noun
EXAMPLES FROM CORPUS
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A basalt flow can advance over a kilometre of flat ground in a matter of hours; an andesite may take months.
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Although anorthosite and basalt are the dominant rocks on the Moon, significant amounts of several other related rock types occur.
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Closed basins as deep as 135 feet were bitten out of the underlying basalt .
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Hot water poured out the tops of basalt pillars that normally stand as cold obelisks in the middle of drained-back lava ponds.
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Ocean island and continental flood basalt occurrences represent different expressions of plume activity.
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Small Jerichos plaster patches of basalt in the new flows of warm water.
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The wind gusts now and then, but the sun on the basalt is warm.
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There are beaches of rounded grey basalt pebbles of varying sizes elsewhere around the island.