source of sediments是什么意思

用法例句

The pattern of hypo-stable heavy mineral zone, hypo-stable heavy mineral +stable mineral zone and stable mineral zone are distributed from north-east to south-west, quartz cathode luminescence characteristics indicate that the source mother rock is a middle-low class metamorphic rock, which shows that the sedimentary sources of the Reservoir Group Chang 6 in the studied are.

石英阴极发光特征表明物源母岩为中低级变质岩系 ,说明研究区长6油层组沉积物源主要来自北东部吕梁山区和大青山区。

In the sedimentary source obvious tectonic movements and changes occurred during 4.

8 Ma 3次构造热事件;沉积物源区在42。

Through analyses of heavy minerals and rock compositions, it is first found that the sedimentary source in the area comes from 2 directions, one is Mobai area in east-north direction, the other is Xiaoguai direction.

通过对该区重矿物分析、岩石组分等的分析,首次发现该区沉积物源来自两个方向,一个是北东方向的莫北地区,另一个是西北的小拐方向。