Thus it is associated with the same regions as gold-bearing quartz. 3. Slate. credit: Caitlin Childs. Slate is another stone that can be considered auriferous, depending on the exact formation. In this case, gold ends up deposited in the thin faults and cracks in the slate over time. Slate is actually the metamorphic form of shale.
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In gold-bearing quartz samples, the concentrations of Cu, As, Ag, and Sb are positively correlated with Au at the degree of shear deformation. According to data gathered from the fire assay ...
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Epigenetic, N-S, NNE-SSW quartz veins crosscut metapelites and metagabbro in Maru area. The objectives of this work were to study field, mineralogy, and geochemical characteristics of gold bearing quartz veins and soils. Euhedral and polygonal magnetite with hematite constituted the major ore minerals. Quartz occurred as main gangue …
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(2014) carried out mineralogical and geochemical characterization of gold-bearing quartz veins and soils in parts of maru schist belt Area, north western Nigeria with the aim of
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This research examined field characteristics, mineralogical and geochemical composition of gold bearing quartz veins and soils and used the aforementioned to …
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Epigenetic, N-S, NNE-SSW quartz veins crosscut metapelites and metagabbro in Maru area. The objectives of this work were to study field, mineralogy, and geochemical characteristics of gold bearing ...
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Gold bearing quartz veins and soils samples were crushed, sieved, pulverised with hardened steel, and allowed to pass through 75 [micro]m. Thereafter, major oxide and some trace elements concentration of majority of gold bearing quartz veins collected were analysed with two wave length dispersive X ray fluorescence …
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Gold bearing quartz veins and soils samples were crushed, sieved, pulverised with hardened steel, and allowed to pass through 75 𝜇m. Thereafter, major oxide and some trace elements concentration of …
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bearing quartz vein in Bin Yauri an d Okolom in the Pan-Africa n domain of western Nigeria suggests that gold mineralization in the two l ocalities and in th e Nigeria schist belts in general may ...
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The Zuru Schist Belt is one of the gold-bearing schist belts in northwestern Nigeria. The gold mineralisation is mainly associated with NE-trending shear zones and is hosted in …
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The metasedimentary rocks of the Atacora structural unit around Natitingou in Benin are composed of quartzites, quartz muscovite schist and mica schist. Being auriferous, the petrographic, geochemical and structural features of these rocks were investigated to ascertain the source of gold and its relation to structural deformations. …
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Non-aqueous CO2 and CO2-rich fluid inclusions are found in the vein quartz hosting mesothermal gold-sulphide mineralization at Bin Yauri, northwestern Nigeria. Although mineralizing fluids responsible for gold mineralization are thought to be CO2-rich, the occurrence of predominantly pure to nearly pure CO2 inclusions is nevertheless unusual …
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Nigerian gold mineralization . ... (Kwaga), the gold-bearing quartz bodies (en-echelon veins, boudins, and silici ed phyllites) are hosted by a series of narrow shear .
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This paper provides chemical and mineralogical studies on Gold-bearing rock ore. The samples used was sourced from Iperindo at Ilesha Local Government Area of Osun state, Nigeria. 500g of the ore ...
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I generally consider quartz to be a good indicator once I know that I am in a known gold bearing area, and I have identified that there is a relationship between gold and quartz in that particular area. Let me explain that a bit more for clarification. There are some gold bearing areas where gold and quartz are commonly found together.
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The origin of some Nigerian gold minera- lization by these metamorphic processes seems probable, as examplified by the Okolom-Dogonda- Ji vein mineralization. ... [JH-~ Sil, icified ph yl lit e ~__o~_ Granite gneiss Exo|anation phyllite .~'/~old--bearing quartz veins II Gold-barren quartz veins "~~-. Joints q Roads 60" --~--- Strike/dip of ~o ...
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In the Pontal auriferous lode, dominant saccharoidal quartz is associated with oligoclase, biotite, hornblende, tremolite-actinolite, sulphides (less than 2%), and disseminated native gold. Four main types of fluid inclusion have been distinguished based on their habit, distribution and spatial relation-ship with gold particles.
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A gold metallorgeny province (in Nigeria) is a notable concentration of gold deposits within a large region or belt with one of its dimensions reaching hundredths of …
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Geological mapping around the gold-bearing main quartz vein of Alagbede area, located about 25km northeast of the Kwara State University, Malete shows that the Basement Complex rocks comprised the ...
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These gold bearing quartz veins are associated with metamorphosed rocks which range in composition from semi pelitic-pelitic-mafic to ultramafic. ... In Nigeria, several studies on Gold ...
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Geological and geochemical studies of gold mineralization in Bode-Saadu axis, Southwestern Basement Complex, Nigeria have been conducted in order to study their mode of occurrence, structural...
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Article: Geology and genesis of gold-bearing quartz veins at Bini Yauri and Okolom in the Pan-African domain of western Nigeria. Geologie en Mijnbouw 67(1): 41-51 ... Garba, I. 1988: The variety and possible origin of the Nigerian gold mineralization . Okolom-Dogonadji and Waya veins as case studies - Variété et origine possible de la ...
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In western Nigerian, gold deposit exists as primary (in quartz veins) and secondary (as placers) deposits. The gold-bearing quartz veins are associated with …
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In Nigeria, orogenic gold mineralization is mainly controlled by lithologies and geologic structures in the schist belts. The Kushaka schist belt exhibits gold mineralization mainly in veins and stockworks and in placer deposits found in eluvial and alluvial sediments [1,2,3,4,5,6,7].The Kushaka greenschist belt is a Neoproterozoic to early …
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Structurally controlled, gold-bearing quartz veins were measured and studied in the area from an extensive geological ground investigation. Field and petrographical studies indicate that the...
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Alagbede gold deposit located about 25km northwest of Malete in Moro Local Government Area of Kwara State, West Central Nigeria consists of gold-bearing quartz veins as stringers set in ...
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The Bakoshi-Kundila Au deposit is located in the Nigerian Shield in West Africa. In this deposit, Au-bearing pyrite contains inclusions of Au-rich hydrothermal …
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Gold is artisanally mined from eluvial deposits within Osu–Amuta–Itagunmodi areas of Ilesa Schist Belt, southwestern Nigeria. Mine site selection and mining …
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Geology and genesis of gold bearing quartz ... and Okolom primary gold occurrences are localized within the Precambrian to Lower Paleozoic schist belts of western Nigeria. Gold-bearing veins in ...
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Although gold production in Nigeria began in 1913 and peaked in the 1930s (Ministry of Mines and Steel Development (MMSD) ... Akande SO, Fakorede O, Mucke A (1988) Geology and genesis of gold bearing quartz veins at Bin Yauri and Okolom in the Pan African domain of Western Nigeria. Geol Mijnb 67:41–51. Google Scholar Akinlalu …
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