Temporal variations in U-series disequilibria in an active caldera, Rabaul, Papua New Guinea
Intra-caldera eruptions have been speculated to sample the last batches of magma remaining from earlier caldera-forming eruptions. Rabaul Caldera, New Britain, Papua New Guinea has erupted several times since the last caldera-forming eruption in ad 640, with the most recent intra-caldera eruptions in 1878, 1937-1941 and 1994-present from the Tavurvur and Vulcan vents. U-series isotopes, in conjunction with 87Sr/86Sr and 143Nd/144Nd, were analyzed on 16 samples collected from 1994 to 2001 to...[Show more]
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|Source:||Journal of Petrology|
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