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High precision Hf isotope measurements of MORB and OIB by thermal ionisation mass spectrometry: insights into the depleted mantle
Thermal and chemical structure of the Iceland plume
Temperatures in ambient mantle and plumes: Constraints from basalts, picrites, and komatiites
Several methods have been developed to assess the thermal state of the mantle below oceanic ridges, islands, and plateaus, on the basis of the petrology and geochemistry of erupted lavas. One leads…
Isotopic variations with distance and time in the volcanic islands of the Cameroon line: evidence for a mantle plume origin
The north Atlantic igneous province
The North Atlantic Igneous Province extends from eastern Canada to the British Isles, a pre-drift distance of almost 2000 km. The igneous rocks are predominantly basaltic, but differentiates and…
Rift relocation — A geochemical and geochronological investigation of a palaeo-rift in northwest Iceland
The timing and extent of the eruption of the Siberian Traps large igneous province: Implications for the end-Permian environmental crisis
High 3He/4He ratios in picritic basalts from Baffin Island and the role of a mixed reservoir in mantle plumes
It is shown that olivine phenocrysts in picritic basalts presumably derived from the proto-Iceland plume at Baffin Island, Canada, have the highest magmatic 3He/4He ratios yet recorded, indicating that a 3He-recharged depleted mantle (HRDM) reservoir may be the principal source of high 3He /4He in mantle plumes.
The Role of Lithospheric Mantle in the Generation of Late Cenozoic Basic Magmas in the Western United States