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Noble gases in the Finero phlogopite-peridotites, western Italian Alps

Matsumoto, Takuya; Morishita, Tomoaki; Matsuda, Jun-ichi; Fujioka, Toshiyuki; Takebe, Masamichi; Arai, Shoji


Here we report results from an investigation of noble gases in a specimen with layers of very fine-grained apatite and orthopyroxene from the Finero ultramafic complex, western Italian alps. We have also examined fresh olivine grains separated from phlogopite-harzburgites without an apatite layer. Fluid inclusions of these olivine separates appeared rich in radiogenic components such as4He,21Ne and40Ar, suggesting the derivation of fluids from a crust-like reservoir. Such a crust-like component...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2005.07.005


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