings. The strong volcanic-magmatic explosion and the concentration of mineralization were inevitable outcomes of the great cycle of the crust-mantle materials and energies. The relationship of the deep mantle plume to the sudden change mechanism of lithosphere and the great change of Yanshanian ecology is a subject which deserves thorough study and investigation in future . |
| keywords:strong volcanic/ magmatic explosion, geological ecology, Yanshanian, East China |
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