The Planetary Science Journal, 2023 Remote spectral characterization of near-Earth asteroids (NEAs) relies on laboratory spectral calibration to constrain their surface composition, including mineral chemistry and relative mineral abundances.
Bryn Bowen +10 more
doaj +1 more source
Origin of volatile element depletion among carbonaceous chondrites
Earth and Planetary Science Letters, 2020 Compared to the composition of CI chondrites and the Sun, all other carbonaceous chondrites are variably depleted in volatile elements. However, the origin of these depletions, and how they are related to volatile loss during high-temperature processes ...
J. Hellmann +3 more
semanticscholar +1 more source
3-μm reflectance spectroscopy of carbonaceous chondrites under asteroid-like conditions [PDF]
Icarus (New York, N.Y. 1962), 2019 We measured 3-μm reflectance spectra of 21 meteorites that represent all carbonaceous chondrite types available in terrestrial meteorite collections.
D. Takir +3 more
semanticscholar +1 more source
Iron Isotope Constraints on the Structure of the Early Solar System
The Astrophysical Journal Letters, 2023 The recent advent of nontraditional isotopic systems has revealed that meteorites display a fundamental isotopic dichotomy between noncarbonaceous (NC) and carbonaceous (C) groups, which represent material from the inner and outer solar system ...
Yves Marrocchi +2 more
doaj +1 more source
Outgassing of Ordinary Chondritic Material and Some of its Implications for the Chemistry of Asteroids, Planets, and Satellites [PDF]
, 2006 We used chemical equilibrium calculations to model thermal outgassing of ordinary chondritic material as a function of temperature, pressure, and bulk compositions and use our results to discuss outgassing on asteroids and the early Earth.
Abe +115 more
core +2 more sources
A divergent heritage for complex organics in Isheyevo lithic clasts [PDF]
, 2017 Primitive meteorites are samples of asteroidal bodies that contain a high proportion of chemically complex organic matter (COM) including prebiotic molecules such as amino acids, which are thought to have been delivered to Earth via impacts during the ...
Alexander +114 more
core +3 more sources
The Okhansk Meteorite: Specifics of Composition, Structure, and Genesis [PDF]
Учёные записки Казанского университета: Серия Естественные науки, 2016 The Okhansk meteorite fell on August 18, 1887 near the village of Tabor, about 15 km away from the town of Okhansk in Perm province and weighed 186.5 kg (the total weight of collected fragments, according to P.I. Krotov, was more than 245 kg).
A.I. Bakhtin +3 more
doaj
Igneous Rim Accretion on Chondrules in Low-velocity Shock Waves
The Astrophysical Journal, 2023 Shock-wave heating is a leading candidate for the mechanisms of chondrule formation. This mechanism forms chondrules when the shock velocity is in a certain range.
Yuji Matsumoto, Sota Arakawa
doaj +1 more source
A geochemical study of the winonaites: Evidence for limited partial melting and constraints on the precursor composition [PDF]
, 2017 The winonaites are primitive achondrites which are associated with the IAB iron meteorites. Textural evidence implies heating to at least the Fe, Ni–FeS cotectic, but previous geochemical studies are ambiguous about the extent of silicate melting in ...
Benedix, Gretchen K. +6 more
core +2 more sources
Heterogeneous accretion of Earth inferred from Mo-Ru isotope systematics [PDF]
, 2020 The Mo and Ru isotopic compositions of meteorites and the bulk silicate Earth (BSE) hold important clues about the provenance of Earth's building material.
Budde, Gerrit +2 more
core +2 more sources