Results 121 to 130 of about 102,836 (336)

Formation of nickel–iron meteorites by chemical fluid transport

open access: yesScienceOpen Research, 2019
The deposition of solid material from the gas phase via chemical vapor transport (CVT) is a well-known process of industrial and geochemical relevance. There is strong evidence that this type of thermodynamically driven chemical transport reaction plays ...
Werner Schrön
doaj   +1 more source

Radiocarbon datings of Yamato meteorites [PDF]

open access: yes
The terrestrial ages of five Yamato Meteorites were measured by the content of cosmic-ray-produced carbon-14. Three Yamato Meteorites Y-74013, Y-74097, and Y-74136, which are all diogenites, were found at sites from one to two kilometers apart from each ...
Kigoshi, K., Matsuda, E.
core   +1 more source

Microtextures and structures in metal–sulfide grains in NWA 869 meteorite and their relation to thermal history of L‐chondrite parent body

open access: yesMeteoritics &Planetary Science, Volume 60, Issue 3, Page 616-631, March 2025.
Abstract Results of microanalysis study of NWA 869 meteorite, an ordinary chondrite, where silicates, Fe‐Ni alloys, and troilite are major constituents, are reported. The presented study of microtextures in metallic and sulfide grains provides information on processes occurring from the asteroid's accretion, through the impacts until cooling.
Paulina Skirak   +4 more
wiley   +1 more source

Looking for the origin of life in cosmochemistry: Asteroids and their carbon-rich meteorites

open access: yesMètode Science Studies Journal: Annual Review, 2016
Carbonaceous chondrite meteorites are carbon-containing fragments of primitive asteroids that have offered the only samples available to date giving insights into chemical evolution in laboratory analyses.
Sandra Pizzarello
doaj   +1 more source

On the Coahuila meteorites [PDF]

open access: yesAmerican Journal of Science, 1887
n ...
openaire   +2 more sources

Mysterious iodine-overabundance in Antarctic meteorites [PDF]

open access: yes
Halogen as well as other trace element concentrations in meteorite finds can be influenced by alteration processes on the Earth's surface. The discovery of Antarctic meteorites offered the opportunity to study meteorites which were kept in one of the ...
Dreibus, G., Schultz, L., Waenke, H.
core   +1 more source

Textural and compositional characteristics of metallic spherules in impact melt from Monturaqui crater, Chile

open access: yesMeteoritics &Planetary Science, Volume 60, Issue 3, Page 646-662, March 2025.
Abstract Samples of impactite from the small (~350 m diameter) Monturaqui crater in northern Chile contain Fe‐Ni metallic spherules sourced from the iron meteorite impactor. Textural characterization and quantification were done using SEM and μCT data. Two textural types are distinguished, with different size distributions.
Daniel O. Cukierski   +5 more
wiley   +1 more source

Über die Geschichte der Meteorite aus Isotopenmessungen

open access: yesCHIMIA, 1957
The results of radioactive age determinations on meteorites by various methods are summarized. The significance of these figures for the history of meteoritic matter is discussed.
Johannes Geiss
doaj   +1 more source

Meteorites and their Collectors [PDF]

open access: yesScientific American, 1904
n ...
openaire   +1 more source

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