古地理学报2012，Vol.14Issue(6)：801-812,12.
大巴山与龙门山前晚三叠世构造运动的储集层沉积学响应
Reservior sedimentary response to tectonic movement of the Late Triassic in front of Dabashan and Longmen Mountains
摘要
Abstract
The evolution of sedimentary facies, X-rays fluorescence analysis of sandstone and mud-stone , and petrographic thin section were used in the research on Fankuai and Xiaotangzi sections in Sichuan foreland basin. We found that the sedimentary environment, palaeoclimate, palaeo-salinity and clastic compositions are relevant to the Indosinian movement of the Late Triassic. The tidal sedimentary environment is developed in the early stage of late-Indosinian movement. The warm palaeoclimate and high palaeosalinity are appeared at the same time. During the depositional period of Member 2 of Xujiahe Formation, the depth of sedimentary water is shallow, and the salinity is high, and the climate changes cool. But during the depositional period of Member 3 of Xujiahe Formation, the climate changes warm a-gain and the salinity reduces. After the Anxian tectonic movement, during the depositional period of member 4 of Xujiahe Formation, the salinity is lower than before, and the continental deposits occur in Sichuan foreland basin. The depth of the sedimentary water is shallow and the climate changes cool. The composition of sandstone, controlled by the late-Indosinian movement, shows the evolution of the provenance in front of Dabashan and Longmen Mountains.关键词
大巴山/龙门山/晚三叠世/沉积环境/构造运动Key words
Dabashan Mountain/Longmen Mountain/Late Triassic/sedimentary environment/tectonic movement分类
天文与地球科学引用本文复制引用
高志勇,白斌,朱如凯,刘柳红,冯佳睿,梅加洛..大巴山与龙门山前晚三叠世构造运动的储集层沉积学响应[J].古地理学报,2012,14(6):801-812,12.基金项目
国家科技重大专项"中西部前陆盆地构造地质、储层特征及有利区评价"(编号:2011ZX05003-002)和国家自然科学青年基金项目(编号:41002034)联合资助 （编号:2011ZX05003-002）
