Academic literature on the topic 'Geology – Ghana'

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Journal articles on the topic "Geology – Ghana"

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Appiah, H. "Geology and mine exploration trends of Prestea Goldfields, Ghana." Journal of African Earth Sciences (and the Middle East) 13, no. 2 (January 1991): 235–41. http://dx.doi.org/10.1016/0899-5362(91)90008-m.

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Amponsah, Prince Ofori, Stefano Salvi, Didier Béziat, Luc Siebenaller, Lenka Baratoux, and Mark W. Jessell. "Geology and geochemistry of the shear-hosted Julie gold deposit, NW Ghana." Journal of African Earth Sciences 112 (December 2015): 505–23. http://dx.doi.org/10.1016/j.jafrearsci.2015.06.013.

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Dzigbodi-Adjimah, Komla. "Geology and geochemical patterns of the Birimian gold deposits, Ghana, West Africa." Journal of Geochemical Exploration 47, no. 1-3 (April 1993): 305–20. http://dx.doi.org/10.1016/0375-6742(93)90073-u.

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Bowell, R. J. "Sulfide Oxidation and Production of Gossans, Ashanti Mine, Ghana." International Geology Review 36, no. 8 (August 1994): 732–52. http://dx.doi.org/10.1080/00206819409465485.

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Boamah, Daniel, and Christian Koeberl. "Geology and geochemistry of shallow drill cores from the Bosumtwi impact structure, Ghana." Meteoritics & Planetary Science 38, no. 8 (August 2003): 1137–59. http://dx.doi.org/10.1111/j.1945-5100.2003.tb00304.x.

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Tunks, Andrew J., David Selley, Jamie R. Rogers, and Gary Brabham. "Vein mineralization at the Damang Gold Mine, Ghana: controls on mineralization." Journal of Structural Geology 26, no. 6-7 (June 2004): 1257–73. http://dx.doi.org/10.1016/j.jsg.2003.11.005.

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Jones, W. B. "The origin of the Bosumtwi Crater, Ghana—an historical review." Proceedings of the Geologists' Association 96, no. 3 (January 1985): 275–84. http://dx.doi.org/10.1016/s0016-7878(85)80009-2.

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Nzulu, Gabriel K., Babak Bakhit, Hans Högberg, Lars Hultman, and Martin Magnuson. "Elucidating Pathfinding Elements from the Kubi Gold Mine in Ghana." Minerals 11, no. 9 (August 24, 2021): 912. http://dx.doi.org/10.3390/min11090912.

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X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray spectroscopy (EDX) are applied to investigate the properties of fine-grained concentrates on artisanal, small-scale gold mining samples from the Kubi Gold Project of the Asante Gold Corporation near Dunwka-on-Offin in the Central Region of Ghana. Both techniques show that the Au-containing residual sediments are dominated by the host elements Fe, Ag, Al, N, O, Si, Hg, and Ti that either form alloys with gold or with inherent elements in the sediments. For comparison, a bulk nugget sample mainly consisting of Au forms an electrum, i.e., a solid solution with Ag. Untreated (impure) sediments, fine-grained Au concentrate, coarse-grained Au concentrate, and processed ore (Au bulk/nugget) samples were found to contain clusters of O, C, N, and Ag, with Au concentrations significantly lower than that of the related elements. This finding can be attributed to primary geochemical dispersion, which evolved from the crystallization of magma and hydrothermal liquids as well as the migration of metasomatic elements and the rapid rate of chemical weathering of lateralization in secondary processes. The results indicate that Si and Ag are strongly concomitant with Au because of their eutectic characteristics, while N, C, and O follow alongside because of their affinity to Si. These non-noble elements thus act as pathfinders for Au ores in the exploration area. This paper further discusses relationships between gold and sediments of auriferous lodes as key to determining indicator minerals of gold in mining sites.
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Agomor, A. K., V. V. Gordiyenko, and V. G. Lazarenkov. "REGIONAL MINERALOGICAL AND GEOCHEMICAL ZONING OF A PEGMATITE FIELD IN SOUTHERN GHANA." International Geology Review 29, no. 2 (February 1987): 151–59. http://dx.doi.org/10.1080/00206818709466132.

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Yidana, Sandow Mark. "Groundwater classification using multivariate statistical methods: Southern Ghana." Journal of African Earth Sciences 57, no. 5 (July 2010): 455–69. http://dx.doi.org/10.1016/j.jafrearsci.2009.12.002.

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Dissertations / Theses on the topic "Geology – Ghana"

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Boakye, Emmanuel Baffour. "Statistical and geostatistical evaluation of an alluvial gold deposit in the central region of Ghana." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314720.

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Poyrazli, Hatice. "Recontruction of Lake-Level Variation and Shoreline Position of Lake Bosumtwi, Ghana for the Last 0.5 Ma." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1289853245.

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Koranteng-Yorke, John Bernard. "A proposed framework for asphaltic concrete pavement design for tropical soils : case study of Ghana." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3776/.

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Fundamental differences exist in soil types formed under temperate and tropical climatic conditions. Consequently, their use for road pavement design will require different approaches and standards. The absence of a systematic approach in addressing tropical pavement design requirements and the use of temperate design standards for tropical countries has led to early failure of road pavements in Ghana and other tropical countries. However, few studies have been carried out on developing standards based on field studies to determine key design parameters to address challenges of tropical pavement design. The aim of this research is to evolve a rational approach using mechanistic-empirical principles to design pavements for tropical laterite soils. The main objectives were therefore to determine the key pavement design parameters for Ghana through empirical studies as well as carry out technical and economic analysis to establish optimum designs for the various climatic zones of Ghana.
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Sam, Frederick. "The assessment of potential impacts of open cast gold mining on the regional groundwater flow system in hard rock environments : with special reference to Ghana." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/4486/.

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We consider a simple semi-empirical scoping calculation in conjunction with mathematical models to estimate the radius of impact (Ri) and to determine the circumstances under which gold mines in Ghana are likely to have adverse effect on water levels and volumes in surrounding villages/farms. The approach involves the assessment of local mine geometries, collation and examination of hydraulic conductivity data and the assessment of recharge infiltration rate. Most of the models used with the entire conductivity dataset (Group A) predicted very close radius of impacts to mine with less than few 100m with a median distance of 400m from the mine’s edge. Although it is expected that 25% of cases could reach up to 2km and further if the system was anisotropic. Derogation of water level and volume is more of a problem for Group B and C aquifer systems of higher conductivity values. Model results show that 50% of cases could reach up to 3.6km with a range of 2.7km to 5.1km, and 3km with a range of 2km to 4.6km from mine centre respectively. Nevertheless, Ri could reach 7.6km and further in extreme cases if the system was anisotropic. With regards to Ghana, by constraining conductivity values using water volumes produced by mines in Ghana, and comparing with the model output, it is tentatively suggested that the most likely Ri values are those calculated with the Group B dataset. It should, however, be noted that this results are very sensitive to hydraulic conductivity, and therefore there is the need in Ghana to publish conductivity and volume data to enable suggestions from this work to be confirmed.
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Abebe, Nardos Tilahun. "Paleohydrology of West Africa Using Carbonate, Detrital and Diagenetic Minerals of Lake Bosumtwi, Ghana." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1271102396.

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Basile, Christophe. "Analyse structurale et modélisation analogique d'une marge transformante : l'exemple de la marge de Côte d'Ivoire - Ghana." Phd thesis, Université Rennes 1, 1990. http://tel.archives-ouvertes.fr/tel-00594681.

