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clast

   Also found in: Acronyms, Wikipedia 0.10 sec.
clast  (klst)
n.
A rock fragment or grain resulting from the breakdown of larger rocks.
[From Greek klastos, broken, from kln, to break.]
clast  (klst)
A rock fragment or grain resulting from the breakdown of larger rocks.
clastic adjective (klstk)
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.clast - (geology) a constituent fragment of a clastic rock
geology - a science that deals with the history of the earth as recorded in rocks
clastic rock - (geology) a rock composed of broken pieces of older rocks
fragment - a piece broken off or cut off of something else; "a fragment of rock"
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The fragmentation of the magmatic foam is violent and causes the bubble clasts to collide against the conduit wall and with each other resulting in finely dispersed fragments (Cashman et al.
Igneous rock associations 6. modelling of deep submarine pyroclastic ... by Lentz, D.R. / Geoscience Canada
When the soil thaws, the rock settles down, but not quite as far, so that after a number of seasons the combined action of the soil convection and the clast movement results in a sorted pattern.
Halos of stone by Weisburd, Stefi / Science News
In hand specimen, leached, oxidized, and sheared San Diego breccia consists of cobble to boulder sized, sub-rounded aphanite clasts in a dark gray, amorphous silica matrix.
Pan American Gold Corporation Announces New Breccia-hosted ... by Business Wire
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