| 单词 | volcanic rock |
| 释义 | volcanic rock (once / 12820 pages) n WORD FAMILY volcanic rock: volcanic rocks USAGE EXAMPLESHawaii Volcanoes National Park said Monday no one was injured when the lava delta collapsed and sent showers of volcanic rock into the air. Washington Times(Jan 02, 2017) To give the air a sugary smell, a sergeant poured a can of nonalcoholic beer on the hot, volcanic rocks. Wall Street Journal(Nov 28, 2016) Here and there, ornery-looking goats stood atop scattered mounds of volcanic rock. New York Times(Nov 23, 2016) n extrusive igneous rock solidified near or on the surface of the Earth Hypo|Hyper agglomerate volcanic rock consisting of large fragments fused together amygdaloidvolcanic rock in which rounded cavities formed by expanding gas have subsequently become filled with mineral deposits dacitea grey volcanic rock containing plagioclase and quartz and other crystalline minerals basaltthe commonest type of solidified lava; a dense dark grey fine-grained igneous rock that is composed chiefly of plagioclase feldspar and pyroxene volcanic glassa kind of natural glass produced when molten lava cools very rapidly lavarock that in its molten form (as magma) issues from volcanos; lava is what magma is called when it reaches the surface tufa, tuffhard volcanic rock composed of compacted volcanic ash obsidianacid or granitic glass formed by the rapid cooling of lava without crystallization; usually dark, but transparent in thin pieces pitchstonedark acid granitic glass tachylitea basic or basalt glass aaa dry form of lava resembling clinkers pahoehoefreely flowing lava pillow lavalava that hardened in rounded shapes suggestive of pillows; believed to result from underwater eruptions igneous rock rock formed by the solidification of molten magma |
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