Water-Saturated and -Undersaturated Melting of Metaluminous and Peraluminous Crustal Compositions at 10 kb: Evidence for the Origin of Silicic Magmas in the Taupo Volcanic Zone, New Zealand, and Other Occurrences

K. Conrad, Walter; Nicholls, I.A.; J. Wall, V.

doi:10.1093/petrology/29.4.765

Public

Water-Saturated and -Undersaturated Melting of Metaluminous and Peraluminous Crustal Compositions at 10 kb: Evidence for the Origin of Silicic Magmas in the Taupo Volcanic Zone, New Zealand, and Other Occurrences

Published in Journal of Petrology • Aug 1, 1988

Authors:

Walter K. Conrad

I.A. Nicholls

V. J. Wall

Abstract

The melting relations of two proposed crustal source compositions for rhyolitic magmas of the Taupo Volcanic Zone (TVZ), New Zealand, have been studied in a piston-cylinder apparatus at 10 kb total pressure and a range of water activities generated by H2O-CO2 vapour. Starting materials were glasses ...

Subject

Silicic

Geology

Dacite

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