Employing geochemistry and geochronology to unravel genesis and tectonic setting of iron oxide-apatite deposits of the Bafq-Saghand metallogenic belt, Central Iran

Majidi, Seyed Afshin; Omrani, Jafar; Troll, Valentin R.; Weis, Franz; Houshmandzadeh, Abdolrahim; Ashouri, Ehsan; Nezafati, Nima; Chung, Sun‐Lin

doi:10.1007/s00531-020-01942-5

Cited by 11 publications

(2 citation statements)

References 106 publications

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“…For example, the Bafq district in central Iran has been indicated as a back-arc basin, coeval with convergence along the proto-Tethyan margin during the Neoproterozoic to early Cambrian, and Zn-Pb and IOA deposits formed in this environment (e.g., Rajabi et al, 2015Rajabi et al, , 2020Eslamizadeh, 2016). However, the Bafq district has also been indicated to represent the magmatic arc region of the orogeny (e.g., Ramezani and Tucker, 2003;Majidi et al, 2020); hence, consensus on the tectonic setting of central Iran has not been reached. The importance of back-arc extension and subsequent onset of crustal shortening have been highlighted as key aspects for IOCG formation in the Jurassic-Cretaceous Coastal Cordillera of northern Chile and southern Peru (e.g., Mpodozis and Ramos, 1989;Sillitoe, 2003) as well as the Paleo-to Mesoproterozoic Mt.…”

Section: Basin Developmentmentioning

confidence: 99%

Structural Evolution of the Central Kiruna Area, Northern Norrbotten, Sweden: Implications on the Geologic Setting Generating Iron Oxide-Apatite and Epigenetic Iron and Copper Sulfides

Andersson

Martinsson

2021

Economic Geology

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To guide future exploration, this predominantly field based study has investigated the structural evolution of the central Kiruna area, the type locality for iron oxide-apatite deposits that stands for a significant amount of the European iron ore production. Using a combination of geologic mapping focusing on structures and stratigraphy, petrography with focus on microstructures, X-ray computed tomography imaging of sulfide-structure relationships, and structural 2D-forward modeling, a structural framework is provided including spatial-temporal relationships between iron oxide-apatite emplacement, subeconomic Fe and Cu sulfide mineralization, and deformation. These relationships are important to constrain as a guidance for exploration in iron oxide-apatite and iron oxide copper-gold prospective terrains and may help to understand the genesis of these deposit types. Results suggest that the iron oxide-apatite deposits were emplaced in an intracontinental back-arc basin, and they formed precrustal shortening under shallow crustal conditions. Subsequent east-west crustal shortening under greenschist facies metamorphism inverted the basin along steep to moderately steep E-dipping structures, often subparallel with bedding and lithological contacts, with reverse, oblique to dip-slip, east-block-up sense of shears. Fe and Cu sulfides associated with Fe oxides are hosted by structures formed during the basin inversion and are spatially related to the iron oxide-apatite deposits but formed in fundamentally different structural settings and are separated in time. The inverted basin was gently refolded and later affected by hydraulic fracturing, which represent the last recorded deformation-hydrothermal events affecting the crustal architecture of central Kiruna.

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Section: Basin Developmentmentioning

confidence: 99%

Structural Evolution of the Central Kiruna Area, Northern Norrbotten, Sweden: Implications on the Geologic Setting Generating Iron Oxide-Apatite and Epigenetic Iron and Copper Sulfides

Andersson

Martinsson

2021

Economic Geology

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“…The presence of rare earth elements in this mine has already been proven. Due to the importance of environmental issues of rare earth elements, the amount of elements in the Choghart mine has been studied in this study [25][26][27][28] .…”

Section: Geographical Location Of the Study Areamentioning

confidence: 99%

Investigation of Environmental and Biological Effects of Rare Earth Elements (REEs) with a Special Focus on Industrial and Mining Pollutions in Iran: A Review

Ширази

Shirazy

Pour

et al. 2021

adv. in geol. and geotech. eng. res.

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The present article is a review study on the types of rare earth elements (REEs), environmental and biological effects as well as the sources of emission of these elements as pollution in nature. The purpose of this study is to provide a vision in environmental planning and control of pollution caused by REEs. The evaluation of rare earth elements was studied in human life and its environmental and biological effects, which have particular importance and are entering the life cycle through industrial and mining pollution sources. Since mining activities intensify the dispersion of these elements in the environment and the existence of industrial factories located around urban drainage system plays a unique role in creating and spreading pollution caused by rare earth elements; As a result, two case studies were conducted on two mining and industrial areas. The first case is the Choghart mine in Yazd province as an example of mining pollution,and the second case study is performed on the Kor river as an example of industrial pollution which is caused by industrial activities around it, Then the results are well explained to show both two environments of litho and hydro. Due to this fact that produced environmental pollution can cause exchange pollutant compounds with the surrounding environment besides its long-lasting destructive effects; It can cause irreversible biological effects on living organisms. By targeting this evaluation, several techniques can be proposed to prevent the entry and dispersal of rare earth elements from pollution sources besides methods to reduce the damage of these elements to the ecosystem.

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Textural and compositional constraints on the origin, thermal history, and REE mobility in the Lakeh Siah iron oxide-apatite deposit—NE Bafq, Iran

et al. 2023

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Employing geochemistry and geochronology to unravel genesis and tectonic setting of iron oxide-apatite deposits of the Bafq-Saghand metallogenic belt, Central Iran

Cited by 11 publications

References 106 publications

Structural Evolution of the Central Kiruna Area, Northern Norrbotten, Sweden: Implications on the Geologic Setting Generating Iron Oxide-Apatite and Epigenetic Iron and Copper Sulfides

Structural Evolution of the Central Kiruna Area, Northern Norrbotten, Sweden: Implications on the Geologic Setting Generating Iron Oxide-Apatite and Epigenetic Iron and Copper Sulfides

Investigation of Environmental and Biological Effects of Rare Earth Elements (REEs) with a Special Focus on Industrial and Mining Pollutions in Iran: A Review

Textural and compositional constraints on the origin, thermal history, and REE mobility in the Lakeh Siah iron oxide-apatite deposit—NE Bafq, Iran

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