海相油气地质2017，Vol.22Issue(3)：23-29,7.DOI:10.3969/j.issn.1672-9854.2017.03.003
塔里木盆地玉北地区奥陶系沉积相与沉积演化模式
Depositional Facies and Sedimentary Evolution Model of Ordovician in Yubei area, Tarim Basin
摘要
Abstract
On the basis of the sequence stratigraphic framework, the sedimentation of Ordovician in the Yubei area of Tarim Basin was studied through the analysis of core, drilling, logging, seismic and palaeontological data. The results show that six sedimentary facies are developed during the Ordovician Period in the studied area, including platform tidal flat, restricted platform, open platform, platform margin, continental margin slope, and shelf. The lateral distribution of sedimentary facies of Ordovician Period were characterized respectively. The characteristics of vertical sedimentary evolution were summarized as follows: At the early stage of Early Ordovician the platform tidal flat facies were developed, and at the late stage, the transitional restricted platform were formed by sea-level rise continuously and gradually, then the open platform facies were developed at Middle Ordovician. At the early stage of Late Ordovician, the slope facies were developed, and at the late stage of Late Ordovician, the shelf depositional system was developed. By the comprehensive analysis of the lateral distribution and vertical evolution of Ordovician sedimentary facies, and the palaeogeographic sedimentary environment, and the controlling factors, the sedimentary evolution models of Ordovician in Yubei area were established.关键词
塔里木盆地/玉北地区/奥陶系/沉积相/沉积演化/沉积模式Key words
Sedimentary facies/Sedimentary evolution/Sedimentary model/Ordovician/Yubei area/Tarim Basin分类
能源科技引用本文复制引用
罗少辉,李九梅,张旭光,张长建,岳勇..塔里木盆地玉北地区奥陶系沉积相与沉积演化模式[J].海相油气地质,2017,22(3):23-29,7.基金项目
本文受中国石化先导项目"塔里木盆地塔中、玉北油气富集规律研究与突破目标"(编号:2013KTXD01)资助 （编号:2013KTXD01）
