volcanic breccia

基本解释

The thrid part are tuff, ferruginous dolomite, crystal tuff and volcanic breccia.
第三段以凝灰岩、铁质白云岩、晶屑凝灰岩、火山角砾岩为主。
There are three genetic types of mineralized breccia related to porphyry deposits in China, i. e. explosive, intrusive and volcanic breccia.
我国与斑岩矿床有关的矿化角砾岩的主要成因类型为爆破角砾岩、侵入角砾岩、火山角砾岩等。
Sedimentary volcanic breccia, cemented by clay material composed exclusively of mixed chlorite-vermiculite, was discovered in Cretaceous oil-bearing strata, Songliao Basin.
在松辽盆地白垩系含油地层中，首次发现了火山角砾岩沉积体，其粘土胶结物由单一的绿泥间蛭石组成。