Skip to main content
Fig. 6 | Swiss Journal of Geosciences

Fig. 6

From: Metamorphic gabbro and basalt in ophiolitic and continental nappes of the Zermatt region (Western Alps)

Fig. 6

Photomicrographs of Matterhorn gabbro. a) Olivine and augite (Cpx) gabbro with unaltered plagioclase. Thin Opx reaction rims along grain boundaries; b) Augite and plagioclase in typical Matterhorn gabbro (KB1381). Pl is strongly altered to saussurite (Ab + Clz), Cpx altered to Chl + Amp by low-temperature reaction with aqueous fluids that migrated along veins (e.g. red dashed line)

Back to article page