海洋地质前沿2025，Vol.41Issue(2)：21-29,9.DOI:10.16028/j.1009-2722.2024.056
东海陆架盆地丽水-椒江凹陷灵峰组海相烃源岩发育主控因素及分布特征
Controlling factors and distribution characteristics of marine source rocks in the Lingfeng Formation of the Lishui-Jiaojiang Sag in the East China Sea Shelf Basin
摘要
Abstract
Research on the Paleogene source rocks in the Lishui-Jiaojiang Sag(LJS)of the East China Sea Shelf Basin focuses on mainly the lacustrine source rocks of the Yueguifeng Formation,while the formation conditions and distribution patterns of high-quality marine source rocks of the Lingfeng Formation are not yet clear.Based on the comprehensive utilization of geological,geochemical,and paleontological data,and the analysis of organic geochemical characteristics of source rocks,we explored the main controlling factors for the development of mar-ine source rocks in the Lingfeng Formation of the LJS,and their formation patterns and distribution.Results show that the Lingfeng Formation in the LJS developed moderate to good grade terrestrial marine source rocks,and dif-ferent internal sags have strong heterogeneity.The development of hydrocarbon source rocks is comprehensively influenced by factors such as paleoproductivity,source input,and hydraulic conditions.From a planar perspective,the scale and quality of the source rocks in the LJS are closely related to the sedimentary environment of the delta-ic coastal shallow sea.The delta front and near-delta shallow marine facies have a large amount of terrigenous or-ganic matter input,and high abundance source rocks are developed in a weak oxidation weak reduction environ-ment,which is a favorable facies zone for the development of high-quality source rocks in the Lingfeng Forma-tion.关键词
丽水-椒江凹陷/灵峰组/海相烃源岩/主控因素/陆源有机质输入Key words
Lishui-Jiaojiang Sag/Lingfeng Formation/marine source rocks/main controlling factors/input of terrestrial organic matter分类
海洋科学引用本文复制引用
李林致,李婧婧,廖计华,郭刚,王欣,李峰..东海陆架盆地丽水-椒江凹陷灵峰组海相烃源岩发育主控因素及分布特征[J].海洋地质前沿,2025,41(2):21-29,9.基金项目
国家科技重大专项"中国近海富烃凹陷优选与有利勘探方向预测"(2016ZX05024-002) （2016ZX05024-002）
