Characteristics of Source Rocks from Carboniferous-Permian in Songliao Basin and Its Peripheral Area, Northeastern China

详细信息   

• 责任者：Zhang Yongsheng (Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Wang Yanbin
• 刊名：Geological Bulletin of China
• 出版年：2011
• 卷期：30(2-3)
• 关键词：烃源岩 ; source rocks ; 松辽平原 ; Songliao Plain
• 页码：p.214-220
• 图表：3 illus., 1 plate, 2 tables, 11 refs.
• 分类号：1003
• issnNo：ISSN1671-2552
• isbnNo：CN11-4648/P

摘要

By the study in the field and laboratory for about 3 years, this paper indicates that there is no regional metamorphism in the Upper Paleozoic of the study area except for the dynamitic contact metamorphose and thermal metamorphism with various degree in some areas. The preliminary investigation indicates that it exists four source rock layers from Carboniferous to Permian in the area, from upper to lower including： Upper Permian （Linxi Formation, Suohin Formation）, Middle Permian （Zhesi Formation,Wujiatun Formation）, Upper Carboniferous-Lower Permian （Benbatu Formation, Amushan Formation）, Lower Carboniferous （Baijiadian Formation, Hongshuiquan Formation）. Among them, the Upper Permian （Linxi Formation） and Middle Permian （Zhesi Formation） spread widely in the area, the max monolayer thickness of the black muddy rock from which gets to several hundred meters and the accumulated thickness from several hundred meters to several kilometers. The main organic geochemical indices （the organic carbonate, the maturity and the type of kerogen） reflect the source rocks from the two formations get the rank of middle or good.