This chapter is devoted to the carbon and nitrogen stable isotope compositions of terrestrial
diamonds with a strong focus on monocrystalline diamonds formed in Earth's mantle. The …

Ophiolites, which represent segments of oceanic lithosphere obducted onto the continental
crust, provide an important window into processes such as continental rifting, mantle …

Large peridotite massifs are scattered along the 1500 km length of the Yarlung–Zangbo
Suture Zone (southern Tibet, China), the major suture between Asia and Greater India …

Ophiolitic podiform chromitites from Phanerozoic orogens have been shown to preserve a
wealth of textures and inclusions that, in some way, trace earlier episodes of subduction and …

Oxygen fugacity (ƒO 2) controls the speciation of COH fluids in Earth's mantle; a major
question is whether the sublithospheric mantle is metal-saturated, maintaining ƒO 2 near the …

In recent years ophiolitic diamonds have been reported mostly from podiform chromitites.
However, the mechanism of such diamond formation remains unknown. We report in situ …

The discovery of diamonds in metamorphic rocks of continental affinities occurred shortly
after the discovery of coesite in similar rocks. These important discoveries led to a revolution …

Until recently it was accepted that ophiolites form at low pressure along intra-oceanic
spreading ridges (Lago et al., 1982; Zhou et al., 1996; Matveev and Ballhaus, 2002). The …

The minimum oxygen fugacity (f O2) of Earth's upper mantle probably is controlled by metal
saturation, as defined by the iron-wüstite (IW) buffer reaction (FeO→ Fe+ O). However, the …

Abstract The Pozanti-Karsanti ophiolite situated in the eastern Tauride belt, southern Turkey,
is a well-preserved oceanic lithosphere remnant comprising, in ascending order, mantle …