Spherule wikipedia
Spherulites are most common in silica-rich glassy rocks. Sometimes they compose the whole mass; more usually they are surrounded by a glassy or felsitic base. When obsidians are devitrified, the spherulites are often traceable, though they may be more or less completely recrystallized or silicified. In the center of a … See more In petrology, spherulites are small, rounded bodies that commonly occur in vitreous igneous rocks. They are often visible in specimens of obsidian, pitchstone, and rhyolite as globules about the size of millet seed or rice grain, … See more Under the microscope the spherulites are of circular outline and are composed of thin divergent fibers that are crystalline as verified with polarized light. Between crossed Nicols, a black cross appears in the spherulite; its axes are usually perpendicular to one … See more Very large and cavernous spherulites are called lithophysae; they are found in obsidians at Lipari, in Yellowstone Park and other places. The characteristic radiate fibrous structure is usually conspicuous, but the fibers are interrupted by cavities that are often … See more Variolites are a type of radiate fibrous growth, resembling spherulites in many respects, consisting of minute feathery crystals spreading … See more Occasionally spherulites are found that are many centimeters and, even more rarely, up to two or three meters in diameter. Those spherulites, which are more than 20 centimeters in diameter, are called megaspherulites. Near Silver Cliff, Colorado, … See more Artificial glass sometimes crystallizes and contains spherulites that may be as large as a marble. As the glass has little similarity in chemical composition to volcanic obsidians, … See more WebApr 1, 2024 · (ˈsfɛruːl ) noun a very small sphere or globule Collins English Dictionary. Copyright © HarperCollins Publishers Derived forms spherular (ˈspherular) adjective Word …
Spherule wikipedia
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Webcurvation. gyration. bow. whirl. circumvolution. rotation. circulation. arch. “Imagine the solid to extend miles horizontally and miles down, and imagine this spherule to vibrate up and down.”. WebFeb 2, 2024 · spherule (plural spherules) A small sphere. Derived terms . spherular / spherulous; sphaerolite, spherolithe; Martian spherule; Translations
Webspherule: ( sfēr'ūl ), 1. A small spheric structure. 2. A sporangiallike structure filled with endospores at maturity, produced within tissue and in vitro by Coccidioides immitis . [LL. … Webspherule / ( ˈsfɛruːl) / noun a very small sphere or globule Derived forms of spherule spherular, adjective Word Origin for spherule C17: from Late Latin sphaerula a little sphere
WebThe spherule layer is 2m thick in the submarine channel and laterally thins gradually to 20 cm. Very rare marl clasts can be found. The largest two (10-20 cm long) were found in the … WebSpherule is a related term of bubble. As nouns the difference between spherule and bubble is that spherule is a small sphere while bubble is a spherically contained volume of air or …
WebThe 'iron' spherule type appears in two forms; those with a Ni-rich metal globule (or its oxidised remains) visible at the surface of a N i-free magnetite-wiistite shell, and those without the ...
WebDec 19, 2024 · Twenty-five spherule cases were identified, and they represented 3.9% of all AUS cases reviewed (Table 1). One patient had 2 FNA samples from the same nodule, both samples contained spherules, and this patient was included only once for the analysis. The mean age of the spherule cohort was 62.9 years, and there was a wide age range (28-83 … blackhawks player teesWebSpherule is a related term of bubble. As nouns the difference between spherule and bubble is that spherule is a small sphere while bubble is a spherically contained volume of air or other gas, especially one made from soapy liquid. As a verb bubble is to produce bubbles, to rise up in bubbles (such in foods cooking). game the godfather five familiesWebSpherule is a related term of particle. As nouns the difference between spherule and particle is that spherule is a small sphere while particle is a very small piece of matter, a fragment; especially, the smallest possible part of something. game the goalsWebA record of impacts whose craters have since been obliterated, most notably those in pre-Mesozoic oceanic crust, could survive in the form of spherule layers. Secular changes in surface environments and/or the nature of the impactors striking Earth through its history could also be reflected in differences in spherules and spherule layers as a ... blackhawks player uniformWebspher·ule. ( sfēr'ūl ), 1. A small spheric structure. 2. A sporangiallike structure filled with endospores at maturity, produced within tissue and in vitro by Coccidioides immitis. [LL. … blackhawks playoff historyWebNoun ( en noun ) (mathematics) A regular three-dimensional object in which every cross-section is a circle; the figure described by the revolution of a circle about its diameter . A spherical physical object; a globe or ball. * Milton Of celestial bodies, first the sun, / A mighty sphere , he framed. * 2011 , Piers Sellers, The Guardian , 6 July: blackhawks playoff appearancesWebspherules: double-contoured, highly refractile bodies in which the fungus Coccidioides immitis occurs in animal tissues. Called also sporangia. blackhawks playoff odds