Figure 2
From: Quaternary low-temperature serpentinization and carbonation in the New Caledonia ophiolite
Optical and SEM images of the GR2H sample. (a) Optical image (reflected mode) of the carbonate veins mainly composed of dolomite, serpentine and magnetite (GR2H); (b) SEM image (BSE mode) showing an example of veinlet mineralization. Euhedral magnetite grains are visible in the core of the vein along with dolomite and Fe-poor lizardite; (c) SEM image (BSE mode) of another veinlet including an olivine grain with pronounced dissolution features (etch pits); (d) blow-up of the olivine grain from the veinlet displayed in (c)—Lz, Fe-poor lizardite; Lz(Fe), Fe-bearing lizardite; Dol, dolomite, and Ol, olivine. Magnetite (Mag) in mesh, spinel grains (Spl) and olivine etch-pits are highlighted by arrowheads.
