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Stability and chemical composition of pargasitic amphibole in MORB pyrolite under upper mantle conditions

Niida, K; Green, David

Description

The stability field of pargasitic amphibole in a model mantle composition (MORB pyrolite) has been experimentally determined for a fixed water content. A solidus for a pargasite-bearing lherzolite has been defined at pressures below the limit of amphibole stability of 30 kbar at T = 925 °C. The maximum temperature for pargasitic amphibole in MORB pyrolite occurs at 1075 °C between P = 18 and 25 kbar. This maximum lies between that determined for a fertile peridotite composition (Hawaiian...[Show more]

CollectionsANU Research Publications
Date published: 1999
Type: Journal article
URI: http://hdl.handle.net/1885/93918
Source: Contributions to Mineralogy and Petrology
DOI: 10.1007/s004100050495

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