CAJ | 학술논문

收集前人研究成果,结合薄片鉴定、重矿物分析、稀土元素及地震等资料,对鄂尔多斯盆地延长组长7沉积期物源进行分析.结果表明：镇北地区延长组长7物源来自盆地西部和西南方向,其中西南物源为主要物源区,主要岩性为变质岩、中酸性岩浆岩;西部方向仅为沉积区提供白云岩等碳酸盐岩碎屑.
수집전인연구성과,결합박편감정、중광물분석、희토원소급지진등자료,대악이다사분지연장조장7침적기물원진행분석.결과표명：진북지구연장조장7물원래자분지서부화서남방향,기중서남물원위주요물원구,주요암성위변질암、중산성암장암;서부방향부위침적구제공백운암등탄산염암쇄설.
Based on previous research and the references concerning thin section identification,heavy mineral analysis,rare earth elements and seismic data,we give an analysis of Chang 7 sedimentary provenance in Ordos Basin.The result shows that Chang 7 source in Zhenbei area is from the west and southwest of the basin.The main provenance is the southwest area where the major lithology is that of metamorphic rocks and intermediate-acid magmatic rocks.The west area is only the sedimentary provenance where dolomite and other carbonate rock debris are found.