Priming and eruption of andesite magmas at Taranaki volcano recorded in plagioclase phenocrysts

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Title

Priming and eruption of andesite magmas at Taranaki volcano recorded in plagioclase phenocrysts

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Description

Plagioclase phenocrysts in pre-historic andesites provide insight to the dynamics of magma formation and eruption at Taranaki volcano, New Zealand. The phenocryst population has a diversity of relic cores and a total in situ 87Sr/86Sr range of 0.70440–0.70486. Within-sample 87Sr/86Sr variations of 0.00018 to 0.00043 indicate that many phenocrysts are antecrysts and/or xenocrysts, derived from multiple crystal mush bodies. The Sr-isotopic differences in the phenocrysts of consecutive eruptions...

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Format

Research paper

Research format

Journal article

Date created

2023-08-15

Creator

Shane, Phil / Costa, Fidel / Cronin, Shane / Stirling, Claudine / Reid, Malcolm

URL

https://hdl.handle.net/2292/66169

Related subjects

37 Earth Sciences / 3703 Geochemistry / 3705 Geology / 3706 Geophysics / Science & Technology / Physical Sciences / Geosciences, Multidisciplinary / Geology / Eruption triggering / Antecryst / Plagioclase / Diffusion chronometry / New Zealand / Sr isotopes / EGMONT VOLCANO / NEW-ZEALAND / TEMPORAL EVOLUTION / NORTH-ISLAND / MT. TARANAKI / DIFFUSION / ORIGIN / MELT / INTRUSION / TRACE / 0403 Geology

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