A cap shaped argillaceous cover existing on the upper part of ore bodies works as a shielding layer.

成矿期矿化体上部帽状泥质地层为遮挡层。

In this paper, strength properties of anisotropic rock have been measured for an argillaceous siltstone from somewhere.

本文研究了某地泥质粉砂岩各向异性强度特征。

Organic extraction was conducted for copper from the purple argillaceous-arenaceous dolomite in the Dongchuan copper mine.

对云南东川铜矿的紫色泥砂质白云岩进行了有机质萃取铜的实验。

The ore-bearing rock are mainly fine elastic rocks, breccia of albite-carbonate and carbonaceous- siliceous argillaceous rock.

主要容矿岩石为浅变质细碎屑岩，钠长碳酸盐角砾岩及碳硅泥质岩；

The Palaeozoic caprocks in Erduosi Basin are mainly argillaceous rocks, aluminous rocks, gypsum rocks and dense carbonate rocks.

鄂尔多斯盆地古生界盖层主要为泥质岩、铝土岩、膏岩和致密碳酸盐岩。