A pyroclastic rock; (also) a pyroclastic rock fragment. Cf. pyroclast, n.
| 单词 | θ5730 |
| 释义 | the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > volcanic rocks > volcaniclastic (5) pyroclastic1896 A pyroclastic rock; (also) a pyroclastic rock fragment. Cf. pyroclast, n. volcaniclastics1970 In plural. Volcaniclastic rocks or deposits. Subcategories:— fragment (1) — varieties of (2) |
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