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spherule

spherule A small spherical particle. Glass spherules resulting from impact-induced melting or volcanic fire-fountaining are common in the lunar regolith. A typical diameter is 100 μm. Nickel-iron spherules, usually less than 30 μm in diameter, derived from the impacting meteorite, are common in impact glasses.

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"spherule." A Dictionary of Earth Sciences. . Encyclopedia.com. 17 Dec. 2017 <http://www.encyclopedia.com>.

"spherule." A Dictionary of Earth Sciences. . Encyclopedia.com. (December 17, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spherule

"spherule." A Dictionary of Earth Sciences. . Retrieved December 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spherule

spherule

spher·ule / ˈsfi(ə)r(y)oōl; ˈsfer-/ • n. a small sphere. DERIVATIVES: spher·u·lar / -yoŏlər/ adj.

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"spherule." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 17 Dec. 2017 <http://www.encyclopedia.com>.

"spherule." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (December 17, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/spherule

"spherule." The Oxford Pocket Dictionary of Current English. . Retrieved December 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/spherule