古地理学报2011，Vol.13Issue(5)：529-538,10.
塔里木地区寒武纪岩相古地理及沉积演化
Lithofacies palaeogeography and sedimentary evolution of the Cambrian in Tarim area
摘要
Abstract
Based on the outcrops, drilling wells and seismic data, the lithofacies palaeogeography maps of the Cambrian in Tarim area were compiled with 5 steps of ① stratigraphic framework establishment, ② sedimentation geology analyses, ③interpretation of sedimentary characters of seismic data, ④ analyses of stratigraphic thickness maps and ⑤comprehensive analyses. These new maps show the distribution of the palaeogeographic units in each stage of the Cambrian: Taxi Platform, a large-scale platform, located in the central and western parts of the Tarim area, while Luoxi Platform, more smaller than the former one, located in the eastern part of the Tarim area. Between the 2 platforms, there was a starved basin which was named Tadong Basin. In the Cambrian, these palaeogeographic units had developed in-heritively under the sustained stretching tectonic setting. The deposition rate, palaeoclimate and relative changes of sea level controlled the differentiation of sedimentary environments in carbonate platform, and also caused the formation of widespread gypsum and salt rock in the Middle Cambrian.Maxi Formations is an important oil-producing rock of the Upper and Middle Yangtze Area.关键词
塔里木地区/寒武纪/岩相古地理/控制因素Key words
northeastern Guizhou Province/Late Ordovician/tectonic movement/carbonate rock ramp/lithofacies palaeogeography分类
天文与地球科学引用本文复制引用
刘伟,张光亚,潘文庆,邓胜徽,李洪辉..塔里木地区寒武纪岩相古地理及沉积演化[J].古地理学报,2011,13(5):529-538,10.基金项目
国家科技重大专项(编号:2008ZX05004)资助 （编号:2008ZX05004）
