摘要
以分析化验资料为基础,对珠江口盆地珠江组15口井71个样品的微量元素进行统计分析,总结沉积环境或沉积相带与微量元素含量之间的对应关系。研究表明:①对沉积环境较为敏感的微量元素有Sr、Ba、V、Cr、U、Th、Ce等;②砂岩样品微量元素分析显示古珠江三角洲在珠江组沉积时期主要为海陆过渡环境,氧份含量比较充足,且有充足的陆源碎屑物质供给。由三角洲内前缘到陆棚V、Cr、Sr、U、Tu、Ce微量元素的含量不断递增,Ba和Sr/Ba有减小趋势。泥岩样品结果相同;③不同沉积亚相微量元素含量具有一定的区分度,利用微量元素判别沉积环境具有一定的可行性。
Based on the analysis and test data,analyze the trace element of71samples of15wells from Pearl River MouthBasin.Summarize the relationship between sedimentary environment and sedimentary facies zone and trace element content.Resultsshow that:①trace elements sensitive to sedimentary environment are strontium,barium,vanadium,chromium,uranium,thorium and cerium;②trace elements analysis in the sandstone samples shows that the depositional environment of the Pearl RiverDelta in the ancient Pearl River Delta is mainly the sea land transitional environment,the oxygen content is abundant,and there is sufficient supply ofterrigenous clastic material,mudstone samples are the same;③trace elements content in different sedimentary subface has a certain degree of discrimination.It is feasible to distinguish sedimentary environment with trace elements.
作者
袁才
张文珠
温华华
徐徽
刘杰
张志伟
易雪斐
Yuan Cai;Zhang Wen-zhu;Wen Hua-hua;Xu Hui;Liu Jie;Zhang Zhi-wei;Yi Xue-fei(Key Laboratory of Oil and Gas Resources and Exploration,School of Geosciences,Yangtze University,Wuhan,Hubei 430100,China)
出处
《石化技术》
CAS
2017年第2期91-92,共2页
Petrochemical Industry Technology
基金
国家"十三五"重大专项(编号:2016ZX05024-004)
关键词
微量元素
沉积环境
珠江组
珠江口盆地
trace element
sedimentary environment
Zhujiang Formation
Pearl River Mouth Basin
