Pillows lavas of the Monte Viso

Foliations Metamorphic rocks Primary structures, sedimentary, magmatic rocks

Monte Viso is a portion of the ligurian oceanic crust subducted at more than 2 GPa. At the bottom of the mountain, blue pillows lavas are
undeformed.The blue color is due to fine needles of glaucophane. PhotoID307

Photograph: c.nicollet

Reference: http://christian.nicollet.free.fr/page/Alpes/Viso/viso.html