Geochemical characteristics and families of the Paleozoic oil seepage and solid bitumen in the Southern Guizhou Depression,SW China  

作　　者：Ningxi Li Guangli Wang Bo Gao Xianqing Li Shengbao Shi Tieguan Wang 

机构地区：[1]State Key Laboratory of Petroleum Resources and Prospecting, and Department of Organic Geochemistry and Environmental Science, College of Geosciences, China University of Petroleum [2]School of Energy Resources, China University of Geosciences [3]Exploration and Development Research Institute, Sinopec [4]China University of Mining & Technology

出　　处：《Chinese Journal Of Geochemistry》2015年第1期85-92,共8页中国地球化学学报

基　　金：funded by the State Key Project of Petroleum (2008ZX05005-001009HZ);the National Natural Science Foundation of China (41172126);the State Key Laboratory of Petroleum Resources and Prospecting (PRP2010-01);the Science Foundation of China University of Petroleum (LLYJ-2011-05 and KYJJ-2012-01-01)

摘　　要：Fifteen oil seepage and solid bitumen samples in the Southern Guizhou Depression were analyzed with GC–MS. Characteristics of molecular markers and carbon isotopes are discussed systemically. The results showed that the oil seepage and solid bitumen samples in the Southern Guizhou Depression could be divided into two families: Ordovician and Siluric samples, and Permian samples. The two families are different in alkanes distribution, biomarkers, aromatic hydrocarbon composition,and stable carbon isotopes; differences mainly caused by source rock variation.Fifteen oil seepage and solid bitumen samples in the Southern Guizhou Depression were analyzed with GC-MS. Characteristics of molecular markers and carbon isotopes are discussed systemically. The results showed that the oil seepage and solid bitumen samples in the Southern Guizhou Depression could be divided into two families： Ordovician and Siluric samples, and Permian samples. The two families are different in alkanes distribution, biomarkers, aromatic hydrocarbon composition, and stable carbon isotopes; differences mainly caused by source rock variation.

关 键 词：固体沥青 贵州南部 油渗漏 地球化学 中国西南 家庭 古生界 特征和 

分 类 号：P618.13[天文地球—矿床学]