Abstract High-grade metamorphic rocks and crustal melts provide crucial evidence for growth differentiation of the continental crust, are widespread in collisional orogens. However, their importance evolution arcs remains poorly understood. Metamorphism related anatexis preserved margin Neo-Tethys ocean serves as a key natural laboratory to investigate this process. Along Neo-Tethyan arc margin...

U-Th zircon SHRIMP and U-Th-total Pb monazite CHIME ages of 6 typical samples were established among different rock types outcropped into the Chah-Dozdan batholith from Iran. The zircon population displays simple internal structures in samples of the Chah-Dozdan batholith. The zircon crystals have well-preserved magmatic characteristics. In all population, the rims display younger ages than the...

Palaeoproterozoic fold-thrust belt structures and steep, lateral shear zones characterize the foreland deformation of Neoarchaean basement tonalites in Vanna, West Troms Basement Complex, northern Norway. Low-grade par-autochthonous allochthonous cover units (2.4–2.2. Ga) with sandstones calcareous metapelites exist separate areas foreland. They were formed as intracontinental rift- and/or delt...

Cathodoluminescence (CL) images of kyanite reveal several internal textures, including sector zoning, oscillatory and cross-cutting relationships among different domains. Many textures observed in correspond to discrete events, thereby connecting the pressure–temperature (P–T) history rock. To evaluate record metamorphism preserved by kyanite, metapelites were selected from three orogens that r...