All Outputs (3)

Residual platinum-group minerals from highly depleted harzburgites of the Lherz massif (France) and their role in HSE fractionation of the mantle (2007)
Journal Article
Luguet, A., Shirey, S., Lorand, J., Horan, M., & Carlson, R. (2007). Residual platinum-group minerals from highly depleted harzburgites of the Lherz massif (France) and their role in HSE fractionation of the mantle. Geochimica et Cosmochimica Acta, 71(12), 3082-3097. https://doi.org/10.1016/j.gca.2007.04.011

In order to constrain the highly siderophile elements (HSE: Re and platinum group elements (PGE: Os, Ir, Ru, Pt and Pd)) host mineral(s) in refractory, base metal sulfide-free mantle residues, four very depleted spinel–harzburgites from the Lherz mas... Read More about Residual platinum-group minerals from highly depleted harzburgites of the Lherz massif (France) and their role in HSE fractionation of the mantle.

In-situ Os isotopes in abyssal peridotites bridge the isotopic gap between MORBs and their source mantle (2005)
Journal Article
Alard, O., Luguet, A., Pearson, N., Griffin, W., Lorand, J., Gannoun, A., …O’Reilly, S. (2005). In-situ Os isotopes in abyssal peridotites bridge the isotopic gap between MORBs and their source mantle. Nature, 436, 1005-1008. https://doi.org/10.1038/nature03902

Abyssal peridotites are assumed to represent the mantle residue of mid-ocean-ridge basalts (MORBs). However, the osmium isotopic compositions of abyssal peridotites and MORB do not appear to be in equilibrium1, 2, 3, 4, 5, 6, 7, 8, raising questions... Read More about In-situ Os isotopes in abyssal peridotites bridge the isotopic gap between MORBs and their source mantle.

Sulfide petrology and highly siderophile element geochemistry of abyssal peridotites: a coupled study of samples from the Kane Fracture Zone (45°23′N, MARK area, Atlantic Ocean) (2003)
Journal Article
Luguet, A., Lorand, J., & Seyler, M. (2003). Sulfide petrology and highly siderophile element geochemistry of abyssal peridotites: a coupled study of samples from the Kane Fracture Zone (45°23′N, MARK area, Atlantic Ocean). Geochimica et Cosmochimica Acta, 67(8), 1553-1570. https://doi.org/10.1016/s0016-7037%2802%2901133-x

Nineteen samples from the Kane Fracture Zone have been studied for sulfide mineralogy and analyzed for S, Se, platinum-group elements (PGE), and Au to assess the effect of refertilization processes on the PGE systematics of abyssal peridotites. The l... Read More about Sulfide petrology and highly siderophile element geochemistry of abyssal peridotites: a coupled study of samples from the Kane Fracture Zone (45°23′N, MARK area, Atlantic Ocean).