合肥盆地中—新生界烃源岩地球化学与构造背景分析

GEOCHEMICAL AND TECTONIC ANALYSIS OF THE MESOZOIC AND CENOZOIC HYDROCARBON SOURCE ROCKS IN THE HEFEI BASIN

曹高社 柳忠泉 刘德良 周松兴 高一军

CAO Gao-she LIU Zhong-quan LIU De-liang ZHOU Song-xing GAO Yi-jun

中国石化 胜利油田有限公司 地质科学研究院, 山东东营 257015 2. 郑州大学 地球科学中心, 河南 郑州 450053 3. 中国科学技术大学 地球与空间学院, 安徽 合肥 230026 4. 江苏石油勘探局 安徽勘探处, 安徽 合肥 230026

Institute of Geological Science, Shengli Oilfield, SINOPEC, Dongying, Shandong 257015, China 2. Geoscience Centre, Zhengzhou University, Zhengzhou, Henan 450053, China 3. School of Earth and Space Science, University of Science and Technology of China, Hefei, Anhui 230026, China 4. Anhui Division of Petroleum Exploration, Jiangsu Bureau of Petroleum Exploration, Hefei, Anhui 230026, China

中—新生代合肥盆地受EW向特提斯构造和NNE向滨西太平洋构造等多元构造动力的控制,具有成盆期次多、构造运动频繁、沉降量和伸展量小、卷入构造层次浅等特点。这些特点对中—新生界烃源岩的发育及其有机质的转化是不利的。而古生界应为今后勘探的重点。

Controlled by multivariate dynamics such as the EW-oriented Tethys tectonic zone and the NNE-oriented West Pacific Ocean border tectonic zone,the Hefei Basin has the following characteristics:multi-period of basin formation,frequent tectonic movement,small scale of sedimentation and extension,and involving superficial tectonic layers only.These features are unfavorable to the formation of Mesozoic and Cenozoic hydrocarbon source rocks and the inversion of organic matter in Hefei Basin.However,the (Paleozoic) should be the focal point for the future exploration.

国家自然科学基金(40172072);国家重点基础研究(2001CB209133).

https://doi.org/10.11781/sysydz200403287