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Filtering by: Mantle heterogeneity Creator Albarede, Francis

Helium isotopic textures in Earth’s upper mantle

Creator:

Graham, David W., Hanan, Barry B., Hémond, Christophe, Blichert-Toft, Janne, and Albaréde, Francis

Abstract:

We report ³He/⁴He for 150 mid-ocean ridge basalt (MORB) glasses from the Southeast Indian Ridge (SEIR). Between 81°E and 101°E ³He/⁴He varies from 7.5 to 10.2 R[subscript A], encompassing more than half the MORB range away from ocean island hot spots. Abrupt transitions are present and in one case the...

Resource Type:

Article
GrahamDavidCEOASHeliumIsotopicTextures.pdf

Creator:

Graham, David W., Hanan, Barry B., Hémond, Christophe, Blichert-Toft, Janne, and Albaréde, Francis

Abstract:

We report ³He/⁴He for 150 mid-ocean ridge basalt (MORB) glasses from the Southeast Indian Ridge (SEIR). Between 81°E and 101°E ³He/⁴He varies from 7.5 to 10.2 R[subscript A], encompassing more than half the MORB range away from ocean island hot spots. Abrupt transitions are present and in one case the...

Full Text:

heterogeneity or to lateral variations in mantle temperature are further revealed by the relations between
GrahamDavidCEOASHeliumIsotopicTextures_AuxiliaryMaterial.zip

Creator:

Graham, David W., Hanan, Barry B., Hémond, Christophe, Blichert-Toft, Janne, and Albaréde, Francis

Abstract:

We report ³He/⁴He for 150 mid-ocean ridge basalt (MORB) glasses from the Southeast Indian Ridge (SEIR). Between 81°E and 101°E ³He/⁴He varies from 7.5 to 10.2 R[subscript A], encompassing more than half the MORB range away from ocean island hot spots. Abrupt transitions are present and in one case the...