[1]邵 雨,杨勇强,万 敏,等.吉木萨尔凹陷二叠系芦草沟组沉积特征及沉积相演化[J].新疆石油地质,2015,36(06):635.[doi:10.7657/XJPG20150602]
 SHAO Yu,YANG Yongqiang,WAN Min,et al.Sedimentary Characteristic and Facies Evolution of Permian Lucaogou Formation in Jimsar Sag, Junggar Basin[J].Xinjiang Petroleum Geology,2015,36(06):635.[doi:10.7657/XJPG20150602]
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吉木萨尔凹陷二叠系芦草沟组沉积特征及沉积相演化()
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《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

卷:
36
期数:
2015年06期
页码:
635
栏目:
出版日期:
2015-12-01

文章信息/Info

Title:
Sedimentary Characteristic and Facies Evolution of Permian Lucaogou Formation in Jimsar Sag, Junggar Basin
文章编号:
1001-3873(2015)06-0635-07
作者:
邵 雨1杨勇强2万 敏1邱隆伟2操应长2杨生超2
(1.中国石油 新疆油田分公司 勘探开发研究院,新疆 克拉玛依 834000;2.中国石油大学 地球科学学院,山东 青岛266580)
Author(s):
SHAO Yu1 YANG Yongqiang2 WAN Min1 QIU Longwei2 CAO Yingchang2 YANG Shengchao2
(1.Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China;2.College of Geosciences, China University of Petroleum, Qingdao, Shandong 266580, China)
关键词:
准噶尔盆地吉木萨尔凹陷芦草沟组沉积特征沉积相
Keywords:
Junggar basin Jimsar sag Lucaogou formation sedimentary characteristic sedimentary facies
分类号:
TE112.221
DOI:
10.7657/XJPG20150602
文献标志码:
A
摘要:
综合利用岩心、薄片、录井等资料,研究了吉木萨尔凹陷芦草沟组的沉积特征及沉积相。研究认为,吉木萨尔凹陷芦草沟组受陆源碎屑注入、火山活动和内源碳酸盐岩的影响,总体具有以白云质岩类为主、岩石组分复杂、结构多变等特点。湖盆由早期的敞流湖盆逐渐演变为晚期的闭流湖盆,甜点体具有粉砂层薄、石英和长石含量高、碳酸盐矿物含量高、黏土矿物含量低的特点,主要发育于三角洲、水下浅滩、混合坪、云坪等沉积环境。下甜点体内石英和长石含量较高,而上甜点体内白云石含量较高,甜点体间则主要发育半深湖泥和重力流沉积。由于气候的周期性变化,造成沉积物沿湖盆边缘至盆地中心呈环带状分布,纵向上具有较强的非均质性。在芦草沟组沉积时期,风携带大量火山物质进入湖盆,造成了湖盆中正常沉积物与火山物质及陆源碎屑物质混合沉积。
Abstract:
The systematic studies of the sedimentary characteristic and sedimentary facies of the Permian Lucaogou formation in Jimsar sag of Junggar basin are based on the available cores, thin sections and logging data. The results show that this formation was affected by the charging of terrigenous detrital, volcanic activity and endogenous carbonate rocks, and dominated by dolomitic rock with complex rock components and varied structures. The lacustrine basin gradually changed from early open lake basin to late closed lake basin. The dessert spots are mainly distributed in such sedimentary environments as delta, underwater bank, mixed flat and dolomitic flat, etc, and characterized by thin silty layer, high contents of quartz, feldspar, carbonate mineral, and low content of clay minerals. The lower sweet spot interval has high contents of quartz and feldspar, while the upper one has high content of dolomite, between which the deposits of semi-lacustrine lake mud and gravity flow occur. Because of the periodical change of climate, the deposits appear in ring strips along lake rim to the lake center with strong heterogeneity in the vertical. In the Lucaogou formation sedimentary period, a lot of volcanic materials were carried by wind into the lacustrine basin, resulting in a mix of normal sediment, volcanic and terrigenous detrital materials in the basin

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更新日期/Last Update: 2015-12-24