TY - JOUR ID - 53911 TI - Geothermometry and Geobarometry of Metamorphic Rocks of Dehnow (Northwest of Mashhad) JO - Scientific Quarterly Journal of Geosciences JA - GSJ LA - en SN - 1023-7429 AU - Samadi, Ramin AU - Valizadeh, M. V. AU - Mirnejad, H. AU - Kawabata, H. AD - Dept. of Geology, Science and Research Branch, Islamic Azad University, Tehran, Iran AD - Faculty of Science, College of Geology, University of Tehran, Tehran, Iran AD - Institute for Research on Earth Evolutions (IFREE), Japan Agency for Marine -Earth Science and Technology (JAMSTEC), Yokosuka, Japan Y1 - 2012 PY - 2012 VL - 21 IS - 84 SP - 3 EP - 14 KW - Schist KW - Geothermometry KW - Geobarometry KW - Dehnow KW - Mashhad DO - 10.22071/gsj.2012.53911 N2 - Metamorphic rocks of Dehnow area mainly consist of gray to black fine-grained schists. Garnet schists are closer to the tonalitic body than the garnet chloritoid schists. There is a thin layer of staurolite and andalusite bearing hornfels between these schists and the Dehnow tonalitic body. Garnet schists and garnet chloritoid schists of Dehnow area are mineralogically comprised of quartz, biotite, muscovite, garnet, chlorite, chloritoid, tourmaline and ilmenite. Geothermobarometry results indicate that hornfels (550oC, 4.3 kbar) and garnet chloritoid schist (486-497oC) have formed in lower equilibrium condition in comparison with garnet schist (569oC, 5.3 kbar).   UR - http://www.gsjournal.ir/article_53911.html L1 - http://www.gsjournal.ir/article_53911_3d5c4172b0bdfde0adf2b000569e7917.pdf ER -