An overview of the formation stages of Porphyry-Epithermal Negar copper deposit, southwest of Kerman: Based on geological, petrological, and geochemical studies of Negar area

Document Type : Original Article

Authors

1 Department of Geology, Faculty of Technical Engineering and Basic Sciences, Velayat University,,Iranheshar .

2 University of Exeter's Camborne School of Mines,, Sheffield, England

3 Department of Geology.Shahid Bahonar University.Kerman. Iran.

10.22108/ijp.2024.141008.1328

Abstract

Porphyry Negar copper deposit is located southwest of Kerman. Structurally, this area is situated in the central part of the Dehaj- Sarduiyeh belt, which is the result of the Neo-Tethys oceanic subduction in a portion of the southern Negar porphyry system. In this area, mineralization has taken place within volcanic rocks, pyroclastics, and intensely altered andesites of Eocene age are surrounded by porphyritic granitoids. This mineralization occurs in porphyritic, disseminated and vein-type forms with varying distribution in different parts of the area. The alteration patterns include propylitic alteration in the surroundings, phyllic and argillic alteration in the central part of the hydrothermal system, and silicic alteration within the ore zone. Potassic alteration occurs at depth and is concentrated in the western part of the area. The lithological, mineralogical, and alteration evidence confirm the high-grade and valuable porphyry copper deposits along with high-level sulfidation epithermal mineralization in shallower parts of the region.

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Articles in Press, Accepted Manuscript
Available Online from 08 May 2024
  • Receive Date: 19 March 2024
  • Revise Date: 04 May 2024
  • Accept Date: 08 May 2024