Results 81 to 90 of about 3,762 (245)
Rare Phosphides and Nitrides in Igneous Clasts within Aqueously Altered Chondrites
The Planetary Science JournalChondritic meteorites and their components provide us with the means to investigate the conditions and processes in the early solar system, including the delivery of bio-essential elements, such as phosphorus, to the early Earth.
Lucas. R. Smith +5 more
doaj +1 more source
Meteoritics &Planetary Science, EarlyView.Abstract We report the discovery of the second (Al,Cu)‐alloy–bearing micrometeorite, FB‐A2, recovered from Mount Gariglione (southern Italy), representing the sixth such occurrence worldwide. Although chondritic in nature, FB‐A2 differs markedly from previously described microspherules.
Giovanna Agrosì +6 more
wiley +1 more source
Boron concentrations in carbonaceous chondrites [PDF]
, 1978 We have analyzed B in carbonaceous chondrites in order to clarify a factor of 100 difference between the solar system B abundance derived from the solar photosphere and that inferred from previous meteorite data. Consistent results were obtained from two
Burnett, D. S. +3 more
core
Spectroscopic studies of acid-resistant residues of carbonaceous chondrites [PDF]
, 1990 P(論文)Mass and IR spectra have been obtained of the acid-resistant residues resulting from HCl and HF treatments of ALH-77307 (C3). ^C NMR spectra of the residues obtained by partial mineral dissolution with acid treatments of Yamato-791717 (C3) and ...
Murae, Tatsushi +2 more
core +2 more sources
Aqueous breakdown of aspartate and glutamate to n-ω-amino acids on the parent bodies of carbonaceous chondrites and asteroid Ryugu. [PDF]
Sci Adv, 2023 Li Y +12 more
europepmc +1 more source
Evolution of small planetary bodies: a view from carbonaceous chondrites [PDF]
, 2018 Carbonaceous chondrites offer a tangible record of the astrophysical and geological processes occurring in the early solar system. They provide insight into the formation and amalgamation of the first solids, through to the geological evolution of small ...
Jean-Antoine Gazi (12312308)
core +1 more source
Modeling Carbon Outgassing from Chondritic Planetesimals
The Planetary Science JournalThe thermochemical evolution of planetesimals is an underprobed stage of volatile delivery to terrestrial planets during their formation, and may contribute to the volatile depletion of the Earth relative to primitive chondrites.
Bo Peng, Diana Valencia
doaj +1 more source
Volatile element depletion in Earth and carbonaceous chondrites [PDF]
, 2019 Volatile elements such as sulfur, zinc, indium and potassium are depleted relative to the Sun in all known inner solar system materials, including Earth, Mars, Moon and differentiated and undifferentiated meteorites.
Braukmüller, Ninja
core
The Planetary Science JournalPrimitive meteorite groups such as the Vigarano, Mighei, and Karoonda carbonaceous chondrites have enigmatic patterns of elemental abundances, with moderately volatile elements—those that transition from vapor to condensate between ∼400 and ∼900 K ...
Jeremy W. Boyce +3 more
doaj +1 more source
Characterization of Mukundpura Carbonaceous Chondrite
Current Science, 2018 Two meteorite fragments collected from the Mukundpura impact site, Rajasthan, India have been analysed using scanning electron microscopy, energy dispersive X-ray spectroscopy, Mossbauer spectroscopy, thermogravimetric analysis (TGA) and Raman spectroscopy. High Fe (22.65 wt%), Ni (1.53%) and S (3.69%) and concentrations of other elements obtained by X-
R. P. Tripathi +2 more
openaire +1 more source