【摘要】 以沉积相特征为基础,建立了华北石炭、二叠纪沉积模式。共划分出4个相带,12个相。更多还原

【Abstract】 The Carboniferous and Permian System in North China Platform and itsadjacent area can be divided into 4 facies zones, 12 facies and 8 subfacies.Within the area, lagoon facies, carbinate paraplatform facics and deltaic facieswell developed in the Carboniferous, while alluvial facies, deltaic distribu-tary plain facies and lacustrine faciee well developed in the Permian. Paleo-geographically speaking, the platform was surrounded by an old land, anticlises(underwater uplifts) and chain islands respectively in north, west and south.The distribution of the facies were controlled predominently by Yinchan oldland, and the peleoclimate changed from warm and moisture to hot and dry.更多还原