Concordant 3,676 MYR U-Pb formation age for the Kodaikanal iron meteorite

Details Concordant 3,676 MYR U-Pb formation age for the Kodaikanal iron meteorite Concordant 3,676 MYR U-Pb formation age for the Kodaikanal iron meteorite

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985natur.317..341g&link_type=abstract

Nature (ISSN 0028-0836), vol. 317, Sept. 26, 1985, p. 341-344.

Computer Science

5

Geochronology, Iron Meteorites, Lead Isotopes, Meteoritic Composition, Uranium Isotopes, Chemical Fractionation, Glass, Minerals, Silicates, Meteorites, Dating Methods, Ages, Isotopic Ratios, Uranium, Formation, Lead, Kodaikanal, Iron Meteorites, Inclusions, Silicate, Experiments, Leaching, Phases, Clinopyroxene, Alkali, Glass, Contamination, Metals, Minerals, Comparisons, Cooling, Origin, Collisions, History

Scientific paper

The results of U-Pb isotope analyses on a silicate inclusion from the Kodaikanal iron meteorite, which contains evidence of intensive chemical activity occurring about 800 Myr after the formation of the solar system, are reported. Leaching experiments on the two major phases, clinopyroxene and alkali-rich glass, indicate a contamination by terrestrial Pb attributable to previous curatorial cutting of this meteorite. The leached minerals define concordant U-Pb ages that validate the precise Pb-Pb age of 3676 + or - 3 Myr. The absence of initial Pb indicates a fast cooling of the silicate material. This has already been established for the metal phase, and a collisional origin for Kodaikanal is favored.

Affiliated with

Also associated with

No associations

Rating

Concordant 3,676 MYR U-Pb formation age for the Kodaikanal iron meteorite does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Concordant 3,676 MYR U-Pb formation age for the Kodaikanal iron meteorite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Concordant 3,676 MYR U-Pb formation age for the Kodaikanal iron meteorite will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-802064