油气藏评价与开发
油氣藏評價與開髮
유기장평개여개발
2012年
5期
11-14
,共4页
鄂尔多斯盆地%富县%物源分析%古流向%轻矿物%重矿物
鄂爾多斯盆地%富縣%物源分析%古流嚮%輕礦物%重礦物
악이다사분지%부현%물원분석%고류향%경광물%중광물
Ordos basin%Fuxian%provenance analysis%paleocurrent%light minerals%heavy minerals
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。
為瞭確定鄂爾多斯盆地富縣地區延長組長8油層組和長6油層組物源，結閤區域地質資料，通過週圍露頭古流嚮測定，輕礦物組分、重礦物組分、稀土元素配分分析研究，錶明富縣地區三疊繫延長組長8與長6油層組物源主要來自于北東嚮，重礦物分析和稀土元素配分分析推測物源母巖主要是陰山古陸的痳粒巖-孔玆巖，南物源影響至韓城黃陵一線，但未至富縣。
위료학정악이다사분지부현지구연장조장8유층조화장6유층조물원，결합구역지질자료，통과주위로두고류향측정，경광물조분、중광물조분、희토원소배분분석연구，표명부현지구삼첩계연장조장8여장6유층조물원주요래자우북동향，중광물분석화희토원소배분분석추측물원모암주요시음산고륙적마립암-공자암，남물원영향지한성황릉일선，단미지부현。
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 paleocurrent 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.
