成都理工大学学报（自然科学版）2012，Vol.39Issue(2)：215-222,8.
湘中拗陷海相页岩层系岩相古地理特征
Lithofacies-paleogeography characteristics of the marine shale series of strata in the Xiangzhong depression, Hunan, China
摘要
Abstract
The Xiangzhong depression is a late Paleozoic sag region developing based on the Lower Paleozoic epimetarnorphic rock series. The marine shale series of beds are abundent in organic matter and provides basic geological conditions for forming shale-gas reservoirs. Under the guidance of modern sedimentology and sequence stratigraphy and combined with the regional tectonic setting of the Xiangzhong depression, this study analyzes the depositional environment and lithofacies-paleogeography of the shale series of strata, ascertains the developed shale intervals rich in organic matter and suggests that the shale in the Xiangzhong depression mainly develops in Lower Carboniferous, Middle-Upper Devonian and Upper Permian. The shale is distributed on the top of the transgressive system tract and on the bottom of the highstand system tract and the better shale is laterally relative to the development and distribution of trough rock platform facies. The most advantageous sedimentary facies for the development of the shale are the platform basin facies and seamarsh facies.关键词
湘中拗陷/页岩气/海相页岩层系/岩相古地理Key words
Xiangzhong depression/ shale gas/ marine shale series of strata/ lithofacies-paleogeography分类
能源科技引用本文复制引用
敬乐,潘继平,徐国盛,马若龙,袁海锋,罗小平,吴昌荣..湘中拗陷海相页岩层系岩相古地理特征[J].成都理工大学学报（自然科学版）,2012,39(2):215-222,8.基金项目
国土资源部全国油气资源战略选区调查与评价专项(2009GYXQ15) （2009GYXQ15）
