东海陆架盆地海相中生界及其与邻近古海洋关系探讨
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摘要
多道反射地震、地磁、钻井资料表明,东海存在中生代地层。区域地层、古生物、古地理环境分析表明,东海陆架盆地南部赋存发育海相中生界的可能性。中生代期间,包括台西南、粤东、闽西在内的中国东南沿海一带存在一海相沉积环境,它可能是西太平洋、也可能是从南海东部或中部经过的中特提斯洋伸向陆地的一个支角。该支角北部可能抵达东海陆架盆地南部。
Multichannel seismic reflection, magnetism and drilling data show that there are Mesozoic strata in the East China Sea (ECS) shelf basin. Comprehensive analyses of regional strata, palaeontology and palaeoenvironment indicate that Mesozoic marine facies strata may have developed in the southern part of the ECS shelf basin. A marine depositional environment might exist in the southeastern coastal area of China during Mesozoic, including the sea area to the southwest of Taiwan, eastern Guangdong Province, and western Fujian Province. This coastal area might be a gulf extending into land from the western Pacific Ocean or from Tethys passing across eastern or central parts of the South China Sea. It could extend northward as far as the southern part of the ECS shelf basin.
Multichannel seismic reflection, magnetism and drilling data show that there are Mesozoic strata in the East China Sea (ECS) shelf basin. Comprehensive analyses of regional strata, palaeontology and palaeoenvironment indicate that Mesozoic marine facies strata may have developed in the southern part of the ECS shelf basin. A marine depositional environment might exist in the southeastern coastal area of China during Mesozoic, including the sea area to the southwest of Taiwan, eastern Guangdong Province, and western Fujian Province. This coastal area might be a gulf extending into land from the western Pacific Ocean or from Tethys passing across eastern or central parts of the South China Sea. It could extend northward as far as the southern part of the ECS shelf basin.
引文
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1)国家海洋局第二海洋研究所,2001,南海东部海区沉积结构及其形成机制研究。
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1)国家海洋局第二海洋研究所,2001,南海东部海区沉积结构及其形成机制研究。
[1]蔡乾忠.“残留特提斯”的猜想[J].地质科技,1998,(4):39—41.
[2]冯晓杰,张川燕,王春修,等.东海陆架和台西南盆地中生界及其油气勘探[J].中国海上油气(地质),2001,15(5):306—310.
[3]赵金海,唐建,薄玉玲.关于东海新生代盆地油气勘探的若干见解[J].中国海上油气(地质),2003,17(1):14—19.
[4]朱伟林,王国纯.中国近海前新生代油气勘探新领域探索[J].地学前缘,2000,7(3):215—226.
[5]王可德,王建平,徐国庆,等.东海陆架盆地西南部中生代地层的发现[J].地层学杂志,2000,24(2):129—131.
[6]王善书,等.沿海大陆架及毗邻海域油气区[M].北京:石油工业出版社,1992.
[7]刘光鼎主编.中国海区及邻域地质地球物理系列图[M].北京:地质出版社,1992.
[8]周蒂.台西南盆地和北港隆起的中生界及其沉积环境[J].热带海洋学报,2002,21(2):50—57.
[9]陈汉宗,孙珍,周蒂.华南中生代岩相变化及海相地层时空分布[J].热带海洋学报,2002,21(2):75—82.
[10]MartiniE.StandardTertiary andQuaternary calcareous nannoplankton zonation[A].In:FarinacciA (ed.).Pro ceedingsⅡ.PlanktonicConference2[C].Roma,1971.739—785.
[11]刘光鼎主编.中国海区及邻域地质地球物理场特征[M].北京:科学出版社,1992.
[12]金庆焕主编.南海地质与油气资源[M].北京:地质出版社,1989.
[13]KudrassH R,WiedickeM ,CepekH, et al.Mesozoic andCainozoic rocks dredged from theSouthChinaSea(ReedBank area) andSuluSea and their significance for plate tectonic reconstructions[J].Marine andPetroleumGeology,1986,(3):19—30.
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