【摘 要】
：
四川盆地北部震旦系—下寒武统是继安岳气田发现和绵阳—长宁裂陷提出之后备受关注的另一重点勘探领域,但对其沉积-构造格局的认识存在严重分歧。文中基于露头剖面、地震、钻井和地球化学分析资料并结合前人研究成果,提出四川盆地北缘震旦纪—早寒武世期间存在隆-坳并存的格局。四川盆地北缘震旦系—下寒武统厚度、岩相、地震反射和地球化学等指标的详细分析表明:(1)沉积-构造格局表现为隆-坳相间的特点,即自西向东依次为
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四川盆地北部震旦系—下寒武统是继安岳气田发现和绵阳—长宁裂陷提出之后备受关注的另一重点勘探领域,但对其沉积-构造格局的认识存在严重分歧。文中基于露头剖面、地震、钻井和地球化学分析资料并结合前人研究成果,提出四川盆地北缘震旦纪—早寒武世期间存在隆-坳并存的格局。四川盆地北缘震旦系—下寒武统厚度、岩相、地震反射和地球化学等指标的详细分析表明:(1)沉积-构造格局表现为隆-坳相间的特点,即自西向东依次为绵阳—长宁裂陷→汉南—米仓山隆起→万源—通江裂-坳陷→达州—开江隆起→城口—开县裂-坳陷→东安—巫溪隆起
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