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The use of distinct spectral reflectance and absorption feature in ETM+ band ratio 5/7 and 3/l highlights the presence of clay and iron minerals which is used to detect and map hydrothermal alteration zones by [6].In Nigeria, there has been very little research in using remote sensing techniques to identify mineral deposits.One of the few ...


Mar 01, 2021· Introduction. Mineral deposits commonly show a spatial association with hydrothermal alteration of the surrounding rocks .Also, host rocks of hydrothermal mineral deposits commonly show evidence of chemical interactions with hydrothermal fluids that resulted in the deposition of the minerals .The spatial distribution of hydrothermally altered …


Coal Mineral Deposits In Nigeria And Its Uses. Coal Deposits - Some Africa countries like Nigeria is blessed with coal rich states especially Enugu which is known as the "the coal city" because of its vast coal deposits, other states include; Benue, Kogi, Delta, Kwara, Plateau, Abia, Anambra, Bauchi, Edo,...


Sep 19, 2020· Many mineral deposits do not form from a magma but from hydrothermal fluids, which can bear a genetic relationship to magmatism or can be completely unrelated to any magmatic activity. While the term hydrothermal simply means "hotter than the surroundings", the term fluid is used by most geoscientists in a rather loose way and encompasses ...


Hydrothermal mineral deposit, any concentration of metallic minerals formed by the precipitation of solids from hot mineral-laden water (hydrothermal solution).The solutions are thought to arise in most cases from the action of deeply circulating water heated by magma. Other sources of heating that may be involved include energy released by radioactive decay or by …


widely on the mineral deposits of Nigeria. He obtained a B.Sc. (Hons.) degree in Geology in 1969 from the premier University of Ibadan, Nigeria, and …


Jan 01, 1985· Earlier studies of hydrothermal mineral deposits including those of Nigerian ring complexes show that the same magmatic process was often the source of a number of phases which differ both in temperature and in min- eral association. These mineralization phases ultimately contribute to the formation of the same ore body.


HYDROTHERMAL MAPPING OF MARU SCHIST BELT, NORTH-WESTERN NIGERIA USING REMOTE SENSING TECHNIQUE ... 3 Department of Physics, Ahmadu Bello University, Zaria, Kaduna, Nigeria ABSTRACT Mineral deposits are well known to be associated with hydrothermal alteration. In north-western Nigeria however, the Maru schist belt is known to …


Moreover, the two types of mineral deposits presented in this contribution show mineralization styles that comprise multiband vein infills, vein-like hydrothermal and …


Hydrothermal Mineral Deposits Principles and Fundamental Concepts for the Exploration Geologist. Authors: Pirajno, Franco Free Preview. Buy this book eBook 71,68 € price for Spain (gross) Buy eBook ISBN 978-3-642-75671-9; Digitally watermarked, DRM-free ...


In Nigeria, there has been very little research in using remote sensing techniques to identify mineral deposits. One of the few carried out was (Kudamnya et al., 2014) who applied band ratio technique and colour composite to map location of hydrothermal alteration within the Maru schist belt of Northwest Nigeria.


Preliminary investigations in the Younger Granite Province of Nigeria have revealed that precious and semi-precious minerals like rubies, sapphires, emeralds, aquamarine, zircon and fluorite can be found in the region. The gem minerals are shown to have been produced either by direct deposition along fissures, veins and greisens by hydrothermal fluids or as a result of …


hydrothermal ore deposits. 1. Introduction Submarine hydrothermal ore deposits (e.g. Kuroko deposits: stratabound massive sulfate-sulfide deposits in Japan) are characterized by a heterogeneous distri-bution of minerals (mineral and metal zoning) in the orebodies. Barite, anhydrite, and quartz are the most common minerals in submarine ...


In contrast, mineral deposits around neighbouring fumarole vents and sites of hydrothermal alteration include clays (kaolinite), sulfate minerals (jarosite, alunite), and Fe-oxyhydroxides linked to rising acidic fluids. When lake level falls, the zone of acidity moves downwards and may overprint older alkaline spring deposits.


in ore deposit research. At the tectonic scale of mineral systems, all hydrothermal gold deposits are shown to be inter-related in that they formed progressively during the evolution of subduction-related processes along convergent margins. Porphyry-related systems formed initially from magmatic-


part of the Schist belt of Nigeria, this study attempts to use aeromagnetic data to delineate the various structures that favour hydrothermal gold mineralization in the area. Hydrothermal mineral deposits are those in which hot water serves as a concentrating, transporting and


The mineral deposits are classically separated into pri- ... IC in granitic rocks (Nigeria) are of minor importance. The subtype Type IIA of metamorphic deposits is re-lated to hydrothermal fluid circulation at high temper-ature, in thrust fault and/or shear zones within


Jul 31, 2017· I am pleased to announce a Special Issue on "Geochemistry and Mineralogy of Hydrothermal Metallic Mineral Deposits." The geochemical and mineralogical variation both within and among hydrothermal ore deposits are key attributes. Our understanding of these attributes, for both ore and gangue, play an important role in carrying out exploration ...


