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Olivine xenocryst diffusion reveals rapid monogenetic basaltic magma ascent following complex storage at Pupuke Maar, Auckland Volcanic Field, New Zealand

Brenna, Marco; Cronin, Shane; Smith, Ian; Tollan, Peter Michael Edward; Scott, James M; Prior, David J; Bambery, Keith; Ukstins, Ingrid

Description

Monogenetic basalts are spatially and temporally unpredictable and are commonly interpreted to rise extremely rapidly and directly from their mantle source, increasing their potential hazard. The assumption of rapid ascent is commonly based upon the presence of xenocrysts and xenoliths as well as generally short OH and elemental diffusion profiles at the margins of xenocrystic material. We show that small-volume monogenetic basalts may also have complex multi-stage deep mantle magma storage...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
URI: http://hdl.handle.net/1885/202773
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2018.07.015

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