andalusite, kyanite and sillimanite occur in well-defined zones in the ardara aureole, nwireland. temperature and pressure conditions of the al2sio5-bearing pelites in this aureole wereestimated using ten different calibrations of garnet-biotite thermometry and five calibrations of garnetplagioclase-al2sio5-quartz barometry. the different calibrations provide different estimates oftemperature a...

the bundelkhand-aravalli craton is the most important lithotectonic unit in the central and western india where paleoproterozoic aravalli supracrustal sequence has been deposited over an archaean basement, the latter also known as the banded gneiss complex (bgc). a ne-trending linear metasedimentary sequence, designated as the jahazpur belt occurs along the eastern fringe of the aravalli superg...

In this study, data from garnet-kyanite metapelites in ultrahigh-pressure (UHP) domains of the Western Gneiss Region (WGR), Norway, are presented. U–Pb geochronology and trace element compositions zircon, monazite, apatite, rutile garnet were acquired, pressure–temperature (P–T) conditions calculated using mineral equilibria forward modelling Zr-in-rutile thermometry. Garnet-kyanite gneiss Ulst...

the protoliths of metamorphosed argillaceous rocks from the garmichay area in the east azerbaijan province of nw iran were clay-rich sediments of reworked nature, originating most likely from an andesite to andesite-basalt source and deposited in an active continental margin tectonic setting. the protoliths of the garmichay metapelites experienced low to moderate chemical weathering. andalusite...

The tectono-metamorphic evolution of the European Alps is still contentious. Monte Rosa tectonic unit a prominent nappe in Central and estimates its peak Alpine pressure (P) temperature (T) conditions are essential for reconstructing evolution. However, reported vary considerably between 1.2 2.7 GPa 490 640°C variety lithologies. Here, we show petrology pseudosection modelling metapelitic assem...