Results 261 to 270 of about 69,839 (285)

Impact remnants rich in carbonaceous chondrites detected on the Moon by the Chang’e-4 rover

Nature Astronomy, 2021
Yazhou Yang, Shuai Li, Meng‐Hua Zhu, Yang Liu, Bo Wu, Jun Du, W. Fa, R. Xu, Zhiping He, Chi Wang, B. Xue, Jianfeng Yang, Yongliao Zou   +12 more
semanticscholar   +1 more source

Spectral reflectance properties of carbonaceous chondrites: 8. “Other” carbonaceous chondrites: CH, ungrouped, polymict, xenolithic inclusions, and R chondrites

Icarus, 2012
We have analyzed reflectance spectra (0.3–2.5 lm) of a number of ungrouped or tentatively grouped carbonaceous chondrites (CCs), possible CC-type xenoliths in an aubrite (Cumberland Falls) and a howardite (PRA 04401), a CH chondrite (PCA 91467), a CC polymict breccia (Kaidun), and some R chondrites.
E.A. Cloutis, P. Hudon, T. Hiroi, M.J. Gaffey, P. Mann   +4 more
openaire   +1 more source

Organic constituents of carbonaceous chondrites.

Life sciences and space research, 2002
From a brief discussion of forms of meteorite carbon it is concluded that almost all the carbon in the carbonaceous chondrites is present as organic matter. Attempts to extract and identify this organic matter are then reviewed. It is shown that only 25 per cent has been extracted and only about 5 per cent chemically characterized.
M H, Briggs, G, Mamikunian
openaire   +1 more source

Amino Acids in an Antarctic Carbonaceous Chondrite

Science, 1979
Amino acids have been found in aqueous extracts of a C2 carbonaceous chondrite recovered from Antarctica. The composition of the amino acids strongly suggests that they have a meteoritic origin. Comparison of these results with those obtained with other C2 chondrites supports the view that Antarctic meteorites have not been significantly altered by ...
J R, Cronin, S, Pizzarello, C B, Moore
openaire   +2 more sources

Origin of organic compounds in carbonaceous chondrites

Advances in Space Research, 1989
Carbonaceous chondrites, a class of primitive meteorite, have long been known to contain their complement of carbon largely in the form of organic, i.e., hydrocarbon-related, matter. Both discrete organic compounds and an insoluble, macromolecular material are present.
openaire   +2 more sources

Carbonaceous Chondrite

2011
Tilman Spohn, Frank Sohl
openaire   +2 more sources

Quantitative models for the elemental and isotopic fractionations in chondrites: The carbonaceous chondrites

Geochimica et Cosmochimica Acta, 2019
C. Alexander
semanticscholar   +1 more source

Quantitative models for the elemental and isotopic fractionations in the chondrites: The non-carbonaceous chondrites

Geochimica et Cosmochimica Acta, 2019
C. Alexander
semanticscholar   +1 more source

Carbonaceous Chondrite

2004
openaire   +1 more source

ON THE ORIGIN OF CARBONACEOUS CHONDRITES*

Annals of the New York Academy of Sciences, 1963
openaire   +2 more sources