Journal of Remote Sensing & GIS

Ao Song-Jian

Publications

• Research Article
  The Paleoproterozoic Chibaisong mafic-ultramafic intrusion and Cu-Ni deposit, North China Craton: SHRIMP zircon U-Pb and Re-Os geochronology and geodynamic implications
  Author(s): Han Chun-Ming*, Wu Fu-Yuan, Xiao Wen-Jiao, Zhao Guo-Chun, Ao Song-Jian, Zhang Ji-Een, Wan Bo, Qu Wen-Jun and Du An-DaoHan Chun-Ming*, Wu Fu-Yuan, Xiao Wen-Jiao, Zhao Guo-Chun, Ao Song-Jian, Zhang Ji-Een, Wan Bo, Qu Wen-Jun and Du An-Dao
  
  The Chibaisong magmatic Ni–Cu sulfide deposit (Jilin Province, NE China) is located in the Jiao-Liao-Ji Belt of the North China Craton. The ore-bearing mafic-ultramafic intrusions intrude the metamorphic rocks of the lowermost Sidaolazi Formation of the Anshan Group. SHRIMP zircon U-Pb dating gives a maximum depositional age of 2188 ± 8 Ma (95% confidence level, MSWD=3.2, n=8) for the host sedimentary rocks of the Chibaisong deposits. Rhenium and osmium isotopic analyses of Ni-and Cu-bearing sulfide minerals from the deposit have been used to determine the timing of mineralization, the source of osmium, and, by inference, the source of ore metals. Sulfide ore samples have Os and Re concentrations ranging from 19 to 490 ppb and from 0.47 to 13.97ppb, respectively. Analyses of these data yield a six-point isochron age of 1885 ± 94 Ma. An initial 187Os/188Os ratio of .. View More»
  DOI: 10.4172/2169-0049.1000116

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