Other
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982gecoa..46.1747k&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 46, Oct. 1982, p. 1747-1754.
Other
Breccia, Chondrites, Fission, Metamorphism (Geology), Particle Tracks, Protoplanets, Chemical Composition, Meteoritic Composition, Phosphates, Uranium
Scientific paper
Fission tracks in phosphates from one gas-poor chondrite and three gas-rich ones are studied to determine their thermal history and brecciation time scales. Model fission track ages are calculated for given track densities due to Pu-244 and U-238; track densities and uranium measurements for whitlockite are shown, and possible sources of the tracks are mentioned. Details of track density and uranium measurements are discussed for each meteorite separately. Whitlockites from all the meteorites give model fission track ages of 4.4 Gyr assuming a Pu/U ratio at 4.55 Gyr of 0.045. The final brecciation event definitely did not reset the track clock in phosphates of one meteor and probably not in another two. It is concluded that the observed fission track ages date the end of metamorphic cooling in the meteorite parent bodies and support the planetesimal model for the formation of xenolithic chondrites.
Kothari Brajesh K.
Rajan Sundar R.
No associations
LandOfFree
Fission track studies of xenolithic chondrites - Implications regarding brecciation and metamorphism 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 Fission track studies of xenolithic chondrites - Implications regarding brecciation and metamorphism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fission track studies of xenolithic chondrites - Implications regarding brecciation and metamorphism will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1030231