Semi-variograms and kriging techniques in iron ore reserve categorization: application at Jebel Wenza deposit

Zerzour, Oussama; Gadri, Larbi; Hadji, Riheb; Mebrouk, Faouzi; Hamed, Younes

doi:10.1007/s12517-020-05858-x

Cited by 16 publications

(5 citation statements)

References 32 publications

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“…Algeria has recently experienced significant economic development, especially in the mining sector, which has garnered renewed interest and new growth ambitions after a prolonged period of stagnation. Starting from 2020, the annual production volume of iron ore in Algeria will reach around two million tons; however, this quantity remains insufficient to meet the country's growing needs [1].…”

Section: Introductionmentioning

confidence: 99%

Investigation of physicochemical characterization and magnetic enrichment of iron ore from Sidi Maarouf deposit

Chaib,

Bouabdallah,

Ferfar

et al. 2024

TAPR

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The establishment of a new metallurgical complex in Bellara, located in El-Milia in the Jijel region, is geographically advantageous due to its proximity to the Sidi Maarouf deposit (Algeria). This proximity has been a fundamental motivation for the completion of the current study. The object of research is the quality of iron products from Sidi Maarouf. The research is aimed at developing a treatment process aimed at improving the quality of iron products from Sidi Maarouf, while reducing the impurities of quartz and clay present in this ore. This approach will be based on an approved technological treatment scheme, implemented through an experimental approach to ensure reliable results that meet the requirements of the steel industry. The problem issue revolves around the difficulties encountered in the production of steels due to the natural characteristics of the raw material. In the absence of a physico-chemical characterization of the Sidi Maarouf iron ore deposit, samples taken undergo a series of thorough analyses, including microscopic examinations, X-ray diffraction (XRD), as well as additional chemical analyses using X-ray fluorescence (XRF). The identified minerals are predominantly composed of hematite in terms of iron. As for the gangue, it is mainly composed of calcite and quartz. Through to the pre-treatment process involving washing, we have successfully removed lightweight particles, resulting in a concentrate containing dense particles. This approach was crucial in achieving satisfactory results during the high-intensity dry magnetic separation. As a result of the research it is shown that the enrichment of the Sidi Maarouf iron ore through high-intensity dry magnetic separation, a final concentrate was obtained with a Fe2O3 content exceeding 67 %, along with a significant reduction in silica impurities to 0.92 % and alumina to 0.77 %. It was concluded that this concentrate, derived from the -1+0.5 mm fraction and obtained under a current intensity of 12 A, meets the requirements of the steel industry. Following the work carried out, it is found that the methods of valorization of iron ore through mineralogical processes consistently require a high level of efficiency and performance in terms of equipment and characterization of the products obtained. In the future, iron ore processing will be conducted using innovative methods, integrating advanced technologies to enhance its characteristics while adopting environmentally friendly practices.

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Section: Introductionmentioning

confidence: 99%

Investigation of physicochemical characterization and magnetic enrichment of iron ore from Sidi Maarouf deposit

Chaib,

Bouabdallah,

Ferfar

et al. 2024

TAPR

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“…Thus, considering the filling material within the joints and increasing the average distance between the joint sets and bedding planes are crucial for achieving improved breakage after blasting. By understanding the effects of discontinuities, mining operations can reduce production costs, optimize mining processes, and enhance productivity [20], [21]. Previous studies, such as those conducted by Akbari [22] and Souza et al [23], have demonstrated the significance of discontinuities in optimizing mining processes, highlighting their influence on blast energy and the distribution of blast results.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the blast fragmentation quality of discontinuous rock mass: Case study of Jebel Bouzegza Open-Cast Mine, North Algeria

Bedri,

Hamou,

Filali

et al. 2023

Min. miner. depos.

