| 环特提斯盆地与环西太平洋盆地 |
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| 引用本文：冯福闿.1994.环特提斯盆地与环西太平洋盆地[J].地球学报,15(3,4):145-158. |
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| 中文摘要:与特提斯和环太平洋２个巨型构造带有成因联系的两类中新生代盆地──环特提斯盆地、环太平洋盆地是全球油气矿产资源最富集的地区。这两大体系恰好在中国境内相汇合。中国境内绝大多数中新生代盆地均可归人这两大体系之内。环特提斯盆地是在地壳压缩背景下，受造山带挤压推覆作用，地壳发生挠曲沉降形成。低－中热的前陆盆地是最有代表性的盆地类型。烃源岩演化慢，生油门限深度大，含油层系时代偏老、深度偏深。环（西）太平洋盆地是在地壳伸展减薄、热作用活动的背景下，发生初始沉降和热沉降而形成的。热的裂谷盆地是具有代表性的盆地类型。烃源岩演化速度较快，生油门限深度浅，含油层系时代较新、深度较浅。 |
| 中文关键词:环特提斯盆地，环太平洋盆地 |
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| Circum-Tethys and Circum-Pacific Basins |
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| Abstract:Mesozoic circum-Tethyb and circum-Pacific basins,which are genetically related to theTethys and circum-Pacific tectonic zones. are the regions with most abundant petroleum and natural gas of the world.These two tectonic System intersect in China.,most of Mesozoicbasins in China are belonging to the two systems.Circum-Tethys basins were developed against a background of crustal compression. They are the result of compressional thrusting and the yielding sinking of the crust.Warm-moderately hot foreland basins are the most representative ones. Hydrocarbon source rockevolved slowly, threshold depth of oil-gernaration is great,petroliferous beds have relatively anolder age and a greater depth. Circum-(West)Pacific basins were formed against a background of extensional thinningof the crust and frequent geothrmal activities. They are the result of initial sinking andgeothermal sinking. Hot rift basins are the most representative ones. Hydrocarbon source rock evolved rapidly,threshold depth of oil- generation is small,petroliferous beds have relatively ayounger age and a smaller depth. |
| keywords:circum-Therys circum- pacific basin |
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