Results 31 to 40 of about 43,521 (279)
Halite and stable chlorine isotopes in the Zag H3-6 breccia [PDF]
, 2004 Zag is an H3-6 chondrite regolith breccia within which we have studied 14 halite grains ?3mm. The purity of the associated NaCl-H2O brine is implied by freezing characteristics of fluid inclusions in the halite and EPMA analyses together with a lack of ...
Banks, D.A. +3 more
core +1 more source
Geochimica et Cosmochimica Acta, 2018 In Earth and planetary sciences, the chemical composition of chondritic meteorites provides an essential reference to constrain the composition and differentiation history of planetary reservoirs.
N. Braukmüller +4 more
semanticscholar +1 more source
Reduced and unstratified crust in CV chondrite parent body
Nature Communications, 2017 Meteorites may unlock the history of the early solar system. Here, the authors find, through Ca-Fe-rich secondary phases, that the distinction between reduced and oxidized CV chondrites is invalid; therefore, CV3 chondrites are asteroid fragments that ...
Clément Ganino, Guy Libourel
doaj +1 more source
Eos, Transactions American Geophysical Union, 1971 Because of their numerical dominance among meteorite falls, their great age, and their primitive (i.e., quasisolar) compositions, the chondrites are central to discussions of the origin and early history of the solar system. The bibliography includes most American contributions m this field from 1967 to 1970, and this report attempts to summarize our ...
openaire +1 more source
Chromium isotopic homogeneity between the Moon, the Earth, and enstatite chondrites [PDF]
, 2017 Among the elements exhibiting non-mass dependent isotopic variations in meteorites, chromium (Cr) has been central in arguing for an isotopic homogeneity between the Earth and the Moon, thus questioning physical models of Moon formation.
B. Mougel, F. Moynier, C. Gopel
semanticscholar +1 more source
Clays and the Origin of Life: The Experiments
Life, 2022 There are three groups of scientists dominating the search for the origin of life: the organic chemists (the Soup), the molecular biologists (RNA world), and the inorganic chemists (metabolism and transient-state metal ions), all of which have ...
Jacob Teunis (Theo) Kloprogge +1 more
doaj +1 more source
Fluid evolution in CM carbonaceous chondrites tracked through the oxygen isotopic compositions of carbonates [PDF]
, 2017 The oxygen isotopic compositions of calcite grains in four CM carbonaceous chondrites have been determined by NanoSIMS, and results reveal that aqueous solutions evolved in a similar manner between parent body regions with different intensities of ...
Alexander +49 more
core +2 more sources
Chondrules in Enstatite Chondrites [PDF]
, 2018 23 pages, 4 figures. Submitted manuscript for a chapter in the book "Chondrules and the protoplanetary disc" (editors : S. Russell, H. C. Connolly Jr, A. N. Krot) to be published by Cambridge University Press in 2018. This version is free to view and download for personal use only.
Jacquet, Emmanuel +2 more
openaire +3 more sources
Nanoscale Infrared Imaging Analysis of Carbonaceous Chondrites to Understand Organic-Mineral Interactions During Aqueous Alteration [PDF]
, 2019 Organic matter in carbonaceous chondrites is distributed in fine-grained matrix. To understand pre- and postaccretion history of organic matter and its association with surrounding minerals, microscopic techniques are mandatory.
Baden, Naoki +6 more
core +2 more sources
Mössbauer Study of Weathering Products in Meteorites from the Atacama Desert
MagnetochemistryDuring their stay at the surface of the Earth, meteorites undergo terrestrial weathering. In particular, the iron-nickel alloys and iron sulfides that are abundant in many types of meteorites transform into oxides and oxihydroxides (magnetite, maghemite,
Andrew Pyataev +4 more
doaj +1 more source