南祁连盆地三叠纪地层及石油地质特征  

Triassic stratigraphic provinces of the southern Qilian basin and their petro geological features

作　　者：符俊辉[1] 周立发[1] 

机构地区：[1]西北大学地质系,西安710069

出　　处：《西北地质科学》2000年第2期64-72,共9页Northwest Geoscience

摘　　要：在完成南祁连盆地 3条北东向直线距离为 4 0 1.5km五万分之一条带地质图的基础上 ,重新厘定了区内三叠系的划分 ,明确了各地层单位的含意 ,并建立了区内哈拉湖地层区、下日哈地层区和北部地层区及其与邻区三叠系的对比关系。认为中三叠统大加连组海相碳酸盐岩和上三叠统尕勒德寺组泥质岩为该盆地重要的烃源岩系 ,并讨论它在盆地内不同坳陷的分布规律。Triassic in Southern Qilian basin has been divided into 3 stratigraphic districts with the study of large quantity of geologic sections mainly based on paleotectonic setting, basement characters, tectonic deformation, magmatic activity, sedimentary formation, paleao biota attributes, as well as extent of stratigraphy development and contact relation; upon which, also given is a discussion on the environmental framework of the original Carboniferous Jurassic in Southern Qilian basin and Petro Geological Features

关 键 词：三叠系 石油地质特征 地层 烃源岩 盆地 坳陷 

分 类 号：P618.130.2[天文地球—矿床学] P534.51[天文地球—地质学]