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Spherule definition: a small sphere or spherical body.. See examples of SPHERULE used in a sentence.
The meaning of SPHERULE is a little sphere or spherical body. How to use spherule in a sentence.
1.15.4.4 Deep-Sea Spherules. Magnetite–wüstite spherules recovered from deep-sea sediments are of extraterrestrial origin and result from oxidation of metal particles during atmospheric entry. They have long been known to have isotopically heavy oxygen, but this was attributed to exchange with isotopically heavy oxygen in the stratosphere ...
The spherule layers per se commonly display large rip-up clasts from subjacent strata (Figs. 1.3-4b, c), normal grading, and/or cross-stratification (Fig. 1.3-4b). The Late Archaean to Palaeoproterozoic spherule layers are enclosed in muddy strata which are thinly laminated and show few or no signs of deposition from currents or waves ( Fig. 1. ...
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.
Jan 1, 2015 · Definition. Spherules are distal deposits of meteorite impacts. They are spherical droplets that can form in two ways: as silicate splash particles of ejected impact melt and as condensates from the rock-vapor plume. Glassy spherules that do not contain any crystallites are called microtektites (Glass 1990 ).
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Nov 20, 2015 · Definition. In sedimentary, igneous, and metamorphic environments, the word spherule generally refers to a small sphere or spherical body in μm to mm size range, which is mostly composed of radially arranged crystals (Wolf 1978; Jongerius and Rutherford 1979; Best 2003; Zhou and Chafetz 2009; Glass and Simonson 2013 ).
