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塔里木盆地侏罗系层序地层特征

刘辰生 郭建华

地质科技情报2011,Vol.30Issue(5):5-11,7.
地质科技情报2011,Vol.30Issue(5):5-11,7.

塔里木盆地侏罗系层序地层特征

Sequence Analysis of Jurassic in Tarim Basin

刘辰生 1郭建华2

作者信息

  • 1. 中南大学有色金属成矿预测教育部重点实验室,长沙410083
  • 2. 中南大学地球科学与信息物理学院,长沙410083
  • 折叠

摘要

Abstract

Based on analysis of outcrops, logging, and seismic data, 8 sequence boundaries can be recognized in Jurassic in Tarim Basin. Except that sequence boundaries of JSB6 and JSB7 are type II , the others are type I . The abrupt change of facies and strata erosion are often developed from lower to upper of sequence boundaries. 7 sequences can be recognized according to 8 sequence boundaries. The sequences are distributed unevenly in Tarim Basin. Sequences JSQ1 and JSQ2 are developed in Yuqi area of Akekule, Manjiae, Caohu, and western part of Tadong area. JSQ3 is distributed all over the study area. Sequences of JSQ4 and JSQ5 are found in Caohu, Manjiae and western part of Tadong area. JSQ6 and JSQ7 are distributed in Kuqa depression, with no distribution inner Tarim Basin. There are various types of Jurassic facies, including fan delta, fluvial, lacustrine, slope fan developed in LST and delta. Later uplift, erosion and palaeogeomorphology are the main reasons for the uneven distribution of Jurassic sequence.

关键词

塔里木盆地/层序地层学/侏罗系/扇三角洲/前陆盆地系统

Key words

Tarim Basin/ sequence stratigraphy/ Jurassic/ fan delta/ foreland system

分类

天文与地球科学

引用本文复制引用

刘辰生,郭建华..塔里木盆地侏罗系层序地层特征[J].地质科技情报,2011,30(5):5-11,7.

基金项目

国家重大专项子专题"西部碎屑岩储层分布模式及综合建模研究"(2008ZX05002-005-007HZ) (2008ZX05002-005-007HZ)

地质科技情报

OA北大核心CSCDCSTPCD

2096-8523

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