沉积与特提斯地质2011，Vol.31Issue(1)：1-5,5.
草湖地区侏罗系层序地层及沉积体系特征
Sequence stratigraphy and depositional systems in the Caohu depression, Tarim Basin, Xinjiang
摘要
Abstract
The Jurassic strata in the Caohu depression, Tarim Basin, Xinjiang are divided, on the basis of well logs and regional tectonic evolution, into two third-order sequences J-SQ1 and J-SQ2. During the deposition of J-SQ1 sequences, the climates were warm and humid. The sequence displays the complete rising-falling semicyclic deposits. Till the deposition of J-SQ2 sequences, the climates turned into hot and semiarid ones. The sequences display only the rising semicyclic deposits, and consists of oxidized lacustrine depositional systems in which the littoral-shallow lacustrine sand-mud beach deposits are developed. The braided channel sandstones in J-SQ1 sequences are believed to be the favourable reservoir rocks in the study area due to tremendous thickness, better physical properties and moderate to thick overlying lacustrine mudstone.关键词
草湖凹陷/侏罗系/沉积体系/层序地层Key words
Caohu depression/ Jurassic/ depositional system/ sequence scratigraphy分类
能源科技引用本文复制引用
陆金波,王英民,张雷,王改云,顾秀梅..草湖地区侏罗系层序地层及沉积体系特征[J].沉积与特提斯地质,2011,31(1):1-5,5.基金项目
国家十一五重大科技专项(2008ZX05002) （2008ZX05002）
