Results 81 to 90 of about 3,558 (195)

A Shocking Solar Nebula?

, 2009
It has been suggested that shock waves in the solar nebula formed the high temperature materials observed in meteorites and comets. It is shown that the temperatures at the inner rim of the solar nebula could have been high enough over a sufficient ...
Bouwman, Desch, Frank, Güdel, Hartmann, Hartmann, Hewins, Jones, Kurt Liffman, Liffman, Liffman, Mathieu, Siess, Skinner, Vinković   +14 more
core   +1 more source

Chondrule olivine: Relationship between structure and composition using synchrotron X-ray Laue microdiffraction [PDF]

, 2006
Published ...
Benedix, GK, Bland, PA, Butterworth, AL, Menzies, ON, Tamura, N   +4 more
core  

Trace elements in the silicate minerals of the Borodino Meteorite (Н5)

Записки Горного института
Major (EPMA) and trace (SIMS) element geochemistry in olivine, low-Са pyroxene and mesostasis from porphyritic and barred chondrules, as well as the pyroxene-olivine aggregate and matrix of equilibrated ordinary Borodino chondrite (Н5) is discussed. No
Kristina G. Sukhanova
doaj  

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  

Petrography and mineral chemistry of Escalón meteorite, an H4 chondrite, México

Revista Mexicana de Ciencias Geológicas, 2018
The Escalón meteorite, a crusted mass weighing 54.3 g, was recovered near Zona del Silencio in Escalón, state of Chihuahua, México. The stone is an ordinary chondrite belonging to the high iron group H, type 4.
Adela M. Reyes-Salas, Gerardo Sánchez-Rubio, Patricia Altuzar-Coello, Fernando Ortega-Gutiérrez, Daniel Flores-Gutiérrez, Karina Cervantes-de la Cruz, Eugenio Reyes, Carlos Linares   +7 more
doaj  

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

Classification of stony meteorites and chondrules – the case of meteorite Jesenice

Geologija, 2012
In the first part of the paper there is a description about genesis of meteorites, in particularly about stony meteorites– chondrites, since meteorite Jesenice is an ordinary L chondrite. Chondrules represent main part of the mass ofchondritic meteorites.
Bojan Ambrožič, Sašo Šturm, Miha Jeršek, Breda Mirtič   +3 more
doaj  

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  

Hydrous Chondrites under Shock

The Astrophysical Journal
We examine the shock response of a chondrule-like multicomponent silicate melt enriched with 2 wt% H _2 O, representative of hydrous chondrites, using ab initio molecular dynamics.
Adrien Saurety, Razvan Caracas
doaj   +1 more source

Single chondrule K-Ar and Pb-Pb ages of Mexican ordinary chondrites as tracers of extended impact events

Revista Mexicana de Ciencias Geológicas, 2018
There is a good consensus about the age of the most primitive materials in the Solar System represented by carbonaceous chondrites. From these, a canonical age of the Solar System of 4567 Ma has been defined.
María del Sol Hernández-Bernal, Jesús Solé   +1 more
doaj