Geology and Oceanography

A Dictionary of Earth Sciences The Concise Oxford Dictionary of English Etymology Further reading

lapilli

A Dictionary of Earth Sciences | 1999 | | Copyright

lapilli Pyroclastic fragments or tephra ranging in size from 2 to 64 mm. Lapilli may be composed of primary magmatic material (e.g. pumice), accessory lithic material, accidental lithic material, or accretions of wet ash-size material (accretionary lapilli). The size-term ‘lapilli’ is usually applied to the lithological clast type to give descriptive terms, e.g. ‘pumice lapilli’ or ‘accessory lithic lapilli’.

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AILSA ALLABY and MICHAEL ALLABY. "lapilli." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "lapilli." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O13-lapilli.html

AILSA ALLABY and MICHAEL ALLABY. "lapilli." A Dictionary of Earth Sciences. 1999. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-lapilli.html

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lapilli

The Concise Oxford Dictionary of English Etymology | 1996 | | Copyright

lapilli fragments of stone from a volcano. XVIII. —pl. of It. lapillo— L. lapillus, dim. of lapis stone.

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T. F. HOAD. "lapilli." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>.

T. F. HOAD. "lapilli." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O27-lapilli.html

T. F. HOAD. "lapilli." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-lapilli.html

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