“源-汇”体系主导下的障壁滨岸沉积体系发育模式——以青海湖倒淌河流域为例

doi:10.12108/yxyqc.20180309

岩性油气藏 ›› 2018, Vol. 30 ›› Issue (3): 71–79.doi: 10.12108/yxyqc.20180309

“源-汇”体系主导下的障壁滨岸沉积体系发育模式——以青海湖倒淌河流域为例

陈骥^1,2, 姜在兴², 刘超², 许文茂²

1. 中国石化勘探分公司研究院, 成都 610041;
2. 中国地质大学(北京)能源学院, 北京 100083

收稿日期:2017-06-13 修回日期:2017-09-06 出版日期:2018-05-21 发布日期:2018-05-21
作者简介:陈骥(1988-),男,博士,工程师,主要从事沉积与石油地质综合研究方面的工作。地址:(610041)四川省成都市高新区吉泰路688号中国石化西南科研办公基地中国石化勘探分公司。Email:chenji2007@foxmail.com。
基金资助:
国家重大科技专项“重点油气勘探新领域储层地质与评价”子课题“薄互层—细粒储层地质与评价”（编号：2011ZX0509-002）资助

Depositional models of barrier shoreline sedimentary system under guidance of source-to-sink system theory: a case from Daotang river in Qinghai Lake

CHEN Ji^1,2, JIANG Zaixing², LIU Chao², XU Wenmao²

1. Sinopec Exploration Company, Chengdu 610041, China;
2. College of Energy Resources, China University of Geosciences, Beijing 100083, China

Received:2017-06-13 Revised:2017-09-06 Online:2018-05-21 Published:2018-05-21

摘要/Abstract

摘要： 湖泊的障壁滨岸沉积体系研究一直是湖泊沉积学研究的薄弱点。以青海湖倒淌河流域为例，利用野外露头和遥感影像资料，基于“源-汇”体系的研究思路，识别出青海湖倒淌河流域的“源-汇”体系是由物源区、冲积扇、倒淌河、三角洲和障壁滨岸组成。随着日月山—野牛山一带的隆升，倒淌河流域由原来的古倒淌河和冲积扇沉积逐渐转变成一个相对封闭的“内陆湖”。伴随气候的暖干化和野牛山的进一步隆升，倒淌河发生倒转形成现今的倒淌河-障壁滨岸沉积体系。该体系的形成受控于构造-地貌、物源、水系、气候变化与湖平面的升降。加强对沉积盆地周缘物源区岩性特征、构造作用控制下的湖盆古地貌和古风场的研究，有助于预测陆相断陷湖盆中砂体的有利区。

关键词: 煤系地层, 致密石英砂岩, 储集特征, 酸性水介质, 成岩作用, 山2 段, 榆林地区

Abstract: The research of barrier shoreline sedimentary system of lakes usually plays a weak point of lacustrine sedimentology. Taking Daotang river in Qinghai Lake as an example,based on the outcrop,remote sensing data and"source-to-sink"method,it is defined that the"source-to-sink"system is composed of source area,alluvial fan,Daotang river,delta and barrier shore. Along with the uplifting of the Riyue Mountain and the Yeniu Mountain,the Daotang river basin was gradually transformed into a relatively closed"inland lake". With the warm dry climate and the further uplift of Yeniu Mountain,Daotang river overturned and formed a barrier-coastal sedimentary system. The formation of the sedimentary system is controlled by tectonic geomorphology,source of the material,climate change,river system and lake level variation. The researches about ancient provenance lithology of sedimentary basins,the lake palaeogeomorphology controlled by tectonic action and palaeowind field are favorable for predicting the sand in the continental rift basin.

Key words: coal-bearing strata, tight quartz sandstone, reservoir characteristics, acidulous water medium, diagenesis, the second member of Shanxi Formation, Yulin area

中图分类号:

P618.13

陈骥, 姜在兴, 刘超, 许文茂. “源-汇”体系主导下的障壁滨岸沉积体系发育模式——以青海湖倒淌河流域为例[J]. 岩性油气藏, 2018, 30(3): 71–79.

CHEN Ji, JIANG Zaixing, LIU Chao, XU Wenmao. Depositional models of barrier shoreline sedimentary system under guidance of source-to-sink system theory: a case from Daotang river in Qinghai Lake[J]. Lithologic Reservoirs, 2018, 30(3): 71–79.

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“源-汇”体系主导下的障壁滨岸沉积体系发育模式——以青海湖倒淌河流域为例

Depositional models of barrier shoreline sedimentary system under guidance of source-to-sink system theory: a case from Daotang river in Qinghai Lake

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