volcaniclasticWiktionary 原文词源说明From volcanic + clastic.释义（英文）形容词 Adjective(geology) Being a clastic rock chiefly composed of volcanic materials名词 Noun(geology) A clastic rock chiefly composed of volcanic materials词族派生词（1）nonvolcaniclastic相关词（5）metamorphiclasticplutoniclasticpyroclasticsedimentaclasticsedimentoclastic