Using petrological and geochemical data for the protolith reconstruction of the metamorphic host rocks in Goharzamin Iron Ore

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Hassanzadeh Fereshteh; Atapour Habibeh; Ranjbar Hojjatollah

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Journal: GEOSCIENCES Year:2025 | Volume: | Issue: Page(s): 1-20

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Information Journal Paper

Title

Using petrological and geochemical data for the protolith reconstruction of the metamorphic host rocks in Goharzamin Iron Ore

Author(s)

Hassanzadeh Fereshteh | Atapour Habibeh | Ranjbar Hojjatollah | Issue Writer Certificate

Keywords

Schistose rocks

Pelitic and basaltic protolith

banded iron ore formation

Ediacaran

Gohar Zamin mine

Sirjan

Abstract

The metamorphosed Gohar Zamin iron deposit (643 Mt @ 54.3 % Fe, 2.04 % S, 0.12 % P) is hosted by mica schist, quartz schist, calc-schist and meta-basite. of greenschist facies that formed during Cimmerian orogeny. The presence of coarse-grained quartz dropstones and garnet-bearing schist clasts in the Schistose rocks and CIA values (41.83 to 95.42) suggests a syn-glaciomarine pelitic with basaltic eruptions. ∑REE+Y patterns display slight LREE enrichment, low-moderate Y/Ho ratios, flat HREE patterns and negative Eu anomaly during pelitic rocks deposition. As a result of metamorphism, the magnetite-hematite ores display coarse grained texture (> 0.2 mm) that is an advantage for mineral separation, mineral processing and milling of the ore.

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