The Tauride Belt Ophiolites in southern Turkey are located on both sides of the E–Wtrending, Mesozoic Tauride carbonate platform. They comprise the Lycian, Antalya, Beyşehir, Mersin, Alihoca and Pozantı-Karsantı ophiolites from west to east. Each ophiolite has a metamorphic rock unit either at the base of the peridotites or in the mélange units. The metamorphic sole rocks generally consist of a...

Papua New Guinea (PNG) is located at the convergence edge of Pacific Plate and Indo-Australian Plate, consisting three units. There are chromium mineralization types in PNG. Based on national-scale geochemical mapping PNG during 2015–2018, 1399 samples stream sediments were collected from Highland Region, Peninsula, Islands. This paper preliminarily studied chromium’s background, spatial distri...

Abstract Accurate lithostratigraphy framework of the Central Qilian belt is key to understand subduction-collision Proto-Tethyan Ocean in NE Tibetan Plateau. The Dongchagou and Moshigou formations share similar detrital zircon age populations with youngest peak at ca. 1.15–1.21 Ga, which consistent granitoid gneiss Liujiatai Formation. In combination rock assemblages, metamorphic facies, associ...

The claim by Furnes et al. (Reports, 23 March 2007, p. 1704) that Greenland metavolcanic rocks require Paleoarchean sea-floor spreading is incompatible with their own data. The purported sheeted dikes have the composition of pyroxenitic komatiite and could not have fed the adjacent ferroandesitic pillow lavas. Neither type has ophiolitic analogs, and both are likely ensialic.

The E-W oriented Sivas foreland basin in Turkey recorded a salinity crisis during the Late Eocene resulting evaporite accumulations thick enough to trigger intense halokinesis Oligo-Miocene. is studied thanks three sedimentological sections crossing transition from last marine deposits (Bözbel Formation) overlying evaporitic facies (Tuzhisar preserved halokinetic deformations. top of Bözbel For...

The existence of pieces the Variscan belt in Alpine basement has been acknowledged for a long time but correlation these massifs to litho-tectonic domains established Western Europa outside chain is still disputed. Due their ubiquitous character, abundant late migmatites and granites are useless reconstruct architecture basement. Ophiolitic sutures, high- low-grade metamorphic units, foreland b...

The discovery of ultrahigh pressure (UHP) minerals in orogenic belts has revolutionized our understanding subduction and the return flow previously deeply subducted material to Earth's surface as part cycling interaction crustal mantle systems. One class UHP is found inclusions peridotite-hosted podiform-chromite systems, within Phanerozoic ophiolites ophiolitic mélanges. Such have opened a win...

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...