Helium abundances and isotopic ratios have been measured in samples of geothermal gases, submarine ultramafic xenoliths, and subaerial mafic phenocrysts and xenoliths from the Tabar-LihirTanga-Feni (TLTF) arc in the Bismarck Archipelago of Papua New Guinea. These unusual volcanoes are produced by adiabatic decompression melting of subduction-modified upper mantle and apparently carry an exceptionally large slab-derived component. They, therefore, provide an ideal setting for studying the role of subducted helium in arc volcanoes. Helium isotopic ratios in the geothermal fluids, submarine xenoliths, and most helium-rich subaerial samples indicate the mantle source regions beneath the Tabar Island Group and Lihir Island have ^3He/^4He ratios ...
The SiO2-undersaturated lavas from Lihir island, Papua New Guinea, like most arc lavas are highly en...
Copyrighted by American Geophysical Union.We have measured ³He/⁴He ratios and He and Ne concentratio...
[1] This paper presents new magmatic helium isotopic compositions in a suite of lavas from phase II ...
Helium abundances and isotopic ratios have been measured in samples of geothermal gases, submarine u...
Helium isotope data have been obtained on well-characterised olivine and clinopyroxene phenocrysts a...
In order to investigate the behavior of slab-derived volatiles in the subduction environment, heliu...
We report the first helium isotope survey of volcanic gases, hot springs and some olivine phenocryst...
In an attempt to determine the helium and neon isotopic composition of the lower oceanic crust, we r...
The isotopic compositions of He and Sr have been obtained for suites of ultramafic xenoliths brought...
We report the first helium isotope survey of volcanic gases, hot springs and some olivine phenocryst...
International audienceThe first isotopic data and concentrations of helium are reported for the Paci...
We measured noble gas isotopic compositions of quenched lavas sampled from seamounts, so-called peti...
We present isotopic analyses of helium in fluids collected during two field trips at Satsuma-Iwojima...
A noble gas isotopic study of xenoliths, basalts and CO2 fluids from the Cameroon line volcanic chai...
We report new helium abundance and isotope results for submarine basaltic glasses from the Central I...
The SiO2-undersaturated lavas from Lihir island, Papua New Guinea, like most arc lavas are highly en...
Copyrighted by American Geophysical Union.We have measured ³He/⁴He ratios and He and Ne concentratio...
[1] This paper presents new magmatic helium isotopic compositions in a suite of lavas from phase II ...
Helium abundances and isotopic ratios have been measured in samples of geothermal gases, submarine u...
Helium isotope data have been obtained on well-characterised olivine and clinopyroxene phenocrysts a...
In order to investigate the behavior of slab-derived volatiles in the subduction environment, heliu...
We report the first helium isotope survey of volcanic gases, hot springs and some olivine phenocryst...
In an attempt to determine the helium and neon isotopic composition of the lower oceanic crust, we r...
The isotopic compositions of He and Sr have been obtained for suites of ultramafic xenoliths brought...
We report the first helium isotope survey of volcanic gases, hot springs and some olivine phenocryst...
International audienceThe first isotopic data and concentrations of helium are reported for the Paci...
We measured noble gas isotopic compositions of quenched lavas sampled from seamounts, so-called peti...
We present isotopic analyses of helium in fluids collected during two field trips at Satsuma-Iwojima...
A noble gas isotopic study of xenoliths, basalts and CO2 fluids from the Cameroon line volcanic chai...
We report new helium abundance and isotope results for submarine basaltic glasses from the Central I...
The SiO2-undersaturated lavas from Lihir island, Papua New Guinea, like most arc lavas are highly en...
Copyrighted by American Geophysical Union.We have measured ³He/⁴He ratios and He and Ne concentratio...
[1] This paper presents new magmatic helium isotopic compositions in a suite of lavas from phase II ...