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Purpose. The research aims to investigate the impact of discontinuity characteristics, including dip direction, dip and joint spacing, on the size distribution of blasted fragments in mines and quarries. The accuracy of blasting results is essential for efficient operations, and understanding these factors can enhance blast fragmentation outcomes. Methods. We conducted our research at the Jebel Bouzegza C01 aggregate quarry, analyzing eight blast benches. To determine fragment sizes, we employed image processing tools to calculate P50, P80, and Pmax sizes. Additionally, we used the Kuz Ram model to predict the average size (X50) and the percentage of oversize fragments (Pmax). The determination coefficient (R²) is calculated for both methods to assess their correlations with dip direction. Findings. Our analysis revealed significant findings related to the impact of discontinuity characteristics on fragment size distribution. The dip direction exhibits the strongest correlation of Pmax size when using Split Desktop and X50, as well as Pmax% with the Kuz Ram model. Joint spacing also plays a role in influencing blast fragmentation outcomes, although its effect depends on the infill materials. Originality. This research contributes to the understanding of factors affecting blast fragmentation outcomes. The research focuses on dip direction, dip and joint spacing characteristics, and adds to existing knowledge in this field. Practical implications. The findings of this research have practical implications for mines and quarries, offering valuable guidance for site investigations and optimization of blasting practices. By assessing properties such as dip direction and joint spacing, blasting operations can be enhanced to achieve more efficient and accurate results.

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“…The sustainability of modern human civilization depends heavily on the availability and management of Earth's natural resources (Kallel et al 2017;Besser et al 2021;Ncibi et al 2021;Bagwan et al 2023). Nearly every industry requires minerals as essential inputs for their operations (Zeqiri et al 2019;Fredj et al 2020;Kerbati et al 2020;Zerzour et al 2020Zerzour et al , 2021. Valuable chemical elements and useful minerals can be found in rocks, soils, and water (Nekkoub et al 2020;Benmarce et al 2021;Orabi et al 2023;Sankar et al 2023).…”

Section: Introductionmentioning

confidence: 99%

Geological and Mineralogical Analysis of Phosphorites in the Jebel Dhyr Syncline, Eastern Algerian Atlas

Boulemia,

Hadji,

Bouhlal

et al. 2023

Mineralogia

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The characterization of phosphorite features within specific North African sedimentary series remains incomplete. Hence, the primary aim of this research is to determine the composition of powder patterns and phosphatic allochem fragments within the Jebel Dhyr syncline, situated in northeastern Algeria. By focusing on this region, the study endeavors to investigate the mineralogical properties and geochemical aspects of Paleocene-Eocene phosphorites in the broader context of North Africa. The methodology employed encompasses geological, petrographic, geochemical, and mineralogical analyses of the rocks. To achieve this objective, we have employed various techniques including thin section analysis, atomic absorption spectrometry, and X-ray diffraction (XRD). The geological section across the Jebel Dhyr area has revealed a succession of horizontally layered rocks. These rocks consist of eight prominent phosphorite layers interspersed with carbonate formations. Additionally, occasional thin layers of flint can be observed within these carbonate layers. XRD analysis of the whole rock established the presence of apatite group minerals such as hydroxylapatite, fluroapatite, francolite, and dahllite. Other minerals identified include carbonates, quartz, zeolites, feldspar, clays, sulphides, and gypsum. XRD recordings on the phosphatic allochem grains (pellets, coprolites, intraclasts, and shark teeth) identified different mineral phases, with coprolites and pellets showing hydroxylapatite and fluorapatite, sometimes associated with dahllite, while granules of different forms revealed hydroxylapatite associated with fluorapatite or francolite. Teeth from the Jebel Dhyr phosphate beam showed the systematic presence of fluorapatite. This study provides valuable information for the comprehensive utilization of phosphorus resources in the Algeria-Tunisia border.

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Semi-variograms and kriging techniques in iron ore reserve categorization: application at Jebel Wenza deposit

Cited by 16 publications

References 32 publications

Investigation of physicochemical characterization and magnetic enrichment of iron ore from Sidi Maarouf deposit

Investigation of physicochemical characterization and magnetic enrichment of iron ore from Sidi Maarouf deposit

Optimizing the blast fragmentation quality of discontinuous rock mass: Case study of Jebel Bouzegza Open-Cast Mine, North Algeria

Geological and Mineralogical Analysis of Phosphorites in the Jebel Dhyr Syncline, Eastern Algerian Atlas

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