摘要
为了确定鄂尔多斯盆地富县地区延长组长8油层组和长6油层组物源,结合区域地质资料,通过周围露头古流向测定,轻矿物组分、重矿物组分、稀土元素配分分析研究,表明富县地区三叠系延长组长8与长6油层组物源主要来自于北东向,重矿物分析和稀土元素配分分析推测物源母岩主要是阴山古陆的麻粒岩—孔兹岩,南物源影响至韩城黄陵一线,但未至富县。
In order to determine the provenance of Chang-8 and Chang-6 in Fuxian area of Ordos basin, combined with regional geological data, this paper measured the paleoeurrent of surrounding outcrop and conducted researches on light minerals compo- nents, heavy minerals components and REE distribution pattern. The results showed that the provenance of Chang-8 and Chang-6 in Yanchang formation of Triassic system in Fuxian area came from the northeast of Ordos basin. Analysis of heavy minerals and REE distribution pattern showed that provenance parent-rock were granulites and khondalite of the ancient land named Yinshan. And the influence of the southern provenance reached Hancheng-Huangling but did not reach Fuxian area.
出处
《油气藏评价与开发》
2012年第5期11-14,共4页
Petroleum Reservoir Evaluation and Development
关键词
鄂尔多斯盆地
富县
物源分析
古流向
轻矿物
重矿物
Ordos basin, Fuxian, provenance analysis, paleocurrent, light minerals, heavy minerals
