volcaniclastic

ALASKA VOLCANO OBSERVATORY GLOSSARY
A volcanic rock or unconsolidated deposit composed of pre-existing fragments, particles or clasts of volcanic origin.
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GLOSSARY OF VOLCANIC TERMS
A non-genetic term used to describe any fragmental aggregate of volcanic parentage (Cas and Wright, 1987, p. 8). Rocks formed by the fragmentation of volcanic materials (either magma or volcanic rocks) irrespective of the method of fragmentation. Pyroclastic rocks and epiclastic rocks are both considered to be "volcaniclastic".

Glossary of volcanic terms. - University of Wisconsin Oshkosh. . 2001.

Look at other dictionaries:

  • volcaniclastic — /vol kan i klas tik/, adj. Geol. pyroclastic. Also, volcanoclastic /vol kan euh klas tik/. [1960 65; b. VOLCANIC and CLASTIC] * * * …   Universalium

  • volcaniclastic — adjective A clastic rock chiefly composed of volcanic materials See Also: metamorphiclastic, pyroclastic, sedimentaclastic …   Wiktionary

  • volcaniclastic —    (adjective)    Pertaining to the entire spectrum of fragmental materials with a preponderance of clasts of volcanic origin. The term includes not only pyroclastic materials but also epiclastic deposits derived from volcanic source areas by… …   Glossary of landform and geologic terms

  • volcaniclastic — /vol kan i klas tik/, adj. Geol. pyroclastic. Also, volcanoclastic /vol kan euh klas tik/. [1960 65; b. VOLCANIC and CLASTIC] …   Useful english dictionary

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