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

作者在赋矿层中首次发现了层状电。

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色粘土质和灰绿色粘土质页中,分上下2个矿系,4个矿层。

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

常少量有机质或与褐煤矿层等伴生。