Iron and Fe–Mn mineralisation in Iran: implications for Tethyan metallogeny

Nabatian, Ghasem; Rastad, Ebrahim; Neubauer, Franz; Honarmand, Maryam; Ghaderi, Majid

doi:10.1080/08120099.2015.1002001

Cited by 56 publications

(34 citation statements)

References 80 publications

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“…In terms of the geological backdrop of the study site, Paleozoic metamorphic rocks are found in this area, in addition to Mesozoic and Cenozoic sedimentary rocks and Quaternary alluvial materials (Mücke and Younessi 1994; Nabatian et al 2015). The Mesozoic sediments were deposited along a passive continental margin (Stocklin 1968; Berberian and King 1981; Alavi 2004) and subsequently large-scale Mesozoic plutons ranging from gabbro to granite, emplaced in about 160 ± 10 Ma by the K-Ar methods (Sheikholeslami et al 2008).…”

Section: Methodsmentioning

confidence: 98%

“…The facility consists of six separate ore bodies spread over 40 km 2 , a primary crusher (PC), a tail bin (TB), numerous tailing piles, a polycom plant (PLY), a hematite recovery plant (HRP), an iron ore concentration plant (ICP), and an iron ore pelletizing plant (IPP). This facility is one of the largest iron ore producers in the region with a total ore reserve of approximately 1135 million tons at a grade of about 57.2% Fe, 0.16% P, and 1.86% S (Monjezi et al 2009; Nabatian et al 2015; Hosseini and Asghari 2016). …”

Section: Methodsmentioning

confidence: 99%

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Distribution of potentially toxic elements (PTEs) in tailings, soils, and plants around Gol-E-Gohar iron mine, a case study in Iran

Soltani

Keshavarzi

Moore

et al. 2017

Environ Sci Pollut Res

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This study investigated the concentration of potentially toxic elements (PTEs) including Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Mo, Ni, Pb, Sb, V, and Zn in 102 soils (in the Near and Far areas of the mine), 7 tailings, and 60 plant samples (shoots and roots of Artemisia sieberi and Zygophylum species) collected at the Gol-E-Gohar iron ore mine in Iran. The elemental concentrations in tailings and soil samples (in Near and Far areas) varied between 7.4 and 35.8 mg kg−1 for As (with a mean of 25.39 mg kg−1 for tailings), 7.9 and 261.5 mg kg−1 (mean 189.83 mg kg−1 for tailings) for Co, 17.7 and 885.03 mg kg−1 (mean 472.77 mg kg−1 for tailings) for Cu, 12,500 and 400,000 mg kg−1 (mean 120,642.86 mg kg−1 for tailings) for Fe, and 28.1 and 278.1 mg kg−1 (mean 150.29 mg kg−1 for tailings) for Ni. A number of physicochemical parameters and pollution index for soils were determined around the mine. Sequential extractions of tailings and soil samples indicated that Fe, Cr, and Co were the least mobile and that Mn, Zn, Cu, and As were potentially available for plants uptake. Similar to soil, the concentration of Al, As, Co, Cr, Cu, Fe, Mn, Mo, Ni, and Zn in plant samples decreased with the distance from the mining/processing areas. Data on plants showed that metal concentrations in shoots usually exceeded those in roots and varied significantly between the two investigated species (Artemisia sieberi > Zygophylum). All the reported results suggest that the soil and plants near the iron ore mine are contaminated with PTEs and that they can be potentially dispersed in the environment via aerosol transport and deposition.

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Section: Methodsmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

Distribution of potentially toxic elements (PTEs) in tailings, soils, and plants around Gol-E-Gohar iron mine, a case study in Iran

Soltani

Keshavarzi

Moore

et al. 2017

Environ Sci Pollut Res

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“…In several previous mineralogical studies of the GEG area, possible links between actinolitization and iron mineralization (e.g., Asadi and Rajabzadeh 2014; Babaki and Aftabi 2006; Mücke and Younessi 1994; Nabatian et al 2015), and also presence of tremolite and actinolite in the GEG iron deposit (Fig. S1), have been addressed in detail (Babaki and Aftabi 2006).…”

Section: Resultsmentioning

confidence: 99%

“…It is one of the most important economic iron deposits in Iran, and the total reserve of iron is estimated to be more than 1135 Mt. at a grade of about 57.2% Fe, 0.16% P, and 1.86% S (Hosseini and Asghari 2016; Mirnejad et al 2011; Nabatian et al 2015). …”

