In the Tethyan realm, leucocratic rocks were recognized as dikes and layers outcropping in ophiolitic of Western Alps, Corsica, Northern Apennines. Several authors have suggested that origin is associated with partial melting cumulate gabbro. Major trace elements composition paragenesis provided information about genetic processes. This research aims at disclosing, for first time, petrographica...

During the Late Paleozoic to Cenozoic, with closure of Tethys oceans, East and/or Southeast Asia was amalgamated by individual blocks. In order understand Paleogeography Eastern Paleo-Tethys, a systematic UPb dating on 11 samples have conducted constrain age and provenance elements forming Ailaoshan-Song Ma mélange. These consist ophiolitic mélange zone (6 samples), sedimentary cover Indochina ...

The Clarke River Fault in northeast Queensland records an early Paleozoic history of subduction, accretion and continental suturing. Samples mafic–ultramafic rocks collected proximal to the record oceanic geochemical affinities comprise alteration assemblages consistent with ophiolitic origin. ca 456 Ma Falls Creek Tonalite a continental-arc signature was formed response long-lived subduction b...

The Kab Amiri area in the Central Eastern Desert (CED) of Egypt comprises ophiolitic rocks, island arc metasediments, and granitic rocks. This study deals with petrography geochemistry rocks to understand their petrogenesis geodynamic evolution CED belt. ophiolite is dismembered, comprising serpentinites metabasalt (spilite). Serpentinites have low contents Al2O3 (1.14 wt%) CaO (0.65 wt%), sugg...

We describe a potentially new species of platinum cupride–stannide mineral (PCSM) composition Pt(Cu0.67Sn0.33). It occurs in placer deposit the River Bolshoy Khailyk, southern Krasnoyarskiy kray, Russia. A synthetic equivalent PCSM was obtained and characterized. The as anhedral or subhedral grains up to 15 μm × 30 association with various platinum-group minerals, Rh–Co-rich pentlandite magneti...