1Géosciences Rennes, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
2Department of Geology, Changchun University of Earth Sciences, Changchun 130061, China
3Department of Geology, National Taiwan University, 245 Choushan Rd., Taipei 10770, Taiwan
4Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, USA