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L'analyse d'un réseau dense de profils de sismique réflection permet d'établir une stratigraphie acoustique détaillée de la marge continentale profonde de ,Côte d'Ivoire-Ghana, et de mettre en évidence les principales caractéristiques structurales de cette marge transformante: zone étroite extrêmement déformée au sommet de la pente continentale, faisceaux décrochants dextres à l'intérieur et à la lim ite Nord de la ride marginale, bassins asymétriques localement repris en compression (plissement) dans le bassin ivoirien profond. Parallèlement, les structures associées à une marge transformante sont étud iées grâce à une modélisation expérimentale: dans un modèle analogue à une croûte continentale d'épaisseur. constante, le mouvement transformant est accommodé par une "zone principale de déplacement", zone de cisaillement dont la déformation est analysée en détail, y compris pour des déplacements importants. Par contre, à l'intersection de segments de marges transformant et en extension apparait une "terminaison en queue de cheval", formée de décrochements courbes qui structurent par transliition et rotation de blocs un relief analogue aux rides marginales des marges transformantes; ce relief est ultérieurement recoupée par une "zone principale de déplacement". De plus, et dans certaines conditions géométriques, des structures distensives antérieures peuvent être remobilisées en cisaillement à proximité du secteur transformant. La comparaison des résultats expérimentaux et des données marines permet l'interprétation de ces dernières dans le cadre d'une reconstitution de la formation de la marge transformante de Côte d'Ivoire-Ghana: lors du rifting dans le bassin ivoirien profond, des décrochements courbes apparaissent successivement à l'avant de la zone transformante: ils forment à la limite du bassin en extension une ''terminaison en queue de cheval" qui construit la ride de Côte d'Ivoire-Ghana, ainsi que les rides mineures qui la prolongent à l'Ouest Certaines structures distensives antérieures sont également remobilisées en cisaillement à proximité de cette terminaison. Ultérieurement, le mouvement coulissant est entièrement accommodé par une "zone principale de déplacement" déformant le sommet de la pente continentale et de la ride marginale.
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Van, Bart Adrian. "Structure, stratigraphy and sedimentology of the paleoproterozoic Nsuta manganese deposit, Ghana." Thesis, 2008. http://hdl.handle.net/10210/812.

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The Nsuta manganese deposit is located in the Western Region of Ghana, approximately five kilometers south of Tarkwa Goldfields. The deposit has been an important source of manganese ore since mining began in 1916. The purpose of this project was to produce a concise model of the stratigraphy, sedimentology and structural evolution of the deposit in support of future exploration projects. The manganese ores occur as an up to 45m thick carbonate bed in a thick turbidite-greenstone succession that is part of the ~2.2 Ga Birimian Supergroup. Calc-alkaline volcanics, volcaniclastics, turbidites, argillites and phyllites are thought to have been deposited in a backarc basin environment. The entire sedimentary succession, including the manganese orebody, is a thick turbidite package hosted between an upper and lower greenstone unit consisting predominantly of volcaniclastic material. The entire lithological succession at Nsuta is interpreted to have been deposited within the middle to lower reaches of a submarine fan environment. Field evidence suggests a simple stratigraphy, commencing with a lower greenstone unit composed largely of volcaniclastic material. This is followed by an upward-fining lower turbidite unit deposited in response to a marked transgression and sea level rise. Maximum rate of sea level rise provided ideal conditions for manganese precipitation and concentration, as detrital influx ceased. The central portion of the carbonate orebody that formed hosts the manganese orebody. An upward-coarsening turbidite unit follows above the carbonate unit. This upward-coarsening succession reflects a regression and a highstand systems tract in terms of sequence stratigraphic principles. It is capped by an unconformity that formed during a period of rapid relative sea level fall. It is overlain by a second upward-fining turbidite succession. This succession is not fully preserved as there is a sheared contact between it and the overlying upper greenstone unit. Post-depositional deformation and metamorphic alteration are largely attributed to the Paleoproterozoic Eburnean Orogeny. A first phase of compression was directed along a NW-SE axis and produced a series of isoclinal anticlines and synclines (F1) with NE-SW striking axial planes. This was followed by thrusting between the anticlines and synclines. The age of this deformation and closely associated greenschist metamorphism can be accurately constrained between 2.09 Ga and 2.07 Ga. E-W oriented oblique listric faulting has a prominent effect on the appearance of the Nsuta manganese deposit, as it produced a series of imbricate fault blocks dipping to the north. Associated with this period of deformation is small-scale cross folding with axes plunging to the east (F2). The faults post-date the Eburnean Orogeny and must be associated with a second major tectonic event. Finally, a NNE-SSW striking normal fault, locally known as the German Line, caused further block rotation, notably in the northern parts of the mining concession. Late Mesozoic deep lateritic weathering and incision of the lateritic peneplane by modern rivers have resulted in the complex dissected appearance of the Nsuta orebody. However, based on the detailed structural analysis provided in this study, a feasible target for future exploration of manganese ore buried beneath Late Mesozoic and Cenozoic sediments and soils, has been identified. This target is located to the west of Hills A and B.
Dr. J.M. Huizenga Prof. Nic Beukes Prof. J. Gutzmer
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Books on the topic "Geology – Ghana"

