灰色砂岩

基岩上部为灰色砂岩，下部为紫红色砂质泥岩。

The upper part of the bedrock is gray sandstone , and the lower part is purplish red sandy mudstone .

兰灰色砂岩，用于铺路和建筑。

Bluish-gray sandstone used for paving and building .

辉铜矿不仅仅存在于浅色砂岩中，在紫灰色砂岩中也存在。

The chalcocite not only exists in grey sandstone , but also in grey-purple .

结果U，Ba，Zn，Zr，Hf，Pb等为铀矿的成矿指示元素；灰色粗砂岩与含矿岩石具有相同的成矿指示元素组合和稀土元素特征；

Results The U , Ba , Zn , Zr , Hf , Pb elements has been considered the indicator elements in the forming of uranium ore , and the gray gritstone is analogical indicator elements and REE characteristics with the gray rock in the forming of uranium ore.

砂质内碎屑微晶灰岩一些薄层砂岩和暗灰色粉砂岩显示出滑动构造。

Some thin beds of layered sandstone and dark grey siltstone show slump structures .

新英格兰有许多树木和薄薄的岩石土层。一些薄层砂岩和暗灰色粉砂岩显示出滑动构造。

New England has many trees and thin , rocky soil . some thin beds of layered sandstone and dark grey siltstone show slump structures .

重庆地区属红层分布区，经常遇到紫红色、灰色泥岩与杂色砂岩组成的层状岩体斜坡或软弱基座斜坡，为全国滑坡灾害严重的地区之一。

Chongqing region belonging to the red beds area , distributes many bedded slopes or weak foundation slopes constituted with the red or gray mudstone and mottled sandstone , which is one of the most serious landslide hazard regions in the country .