The ore-bearing rock is composed mainly of andesitic tuff and tuffite.

作者在赋矿中首次发状电气石岩。

Kapeng syderolite deposit is large,occurred in purple clayey ferruginous mudstone and grey-green clayey shale of Lower Silurian series.

卡棚大型紫砂陶土矿主要赋于志留系下统紫红粘土质含铁泥岩和粘土质页岩中,分上下2个含矿岩系,4个矿。

It is the unsolidified sediment consisting of disordered kaolinite and small amount organic matter and lignite materials.

常含少量有机质或与褐煤矿等伴生。