ash deposit
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ash field — A land area covered by a relatively thick or distinctive, surficial deposit of volcanic ash (air fall) that can be traced to a specific source and has well defined boundaries. An ash field can be distinguished from adjacent landforms or land… … Glossary of landform and geologic terms
ash flow — /ˈæʃ floʊ/ (say ash floh) noun 1. an avalanche of volcanic ash, generally a highly heated mixture of volcanic gases and ash and produced by sudden explosion. 2. a deposit of volcanic ash and other debris resulting from such a flow and found lying …
ash fall — /ˈæʃ fɔl/ (say ash fawl) noun 1. a rain of airborne volcanic ash falling from the cloud which follows an eruption. 2. a deposit of volcanic ash resulting from such a fall and found lying on the ground surface …
ash field — noun Etymology: ash (III) : a thick widespread deposit of volcanic ash called also ash plain … Useful english dictionary
deposit — 1. noun 1) a thick deposit of ash Syn: accumulation, sediment; layer, covering, coating, blanket 2) a copper deposit Syn: seam, vein, lode, layer, stratum, bed … Thesaurus of popular words
deposit — 1. noun 1) a thick deposit of ash Syn: layer, covering, coating, blanket, accumulation, sediment 2) a copper deposit Syn: seam, vein, lode, layer, stratum … Synonyms and antonyms dictionary
ash fall — Geol. 1. a rain of airborne ash resulting from a volcanic eruption. 2. the deposit produced by such an event. Also, ashfall. * * * … Universalium
deposit — Synonyms and related words: accumulation, acquitment, acquittal, acquittance, allocation, alluvion, alluvium, amortization, amortizement, ash, assignment, bank, binder, bond, bosom, bottle up, bottomry, bundle away, bury, cache, cash, cash… … Moby Thesaurus
ash fall — Geol. 1. a rain of airborne ash resulting from a volcanic eruption. 2. the deposit produced by such an event. Also, ashfall … Useful english dictionary
Mazama Ash — ▪ paleontology volcanic ash deposit widely distributed in the northwestern United States and southwestern Canada. The ash was released by the eruption of Mount Mazama, the event that produced Crater Lake in Oregon. The eruption was a… … Universalium
Bridge River Ash — The Bridge River Ash is a large geologically recent volcanic ash deposit that spans from southwestern British Columbia to central Alberta, Canada. The ash consists of dust sized shards ellipsoidal fragments of pumice. It overlaps the Mount St.… … Wikipedia