Section: Methodsmentioning

confidence: 99%

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Oxidative potential (OP) and mineralogy of iron ore particulate matter at the Gol-E-Gohar Mining and Industrial Facility (Iran)

Soltani

Keshavarzi

Sorooshian

et al. 2017

Environ Geochem Health

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Concentrations of total suspended particulate matter, particulate matter with aerodynamic diameter <2.5 μm (PM2.5), particulate matter <10 μm (PM10), and fallout dust were measured at the Iranian Gol-E-Gohar Mining and Industrial Facility. Samples were characterized in terms of mineralogy, morphology, and oxidative potential. Results show that indoor samples exceeded the 24-h PM2.5 and PM10 mass concentration limits (35 and 150 μg m−3, respectively) set by the US National Ambient Air Quality Standards. Calcite, magnetite, tremolite, pyrite, talc, and clay minerals such as kaolinite, vermiculite, and illite are the major phases of the iron ore PM. Accessory minerals are quartz, dolomite, hematite, actinolite, biotite, albite, nimite, laumontite, diopside, and muscovite. The scanning electron microscope structure of fibrous-elongated minerals revealed individual fibers in the range of 1.5 nm to 71.65 μm in length and 0.2 nm to 3.7 μmin diameter. The presence of minerals related to respiratory diseases, such as talc, crystalline silica, and needle-shaped minerals like amphibole asbestos (tremolite and actinolite), strongly suggests the need for detailed health-based studies in the region. The particulate samples show low to medium oxidative potential per unit of mass, in relation to an urban road side control, being more reactive with ascorbate than with glutathione or urate. However, the PM oxidative potential per volume of air is exceptionally high, confirming that the workers are exposed to a considerable oxidative environment. PM released by iron ore mining and processing activities should be considered a potential health risk to the mine workers and nearby employees, and strategies to combat the issue are suggested.

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Innovative imaging of iron deposits using cross‐gradient joint inversion of potential field data with petrophysical correlation

Sadraeifar,

Abedi

2024

Near Surface Geophysics

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This study demonstrates the application of the cross‐gradient joint inversion method to investigate iron mineralization zones within a volcano‐sedimentary environment. The presence of minerals with intense contrasts in density or magnetic susceptibility, such as hematite or magnetite, facilitates modelling the distribution of ore bodies with depth. Our approach involves establishing a unified interpretation of reconstructed density and susceptibility models through both independent and joint inversion with sparsity regularization in conjunction with a petrophysical model resulting from core data. This approach provides an ideal strategy to uncover the realistic geologic setting of iron ore deposits. We initially simulated a synthetic model closely resembling real‐case scenarios to assess the efficacy of the cross‐gradient joint inversion algorithm in comparison to independent inversion. Subsequently, the inversion algorithms were implemented on gravity and magnetic data, collected over an area of 500 × 600 m2 in Shavaz iron‐bearing deposits located in the central Iranian block. The primary iron oxide–apatite type mineralization in the study area is associated with the Nain–Dehshir–Baft fault as a NW–SE trending strike‐slip fault. Although both inversion methods yield satisfactory models, incorporating the cross‐gradient constraint in joint inversion resulted in a more constrained delineation of iron–oxide ore deposits in the fault system. This improvement facilitates the differentiation between hematite and a small percentage of magnetite, providing a more accurate estimation of ore depth. Inversion results suggest that the magnetite mineralization is coated with extensive hematite mineralization and both are positioned relatively within the same depth interval, covered by approximately a 15–25 m sequence of sediments.

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Iron and Fe–Mn mineralisation in Iran: implications for Tethyan metallogeny

Cited by 56 publications

References 80 publications

Distribution of potentially toxic elements (PTEs) in tailings, soils, and plants around Gol-E-Gohar iron mine, a case study in Iran

Distribution of potentially toxic elements (PTEs) in tailings, soils, and plants around Gol-E-Gohar iron mine, a case study in Iran

Oxidative potential (OP) and mineralogy of iron ore particulate matter at the Gol-E-Gohar Mining and Industrial Facility (Iran)

Innovative imaging of iron deposits using cross‐gradient joint inversion of potential field data with petrophysical correlation

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