Noble gas isotope systematics, particular those of He, have been fundamental in showing
that some ocean island basalts (OIB) were sourced from deep mantle plumes. Relationships …

The observation that many lavas associated with mantle plumes have higher 3He/4He ratios
than the upper convecting mantle underpins geophysical, geodynamic and geochemical …

Noble gases are frequently probed for investigating fluid inclusions in minerals to unravel
rock‐forming processes through time. Over the last decades, heating and crushing have …

X-ray micro-computed tomography (μCT) was applied upon selected ophiolitic rock samples
from various localities of the Vardar ophiolite outcrops in North Greece. Effectiveness of the …

Abstract Consistent 3He/4He ratios have been measured for> 25 years in geothermal fluids
and gases from Cumbre Vieja, La Palma (9.4±0.1 RA, where RA is the 3He/4He of air), and …

Basalts erupted within intra-transform spreading centers can be valuable probes of
geochemical components in Earth's upper mantle, and provide constraints on the …

Abstract We measured He and Ar in fresh peridotites from the Twin Sisters massif,
Washington USA. 3 He/4 He ratios measured on> 35 samples are highly variable (∼ 0.8 …

Paleocene basaltic lavas exposed on Baffin Island have the highest 3 He/4 He found in any
terrestrial igneous rocks and potentially contain the most pristine primordial mantle material …

Dating submarine basalts using 40Ar/39Ar geochronology is often hindered by a lack of
potassium‐bearing phenocrystic phases and severe alteration in the groundmass …

We present a step-heat method for isolating cosmogenic 3 He (3 He c) from mantle He in
olivine xenocrysts to date the eruption of very young nephelinites from Volcano Mountain …