| 江汉多旋回叠合盆地形成及沉积充填响应 |
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| 引用本文： | 王步娥.江汉多旋回叠合盆地形成及沉积充填响应[J].成都理工大学学报(自然科学版),2009,36(3). |
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| 作者姓名： | 王步娥 |
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| 作者单位： | 成都理工大学沉积地质研究院,成都,610059;中国石油化工股份有限公司科技开发部,北京,100728 |
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| 基金项目： | 国土资源部全国油气资源战略选区调查与评价项目 |
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| 摘 要： | 南华纪以来江汉叠合盆地形成过程及其沉积充填特征是油气勘探选区评价必须解决的基本问题.基于本地区这一时期一系列成盆事件和残留的沉积地质体的综合分析表明,江汉叠合盆地形成与四个阶段的构造演化相关:南华纪-志留纪板块裂解-漂移-汇聚阶段;泥盆纪至中三叠世裂谷作用远端效应及勉略有限洋盆伸展-消减关闭阶段;晚三叠世-侏罗纪秦岭-大别造山带逆冲推覆挤压阶段;白垩纪-第四纪西太平洋板块与印度板块俯冲远端效应影响的断坳旋回阶段.第一构造阶段伸展期盆地以陆源碎屑沉积充填为主,热沉降期以台地发展为特征,晚期挤压盆地以陆源碎屑岩沉积充填为主;第二构造阶段伸展期沉积充填体横向岩相分异明显,而热沉降期台地碳酸盐发育;第三构造阶段盆地以陆相近补偿充填为特征;第四构造阶段盆地范围缩小,多个断坳幕导致其具多变的沉积-沉降中心,新近纪发生挤压后的拗陷沉降,盆地以补偿沉积充填为特点.
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| 关 键 词： | 构造演化 叠合盆地 沉积响应 江汉平原 |
The formation mechanism and filling response of the Jianghan multi-cycle superimposed basin |
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| WANG Bu-e.The formation mechanism and filling response of the Jianghan multi-cycle superimposed basin[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2009,36(3). |
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| Authors: | WANG Bu-e |
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| Institution: | WANG Bu-e1,21.Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,China,2.Oilfield Division Science & Technology Development Department of SINOPEC,Beijing 100728 |
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| Abstract: | The formation of the Jianghan superimposed basin is related to four stages of tectonic evolution: the plate splitting-drift-convergence during Nanhuaian-Silurian periods;the distal end effect of riftogenesis and extension-subduction shut down stage during Devonian-Middle Triassic periods;the overthrusting and compaction stage of Qinling-Dabie orogenic belt during Late Triassic-Jurassic;the fault sag cycle stage influenced by the distal end effect of the West Pacific Ocean Plate and India Plate subduction du... |
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| Keywords: | tectonic evolution superimposed basin sedimentary response Jianghan plain |
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