Sedimentary Characteristics and Main Controlling Factors of Sublacustrine Fans of Triassic in Akekule Area
详细信息
- 责任者：Lu Jinbo (College of Geosciences ; China University of Petroleum ; Beijing 102249 ; China) ; Wang Yingmin
- 刊名：Journal of China University of Petroleum
- 出版年：2011
- 卷期：35(2)
- 关键词：油气勘探 ; petroleum exploration ; 扇形三角洲 ; fan deltas ; 新疆 ; Xinjiang
- 页码：p.12-19
- 图表：6 illus., 19 refs.
- 分类号：1003
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
In this paper, the sedimentary characteristics and controlling factors of the Middle and Upper Triassic sublacustrine fans of Akekule area in Tarim Basin were researched. The results indicate that two kinds of fans, named sand-rich sublacustrine fan and conglomerate-rich sublacustrine fan, are developed in the study area. The sand-rich sublacustrine fan is located in front of the braided river delta and mainly develops in the southern part of the research area. The fan, far from the source, develops stably with moderate sorting and wide distribution. It is mainly controlled by palaeogeomorphy. As a result, this fan is small in scale, close to the source area, and coarse-grained with poor sorting. Since a great number of reservoirs were discovered within the sand-rich sublacustrine fans,it can be concluded that sand-rich sublacustrine fan has better prospect for petroleum exploration compared with conglomerate-rich fan.
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