Definitions
from the GNU version of the Collaborative International Dictionary of English.
- noun plural (Min.) Volcanic ashes, consisting of small, angular, stony fragments or particles.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
sphere shaped droplet of moltenlava ejected from a volcaniceruption which falls to earth while still at least partiallymolten , ranging in size from 2 to 6millimeters .
Etymologies
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Examples
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Everywhere round our resting-place lay heaps of small pieces of lava which had been thrown out of the volcano (so-called lapilli), and which had not yet had time to weather sufficiently to serve as an under-stratum for any vegetation, and a little from the hut there was a solidified lava stream of great depth.
The Voyage of the Vega round Asia and Europe, Volume I and Volume II Alexander Leslie 1866
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Gold mineralization found at the Burns Block to date occurs near the upper contact of a distinctive fragmental volcanic rock identified as a lapilli tuff.
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Accretionary lapilli are like volcanic hailstones that form by the addition of concentric layers of moist ash around a central nucleus.
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Accretionary lapilli are formed in an eruption column or cloud by moisture or electrostatic forces, with the volcanic ash nucleating on some object and then accreting to it in layers before the accretionary lapillus falls from the cloud.
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Accretionary lapilli from the area around an extinct shield volcano in Idaho.
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Accretionary lapilli is the next entry in this blog.
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Accretionary lapilli from the area around an extinct shield volcano in Idaho.
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Accretionary lapilli was the previous entry in this blog.
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The soils are fertile, particularly toward the north-central region, which lies over lapilli and ashes.
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The crescent-shaped floor of the caldera teems with a network of smaller volcanic mouths, cones, domes, lava channels, dikes, lavas from light felsic flows to viscid red lavas and black obsidian blocks, ochre plains of sandy alluvial deposits and red and black volcanic ejecta, scoria, lapilli and pumice, from a long series of basaltic effusions.
chained_bear commented on the word lapilli
"'I heard a great deal about scoriae, ashes, incandescent dust, the various forms of lava, lapilli and vitreous pumice.'"
--Patrick O'Brian, The Truelove, 178
March 11, 2008