Cheng-Biao Leng

Geology, Sulfur Isotopes and Scheelite Sm‐Nd Age of the Kukaazi Pb‐Zn‐(Cu‐W) Polymetallic Deposit, Yecheng County, Xinjiang, China

The Kukaazi Pb-Zn-(Cu-W) polymetallic deposit, a newly discovered massive sulfide polymetallic deposit, is located in Xihexiu Twonship, Yecheng County, Xinjiang, China. Tectonically, it lies in the Western Kunlun central terrain and Phanerozoic magmatic arc (Sun et al., 2003), bordered by the Kegang Fracture zone in north and Kangxiwa Fracture zone in south, in the Western Kunlun Oregenic belt which is believed to be a Proto-Tethyan Orogenic belt (Xu et al., 2011). The Pb-Zn-(Cu-W) mineralization of the Kukaazi deposit occurred in Precambrian strata. Through primary studies on ore deposit geology, sulfur isotopes of sulfides and sulfate, Sm-Nd geochronology of scheelite, the origin of oreforming materials and the metallogenesis of the deposit have been probed and discussed in this paper.

Some Features of Fluid Inclusions in Garnets from the Seleteguole Skarn Cu-Mo Deposit, Jinghe County, Xinjiang, China

the deposit. Light brownish red garnet occurred as 3-10 mm sized disseminated spots in white hornfelsed felsic tuff which is directly in contact with the Cu-mineralized granite porphyry stock. Brown garnet occurred as massive aggregates of 2-6 mm sized tetragonal trisoctahedron crystals in the garnet skarn, which is close to the Cumineralized granite porphyry stock, with irregular quartz stockwork veins and local flaky molybdenite. Yellowish green garnet occurred as aggregates of 3-5 mm sized rhombic dodecahedron crystals in greyish white hornfelsed siltstone which is relatively far away from the