سازند قرمز بالایی، ساخت و بافت، کانه‌زایی سرب-روی-مس رسوبی نوع red-bed ، Asael, D., Matthews, A., Bar-Matthews, M. & Halicz, L., 2007- Copper isotope fractionation in sedimentary copper mineralization, Timna Valley, Israel. Chemical Geology 243: 238–254. Avila-Salinas, W., 1990- Origin

Document Type : Original Article

Authors

1 University of Zanjan

2 University for Basic studies

10.22128/ijcm.2025.2970.0

Abstract

The Cherlanghush Pb-Zn-Cu deposit is located in northeast of Mahneshan and the northwest corner of Central Iran. Rock units exposed in this area belong to the Cenozoic era including Lower Red Formation, Qom Formation, Upper Red Formation and Quaternary deposits. The Upper Red Formation which is the host for the mineralization is widely exposed in the study area and consists of alternation of marl, siltstone, oxidized red sandstone and light gray sandstone. The Pb-Zn-Cu mineralization has occurred within the gray sandstones of bleached zone containing organic materials. In Cherlanghush, Pb-Zn-Cu ore deposit the mineralization has happen in two horizons. Each horizon is composed of three zones including mineralized zone, bleached zone and oxidized red zone. The observed textures in the Cherlanghush ore deposit are replacement texture, disseminated texture, solution seams texture, lens-like texture and inter particle cement texture. The host rocks in the study ore deposit are gray sandstone beds and the primary ore minerals are galena, sphalerite, pyrite, primary chalcocite and chalcopyrite accompanied with secondary ore minerals such as primary chalcocite, covellite, malachite, azurite, geothite and lepidocrocite. The characteristics of the study ore deposit such as texture and structure, host rock, ore minerals, stratigraphy, and factors controlling the mineralization (presence of organic materials and minor amount of pyrite performing as reductant and also high permeability in the host rock) are most similar to the red-bed type sedimentary Cu deposits.

 

Keywords

References

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Iranian Journal of Crystallography and Mineralogy
Volume 33, Issue 4 - Serial Number 100
January 2026
Pages 737-758

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History

  • Receive Date: 04 April 2025
  • Revise Date: 08 May 2025
  • Accept Date: 21 June 2025

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