Fig. 2: Field pictures of Zermatt-Saas meta-serpentinites and veins.
From: Decoupling of inorganic and organic carbon during slab mantle devolatilisation
a Meta-serpentinite showing a dense and anastomosed network of brown metamorphic veins, made of olivine (Ol), diopside (Di), chlorite (Chl), and magnetite (Mag) (sample ZE17-18: host meta-serpentinites) contemporaneous of the main deformation D2. b Sample Trock16-12 showing a pluri centimetric vein filled with cm size calcite grain in an olivine (brown) matrix. Late lizardite overgrowing the vein (light green patch below the coin) c Brecciated veins made of Ti-Clinohumite (TiChu), Ol, and calcite with fibrous Di; forming millimeter to centimeter blade. d Sample 11, showing coalescing lath (dendrite) and haloes (spherolite) of olivine (retromorphosed to Serp.) and chlorites in a black matrix made of Atg. e Ol-TiChu-Cal vein dissected and boudinaged by a late D3 deformation. White arrow points to fibrous chrysotile growing in the boudin’s neck. f Tension gashes made of talc (Tc) and calcite (Sample ZE17-09) crosscutting the main serpentinite fabric.
