caa a22 4500 467889953 CHVBK 20180406152746.0 cr unu---uuuuu 170328e20060901xx s 000 0 eng 10.1007/s00710-006-0156-2 doi (NATIONALLICENCE)springer-10.1007/s00710-006-0156-2 Protolith and metamorphic ages of the Haiyangsuo Complex, eastern China: a non-UHP exotic tectonic slab in the Sulu ultrahigh-pressure terrane [Elektronische Daten] [J. G. Liou, T. Tsujimori, W. Chu, R. Y. Zhang, J. L. Wooden] Summary: The Haiyangsuo Complex in the NE Sulu ultrahigh-pressure (UHP) terrane has discontinuous, coastal exposures of Late Archean gneiss with amphibolitized granulite, amphibolite, Paleoproterozoic metagabbroic intrusives, and Cretaceous granitic dikes over an area of about 15 km2. The U-Pb SHRIMP dating of zircons indicates that theprotolith age of a garnet-biotite gneiss is >2500 Ma, whereas the granulite-facie metamorphism occurred at around 1800 Ma. A gabbroic intrusion was dated at ∼1730 Ma, and the formation of amphibolite-facies assemblages in both metagabbro and granulite occurred at ∼340-460 Ma. Petrologic and geochronological data indicate that these various rocks show no evidence of Triassic eclogite-facies metamorphism and Neoproterozoic protolith ages that are characteristics of Sulu-Dabie HP-UHP rocks, except Neoproterozoic inherited ages from post-collisional Jurassic granitic dikes. Haiyangsuo retrograde granulites with amphibolite-facies assemblages within the gneiss preserve relict garnet formed during granulite-facies metamorphism at ∼1.85 Ga. The Paleoproterozoic metamorphic events are almost coeval with gabbroic intrusions. The granulite-bearing gneiss unit and gabbro-dominated unit of the Haiyangsuo Complex were intruded by thin granitic dikes at about 160 Ma, which is coeval with post-collisional granitic intrusions in the Sulu terrane. We suggest that the Haiyangsuo Complex may represent a fragment of the Jiao-Liao-Ji Paleoproterozoic terrane developed at the eastern margin of the Sino-Korean basement, which was juxtaposed with the Sulu terrane prior to Jurassic granitic activity and regional deformation. Springer-Verlag, 2006 Liou J. G. Department of Geological and Environmental Sciences, Stanford University, Stanford, California, U.S.A. aut Tsujimori T. Department of Geological and Environmental Sciences, Stanford University, Stanford, California, U.S.A. aut Chu W. Department of Geological and Environmental Sciences, Stanford University, Stanford, California, U.S.A. aut Zhang R. Y. Department of Geological and Environmental Sciences, Stanford University, Stanford, California, U.S.A. aut Wooden J. L. U.S. Geological Survey, California, U.S.A. aut Mineralogy and Petrology Springer-Verlag 88/1-2(2006-09-01), 207-226 0930-0708 88:1-2<207 2006 88 710 https://doi.org/10.1007/s00710-006-0156-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00710-006-0156-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liou J. G. Department of Geological and Environmental Sciences, Stanford University, Stanford, California, U.S.A aut NATIONALLICENCE 700 1- Tsujimori T. Department of Geological and Environmental Sciences, Stanford University, Stanford, California, U.S.A aut NATIONALLICENCE 700 1- Chu W. Department of Geological and Environmental Sciences, Stanford University, Stanford, California, U.S.A aut NATIONALLICENCE 700 1- Zhang R. Y. Department of Geological and Environmental Sciences, Stanford University, Stanford, California, U.S.A aut NATIONALLICENCE 700 1- Wooden J. L. U.S. Geological Survey, California, U.S.A aut NATIONALLICENCE 773 0- Mineralogy and Petrology Springer-Verlag 88/1-2(2006-09-01), 207-226 0930-0708 88:1-2<207 2006 88 710 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer