海相沉积层序的级别及形成机制

以黔南独山地区石炭纪层序地层学研究成果为佐证，分析了不同级别全球海平面变化旋回形成机制和构成的沉积层序，相同级别的全球海平面变化旋回在大地构造环境相似的不同板块被动大陆边缘，会构成级别和数量相同、沉积记录相似的沉积层序。在大地构造背景不同（古地理位置、沉积物供给等方面差异）的板块之间（板块内部），会构成沉积层序数量相同、但沉积层序内容不同，或者沉积层序数量和内容都不同的沉积层序。前两种情形是沉积记录全球同时性的客观反映。

HIERARCHY AND FORMING MECHANISM OF SEQUENCE IN MARINE DEPOSITIONAL SEQUENCE

Based on the achievement of the carboniferous sequence stratigraphy in Dushan area of southern Guizhou province, the forming mechanism and deposition sequence of different hierarchy eustacy are analyzed. The same order eustacy can cause the same hierarchy deposition sequence and the similar depositional record in the passive continental margin of different platform with the similar tectonic background, and bring about the same number depositional sequence and different depositional record, or different all of number and record depositional sequence in different platform ( or the same platform ) with the different tectonic background. The facts of the same number of depositional sequence and the same ( or similarity )depositional record are objective reflections of the global synchronous deposit.