沉积学报2024，Vol.42Issue(4)：1326-1341,16.DOI:10.14027/j.issn.1000-0550.2022.095
阜康凹陷下侏罗统物源变化对博格达山隆升的响应
Provenance Change in the Lower Jurassic in Fukang Depression(Junggar Basin)and Its Response to the Uplift of the Bogda Mountains
摘要
Abstract
[Objective]The Lower Jurassic Badaowan and Sangonghe Formations in the middle and eastern parts of the Fukang Depression are key intervals for oil and gas exploration,but they are restricted due to their unclear prove-nance.[Methods]In this study,the provenance was analyzed from rock clastic composition,paleocurrent analysis,heavy mineral composition,cathodoluminescence properties and the proportion of sandstone in the strata.[Results and Conclusions]The study area is dominated by the Karameri Mountain provenance during the Lower Jurassic,with limited Northern Tianshan and Bogda Mountains provenance.The Sangonghe Formation was influenced by prove-nances inherited from both the Kalameri Mountain and the northern Tianshan,enhanced by a superposed branch provenance from the Bogda Mountains.In the study area,which has a south-dipping structural background,it is clear that the provenance changed due to the increasing east-to-west uplift of the Bogda Mountains.This southeasterly Low-er Jurassic provenance is the scenario for stratigraphic-lithological traps to develop on the southern slope of the Fu-kang Depression.This may be greatly significant for future oil and gas exploration.关键词
阜康凹陷/博格达山/下侏罗统/物源分析/沉积体系Key words
Fukang Depression/Bogda Mountains/Lower Jurassic/provenance analysis/depositional systems分类
天文与地球科学引用本文复制引用
杨仁超,邸建强,庞玉茂,张学才,方旭庆,冯乔,汪勇,李阳,董亮..阜康凹陷下侏罗统物源变化对博格达山隆升的响应[J].沉积学报,2024,42(4):1326-1341,16.基金项目
中国—东盟海上合作基金项目(12120100500017001)[China-ASEAN Maritime Fund Project,No.12120100500017001] （12120100500017001）
