地质科学2012,Vol.47Issue(1):154-168,15.
南华北东部徐淮地区新元古界生烃潜力分析
Hydrocarbon-generating potentials of the Neoproterozoic in Xuhuai area, the east part of southern North China
摘要
Abstract
Based on the synthetical analyses of stratigraphic characters, organic geochemical indexes and lithofacies paleogeography, the probability of the Neoproterozoic source rocks and primary petroleum reservoirs in Xuhuai area was discussed. Xuhuai area locates in the east part of southern North China and is divided into Huainan and Huaibei district by Bengbu-Jieshou ancient uplift. Lower mudstones of Liulaobei Formation and upper carbonates of Jiayuan to Weiji Formation reached just the standard of hydrocarbon source rocks, and the latter could subdivided into Jiayuan to Jiudingshan Formation and Zhangqu to Weiji Formation. The Neoproterozoic source rocks contain low abundance of organic matter and I -type kerogen with the mature to over-mature stages of thermal evolution. The hydrocarbon source quality of Liulaobei Formation, Zhangqu to Weiji Formation and Jiayuan to Jiudingshan Formation become worse in turn, and the Huaibei district was better than the Huainan district. The surrounding area of Bengbu-Jieshou ancient uplift with lower thermal evolution is favorable prospect areas.关键词
南华北/新元古界/烃源岩/徐淮地区/有机质丰度Key words
Southern North China/ Neoproterozoic/ Source rock/ Xuhuai area/Abundance of organic matter分类
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李振生,刘德良,吴小奇,王广利,王铁冠..南华北东部徐淮地区新元古界生烃潜力分析[J].地质科学,2012,47(1):154-168,15.基金项目
国家自然科学基金项目(编号:40702021,40830426, 40972134, 41172117)资助. (编号:40702021,40830426, 40972134, 41172117)