鄂尔多斯盆地南部长7期物源分析

Analysis of Chang 7 Member Provenance in the South of Ordos Basin

综合大地构造、火山活动及区域地层岩性展布特征,对盆地南缘母岩分布特征进行分析。并与盆地内部砂岩轻重矿物组合以及砂岩锆石定年两方面进行对比研究,为盆地南缘物源特征分析提供可靠依据。

Based on comprehensive tectonic, volcanic activity, regional stratigraphic and lithologic distribution characteristics, the parent rocks distribution characteristics of southern margin of the basin were analyzed. Comparative study from two aspects of lightheavy mineral assemblage and sandstone zircon dating in the interior of the basin was carried out, which could provide reliable basis for characteristics analysis of the basin provenance of the southern margin.