“…Eclogite with peak metamorphic ages between 420 and 490 Ma is distributed over a distance of 350 km, at localities near Yuka, Xitieshan and Dulan. (Yang et al, 2002Song et al, 2003aSong et al, ,b, 2006Zhang et al, 2001Zhang et al, , 2005Zhang et al, , 2006Zhang et al, , 2009bMattinson et al, 2006aMattinson et al, , 2007Zhang et al, 2008aZhang et al, ,b, 2009a. Garnet peridotite from the Luliangshan area (Yang and Deng, 1994) is thought to have been exhumed from mantle depths in excess of 200 km (Song et al, 2004(Song et al, , 2005.…”