地质通报2016，Vol.35Issue(2)：390-397,8.
鄂尔多斯盆地陇东地区三叠纪最大湖泛期沉积物稀土元素地球化学特征及其物源意义
Rare earth element characteristics of sediment samples of Triassic maximum flooding period in ;Longdong area of Ordos Basin and their provenance significance
摘要
Abstract
The period of Chang 7 deposition in Upper Triassic was the maximum flooding period of Ordos Basin. Rare earth ele⁃ments ( REE ) analyses of rock samples from the study area and around the basin show that the REE characteristics of mudstone sam⁃ples of the study area is similar to the characteristics of UCC, and the REE patterns are basically the same as the patterns of ancient granite and metamorphic rocks around the basin, except for the ancient granite of Luliang Mountains in the east region. The experi⁃mental results demonstrate that the sediments of the study area were derived from UCC, with the main composition being felsic rock. All old lands around the basin provided sediments except Luliang Mountains, which were not uplifted at that time.关键词
鄂尔多斯盆地/最大湖泛期/稀土元素/物源Key words
Ordos Basin/maximum flooding period/REE/provenance分类
天文与地球科学引用本文复制引用
范萌萌,李文厚,卜军..鄂尔多斯盆地陇东地区三叠纪最大湖泛期沉积物稀土元素地球化学特征及其物源意义[J].地质通报,2016,35(2):390-397,8.基金项目
国家自然科学基金项目（批准号41330315）和陕西省自然基础研究计划 （）
