Other
Scientific paper
May 1973
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973gecoa..37.1229b&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 37, Issue 5, pp.1229-1247
Other
3
Scientific paper
and (1965) determined He / U ages of corals and other aragonitic fossils and found that the results generally agreed with independent age estimates. As a more extensive and rigorous test of the reliability of He / U ages of fossil corals, I have determined He / U ages on forty-five independently dated Cenozoic corals. Uranium and thorium isotope compositions and Rn 222 retentivities were also determined as consistency checks. The results indicate that reliable ages are obtained when the following consistency tests are met and the following corrections are made: 1. (1) corals are unrecrystallized aragonite. 2. (2) Th 232 is absent, indicating that the samples are free of contaminating detritus. 3. (3) U 234 / U 238 and Th 230 / U 234 ratios are concordant with the He/U age. 4. (4) Rn 223 leakage is less than 5 per cent. 5. (5) a correction is made for inherited helium. 6. (6) a correction is made for alpha particles `shot out' from the coral walls during U and U daughter decay.
No associations
LandOfFree
Helium-uranium dating of corals 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 Helium-uranium dating of corals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Helium-uranium dating of corals will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1669125