火山成因的
... volcanoclasticrock火山碎屑岩 volcanogenic火山成因的 volcanology火山学 ...
火山沉积型矿床就位于火山喷发旋回顶部;
They mainly belong to effusive facies, explosive facies and volcanogenic sedimentary facies.其岩相主要为喷溢相、爆发相和火山沉积相。
volcanogenic massive sulfide deposits occur widely in the ophiolite of the Erlangping Group of the Eastern Qinling Mountains.东秦岭二郎坪群蛇绿岩中广泛发育火山成因块状硫化物矿床。