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constrain the magnetite source. This new data contributes to improve our understanding of the magnetite formation and con‐ trolling factors for the magnetite composition of the Bipindi BIFs deposited at the margin of the Congo craton. 1 GEOLOGICAL SETTING 1.1 Regional Geology
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The Sanaga iron ore prospect within the Palaeoproterozoic Nyong Series in Cameroon is a magnetite-dominated iron ore deposit hosted within granodioritic gneisses with an estimated resource of 82.9 Mt @ 32.1% Fe. The main ore mineral being magnetite, provides an opportunity to study the magnetite texture and iron-oxygen isotope …
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In Cameroon, IF occurrences have been reported within the Ntem complex (northern edge of the Congo Craton) greenstone belts (Suh et al. 2008(Suh et al., 2009Chombong and Suh 2013;Anderson et al ...
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Two types of Fe-mineralization as silicified veins crosscut the above rocks: hematite± magnetite quartzites with primary hematite enclosing magnetite relicts contain high average Fe 2 O 3 (69.05 ...
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The Nkout West iron deposit of the northern edge of the Congo craton in southern Cameroon forms part of the northwest plunging isoclinal mega fold composed of metamorphosed banded iron formations (BIFs), which have been deformed and metamorphosed, resulting in recrystallized magnetite, quartz and silicates. Here, we …
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The world-class El Laco iron deposit in the ELVC consists of six massive magnetite ore bodies that are spatially associated with the pre-existing subvertical annular collapse structures and ...
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The purpose of this work is to increase the compressive strength and improve the microstructure of geopolymer materials by adding hematite and magnetite gels, as well as their powders, cured at 80 °C. Hematite and magnetite are dissolved in 10 M sodium hydroxide. Dried gels of hematite and magnetite were then ground to …
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Gouap BIFs host high- grade siliceous ore with magnetite being the predominant mineral. This also constitutes a new result for the iron deposit in Cameroon.
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Akom 2 displays massive iron ore mineralisation in the form of magnetite. MMEC historically completed the first phase of exploration, which included magnetic surveys, mapping and exploration drilling.
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Microchemical Fingerprint of Magnetite Bearing Iron Ore Deposit from the Sanaga Prospect, Southern Cameroon: Assessment of Iron Ore-forming Conditions April 2022 DOI: 10.12691/jgg-10-1-5
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Two types of Fe-mineralization as silicified veins crosscut the above rocks: hematite± magnetite quartzites with primary hematite enclosing magnetite relicts contain high average Fe 2 O 3 (69.05 ...
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Magnetite (40–50 vol %) is the main iron mineral. It appears as subhedral crystals, commonly replaced by geothite/limonite (Fig. 3c). Quartz (30–35 vol %) exhibits fine-grained crystals, disseminated within the rock matrix. Quartz is also found as inclusions in magnetite, indicating that the latter was the last mineral phase to crystallize.
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The Paleoproterozoic Nyong Complex (NyC) is located at the northwestern corner of the Congo Craton in southern Cameroon (Fig. 1).It is part of the N-S trending Eburnean-Trans Amazonian West Central African Fold Belt reported in both West Africa and NE Brazil (Feybesse et al. 1998; Barbosa and Barbosa 2017; Bouyo Houketchang …
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Magnetite is denser (5.2 g/cm 3, Bottinga and Weill, 1970; Knipping et al., 2019) than sulfide (~4.0–4.5 g/cm 3) and would accumulate at the bottom of a melt-rich magma reservoir. As such, magnetite with high V and Ti contents in the Y2 east massive ore probably crystallized as early as the Y2 disseminated ore, and accumulated at the …
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2. Geological Background 2.1. Regional Geology. The Sanaga magnetite bearing iron ore deposit lies within the Paleoproterozoic Nyong complex, which constitute the northwestern edge of the Archaean Congo Craton in southern Cameroon ().The Nyong complex forms part of the Precambrian geology of Cameroon; it constitutes the main …
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This project has actually and technically started on the 16 of November 2023 and is based on reserves estimated at around 632.82 million tonnes of magnetite with an average iron content of 33%.
