Geochronology and Hf isotopes of zircon from volcanic rocks of the Shuangqiaoshan Group, South China: Implications for the Neoproterozoic tectonic evolution of the eastern Jiangnan orogen

• Published in: Gondwana research Vol. 14; no. 3; pp. 355 - 367
• Main Authors: Wang, Xiao-Lei, Zhao, Guochun, Zhou, Jin-Cheng, Liu, Yongsheng, Hu, Jian
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2008
• Subjects: Hf isotopes; Jiangnan orogen; Neoproterozoic; Shuangqiaoshan Group; Zircon geochronology; Jiangnan orogen; Hf isotopes; Shuangqiaoshan Group; Neoproterozoic; Zircon geochronology

The Shuangqiaoshan Group is an important stratigraphic unit in the Jiangnan orogen, however, prior to this study its age was unclear. Zircon from the intruding gabbros, interleaved quartz-keratophyres and tuffs yielded ages of 801 ± 4 Ma, 878 ± 5 Ma and 879 ± 6 Ma, respectively. The ages of the quar...