Triassic eclogite and blueschist facies rocks occur as a thrust sheet, 25-km long and over 2-km thick, in an Eocene fold-andthrust belt in northwest Turkey along the İzmir–Ankara suture. The thrust sheet consists mainly of metabasites with minor marble, phyllite and metachert, and rare lenses of serpentinite. The common blueschist facies mineral assemblage in the metabasites is sodic amphibole ...

In Holsnøy (Bergen Arcs, Norway), metastable granulite facies anorthosite rocks are partially eclogitised within hydrous shear zones, that have been interpreted as widening over time with fluid influx and strain. We here present a detailed petrological description of two different metre-scale zones from this area. Within few tens centimetres each zone, the protolith (initially plagioclase + gar...

Abstract This study describes mineralogical and crystallochemical characteristics of metamorphic tourmalines from an Alpine shear zone in a Variscan rock sequence the Maramures region northern part East Carpathians. We use this mineral to unravel aspects evolution tourmaline bearing host rocks compare crystallo-chemical other Alps. Petrographic microstructural observations, as well electron mic...

Understanding mass transfer associated with fluids circulation and deformation in the Alpine orogeny is often complex due to common multistage crystallization. For example, two emblematic historic Pb-Ag deposits of French Alps, Macôt-la Plagne (MP) Peisey-Nancroix (PN), a sedimentary or orogenic origin still debated. To discriminate between metallogenic models deposits, an integrative methodolo...

Needle-shaped rutile inclusions occur in garnet within the quartz-eclogite at Mt. Gongen Sanbagawa belt, central Shikoku. They are approximately 5–25 µm along long axis and typically oriented three directions, each intersecting 120°. This indicates that needle-shaped is a lamella exsolved from garnet. Garnet with needle-rutile restricted to quartz-poor domain of quartz eclogite sample, which co...