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关于开江-梁平海槽的认识
马永生 牟传龙 谭钦银 余谦
摘 要:前人认为开江-梁平地区在晚二叠世长兴期-早三叠世印支早期为海槽沉积区,并称为"开江-梁平海槽".由于对该区沉积格局的认识和确定直接涉及川东北地区的油气勘探部署.因此,在沉积学研究的基础上,利用钻井、地震资料获得的新成果,从区域构造背景、海槽的概念和沉积等角度,进一步系统阐述了开江-梁平地区长兴期-早三叠世早期不是海槽沉积环境,而是碳酸盐台地中水体相对较深的台棚环境,且以沉积泥晶灰岩为主,并有高能滩沉积.
关键词:海槽;台棚;沉积格局;开江-梁平;四川盆地
分类号:TE111.2 文献标识码:A
文章编号:0253-9985(2006)03-0326-06
A discussion on Kaijiang-Liangping ocean trough
Ma Yongsheng Mou Chuanlong Tan Qinyin Yu Qian
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基金项目:国家重点基础研究发展规划(973)项目(2005CB422100)
作者简介:马永生,男(1961-),教授级高级工程师、博上,沉积与石油地质
作者单位:马永生(中国石油化工股份有限公司,南方勘探开发分公司,云南,昆明,650200)
牟传龙(成都地质矿产研究所,四川,成都,610082)
谭钦银(成都地质矿产研究所,四川,成都,610082)
余谦(成都地质矿产研究所,四川,成都,610082)
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[1]中国石油化工股份有限公司南方勘探开发分公司.四川盆地东北部二叠-侏罗系沉积与层序地层研究.2003
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