Noble gases in the Finero phlogopite-peridotites, western Italian Alps
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]
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|Source:||Earth and Planetary Science Letters|
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