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Related to lapilli: Accretionary lapilli


n. pl. la·pil·li (-pĭl′ī′)
A small, solidified fragment of lava.

[Latin, diminutive of lapis, stone.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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The felsic volcanic sequence consists of dacitic (to rhyolitic) composition intercalated lapilli tuffs, flow banded and fine grained dacites.
After collection total length (mm) was measured for each fish and lapilli otoliths were extracted.
Much of the site's value lies in the fact that the town wasn't simply blown away by Vesuvius in AD 79 but instead was buried under a layer of lapilli (burning fragments of pumice stone).
Lapilli looks sure to go close if reproducing his latest effort, while Brave Display looks to have good claims as he comes down the handicap.
Abstract--The daily deposition of growth increments within both sagittae and lapilli was validated for known-age laboratory-reared (18[degrees]C) larval northern pike (Esox lucius) (9-33 mm in standard length [SL]) sampled 1, 7, 14, 22, and 28 days after hatching.
The pyroclastic flow ranged in size from volcanic bombs and lapilli, to volcanic ash (Heiken & Wohletz 1985).
In a volcanic eruption, lava, tephra, lapilli and ash together with various gases are expelled from a volcanic vent or fissure.
El oido interno contiene tres pares de otolitos, denominados Sagitta, Asteriscus y Lapilli. Los Sagitta son a menudo los de mayor tamano y son utilizados comunmente para la determinacion de edad y crecimiento (Munoz, 2012).
The ghostly ruins of ancient Pompeii (Pompei in Italian) is one of the world's most engrossing archaeological experiences because the ancient town wasn't blown away by the volcanic eruption of Mount Vesuvius but was buried under a layer of lapilli or burning fragments of pumice stone.
The surrounding rocks are sandstone, sand tuff, lapilli tuff, basalt, tuff breccia, and lapilli tuff in different segments.