Results 91 to 100 of about 3,762 (245)

Marc Chaussidon—Leonard Medal 2026

open access: yes
Meteoritics &Planetary Science, EarlyView.
François Robert
wiley   +1 more source

Young Pb-Isotopic Ages of Chondrules in CB Carbonaceous Chondrites [PDF]

open access: yes, 2005
CB (Bencubbin-type) carbonaceous chondrites differ in many ways from more familiar CV and CO carbonaceous chondrites and from ordinary chondrites. CB chondrites are very rich in Fe-Ni metal (50-70 vol%) and contain magnesian silicates mainly as angular ...
Amelin, Yuri, Krot, Alexander N.
core  

On the chemical evolution of the carbonaceous chondrites

open access: yesGeochimica et Cosmochimica Acta, 1962
X-ray diffraction microtechnique has been applied to nine carbonaceous chondrites, so that a definite knowledge of their mineral composition has been obtained. The existence of magnesium sulphate, elemental sulphur and a magnetic spinel containing Fe3+ ion, has been confirmed. However, troilite is rare, and absent in many cases.
E.R. Dufresne, Edward Anders
openaire   +2 more sources

The Effects of Parent Body Processes on Amino Acids in Carbonaceous Chondrites [PDF]

open access: yes, 2010
To investigate the effect of parent body processes on the abundance, distribution, and enantiomeric composition of amino acids in carbonaceous chondrites, the water extracts from nine different powdered Cl, CM, and CR carbonaceous chondrites were ...
Glavin, Daniel P.   +3 more
core   +1 more source

Organic Matter in Carbonaceous Chondrites [PDF]

open access: yesScience, 1966
H C, Urey   +6 more
openaire   +3 more sources

Pyrolytic studies of carbonaceous matter in Antarctic carbonaceous chondrites [PDF]

open access: yes, 1987
P(論文)Pyrolysis products of the major carbonaceous matter in six Antarctic carbonaceous chondrites, Y-74662 (C2), Y-791198 (C2), Y-793321 (C2), B-7904 (C2), Y-791717 (C3), and ALH-77307 (C3), have been examined by GC-FID and GC-MS.
Murae, Tatsushi   +2 more
core   +1 more source

Study of the Extraterrestrial Materials at Antarctica, III : On the Yamato Meteorites

open access: yesAntarctic Record, 1973
Antarctica is thought to be the most suitable place for searching extraterrestrial materials. Since 1965, we have been studying microtektite and cosmic dust in Antarctica.
Masako SHIMA   +2 more
doaj   +1 more source

Sugars in Carbonaceous Chondrites [PDF]

open access: yesGoldschmidt Abstracts, 2020
Yoshihiro Furukawa   +7 more
openaire   +1 more source

Carbon isotopes in bulk carbonaceous chondrites [PDF]

open access: yes, 1985
The chemical and physical processes involved in the formation of the solar system are examined. Primitive matter has been found on a microscopic scale in a variety of meteorites: fragments of small solar system bodies that were never part of a large ...
Mayeda, T. K.   +2 more
core   +1 more source

Methane from UV-irradiated carbonaceous chondrites under simulated Martian conditions [PDF]

open access: yes, 2012
A UV photolytic process was studied for the production of methane from carbonaceous chondrites under simulated Martian conditions. Methane evolution rates from carbonaceous chondrites were found to be positively correlated to temperature (−80 to 20°C ...
Britt, Daniel T.   +4 more
core   +1 more source

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