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The Lobe ore is located in the Kribi area on the southwest coast of Cameroon where it has approximately 600 million tons of magnetite. According to the contract, the corporation poured an investment of more than USD 700 million to cover an iron ore processing plant, a 20-kilometer transportation pipeline, a 60,000-kilowatt …
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A state-of-the-art review of intrinsic and enhanced electrical properties of asphalt materials: Theories, analyses and applications. Feng Chen, Romain Balieu, in Materials & Design, 2020. 4.1.2.2 Magnetite. Magnetite (Fe 3 O 4) is a rock mineral that contains ferrous (FeO) and ferric (Fe 2 O 3) iron species.As reported in [89], the resistivity ρ of Fe 3 O 4 is …
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enigmatic magnetite mineralisation hosted within gneissic rocks in the Nyong Unit in southern Cameroon. The mineralisation occurs as magnetite-bearing calc–silicate gneisses.
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Sanaga magnetite bearing iron ore deposit lies within the Paleoproterozoic Nyong complex, which constitute the northwestern edge of the Archaean Congo Craton in southern Cameroon (Figure 1).The ...
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Magnetite is an accessory mineral commonly encountered in igneous, metamorphic and sedimentary rocks and it is prevalent in hydrothermal magnetite deposits (Nadoll et al. 2012; Liu et al. 2015), BIFs (Klein 2005; Chung et al. 2015), magmatic Fe–Ti–(V) oxide deposits and Kiruna-type deposits.Magnetite is also a common mineral …
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magnetite, iron oxide mineral (FeFe 2 O 4, or Fe 3 O 4) that is the chief member of one of the series of the spinel (q.v.) group.Minerals in this series form black to brownish, metallic, moderately hard octahedrons and masses in igneous and metamorphic rocks and in granite pegmatites, stony meteorites, and high-temperature sulfide veins. …
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Increased cost associated with the used of high quality materials have led to the need for local soils to be used in civil engineering works. In this paper, geo-chemical approaches coupled with conventional geotechnical techniques has been used to investigate vertical and lateral peculiar engineering index properties (EIP) of micaschist …
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Nyong Unit is located west of the Ntem complex ( Figure 2) and constitutes the main Neoarchaean to Palaeoproterozoic Unit in Cameroon ( Toteu et al. 1994;Lerouge et al. 2006).According to Lasserre ...
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10 Two-mica granites from the Nkambe area (West Cameroon) comprise two-mica granite and magnetite-rich two-mica granite. They They 11 are composed of K-feldspar, phengite, biotite and quartz.
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LES GNEISS À MAGNÉTITE DE AKO'ABETE (SUD DU CAMEROUN) : ÉTUDE PÉTROGRAPHIQUE ET STRUCTURALE ; IMPLICATIONS DANS L'EXPLORATION DU MINERAI DU FER. Par Mamadou TRAORE Doctorant a Çukurova ...
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The Sanaga iron ore prospect is a recent discovery in the Nyong Series with a resource estimated at 82.9 Mt at 32.1% Fe and whose origin remains debatable. The mineralization occurs as NE-SW oriented discontinuous lenticular bodies of magnetite-bearing pyroxene-gneisses (MPG) hosted by ortho-derived gneisses. Rare amphibolites …
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"Two iron deposits within the Precambrian mineral belt of Cameroon are described in detail for the first time: the Archean Metzimevin replacement iron deposit enclosed in Fe-enriched itabirite, and the Proterozoic granite-hosted, shear zone-related Mayo Binka magnetite deposit.
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The total Fe 2 O 3 values of ∼95 and 90 wt-% and low SiO 2 values of ∼ 0.3 and 3 wt-% obtained for the two massive magnetite ore samples, NYP01 and NYP02, respectively, are higher than high ...
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Sanaga magnetite bearing iron ore deposit lies within the Paleoproterozoic Nyong complex, which constitute the northwestern edge of the Archaean Congo Craton in southern Cameroon (Figure 1).
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