论陆相层序地层学理论体系及其研究思路

Theoretical System and Technical System on Terrestical Sequence Stratigraphy

起源于被动大陆边缘盆地的经典层序地层学已被普遍应用于我国广泛分布着的中新生代陆相盆地中 ,但陆相层序地层学尚存在许多问题有待于探索。陆相层序地层学具有迥异于经典层序地层学的研究思路和理论体系。陆相层序地层学应采取宏观控制微观、微观反过来补充或印证宏观的思路 ,以钻井、测井资料作为点 ,连井剖面、地震剖面作为线 ,由多条线纵横交叉 ,从三维空间控制整个研究区块。通过对陆相层序及其体系域的剖析 ,探讨陆相层序地层几何学特征及动力学机制 ,建立一个较为完善的陆相层序地层学模式 ,倡导一套适用于大多数陆相盆地的陆相层序地层学术语体系 。

The classical sequence stratigraphy originating from the Passive continential margin basin has been universally applied to the Mesozoic-Cenozoic ter restical basins which are widespreed in China, but there appear some problems need to be solved, on terrestical sequence stratigraphy, terrestical se quence stratigraphy is totally different from the classical stratigraphy in theoretical system and technical thinking. The thought used in terrestical sequence stratigraphy is that macrocosm controls microcosm and microcosm complements/verifies macrocosm in verse, and the whole researched area is controlled by three-dimension with using drilling and logging data as points and using con necting well sections and seismic profiles as lines to constitute a crisscross network. By analyzing ter restical sequence and its system tract, the terretical sequence's geometrical characteristics and its dy namic mechanism are discussed, and a terrestical se quence stratigraphy model is more perfect, and a set of technical terms suited for the most terrestical basins are formed to enrich and develop the theory of sequence stratigraphy.