Ejecta

n. something which is ejected or expelled

In volcanology, ejecta consists of particles that came out of a volcanic vent, traveled through the air or under water, and fell back on the ground surface or on the ocean floor. Ejecta can consist of:Juvenile particles - (fragmented magma and free crystals)Cognate or accessory particles - older volcanic rocks from the same volcanoAccidental particles - derived from the volcanic basement.
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v. eject, pitch out; shed, expel

ejecta /i:'dʤektə/
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