Studies of the high-pressure (HP) As Sifah eclogites in NE Saih Hatat Window, Oman, have used different combinations radiometric dating results (Ar/Ar, Sm-Nd vs. U-Pb, Rb-Sr) to interpret disparate tectonic models for timing, geometry, and cause continental subduction—including its relationship Samail Ophiolite. To determine timing subduction, we coupled petrochronological analyses major (garne...

The Spontang Ophiolite complex represents the most complete ophiolite sequence amongst South Ladakh ophiolites and comprises mantle rocks (depleted harzburgites, dunites minor lherzolites) as well crustal (basalt, isotropic gabbros, layered gabbros etc.). In present study, detailed geochemistry (whole rock mineral chemistry) Sr-Nd isotopic analyses of thirty-six ultramafic- mafic samples have b...

Abstract Recognition of any intra-oceanic arc-trench system (IOAS) could provide invaluable information on the tectonic framework and geodynamic evolution vanished ocean basin. The Tanjianshan Complex mafic-ultramafic rocks along North Qaidam ultra-high pressure metamorphic belt in NW China record subduction process Proto-Tethyan Ocean. Four lithotectonic units, including island arc, ophiolite,...

The Kızıldağ (Hatay) ophiolite in southern Turkey represents a complete, although fault-dissected, remnant of oceanic lithosphere that formed within the South Tethyan ocean during late Cretaceous. forms part Upper Cretaceous belt which includes Troodos (Cyprus), Baer-Bassit (Syria), Amanos (S Tukey), S Iran and Semail (Oman) ophiolites. Ion-probe (SIMS) dating seven samples crustal rocks (cumul...

Mantle-melt evolution processes in the earliest stage of subduction initiation (SI) are still ambiguous. Here, we report systematic petrogeochemical and physical records SI demonstrated by Gomsiqe massif, Mirdita ophiolite. The ultramafic body consists basal lherzolites, upper harzburgites containing lentoid dunites disseminated chromitites, displaying transition petrological (Cr# spinels range...

Fluid-rock interaction in ultramafic rocks considerably affects the chemical and isotopic composition of oceanic lithosphere. We present a geochemical petrological study serpentinites ophicalcites Northern Apennine ophiolite, Italy. This ophiolite sequence represents fragments Jurassic lithosphere that have been denuded by low angle detachment faults, exposing peridotites on ocean floor trigger...

The Po-Adriatic region offers an excellent case for reconstructing sediment provenance and transport pathways of a multi-sourced sediment-routing system. Through comprehensive set ∼1400 geochemical data, model flux was built based on distinct compositional fingerprints 53 fluvial systems their comparison to coastal, shelf deep-marine sediments. Geochemically unique catchment lithologies (mafic/...