Helium isotopes have been measured in fluorite and sulphides from fluorite-rich Mississippi Valley-type (MVT) deposits from Asturias, Spain, in order to assess the involvement of mantle and crust-derived volatiles in the genesis of the deposits. The 3He/4He of the ore fluids are ≤0.1 Ra ruling out a contribution of mantle-derived magmatic helium in the inclusion fluids. Data support a crustal source for the volatiles and is consistent with the existing basinal model for the genesis of the Asturias MVT mineralization by mixing of sedimentary brines with infiltrating superficial fluids
Fluorite deposits in Asturias (Iberian Peninsula, N Spain) are hosted in Permo-Triassic and Paleozoi...
Helium isotope analyses of ground waters from the Mirror Lake drainage basin in central New Hampshi...
International audienceThe 3He/4He ratio and helium concentration have been measured in the vent flui...
Helium isotopes have been measured in fluorite and sulphides from fluorite-rich Mississippi Valley-t...
We have analyzed by single-step crushing helium and argon isotopes in olivine and orthopyroxene from...
We have analyzed by single-step crushing helium and argon isotopes in olivine and orthopyroxene from...
Helium isotopes have been measured in fluorite and sulphides in order to obtain conclusive means of ...
In this work we report new data on He abundances and isotope ratios (3He/4He) from gas associated t...
We present noble gas concentrations and helium isotope ratios measured in the pore fluids of two dee...
An extensive study of helium isotopes in fluids collected from surface springs, fumaroles and wells...
An extensive study of helium isotopes in fluids collected from surface springs, fumaroles and wells...
The Basin and Range (BR), a major tectonic province of the western margin of the North American plat...
An extensive study of helium isotopes in fluids collectedfrom surface springs, fumaroles and wells a...
An extensive study of helium isotopes in fluids collectedfrom surface springs, fumaroles and wells a...
The South Pennine (Peak district) ore field, United Kingdom, is host to several fluorite-rich Missis...
Fluorite deposits in Asturias (Iberian Peninsula, N Spain) are hosted in Permo-Triassic and Paleozoi...
Helium isotope analyses of ground waters from the Mirror Lake drainage basin in central New Hampshi...
International audienceThe 3He/4He ratio and helium concentration have been measured in the vent flui...
Helium isotopes have been measured in fluorite and sulphides from fluorite-rich Mississippi Valley-t...
We have analyzed by single-step crushing helium and argon isotopes in olivine and orthopyroxene from...
We have analyzed by single-step crushing helium and argon isotopes in olivine and orthopyroxene from...
Helium isotopes have been measured in fluorite and sulphides in order to obtain conclusive means of ...
In this work we report new data on He abundances and isotope ratios (3He/4He) from gas associated t...
We present noble gas concentrations and helium isotope ratios measured in the pore fluids of two dee...
An extensive study of helium isotopes in fluids collected from surface springs, fumaroles and wells...
An extensive study of helium isotopes in fluids collected from surface springs, fumaroles and wells...
The Basin and Range (BR), a major tectonic province of the western margin of the North American plat...
An extensive study of helium isotopes in fluids collectedfrom surface springs, fumaroles and wells a...
An extensive study of helium isotopes in fluids collectedfrom surface springs, fumaroles and wells a...
The South Pennine (Peak district) ore field, United Kingdom, is host to several fluorite-rich Missis...
Fluorite deposits in Asturias (Iberian Peninsula, N Spain) are hosted in Permo-Triassic and Paleozoi...
Helium isotope analyses of ground waters from the Mirror Lake drainage basin in central New Hampshi...
International audienceThe 3He/4He ratio and helium concentration have been measured in the vent flui...