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鄂尔多斯盆地侏罗纪早中期甘陕古河的演化变迁
赵俊兴 陈洪德
摘 要:鄂尔多斯盆地侏罗纪早中期沉积前经过印支运动强烈的构造抬升,使上三叠统延长组遭受不同程度的剥蚀及河谷下切作用,形成了起伏不平的古地形.在侏罗纪早期发育了甘陕古河、庆西等5大古河,其中甘陕古河为主河道.在甘陕古河流域,从富县组到延安组各个时期具有不同的沉积与古地理特点,并一起反映了盆地的构造沉积演化历程.
关键词:古地貌;富县组;侏罗系;甘陕古;河延安组;鄂尔多斯盆地
分类号:TE111.1 文献标识码:A
文章编号:0253-9985(2006)02-0152-07
Evolution of Gan-Shaan paleochannel during Early and Middle Jurassic in Ordos basin
Zhao Junxing Chen Hongde
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基金项目:国家重点基础研究发展规划(973)项目(2003CB214601)
作者简介:赵俊兴(1973-),男,副研究员(博士后),沉积学与层序地层学
作者单位:赵俊兴(成都理工大学,沉积地质研究院,"油气藏地质及开发工程"国家重点实验室,四川,成都,610059)
陈洪德(成都理工大学,沉积地质研究院,"油气藏地质及开发工程"国家重点实验室,四川,成都,610059)
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