Results 101 to 110 of about 64,440 (194)

Northwest Africa 11024—A heated and dehydrated unique carbonaceous (CM) chondrite

open access: yesMeteoritics and Planetary Science, 2018
Based on the high abundance of fine‐grained material and its dark appearance, NWA 11024 was recognized as a CM chondrite, which is also confirmed by oxygen isotope measurements.
S. Ebert   +9 more
semanticscholar   +1 more source

Nondestructive analysis of Bennu samples toward comparative studies with Ryugu samples

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Analyzing primitive extraterrestrial samples from asteroids is key to understanding the evolution of the early solar system. The OSIRIS‐REx mission returned samples from the B‐type asteroid Bennu, providing a valuable opportunity to compare them with the Ryugu samples collected by the Hayabusa2 mission.
Ryota Fukai   +32 more
wiley   +1 more source

Mineralogy and Surface Composition of Asteroids

open access: yes, 2015
Methods to constrain the surface mineralogy of asteroids have seen considerable development during the last decade with advancement in laboratory spectral calibrations and validation of our interpretive methodologies by spacecraft rendezvous missions ...
Burbine, Thomas H.   +4 more
core   +1 more source

Facies mosaic distribution and stratigraphic disorder of a mixed carbonate–siliciclastic tidal succession

open access: yesSedimentology, EarlyView.
ABSTRACT Complex stratigraphic arrangements may be generated through lateral facies transitions from the strata of aeolian depositional systems into bordering peritidal deposits. In such scenarios, sedimentary architectural complexity and associated facies heterogeneities are governed by the interplay between autogenic processes inherent to tidal ...
Victor J. P. Hême de Lacotte   +5 more
wiley   +1 more source

Antarctic Meteorite Newsletter. Volume 7, number 1: Sample requests and allocations [PDF]

open access: yes
Antarctic meteorites, achondrites, carbonaceous chondrites, ions, and stony-irons are ...

core   +1 more source

Molecular Asymmetry in Prebiotic Chemistry: An Account from Meteorites

open access: yesLife, 2016
Carbonaceous Chondrite (CC) meteorites are fragments of asteroids, solar planetesimals that never became large enough to separate matter by their density, like terrestrial planets.
Sandra Pizzarello
doaj   +1 more source

The Maribo CM2 meteorite fall - survival of weak material at high entry speed

open access: yes, 2019
High entry speed (> 25 km/s) and low density (< 2500 kg/m3) are two factors that lower the chance of a meteoroid to drop meteorites. The 26 g carbonaceous (CM2) meteorite Maribo recovered in Denmark in 2009 was delivered by a superbolide observed by ...
Borovicka, Jiri   +2 more
core   +1 more source

Abundances of the elements in the solar system

open access: yes, 2009
A review of the abundances and condensation temperatures of the elements and their nuclides in the solar nebula and in chondritic meteorites. Abundances of the elements in some neighboring stars are also discussed.Comment: 42 pages, 11 tables, 8 figures,
A. Bouvier   +128 more
core   +1 more source

Source regions of carbonaceous meteorites and near-Earth objects [PDF]

open access: yesAstronomy & Astrophysics
The source regions of ordinary chondrites (sim 80 of all falls) and large S-type near-Earth objects (NEOs; sim 30) have recently been identified with three young asteroid families (Karin, Koronis, Massalia) being at the origin of most ordinary chondrite ...
M. Brovz   +17 more
semanticscholar   +1 more source

Ground-based Characterization of Hayabusa2 Mission Target Asteroid 162173 Ryugu: Constraining Mineralogical Composition in Preparation for Spacecraft Operations

open access: yes, 2017
Asteroids that are targets of spacecraft missions are interesting because they present us with an opportunity to validate ground-based spectral observations. One such object is near-Earth asteroid (NEA) (162173) Ryugu, which is the target of the Japanese
Becker, Kris J.   +9 more
core   +1 more source

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