clast


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clast

 (klăst)
n.
A rock fragment or grain resulting from the breakdown of larger rocks.

[From Greek klastos, broken, from klān, to break.]

clast

(klæst)
n
(Minerals) a fragment of (sedimentary) rock broken off from a larger rock

clast

(klæst)

n.
a fragment of a clastic rock formation.
[1950–55; probably back formation from clastic]
ThesaurusAntonymsRelated WordsSynonymsLegend:
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"
References in periodicals archive ?
(a) Spectacular image of the ash cloud erupted by the volcano during the early stage of the 2010 activity (https://hiticeland.com/places_ and_photos_from_iceland/eyjafjallajokull causing); (b) back-scattered electron microscope images of different clast types sampled in the basal level of the fallout deposit related to the open phase of the 2010 eruption.
All samples are characterized by a very heterogeneous fabric with a variety of different clasts embedded in a fine-grained matrix framework.
Boulder and cobble conglomerates of the Rangeley Formation contain clasts derived from the adjacent pre-Late Ordovician Boundary Mountains terrane.
In this sense, it is important to point out that only a very small fraction of the clasts are ventifacts; being the vast majority, however, rounded or subrounded clasts of the same lithology and size than the ventifacts.
Figure 7 demonstrate the proportion of the different clasts in each site.
Hard mineral clast sediments applied to dry archaeological fields in the distant apical islands of the Polynesian triangle are frequently associated with sweet potato / kumara (Ipomoea batatas (L) Lain.) cultivation.
"Clast Label Company is very proud to have earned the Eugene Singer Award for 2011.
A variety of clast types is found in the breccia--conglomerate units, especially rocks from the footwall of the deposits (e.g.
This is why we are pleased to announce the formation of the Center for Lane Active-learning of Science and Technology, or CLAST. A consortium of Lane County school districts, the Lane Education Service District and science and math educators from the UO, CLAST provides infrastructure for sharing and refurbishment of instructional materials that focus on science, engineering and related technology.
There was still time for Nemanja Vidic to be given his marching orders for two yellow cards - no sending-off was backed at a Betfair low of 1.06 - and Ferguson may also have to plan for next Sunday's clast at Chelsea without midfielder Michael Carrick, who limped off at half-time.