The Andaman and Nicobar ophiolites, in the forearc of western Sunda subduction zone, underwent enigmatic, rapid Cenozoic vertical motions: shallow-water sediments with abundant arc debris characterize middle Paleocene–middle Eocene are under- overlain by significantly deeper sediments. Recent paleomagnetic results revealed a near-equatorial paleolatitude West Burma Block associated at similar l...

The northern Oman margin is a key area for understanding the emplacement of Semail Ophiolite and obduction processes in general. This study uses grid 2D-multichannel seismic lines tied to well data characterize offshore domain reappraises post-obduction history margin. West Muscat, Sohar basin, late Cretaceous Paleogene tectonic mega-sequence records syn- late-obduction stages deposition erosio...

Post-collision Pliocene-Quaternary basaltic rocks outcrop in the Kerman Cenozoic Magmatic Arc (KCMA) to northwest and east of Shahr-e-Babak city. These porphyritic vesicular are composed essentially clinopyroxene, olivine, plagioclase. basalts display alkaline affinity negative Ta, Zr, Rb anomaly, but slightly Nb relative elements with similar compatibility, positive Ba, K, Sr suggesting their ...

Plate reconstruction studies show that the Neotethys Ocean was closing due to convergence of Africa and Eurasia toward end Cretaceous. The period around 75 Ma reflects onset continental collision between two plates as continued be taken up mostly by subduction slab beneath Eurasia. Owen transform plate boundary in northeast accommodated fast northward motion Indian relative African plate. rest ...

Abstract Events in the tectono-magmatic framework of Eocene Bulfat Igneous Complex Kurdistan region northeastern Iraq are revealed through integrated field, petrographic, geochemical and zircon petrography U–Pb geochronology Qaladeza trondhjemite sheets that cut gabbros complex. The variably deformed, with cataclasis large plagioclase feldspars. trondhjemites albitic, features such as strong en...

Abstract The 350 km-long Adjara-Trialeti fold-and-thrust belt of southwestern Georgia is the result structural inversion a continental back-arc basin developed in Paleogene on upper (Eurasian) plate northward subducting northern branch Neotethys. Low-temperature thermochronological data [fission-track and (U-Th)/He analyses apatite] from sedimentary plutonic rocks provide robust constraints tec...

Abstract The 1,500-km-long Banatitic Magmatic and Metallogenetic Belt (BMMB) of Romania, Serbia and Bulgaria is a complex calc-alkaline magmatic arc of Late Cretaceous age. It hosts a variety of magmatic-hydrothermal Cu, Au, Mo, Zn, Pb and Fe deposits, including Europe’s only world-class porphyry-copper deposits. Regional metallogeny can be linked to subduction of the Vardar Ocean during the La...

The classic Neotethyan Ankara Melange formed within the Triassic-Eocene İzmir-Ankara-Erzincan ocean (‘N Neotethys’), bordered in central Anatolia by Kırşehir and Tauride-Anatolide continental units to south discontinuous Sakarya continent northwest. Farther north, separate Intra-Pontide probably remained partly open until early Cenozoic. developed via phases of intra-oceanic accretion (mainly p...