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Definition of hydroclast

Chilled glass particles which form by lava–water interactions during subaqueous or subglacial extrusion.

FISHER, R V, AND SMITH, G A . 1991. Volcanism, tectonics and sedimentation, 1–5 in Sedimentation in volcanic settings. SEPM (Society for Sedimentary Geology) Special Publication, No. 45.


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