none 10.1144/GSL.SP.2000.170.01.17 Geological Society of London Geological Society of London 1881 32634715 65091 2024072306082800472 10.1144 2024-07-23T15:08:00Z 2008-04-30T14:36:18Z 19 Geological Society, London, Special Publications SP 0305-8719 2041-4927 05 16 2007 01 2000 170 1 H. Yamamoto Department of Earth and Environmental Sciences, Faculty of Science, Kagoshima University Korimoto 1-21-35, Kagoshima 890-0065, Japan E. Nakamura The Pheasant Memorial Laboratory for Geochemistry &amp; Cosmochemistry, Institute for Study of the Earth’s Interior, Okayama University at Misasa Tottori-ken 682-0193, Japan Abstract Mafic to ultramafic granulites in the northeastern part of the Jijal complex include two-pyroxene granulite, garnet-clinopyroxene granulite and garnet hornblendite. Field and textural relations indicate that two-pyroxene granulite is a relict left after formation of the garnet-clinopyroxene granulite and garnet hornblendite was an originally intrusive rock which dissected the protoliths of mafic granulites. Sm-Nd mineral isochron ages of 118 ± 12 Ma, 94.0 ± 4.7 Ma and 83 ± 10 Ma were determined for two-pyroxene granulite, garnet-clinopyroxene granulite and garnet hornblendite respectively. These ages, together with previously reported chronological data, led to the following tectonic implications: (1) crystallization of the granulite protoliths predates, or is coeval with, the tectonic accretion of the Kohistan arc to the Asian continent; (2) crustal thickening related to the accretion was probably responsible for the high-pressure granulite-facies metamorphism in the Jijal complex; (3) formation of the garnet hornblendite assemblage was probably after crystallization of garnet-clinopyroxene granulite. 05 23 2000 01 2000 313 319 10.1144/GSL.SP.2000.170.01.17 https://doi.org/10.15223/policy-002 10.1144/GSL.SP.2000.170.01.17 https://www.lyellcollection.org/doi/10.1144/GSL.SP.2000.170.01.17 https://www.lyellcollection.org/doi/pdf/10.1144/GSL.SP.2000.170.01.17 https://pubs.geoscienceworld.org/UrlRedirectHandler.ashx?routename=books&chapterdoi=10.1144/GSL.SP.2000.170.01.17&request=chapter Terra Nova Anczkiewicz R. 345 9 1997 Chronology of subduction, collision and regional metamorphism in Kohistan, Pakistan Himalaya Anczkiewicz R., Vance D. Chronology of subduction, collision and regional metamorphism in Kohistan, Pakistan Himalaya Terra Nova 1997 9 345 10.1016/0012-821X(83)90195-4 10.1007/BF00375181 Geological Society, London, Special Publications Collision Tectonics Coward M. P. 203 1986 Coward M. P., Windley B. F., Broughton R. D. 5 OTHERS , Coward M. P., Ries A. C. Collision tectonics in the NW Himalayas Collision Tectonics 1986 19 203 219 Geological Society, London, Special Publications 10.1144/gsjgs.144.3.0377 10.1007/978-3-642-74826-4 10.1130/0091-7613(1995)023<0225:ROIMIG>2.3.CO;2 10.1016/0016-7037(88)90282-7 10.1093/petrology/22.1.85 Special Issue Geological Bulletin, University of Peshawar Kausar A. B. 91 31 1998 Evidence for High-Temperature-Pressure crystallization during early magmatism of the Kohistan arc, Northern Pakistan Kausar A. B., Picard C., Guillot S. Evidence for High-Temperature-Pressure crystallization during early magmatism of the Kohistan arc, Northern Pakistan Special Issue Geological Bulletin, University of Peshawar 1998 31 91 92 10.1016/0168-9622(91)90045-X United States Geological Survey, Open-File Report ISOPLOT, a plotting and regression program for radiogenic-isotope data, ver. 2.75 Ludwig K. R. 1994 Ludwig K. R. ISOPLOT, a plotting and regression program for radiogenic-isotope data, ver. 2.75 1994 91–445 United States Geological Survey, Open-File Report 10.1016/0012-821X(78)90021-3 10.1016/S0009-2541(10)80022-1 10.2113/gsecongeo.86.5.1093 10.1016/0012-821X(85)90165-7 10.1017/S0016756800033501 Special Issue Geological Bulletin, University of Peshawar Ringuette L. 167 31 1998 Pressure-Temperature evolution of garnet-bearing rocks from the Jijal complex (western Himalayas, northern Pakistan): from high-pressure cooling to decompression and hydration of a magmatic arc Ringuette L., Martignole J., Windley B. F. Pressure-Temperature evolution of garnet-bearing rocks from the Jijal complex (western Himalayas, northern Pakistan): from high-pressure cooling to decompression and hydration of a magmatic arc Special Issue Geological Bulletin, University of Peshawar 1998 31 167 168 10.1016/0016-7037(84)90329-6 Geodynamics of Pakistan Tahirkheli R. A. K. 125 1979 Tahirkheli R. A. K., Mattauer M., Proust F., Tapponnier P. , Farah A., DeJong K. A. The India Eurasia suture zone in northern Pakistan: synthesis and interpretation of recent data at plate scale Geodynamics of Pakistan 1979 Quetta Geological Survey of Pakistan 125 130 10.1029/TC008i004p00881 10.1144/gsjgs.150.5.0843 10.1144/gsjgs.153.6.0965 10.1016/S0024-4937(98)00014-0 10.1016/S0012-821X(68)80059-7