volcanic clasts

• 火山碎屑

volcanic clasts的用法和样例：

例句

1. A perfact Carboniferous reef complex developed on top of a volcanic seamount on the oceanic floor in the Akiyoshi Terrane, Southwest Japan.
   一个完好的石炭纪生物礁发育在日本秋吉地区的玄武岩熔岩和火山碎屑岩之上。
2. The volcanic successions comprise thick piles of basaltic lavas and subordinate intermediate and silicic lavas and pyroclastics.
   该火山岩系的组成以玄武质熔岩为主，其次有中性和酸性熔岩及火山碎屑岩。