1. College of Resources and Civil EngineeringNortheastern University Shenyang 110819 China
2. State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences Guiyang 550081 China
3. School of Civil EngineeringShijiazhuang Tiedao University Shijiazhuang 050043 China
4. Key Laboratory of Metallogeny and Mineral Resource Assesment, Ministry of Land and Resources, Institute of Mineral Resources, Chinese Academy of Geological Sciences Beijing 100037 China