四川盆地包界地区须家河组层序界面特征SEQUENCE BOUNDARY CHARACTERISTICS OF THE XUJIAHE FORMATION IN THE BAOJIE AREA OF SICHUAN BASIN
刘建锋,彭军,刘金库,熊超,何江,黄亮
摘要(Abstract):
层序地层学研究最关键的是对层序界面的识别。以四川盆地包界地区须家河组为例,综合应用野外露头、钻井岩芯、测井曲线、地震剖面等资料,识别出4种类型的层序界面,它们分别是:冲刷面、岩性岩相转换面、古风化壳、沉积结构转换面。并阐述了研究区层序界面在钻井岩芯、野外露头、测井曲线、地震剖面上的特征、识别标志和表现形式。这一研究成果对于正确划分研究区须家河组层序具有重要意义。
关键词(KeyWords): 层序界面;基准面旋回;冲刷面;古风化壳;须家河组;包界地区;四川盆地
基金项目(Foundation): 四川省重点项目基金(No.07ZA139)资助
作者(Author): 刘建锋,彭军,刘金库,熊超,何江,黄亮
DOI: 10.19839/j.cnki.dcxzz.2010.02.014
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