- hyaloclastite
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● hyaloclastite nom féminin Roche volcanique fragmentée, produite lors de la rencontre brutale d'une coulée de lave avec de l'eau.
Encyclopédie Universelle. 2012.
hyaloclastite
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Hyaloclastite — is a hydrated tuff like breccia rich in black volcanic glass, formed during volcanic eruptions under water or under ice. It has the appearance of angular flat fragments sized between a millimeter to few centimeters. The fragmentation occurs by… … Wikipedia
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hyaloclastite — GLOSSARY OF VOLCANIC TERMS A deposit comprising small, angular glass fragments formed by nonexplosive shattering of lava or magma flowing into water, ice, or water saturated sediment (Batiza and White, 2000, p. 361: Schmidt and Schmincke, 2000, p … Glossary of volcanic terms
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Brown Bluff — is a tuya located at the northern tip of the Antarctic Peninsula, Antarctica. It formed in the past 1 million years, which erupted subglacially within an englacial lake. The volcano s original diameter is thought to have been about 12 15… … Wikipedia
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