A semi-geological study revealed characteristic hydrothermal vein deposits of the complex sulphide ore. Mineralogical analysis revealed the presence of siderite, sphalerite, galena, quartz, and traces of pyrite and copper bearing minerals. X-ray diffractometry showed that sphalerite mineral in the ore occurs as ferrous sphalerite with varied ...


Satellite Remote Sensing for Mineral Deposit Assessment of Clay in Mubi Local Government Area of Adamawa State, Nigeria October 2015 DOI: 10.5923/j.geo.20150501.03


Geosciences 2015, 5(1): 26-30 DOI: 10.5923/j.geo.20150501.03 Satellite Remote Sensing for Mineral Deposit Assessment of Clay in Mubi Local Government Area of Adamawa State, Nigeria Adegoke Kayode Martins1,*, Bulus Luka Gadiga2 1 Department of Surveying and Geomatics, Federal Polytechnic, Mubi, Nigeria 2 Department of Geography, Adamawa State University, …


Feldspar is one of such non-metallic mineral resources which can be found in Nigeria and in some African countries like South Africa and Morocco. Feldspar is formed in rocks and Nigeria is a country with numerous rock deposits, thus Feldspar deposits can be found in Ajaokuta LGA in Kogi, Abia, Ogun, and Ondo State.


sedimentary formation of southeastern Nigeria. The region is noted for Lead-Zinc mineral (Pb/Zn) mining activities by the locals. Pb/Zn deposits have been found in the lower Abakaliki Basin where metallic ores occur as epigenetic fracture controlled vein deposits, and are restricted to gently dipping


A hydrothermal replacement deposit occurs when hot circulating aqueous solutions replace the original rock with new mineral species. This typically occurs in more soluble rocks such as limestone. Hydrothermal replacement deposits are a …


Jul 06, 2019· Fluorite Mineral Deposits in Nigeria with their Locations and Uses Fluorite Natural Resources In Nigeria, Its Occurrence And Uses Africa as a whole including Nigeria is richly blessed with abundant natural resources both vastly deposited ones and in traces and fluorite is one of them, fluorite is found in traces in Taraba State, the northern ...


Dec 24, 2020· In Northern Nigeria, the geological and geomorphological setting makes remote sensing a more suitable approach for mineral exploration. This can be attributed to low vegetation cover, as well as the intermittent affiliation of most mineral deposits to hydrothermal alterations (Akande and Fakorede, 1988; Garba, 1988; Garba, 2003).


Skarn Deposits: Metallic deposits associated with skarn rock-forming minerals Fabrics and Mineral Constituents of Skarn Colour: V ariable, ranges from green to red but occas ionally, …


Clay, in regard to its origin is unique. The kaolin of the mine of Ajebo has a hydrothermal geological formation. It presents itself a fragile and crumbly material, of whitish colour. Therefore, the objective of this paper was to evaluate the clay mineral of Ajebo deposit, its microstructure using scanning electron microscopy, X-ray diffraction and thermal analysis (DSC/TG).


Major mineral deposits of the world; Major deposits of W. 75 records match. Name of deposit Deposit type Location State or Province Country; Karezas: Igneous: Google Maps ... Nigeria: Agylkinskoe: Hydrothermal: Google Maps (not specified) Russia: Balcan (Balkan) Hydrothermal: Google Maps (not specified) Russia: Barun-Shiveinsky: Hydrothermal ...


yaet.al., 2013) applied band ratio, colur composite to map location of hydrothermal al-teration within the Maru schist belt of Northwest Nigeria. For this reason, this work/research was carried out with the aim of mapping and detecting the distribution of hydrothermally altered mineral deposit zones within the


Also taken from Williams, Curtis "Hydrothermal Alteration and Mineral Deposits." (2002). Typically, these "hydrothermal fluids" or "aqueous solutions" carry many metals in addition to "silicates and other non-metallic materials" (Jones and Hutton). The different igneous rock compositions can range in a variety of minerals, when ...


It occurrences arise from the hydrothermal metasomatism or diagnosis of limestone in such places. Also, the occurrences of dolomites deposits have been discovered in different areas in Nigeria, which among them are Alagutan dolomite in Oyo state, Oreke dolomite in Ifelodun Local government area, Kwara State, Nigeria, etc.