pyroclast


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Related to pyroclast: batholith, tephra, Pyroclastic flow

pyroclast

(ˈpaɪrəʊˌklæst)
n
(Geological Science) a piece of lava ejected from a volcano
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References in periodicals archive ?
At Grotta di Porto Infreschi, Camerota (Italy), a series of marine conglomerates containing Spondylus (probably of the Tyrrhenian geological stage) was succeeded by alternating levels of red clay, breccias, pyroclasts and stalagmitic crusts, sealed at the top by colluvial deposits and rock falls with a Mousterian industry (Bachechi 1989-1990).
Sizes and Shapes of 10-Ma Distal Fall Pyroclasts in the Ogallala Group, Nebraska.