نوع مقاله: علمی - پژوهشی

نویسندگان

1 دانشگاه صنعتی شاهرود

2 سازمان زمین شناسی و اکتشافات معدنی کشور

عنوان مقاله [English]

Geochemical Characteristics of Shear Zone Gold Mineralization of Kurdistan Province

نویسندگان [English]

  • R Ghavami-Riabi 1
  • M.M Seyedrahimi- Nayragh 1
  • R Khalokakaie 1
  • M.R Hazara 2

1 Shahrood University of Technology

2 Iranian Geological Society

چکیده [English]

The gold mineralization in Kurdistan Province of Iran was classified as shear zone gold type by some of the researchers. In the current study, the geochemical samples collected from the secondary environment, stream sediments, at the SW of Saqquez area were used to investigate the geochemical characteristics of the gold mineralized zones in this environment. The multi-variant statistical analysis, cluster analysis, was used to identify the gold paragenesis. The cluster analysis was led to identify the geochemical paragenesis of Au, which are W, Bi, Sn, and Hg. Hg, and Sb haloes are extended in un-mineralized area. As element, which is an important paragenesis in many gold deposits, was used instead of Hg in this investigation. The anomaly areas for each element were determined based on the probability plot modeling method. The spatial dispersion haloes of the anomaly areas, as 2D map, were identified based on the modeling of probability plot results. The results of interpretations were shown that Sn, W and Bi were highly correlated with Au in the study area. Element of As did not show an important correlation and anomalous area in this environment. These characteristics show a very high correlation to the primary dispersion haloes of shear zone gold deposits in the other part of the world. Based on these similarities of the behaviors, the other geochemical exploration patterns in the primary environments might be used for the Kurdistan mineralized areas to prioritize the anomalous area for follow up exploration.  

کلیدواژه‌ها [English]

  • shear zone
  • geochemical characteristics
  • Anomalous area
  • cluster analysis
  • Mineralization