North Qinling Paleozoic granite associations and their variation in space and time: Implications for orogenic processes in the orogens of central China

• Published in: Science China. Earth sciences Vol. 52; no. 9; pp. 1359 - 1384
• Main Authors: Wang, Tao, Wang, XiaoXia, Tian, Wei, Zhang, ChengLi, Li, WuPing, Li, Shan
• Format: Journal Article
• Language: English
• Published: Heidelberg SP Science in China Press 01.09.2009; Springer Nature B.V
• Subjects: Accretion; association; Continental margins; Earth and Environmental Science; Earth Sciences; Geochemistry; geochronology; granite; Igneous rocks; isotopes; Magma; orogen; Paleozoic; Plate tectonics; Qinling; Rocks; Statistical analysis; zircon; granite association; zircon geochronology; Hf isotopes; Nd; Qinling orogen

Integrated zircon U-Pb dating and whole rock geochemical analyses have been carried out for two typical S-and I-type granitoids in the north Qinling. Zircon dating by SIMS of the Piaochi S-type grani- toids yields an emplacement age of 495±6 Ma. The granitoids show whole-rock εNd(t)=-8.2--8.8, zirco...