238U and 232Th-decay series constraints on the timescales of crystal fractionation to produce the phonolite erupted in 2004 near Tristan da Cunha, South Atlantic Ocean
Phonolite pumice found floating offshore of Tristan da Cunha following intense seismic activity southeast of the island July 29–30, 2004 was analyzed for 238U- and 232Th-series nuclides to determine initial 230Th, 226Ra, 210Pb, 210Po, 228Ra, and 228Th activities. The initial (210Po/210Pb) value of 0...
Published in: | Geochimica et Cosmochimica Acta |
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Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Elsevier
2008
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Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/4855/ http://www.sciencedirect.com/science/journal/00167037 |