华北地区寒武、奥陶系碳酸盐岩有机质丰度及生油岩研究

A STUDY OF THE ORGANIC ABUNDANCE OF CAMBRIAN-ORDOVICIAN CARBONATE ROCKS IN NORTH CHINA

作者以丰富的资料对华北地区寒武、奥陶系碳酸盐的沉积环境、成岩作用以及有机质演化等进行了系统的研究。提出前缘斜坡相、开阔海相、局限海相为有利生油岩相;泥晶灰岩、生物灰岩、白云质灰岩为主要生油岩石组合;寒武系辛集组上段、中奥陶下马家沟组、上马家沟组、峰峰组为主要生油岩层。

Based on abundant data, the author systematically discusses the sedimentary environment , diagenesis, and organic evolution of Cambrian -Ordovician carbonate rocks in north China, suggesting that foreslope, open-marine and limited marine facies are favourable fa-cies of source rocks, with micritic limestones, biolithite and dolomitic limestone as main source rock assemblage, and the upper Xinji Formation of Cambrian, lower Majia Gou and Fengfeng Formations of middle Ordovician as major source rocks.