Computer Science
Scientific paper
Dec 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990e%26psl.101..313r&link_type=abstract
Earth and Planetary Science Letters, Volume 101, Issue 2-4, p. 313-322.
Computer Science
36
Scientific paper
A method for determining ages of Mid Ocean Ridge Basalts (MORB) erupted within the last 8000-10,000 years is presented and assessed. This technique employs radioactive disequilibrium between the U-series parent/daughter isotopes 230Th and 226Ra. Ba is used as a surrogate stable Ra isotope in order to constrain the amount of Ra-Th fractionation during generation of the basalts. Ages are determined by comparing the present day (226Ra/230Th) activity ratio to an inferred initial value. Measurements on a number of MORB from the East Pacific Rise (EPR) show that there is a strong correlation between Ba/Th and (226Ra/230Th) for the youngest basalts, giving confidence in this approach. The ages derived for dredged and submersible-collected basalts from the axial zone span a range from 0 to about 8000 years, and provide direct information about the time scale and possible episodicity of eruptions in this environment.
Macdougall Douglas J.
Rubin Ken H.
No associations
LandOfFree
Dating of neovolcanic MORB using (226Ra/230Th) disequilibrium 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 Dating of neovolcanic MORB using (226Ra/230Th) disequilibrium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dating of neovolcanic MORB using (226Ra/230Th) disequilibrium will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1630264