霸县凹陷文安斜坡沙河街组一、二段物源综合分析

Comprehensive Analysis of Provenance of the 1st and 2nd Member of Wenan Slope Shahejie Formation in Wenan Slope of Baxian Depression

为了解霸县凹陷文安斜坡的沙河街组一、二段物源供给和流向,对沙河街组一、二段重矿物特征和砂岩岩矿特征进行了分析。研究表明,文安斜坡东部大城凸起为沉积补给区,母岩类型以岩浆岩为主,变质岩影响较小;文安斜坡主要发育北东、南东2个物源入口,其中主要物源分布于文安斜坡北东部(文安城以东地区),次要物源分布于南东部(长丰镇以东区域)。

In order to understand the sedimentary supply and flow direction of the 1st and 2nd Member of Shahejie Formation of Wenan slope in Baxian Depression,this paper gives an analysis of heavy minerals and rocks of this area.Results show that Dacheng Heave in east of this area is the main sediment supplier;mother rock type is mainly magmatite rather than metamorphic rock;the area develops 2 provenances of which the NE direction(east of Wenan city) is the main provenance and SE direction(east of Changfeng town) is the subordinate one.