Next Article in Journal
Chromogenic Mechanism and Formation of Zonal Genesis of Raspberry-Red Grossular from the Sierra de Cruces Range, Mexico
Previous Article in Journal
Slag Substitution Effect on Features of Alkali-Free Accelerator-Reinforced Cemented Paste Backfill
Previous Article in Special Issue
A Genetic Model for the Biggenden Gold-Bearing Fe Skarn Deposit, Queensland, Australia: Geology, Mineralogy, Isotope Geochemistry, and Fluid Inclusion Studies
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Minerals
Volume 15
Issue 2
10.3390/min15020137
minerals-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Magnetite Texture and Geochemistry in the Takab Ore Deposit (NW Iran): Implications for a Complex Hydrothermal Evolution

by
Christiane Wagner
1,*,
Omar Boudouma
1,
Nicolas Rividi
2,
Beate Orberger
3,
Ghasem Nabatian
4,
Maryam Honarmand
5 and
Iman Monsef
5
1
Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre de Paris, ISTeP, F-75005 Paris, France
2
Sorbonne Université, CNRS-INSU, Institut de Physique du Globe de Paris, IPGP, F-75005 Paris, France
3
Laboratoire Géosciences Paris-Saclay, GEOPS, Université Paris-Saclay, CNRS, F-91405 Orsay, France
4
Department of Geology, Faculty of Science, University of Zanjan, University Blvd., Zanjan 45371-38791, Iran
5
Department of Earth Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
*
Author to whom correspondence should be addressed.
Minerals 2025, 15(2), 137; https://doi.org/10.3390/min15020137
Submission received: 24 September 2024 / Revised: 24 January 2025 / Accepted: 25 January 2025 / Published: 29 January 2025
(This article belongs to the Special Issue Geochemistry and Genesis of Hydrothermal Ore Deposits)
Versions Notes

Abstract

The massive magnetite deposit from Takab (NW Iran) is hosted in amphibolite layers intercalated with the chemical and terrigenous sediments of the Takab BIF. A comprehensive textural and chemical study allowed three types of magnetite (Mt) to be distinguished. Mt1 forms large (≤1 mm) inhomogeneous grains surrounded and locally invaded by magnetite Mt2. Oscillatory zoning is present in Mt1 and Mt2. Mt3 forms bands aligned along fracture planes. Mt3 may contain hematite relicts and is porous in proximity to hematite. Mt1 shows variable and higher Si (up to 1.4 wt. %), Al, Ca, and Mg and lower Fe content (68 wt. %) than Mt2. Mt3 has the lowest Si (<0.3 wt. %) and highest Fe (71 wt. %) contents. The temperature of formation decreases from Mt1 (600 °C) to Mt2 (500–550 °C) and Mt3 (380–440 °C). Mt1 likely formed in a reducing Si-rich environment. The close spatial relationship, sharp compositional boundaries, similar crystallographic structure of Mt1 and Mt2, and porosity in Mt2 suggest a fluid-assisted coupled dissolution of Mt1 and precipitation of Mt2 (CDR process). Microfracturing allowed the penetration of oxidizing fluid and the formation of platy hematite bands. Mt3 (mushketovite) formed after hematite by interaction with a reducing lower temperature fluid through a redox transformation.
Keywords: magnetite; textural evolution; trace elements; CDR process; hydrothermal fluid; EMPA; SEM; EBSD; Takab; Iran magnetite; textural evolution; trace elements; CDR process; hydrothermal fluid; EMPA; SEM; EBSD; Takab; Iran

Share and Cite

MDPI and ACS Style

Wagner, C.; Boudouma, O.; Rividi, N.; Orberger, B.; Nabatian, G.; Honarmand, M.; Monsef, I. Magnetite Texture and Geochemistry in the Takab Ore Deposit (NW Iran): Implications for a Complex Hydrothermal Evolution. Minerals 2025, 15, 137. https://doi.org/10.3390/min15020137

AMA Style

Wagner C, Boudouma O, Rividi N, Orberger B, Nabatian G, Honarmand M, Monsef I. Magnetite Texture and Geochemistry in the Takab Ore Deposit (NW Iran): Implications for a Complex Hydrothermal Evolution. Minerals. 2025; 15(2):137. https://doi.org/10.3390/min15020137

Chicago/Turabian Style

Wagner, Christiane, Omar Boudouma, Nicolas Rividi, Beate Orberger, Ghasem Nabatian, Maryam Honarmand, and Iman Monsef. 2025. "Magnetite Texture and Geochemistry in the Takab Ore Deposit (NW Iran): Implications for a Complex Hydrothermal Evolution" Minerals 15, no. 2: 137. https://doi.org/10.3390/min15020137

APA Style

Wagner, C., Boudouma, O., Rividi, N., Orberger, B., Nabatian, G., Honarmand, M., & Monsef, I. (2025). Magnetite Texture and Geochemistry in the Takab Ore Deposit (NW Iran): Implications for a Complex Hydrothermal Evolution. Minerals, 15(2), 137. https://doi.org/10.3390/min15020137

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop