A chondrule (from Ancient Greek χόνδρος chondros, grain) is a round grain found in a chondrite. Chondrules form as molten or partially molten droplets in space before being accreted to their parent asteroids. Because chondrites represent one of the oldest solid materials within the Solar System and are believed to … See more Different kinds of the stony, non-metallic meteorites called chondrites contain different fractions of chondrules (see table below). In general, carbonaceous chondrites contain the smallest percentage (by volume) of … See more Most chondrules are composed primarily of the silicate minerals olivine and pyroxene, surrounded by feldspathic material that may either be See more • Glossary of meteoritics • List of meteorite minerals • Carbonaceous chondrites See more • A Pictorial of Chondrules – Meteorites Australia (Meteorites.com.au) • Chondrules and their Origins See more Chondrules are believed to have formed by a rapid (flash) heating (within minutes or less) and melting of solid dust aggregates of … See more • Wlotzka F., Heide F. (1995). Meteorites: Messengers from Space, Springer Verlag, ISBN 0-387-58105-7 • Hewins R.H., Jones R.H., and Scott E.R.D. eds. (1996). Chondrules and the Protoplanetary Disk, Cambridge University Press, UK, ISBN 0-521-55288-5 See more WebFeb 13, 2004 · Chondrules are spherical micrometer- to millimeter-sized objects and are major constituents of chondritic meteorites ( 20 ). Most chondrules have unfractionated REEs ( 21, 22 ), but a few chondrules show fractionated CAI-like REEs that may have been inherited from refractory material in the chondrule precursors ( 18 ).
7 - Chondrules in Enstatite Chondrites - Cambridge Core
WebApr 7, 2024 · Chondrules are small, spherical mineral grains found in meteorites, and are a major component of chondrites. Understanding how the minerals are formed can provide details about the evolution of the early Solar System. The recent study focused on roughly 650 chondrules cut into thin sections. WebWe review silicate chondrules and metal-sulfide nodules in unequilibrated enstatite chondrites (EH3 and EL3). Their unique mineral assemblages, with a wide diversity of … palace\u0027s 8c
Volatile element evolution of chondrules through time PNAS
WebChondren Grassland.jpg 290 × 204; 16 KB. Chondrit.png 294 × 261; 57 KB. Chondrule Textures.jpg 1,732 × 959; 1.03 MB. Chondrules Bjurboele.jpg 290 × 204; 11 KB. … Webchondrite, in general, any stony meteorite characterized by the presence of chondrule s. The only meteorites classified as chondrites that do not contain chondrules are the CI group. These meteorites are so heavily … WebOct 14, 2012 · 1) – związane z falami sejsmicznymi, analizuje się prędkość fal, czyli drgań ośrodka skalnego powstałych w wyniku wstrząsu, np. przy trzęsieniach Ziemi, analizuje się czas dojścia fali, który zależny jest od gęstości skały. Na podstawie gęstości możemy określić rodzaj skały. Falę sejsmiczną można wywołać wybuchem – sztucznym wstrząsem. palace\\u0027s 8b