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Compositional and spectroscopic investigation of three ungrouped carbonaceous chondrites

Meteoritics & Planetary Science, 2022
Ungrouped carbonaceous chondrites are not easily classified into one of the well‐established groups due to compositional/petrological differences and geochemical anomalies.
M. Yeşiltaş   +6 more
semanticscholar   +1 more source

RAMAN-GEOTHERMOMETER FOR CARBONACEOUS CHONDRITES

Доклады Российской академии наук. Физика, технические науки, 2023
Samples of the Murchison meteorite (carbonaceous chondrite, type CM2) were kept isothermally in a specially designed device at temperatures of 200, 500 and 800°C. After the samples cooled down in an inert helium atmosphere, Raman scattering spectra were taken.
S. A. Voropaev   +2 more
openaire   +1 more source

The surprising thermal properties of CM carbonaceous chondrites

Meteoritics and Planetary Science, 2020
Measurements of the low‐temperature thermodynamic and physical properties of meteorites provide fundamental data for the study and understanding of asteroids and other small bodies.
C. Opeil   +3 more
semanticscholar   +1 more source

Amino acids in carbonaceous chondrites

Origins of Life, 1974
For almost 20 years laboratory experiments have advanced the concepts of chemical evolution, particularly with regard to formation of the amino acids. What has been generally lacking is concrete natural evidence for this chemical evolution hypothesis.
J G, Lawless, E, Peterson
openaire   +2 more sources

Extraterrestrial organic compounds and cyanide in the CM2 carbonaceous chondrites Aguas Zarcas and Murchison

Meteoritics and Planetary Science, 2020
Evaluating the water‐soluble organic composition of carbonaceous chondrites is key to understanding the inventory of organic matter present at the origins of the solar system and the subsequent processes that took place inside asteroid parent bodies ...
J. Aponte   +9 more
semanticscholar   +1 more source

Carbonaceous Chondrites and the Condensation of Elements from the Solar Nebula

Astrophysical Journal, 2020
Common features of all carbonaceous chondrite groups are invariant refractory element ratios, depletions of moderately volatile elements as a function of their condensation temperature (TC), and strongly depleted highly volatile element concentrations ...
H. Vollstaedt, K. Mezger, Y. Alibert
semanticscholar   +1 more source

Deuterium in carbonaceous chondrites

Earth and Planetary Science Letters, 1980
Hydrogen isotopic compositions in seven carbonaceous chondrites lie in the range -70 to +771 per thousand relative to standard mean ocean water. These values decrease, to a range from -145 to +219 per thousand, after low-temperature oxidation in an oxygen plasma.
Y KOLODNY, J KERRIDGE, I KAPLAN
openaire   +1 more source

Xenon in Carbonaceous Chondrites

Nature Physical Science, 1972
Carbonaceous chondrites contain two isotopically distinct components of trapped xenon which cannot be explained by the occurrence of nuclear or fractionation processes within these meteorites.
O. K. MANUEL, E. W. HENNECKE, D. D. SABU
openaire   +1 more source

Matrices of Carbonaceous Chondrite Meteorites

Annual Review of Earth and Planetary Sciences, 1993
The morphology, classification, and chemistry of the matrices of carbonaceous chondrite (CC) meteorites is reviewed based on recent research results. The various kinds of CCs are examined in terms of their matrix mineralogy. Alteration processes in CCs are discussed.
P R Buseck, X Hua
openaire   +2 more sources

The ultraviolet spectra of carbonaceous chondrites

Celestial Mechanics and Dynamical Astronomy, 1992
Optical spectroscopy of meteorites is an important laboratory tool for the study of the origin and evolution of solar and galactic interstellar minor bodies. In the region from the visible to the ultraviolet, the absorption spectra have hitherto been measured on the Bruderheim (Egan and Hilgeman, 1975), the Orgueil (Huffman, 1977), the Murchison ...
T. Inagaki, S. Yabushita, K. Wada
openaire   +1 more source

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