Trends in rhyolite geochemistry, mineralogy, and magma storage during the last 50 kyr at Okataina and Taupo volcanic centres, Taupo Volcanic Zone, New Zealand
The Taupo Volcanic Zone of New Zealand is the most frequently active rhyolitic zone on
Earth. Since a major caldera-forming eruption episode at∼ 50 ka,> 50 rhyolitic eruption
episodes have occurred at Okataina Volcanic Centre (OVC) and Taupo Volcanic Centre
(TVC). These two active calderas provide an opportunity to examine contemporaneous
magmatic processes at high temporal and spatial resolution. Temporal trends indicate OVC
intra-caldera eruption episodes tapped progressively more evolved (∼ 71–77 wt.% SiO2) …
Earth. Since a major caldera-forming eruption episode at∼ 50 ka,> 50 rhyolitic eruption
episodes have occurred at Okataina Volcanic Centre (OVC) and Taupo Volcanic Centre
(TVC). These two active calderas provide an opportunity to examine contemporaneous
magmatic processes at high temporal and spatial resolution. Temporal trends indicate OVC
intra-caldera eruption episodes tapped progressively more evolved (∼ 71–77 wt.% SiO2) …
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