Fig. 2
From: Bio-mediated CN cycling in serpentinites and the origin of life
(left) Backscattered Electron (BSE) image of the area of work (aow) 1 (a,b), 2 (c,d) and 3 (e,f). Images (b,d,e) are zoom-ins of the blue rectangle in (a,c,e), respectively. Magnetite (Mt) replaces pentlandite (Pn), forming veins and mesh textures. The chalcopyrite (Cpy) and secondary Mt embeds the copper grains (Cu, orange open circle and arrow); (right) Time of flight-secondary ion mass spectroscopy (ToF-SIMS) ion maps of the aow 1 (A,B), 2 (C,D) and 3 (E,F). Cu– is shown in (A,C,E), while CN– is in (B,D,F).