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Keese, G. O. The mineral and rock resources of Ghana. Rotterdam: A.A. Balkema, 1985.

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Loh, Geoffrey. Explanatory notes for the geological map of Southwest Ghana 1:100,000: Sekondi (0402A) and Axim (0403B) sheets. Hannover: Bundesanstalt für Geowissenschaften und Rohstoffe und den Geologischen Landesämtern in der Bundesrepublik Deutschland, 1999.

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Basile, Ch. Analyse structurale et modélisation analogique d'une marge transformante: L'exemple de la marge de Côte d'Ivoire, Ghana. Rennes, France: Centre armoricain d'étude structurale des socles, LP CNRS no 4661, Université de Rennes I, 1990.

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Mascle, Jean. Les Marges continentales transformantes ouest-africaines: Guinée, Côte d'Ivoire, Ghana et la zone de fracture de la Romanche : Campagne Equamarge II. Brest: IFREMER, 1989.

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Kesse. Mineral and Rock Resources of Ghana. Taylor & Francis Group, 1985.

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Kesse, G. O. Engng Geology Sydney Region. Taylor & Francis, 1985.

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N, Pells P. J., ed. Engineering geology of the Sydney region. Rotterdam: A.A. Balkema on behalf of the Australian Geomechanics Society, 1985.

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Explanatory notes for the geological map of Southwest Ghana 1:100,000: Sheets Wiawso (0603D), Asafo (0603C), Kukuom (0603B), Goaso (0603A), Sunyani (0703D) and Berekum (0703C). Hannover: Bundesanstalt für Geowissenschaften und Rohstoffe und den Geologischen Landesämtern in der Bundesrepublik Deutschland, 1993.

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Book chapters on the topic "Geology – Ghana"

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Chikohora, D. D. "Geology and exploration of the Bokitiso Concession, Central Region, Ghana." In African Mining ’91, 129–37. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3656-3_13.

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Mascle, Jean, Christophe Basile, Frances Westall, and Sergio Rossi. "Guinea and Ivory Coast—Ghana Transform Margins: Combined Effects of Synrift Structure and Postrift Bottom Currents on Evolution and Morphology." In Geologic Evolution of Atlantic Continental Rises, 282–92. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4684-6500-6_11.

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Antobreh, A. A., Jan Inge Faleide, Filippos Tsikalas, and S. Planke. "Rift-shear architecture and tectonic development of the Ghana margin." In Regional Geology and Tectonics: Phanerozoic Passive Margins, Cratonic Basins and Global Tectonic Maps, 566–615. Elsevier, 2012. http://dx.doi.org/10.1016/b978-0-444-56357-6.00015-9.

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Conference papers on the topic "Geology – Ghana"

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Avane, Godfred, and Abraham Saayman. "Tarkwa Gold Mine, Ghana, West Africa - A Case Example of Upgrading the Reliability of Reserves by Improved Accounting for Structural Geology in Pit Designs." In 2007 International Symposium on Rock Slope Stability in Open Pit Mining and Civil Engineering. Australian Centre for Geomechanics, Perth, 2007. http://dx.doi.org/10.36487/acg_repo/708_6.

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