鄂尔多斯盆地环县地区上三叠统长6_3物源分析及沉积体系  

Provenances Analysis and Depositional Systems of upper Triassic Chang 63 Sand Set in Huanxian Region in Ordos Basin

作　　者：邵远[1] 文佳涛[1] 程文[1] 邱安南[1] 郭莉[1] 

机构地区：[1]长江大学地球科学学院,荆州434023

出　　处：《科学技术与工程》2012年第33期8807-8814,共8页Science Technology and Engineering

摘　　要：通过120块岩石薄片的鉴定分析,对60个实测重矿物资料的整理和分析,对40个粒度分析资料的统计和研究,同时考虑区域沉积相格局,并结合前人有关资料,对鄂尔多斯盆地环县地区上三叠统延长组长63沉积期进行了物源分析。结果表明,环县地区的物源主要来源于研究区的西方,其次来源于研究区的东北方,少量来源于北方。结合区域地质特征分析,建立了研究区长63的沉积体系。Through identifying and analysing the 120 pieces of rock slices, arranging and analysing the 60 measured heavy mineral data, calculationing and reaseaching the 40 grain size data, as the same time considering area sedimentary facies setup, and combining predecessors correlation data, provenance analysis of upper Triassic Chang 63 sand set in Huanxian region in Ordos Basin is maken. The resuh indicates that provenance of Huanxian region mainly lay to westen of the study area, secondly northeastern, a little northern. Buihing up depositional systems of Chang 63 sand set in combination with regional geological characteristic analysis is presented.

关 键 词：物源分析 轻矿物 重矿物 沉积体系 上三叠统 鄂尔多斯盆地 

分 类 号：P612.26[天文地球—矿床学]