Tectono-magmatic setting of the Albite-bearing metasomatite of the Ghoghart magnetite-apatite ore deposits, Northeast Bafq, Central Iran

Hosseini, Kiamars; Shahpasandzadeh, Majid

doi:10.22071/gsj.2020.215856.1744

Document Type : Original Research Paper

Authors

¹ M.Sc., Department of Earth sciences, Hormozgan University, Bandar Abbas, Iran

² Associate Professor, Department of Earth sciences, Graduate University of Advanced Technology, Kerman, Iran

https://doi.org/10.22071/gsj.2020.215856.1744

Abstract

The Late Neoproterozoic-Early Cambrian albite-bearing metasomatite, rhyolites and rhyodacites predominantly constitute the host rocks of the Choghart magnetite-apatite deposit in Central Iran. The geologic evidences show three types of albites in the host albite-bearing metasomatite. The performed mineralogical and geochemical investigations display enrichment of REE-Y-Ti-Th in the pink and fleshy red albites, whereas the white albites are barren without any ore mineralization. The concentration of REE-Y-Ti-Th-U bearing minerals along the fractures, the variation of Th/U ratio and result of stable isotopes studies of the calcites syn-paragenesis with the abiltes reveal the involvement of mixed magmatic and high-midium temperature hydrothermal processes play an important role in the ore genesis. The similarity pattern of the REEs and trace elements in different types of abilte-bearing metasomatite and rhyolite manifest the origin of REE-Y-Ti-Th mineralization as the rhyolitic-rhyodacitic magmas, related to a continental/oceanic subduction zone. According to this research, tectono-magmatic setting of the albite-bearing metasomatite in the Choghart deposit is suggested as a Calc-alkaline magmatism, associated with the active continental margin and oceanic island arcs.

Keywords

20.1001.1.10237429.1399.30.118.8.8

Main Subjects

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Scientific Quarterly Journal of Geosciences

Tectono-magmatic setting of the Albite-bearing metasomatite of the Ghoghart magnetite-apatite ore deposits, Northeast Bafq, Central Iran

References

References

Volume 30, Issue 118 - Serial Number 118
Vo. 30, No, 118, Winter 2021
January 2021
Pages 81-94

Tectono-magmatic setting of the Albite-bearing metasomatite of the Ghoghart magnetite-apatite ore deposits, Northeast Bafq, Central Iran

References

References

Volume 30, Issue 118 - Serial Number 118Vo. 30, No, 118, Winter 2021January 2021Pages 81-94

Volume 30, Issue 118 - Serial Number 118
Vo. 30, No, 118, Winter 2021
January 2021
Pages 81-94