Apparent decoupling of the He and Ne isotope systematics of the Icelandic mantle: The role of He depletion, melt mixing, degassing fractionation and air interaction

We present new He–Ne data for geothermal fluids and He–Ne–Ar data for basalts from throughout the Icelandic neovolcanic zones and older parts of the Icelandic crust. Geothermal fluids, subglacial glasses, and mafic phenocrysts are characterized by a wide range in helium isotope ratios ( 3He/ 4He) en...

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Veröffentlicht in:	Geochimica et cosmochimica acta 2010-06, Vol.74 (11), p.3307-3332
Hauptverfasser:	Füri, Evelyn, Hilton, D.R., Halldórsson, S.A., Barry, P.H., Hahm, D., Fischer, T.P., Grönvold, K.
Format:	Artikel
Sprache:	eng
Schlagworte:	Depletion Fluid dynamics Fluid flow Fluids Geothermal Glass Mantle Neon
Online-Zugang:	Volltext
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