摘要
墨西哥湾盆地是一个典型的中生代—新生代裂谷盆地,形成于北美克拉通南部边缘,大部分时间处于持续而稳定的沉降作用过程中。自晚侏罗世以来持续稳定的沉降形成了中生代富有机质的缺氧海相碳酸盐岩、黑色钙质页岩和泥质石灰岩等优质烃源岩,以及新生界以陆源碎屑为主的巨厚沉积物,存在大量的潜在烃源岩,加之良好的生储盖组合,从而形成了墨西哥湾盆地丰富的油气聚集。
The Gulf of Mexico Basin was a typical rifting basin of Mesozoic-Cenozoic, formed in the southern margin of North American craton,at most of the time stayed in the condition of lasting and stable sedimetation. Since late Jurassic, through stable and continuous sedimentation, it has formed high quality Mesozoic source rocks with the abundant organic-rich anoxic carbonate, black calcareous shales and shaly limestones,and it mainly deposited terrigenous clastic sediments of giant thickness in Cenozoic which could be the potential source rocks. Additional with good relations among the sourcereservior-seal rocks,rich hydrocarbon accumulations formed in the basin undoutedly.
出处
《海洋地质动态》
北大核心
2010年第3期22-27,共6页
Marine Geology Letters
基金
国家专项(GT-YQ-QQ-2008)"墨西哥湾盆地油气地质综合研究与区域优选"(GT-YQ-QQ-2008-6-20)
关键词
持续沉降
烃源岩
油气区
墨西哥湾
continuous sedimetation
source rock
oil and gas fields
Gulf of Mexico
