山东中新生代盆地基本特征及演化过程

山东省境内发育有中新生代盆地38处,分布于鲁西、鲁东、鲁北三区.以其地层结构、发育历史分为侏罗纪、白垩纪、古近纪、新近纪4个成盆阶段6个世代盆地.按照盆地的形态特征和成因特点分成单断、地堑、拗陷三种类型.它们同受以沂沭断裂为主的NNE向左行扭断裂或其派生断裂的控制,在间息性运动过程中发生多旋回沉积作用.

Basic Characteristics and Evolution History of Meso-cenozoic Basins in Shandong Province

Meso-cenozoic basins are found in Shandong province, which distribute in west, east and north area. According to the strata structures, the developing history can be divided into four basin-forming periods as Jurassic, Cretaceous, Neo-tertiary and Palaeo-tertiary, and six generation basins. According to morphological and genetic features, the basins can be divided into three types: single fault, fault trough and sag. They are controlled by left-handed faults with the trend of NNE and their derived faults, which Yishu fault is the major one, while multicyclic sedimentary occurred in intermittent movement period.