| 华北石炭—二叠系古地理沉积环境的初步分析 |
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| 作者单位： | Wuhan College of Geology，Wuhan 430074 |
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| 摘 要： | 华北石炭—二叠系沉积发育于平缓地台构造背景上。古地理环境分析表明:太原组为潮坪、港湾三角洲、海湾、滨海沼泽及浅海沉积:山西组为潮坪、港湾三角洲、滨海沼泽,分流平原及分流河道沉积;石盒子组主要为河流冲积平原及河道间沼泽沉积。华北的南北尚有差异。华北已发现石炭—二叠纪气田及气显示,将成为找油气的新领域。
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| 关 键 词： | 华北 石炭—二叠系 古地理 相 沉积环境分析 沉积体系 沉积模式 |
A PRELIMINARY ANALYSIS OF PALEOGEOGRAPHIC ENVIRONMENTS IN CARBONIFEROUS-PERMIAN SYSTEM IN NORTHERN CHINA |
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| Authors: | Wang Defa Zheng Junraao Deng Hongwen |
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| Abstract: | Sedimentary facies analysis suggests that the Carboniferous-Permian System in northern China is deposited on a gentle platform tectonic setting and is inteipreted as a regressive sequence. The Taiyuan Formation is recognized as deposits of tidalflat, baydelta, estuary, coastal swamp and shallow sea. Shanxi Formation is regarded as deposits of tidalflat, baydelta, coastal swamp, distributary channel and distributary plain. Shihezi Formation is considered to have formed in the area of fluvial plain and interchannel swamp. There,however,is different deposition from north to south in northern China. Finding some gas shows should regarded as a possible newfield for prospecting natural gas. |
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| Keywords: | northern China Carboniferous-Permian System Paleogeography facies sedimentary environment analysis sedimentary system sedimentary model |
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