Results 101 to 110 of about 5,269 (213)

FT-IR spectroscopy of CAI and chondrules in primitive chondrites: techniques and first results [PDF]

, 2004
From the Introduction: Here we present preliminary mid-infrared spectra of CAI, chondrules and matrix from the CV3.2 carbonaceous chondrite Allende. This is part of our ongoing project to compile a database of infrared and optical spectra of minerals and
Grady, M. M., Menzies,, O. N., Morlok,, A.   +2 more
core  

CO Self-Shielding as a Mechanism to Make 16O-Enriched Solids in the Solar Nebula

Challenges, 2014
Photochemical self-shielding of CO has been proposed as a mechanism to produce solids observed in the modern, 16O-depleted solar system. This is distinct from the relatively 16O-enriched composition of the solar nebula, as demonstrated by the oxygen ...
Joseph A. Nuth, III, Natasha M. Johnson, Hugh G. M. Hill   +2 more
doaj   +1 more source

Trace element composition of silicate minerals from Kunashak Meteorite (L6)

Записки Горного института
Major (EPMA) and trace (SIMS) element geochemistry in the silicate minerals (olivine, pyroxene and plagioclase) of Kunashak equilibrated ordinary chondrite (L6) is described. No variations in the major element concentrations of the silicate minerals have
Kristina G. Sukhanova, Olga L. Galankina
doaj  

Synthesis of Si-Fe Chondrule-like Dust Analogues in RF Discharge Plasmas

Applied Sciences
Chondrules are tiny particles that occur in stony meteorites and are considered as the building blocks of early asteroids and planets. It is believed that they were formed by the fast heating of the dust in the solar nebula.
Akdaulet Baikaliyev, Assan Abdirakhmanov, Sagi Orazbayev, Yerbolat Ussenov, Alexander Brodsky, Madi Aitzhanov, Nazym Akhanova, Merlan Dosbolayev, Maratbek Gabdullin, Tlekkabul Ramazanov, Didar Batryshev   +10 more
doaj   +1 more source

Late Pebble Accretion of Comet 81P/Wild 2 Nucleus: Evidence from a Plagioclase-bearing Chondrule Fragment, Pyxie

The Astrophysical Journal
Comet 81P/Wild 2 is a ∼4.5 km-sized primordial object that almost has not been modified by internal heating by ^26 Al decay. Its nucleus could have been formed by hierarchical agglomeration or gravitational collapse of pebble swarms concentrated by ...
Mingming Zhang, Michael E. Zolensky, Kohei Fukuda, Daisuke Nakashima, Michael K. Weisberg, Noriko T. Kita   +5 more
doaj   +1 more source

The Buritizal meteorite: classification of a new Brazilian chondrite

REM: International Engineering Journal
On August 14, 1967, the reporter Saulo Gomes, working at TV Tupi, went to a small city in the State of São Paulo called Buritizal to investigate reports of a meteorite fall and write a newspaper report.
Rogerio Nogueira Salaverry, Maria Elizabeth Zucolotto, Julio Cezar Mendes, Klaus Keil, Jérôme Gattacceca, Fernando de Souza Gonçalves Vasques   +5 more
doaj   +1 more source

Impact fracturing and aqueous alteration of the CM carbonaceous chondrites [PDF]

, 2014
Aqueous alteration of the CM carbonaceous chondrites has produced a suite of secondary minerals, and differences between meteorites in their abundance defines a progressive alteration sequence [e.g. 1, 2]. The means by which this water gained access
Lee, M.R., Lindgren, P., Simpson, S.S.L.
core  

Scanning electron microscopy characterization of iron, nickel and sulfur in chondrules from the Allende meteorite – further evidence for between-chondrules major compositional differences

Revista Mexicana de Ciencias Geológicas, 2014
En este trabajo se analiza la distribución espacial y los contenidos relativos de hierro (Fe), níquel (Ni) y azufre (S) en condros individuales separados de un fragmento del meteorito Allende, por medio de observaciones y análisis con microscopía ...
Daniel Flores-Gutiérrez, Jaime Urrutia-Fucugauchi, Ligia Pérez-Cruz, Raquel Díaz-Hernández, Carlos Linares-López   +4 more
doaj  

Issue Information

Meteoritics &Planetary Science, Volume 61, Issue 2, Page 209-210, February 2026.
wiley   +1 more source

Antarctic meteorite descriptions 1976-1977-1978-1979 [PDF]

All previously distributed meteorite data sheets, plus a number of new ones for 1979 chondrites are included. A comprehensive sample index listing meteorite name/number, classification, and weathering category is also included.
Bogard, D. D., Gabel, E. M., King, T. V. V., Mason, B., Schwarz, C. M., Score, R.   +5 more
core   +1 more source