准噶尔盆地东部阜东斜坡头屯河组物源分析

中侏罗统头屯河组为准噶尔盆地东部阜东斜坡最重要的勘探层系，探索储集砂体的物源方向和母岩性质对阜东斜坡头屯河组油气勘探与开发具有重要意义。通过碎屑组分、重矿物类型和组合特征、黏土矿物分区、砂体展布及古地貌特征分析，认为阜东斜坡中侏罗统头屯河组为多物源区沉积。头屯河组沉积时期总体存在2个相对独立的物源方向，分别是北东和南部物源。北东方向发育的火山岩母岩区及南部博格达山中、高级变质岩母岩区为主要物源区，北东方向物源供给逐渐减弱，南部物源供给逐渐增强，北三台经隆起有可能为研究区提供少量物源。

Provenance analysis of Middle Jurassic Toutunhe Formation in eastern Fukang slope,Junggar Basin

Middle Jurassic Toutunhe Formation is the main exploration layer in eastern Fukang slope in Junggar Basin. It is significant to search provenance of reservoir sandbodies for oil and gas exploration and development. This paper systematically analyzed clastic components, type and combination characteristic of heavy minerals, clay minerals partition, sandbody distribution and palaeogeomorphology characteristics, and suggested that middle Jurassic Toutunhe Formation in eastern Fukang slope is a multi-source area deposition. During the sedimentary period of Toutunhe Formation, the north-east and southwest direction provenance both exist. The main sources are volcanic rock area at north-east and the middle to high-grade metamorphic rock area at south, the supply of the provenance from the northeast gradually weakened, and the supply from the south gradually increased, and the Beisantai might provide a small part of provenance.