caa a22 4500 606149813 CHVBK 20210128100536.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s00531-015-1178-y doi (NATIONALLICENCE)springer-10.1007/s00531-015-1178-y Re-Os geochronology on sulfides from the Tudun Cu-Ni sulfide deposit, Eastern Tianshan, and its geological significance [Elektronische Daten] [Minfang Wang, Wei Wang, Jens Gutzmer, Kun Liu, Chao Li, Przemysław Michałak, Qinlin Xia, Xiaonan Guo] The Tudun deposit is a medium-sized Cu-Ni sulfide deposit, located at the westernmost edge of the Huangshan-Jing'erquan Belt in the northern part of Eastern Tianshan, NW China. Sulfide separates including pentlandite, pyrrhotite and chalcopyrite from the Tudun deposit, contain Re, common Os and 187Os ranging from 40.46 to 201.2, 0.8048 to 6.246 and 0.1709 to 0.9977ppb, respectively. They have very low 187Os/188Os ratios of 1.224-2.352. The sulfides yield a Re-Os isochron age of 270.0±7.5Ma (MSWD=1.3), consistent within uncertainty with the SHRIMP zircon U-Pb age for the Tudun mafic intrusion (gabbro) of 280.0±3.0Ma. The calculated initial 187Os/188Os ratio is 0.533±0.022, and γOs values range from 283 to 307, with a mean of 297, indicating significant crustal contamination of the parent melt prior to sulfide saturation. The Tudun deposit shares the same age and Re-Os isotopic compositions with other orthomagmatic Cu-Ni sulfide deposits in Huangshan-Jing'erquan Belt, suggesting that they have formed in Early Permian. Springer-Verlag Berlin Heidelberg, 2015 Tudun Cu-Ni deposit nationallicence Re-Os geochronology nationallicence Early Permian nationallicence Eastern Tianshan nationallicence Wang Minfang Faculty of Earth Resources, China University of Geosciences, 430074, Wuhan, China aut Wang Wei Faculty of Earth Resources, China University of Geosciences, 430074, Wuhan, China aut Gutzmer Jens Institute of Mineralogy, TU Bergakademie Freiberg, 09599, Freiberg, Germany aut Liu Kun Faculty of Earth Resources, China University of Geosciences, 430074, Wuhan, China aut Li Chao National Research Center of Geoanalysis, Chinese Academy of Geological Sciences, 100037, Beijing, China aut Michałak Przemysław Institute of Mineralogy, TU Bergakademie Freiberg, 09599, Freiberg, Germany aut Xia Qinlin Faculty of Earth Resources, China University of Geosciences, 430074, Wuhan, China aut Guo Xiaonan Faculty of Earth Resources, China University of Geosciences, 430074, Wuhan, China aut International Journal of Earth Sciences Springer Berlin Heidelberg 104/8(2015-11-01), 2241-2252 1437-3254 104:8<2241 2015 104 531 https://doi.org/10.1007/s00531-015-1178-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00531-015-1178-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Minfang Faculty of Earth Resources, China University of Geosciences, 430074, Wuhan, China aut NATIONALLICENCE 700 1- Wang Wei Faculty of Earth Resources, China University of Geosciences, 430074, Wuhan, China aut NATIONALLICENCE 700 1- Gutzmer Jens Institute of Mineralogy, TU Bergakademie Freiberg, 09599, Freiberg, Germany aut NATIONALLICENCE 700 1- Liu Kun Faculty of Earth Resources, China University of Geosciences, 430074, Wuhan, China aut NATIONALLICENCE 700 1- Li Chao National Research Center of Geoanalysis, Chinese Academy of Geological Sciences, 100037, Beijing, China aut NATIONALLICENCE 700 1- Michałak Przemysław Institute of Mineralogy, TU Bergakademie Freiberg, 09599, Freiberg, Germany aut NATIONALLICENCE 700 1- Xia Qinlin Faculty of Earth Resources, China University of Geosciences, 430074, Wuhan, China aut NATIONALLICENCE 700 1- Guo Xiaonan Faculty of Earth Resources, China University of Geosciences, 430074, Wuhan, China aut NATIONALLICENCE 773 0- International Journal of Earth Sciences Springer Berlin Heidelberg 104/8(2015-11-01), 2241-2252 1437-3254 104:8<2241 2015 104 531