ignimbrite

[ ig-nim-brahyt ]

noun

, Petrology.

1. a fine-grained volcanic rock consisting mainly of welded shards of feldspar and quartz.

ignimbrite

/ ˈɪɡnɪmˌbraɪt /

noun

1. a rock formed by the deposition at high temperature and the consolidation of a nuée ardente or other type of ash flow, being a complicated mixture of volcanic materials welded together by heat, hot gases, and pressure Also calledwelded tuft See tuft

ignimbrite

/ ĭg′nĭm-brīt′ /

1. A volcanic rock formed by the consolidation of volcanic ash and other material ejected by an explosive volcanic eruption.

Word History and Origins

Origin of ignimbrite¹

1932; < Latin ign ( is ) fire + imbr-, stem of imber rain, shower + -ite ¹

Word History and Origins

Origin of ignimbrite¹

C20: from Latin ign ( is ) fire + imbr ( is ), imber shower of rain + -ite ¹