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...

The Meatiq basement, which is exposed beneath late Proterozoic nappes of supracrustal rocks in the Central Eastern Desert of Egypt, was affected by three metamorphic events. The ophiolite cover nappes show only the last metamorphic overprint. The M1 metamorphic event (T≥750 °C) is restricted to migmatized amphibolite xenoliths within the Um Ba∞anib orthogneiss in the structurally lowest parts o...

Relevance. When mapping the vast areas of Precambrian polymetamorphic complexes in North Yenisei Ridge, there is a problem metamorphism interpretation and phasing geological development particular area along with thrust tectonics. The solution these issues also great importance for purposes delineation metamorphic rocks that are favorable detection high-alumina (andalusite, kyanite, sillimanite...