Mineralogy and geochemistry of the carbonate rocks of the Majrouseh area, Khoy–Mahabad Zone, northwestern Iran

Articles in Press

Document Type : Research

Authors

1 Department of Geology, Faculty of Science, Urmia University, Urmia, Iran

2 Department of Mining Engineering, Isfahan University of Technology, Isfahan, Iran

3 School of Earth Sciences, China University of Geosciences-Wuhan, China

10.22128/ijcm.2025.3115.1017

Abstract

The carbonate rocks of the Ruteh Formation, with a Permian age in the Majrouseh area (west of Urmia County, West Azarbaidjan province, northwestern Iran), host lateritic deposits. Mineralogical studies indicate that dolomite and calcite are the main mineral phases in these rocks, accompanied by smaller amounts of minerals, such as clays (kaolinite, smectite, and illite), hematite, goethite, siderite, K-feldspar, albite, and anatase. Based on the CaO/MgO ratio, their composition ranges from dolomite to slightly calcitic dolomite. Geochemical data show that the rare earth elements (REE; La–Lu) content of these rocks varies from 3.86 to 8.20 ppm, which falls within the range of marine carbonates. The Eu and Ce anomalies fluctuate in the range of 1.16 to 1.45 and 0.72 to 1.05, respectively.

Keywords

Iranian Journal of Crystallography and Mineralogy

Articles in Press, Accepted Manuscript
Available Online from 07 December 2025

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History

  • Receive Date: 31 October 2025
  • Revise Date: 26 November 2025
  • Accept Date: 07 December 2025

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