Geochronology of Granitoid Rocks and Geochemistry,Petrogenesis of Volcanic Rocks in the Dahalajunshan Formation Towards a Genetic Model for the Associated Iron Ore Deposits,Xinjiang, NW China

<正>There are many skarn deposits that occur in volcanic rocks as stratiform and lentoid bodies,for example the Lower Yangtze River Valley,Western Tianshan Mountains and Lhasa Terrane in China,the Nuuk in West Greeland and the Austroalpine Alps(e.g.Xv et al.,1984;Appel,1994;Raith and Stein,2000;Wang et al.,2001;Gu et al.,2007;Hou et al.,2011;Zhou et al.,2011;Jiang et al.,2012;Xu et al.,2010;Wang et al.,2012;Yu et al.,2011).Despite