Výsledky vyhledávání - "Johnson Manu"

Akademický článek

Impact of artisanal small-scale (gold and diamond) mining activities on the Offin, Oda and Pra rivers in Southern Ghana, West Africa: A scientific response to public concern

Autor: Samuel Nunoo, Johnson Manu, Francis K.B. Owusu-Akyaw, Frank K. Nyame

Publikováno v: Heliyon, Vol 8, Iss 12, Pp e12323- (2022)

The surface water systems of Ghana serve as a major source of drinking water, besides other multi-purpose benefit of hydro-electrical power generation and transportation. Thus, the dependence and benefits from such resources are of national interest.

Externí odkaz: https://doaj.org/article/c09be0ef7ff34198ba0c3371ecf86c39

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Manganese occurrence in the Mankwadzi Area, southern Kibi–Winneba metavolcanic belt, Ghana: typical or atypical palaeoproterozoic Birimian Mn mineralization?

Autor: Jeff Baah-Acheamfour, Jacob Tigme, Johnson Manu, Thomas Armah, Kwabina Ibrahim, Frank K. Nyame

Publikováno v: Geological Society, London, Special Publications. 502:331-348

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6be1c74389f97ff29c51498673492257
https://doi.org/10.1144/sp502-2019-75

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Origin and tectonic significance of the metavolcanic rocks and mafic enclaves from the Palaeoproterozoic Birimian Terrane, SE West African Craton, Ghana

Autor: Sanjeewa P.K. Malaviarachchi, Ben-Xun Su, Chris Y. Anani, Daniel Kwayisi, Johnson Manu, Patrick Asamoah Sakyi, Ben-Can Su, Prosper M. Nude, Melesse Alemayehu

Publikováno v: Geological Magazine. 157:1349-1366

The Palaeoproterozoic Birimian Supergroup of the West African Craton (WAC) consists of volcanic belts composed predominantly of basaltic and andesitic rocks and intervening sedimentary basins composed predominantly of wackes and argillites. Mafic met

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7348622191eedf91452642e4551c2252
https://doi.org/10.1017/s001675681900150x

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Petrography and geochemistry of manganiferous rocks in the Mankwadzi area in the southern Kibi‐Winneba metavolcanic belt, Ghana: Implications for genesis of Mn formations in the Birimian of West Africa

Autor: Jeff Baah-Acheamfour, Thomas Armah, Jacob Tigme, Johnson Manu, Kwabina Ibrahim, Frank K. Nyame

Publikováno v: Island Arc. 29

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45c79a210c4bd7b48d53f57bccf3edd1
https://doi.org/10.1111/iar.12363

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Geochemical and Sm–Nd isotopic evidence for the composition of the Palaeoproterozoic crust of the West African Craton in Ghana

Autor: Ben-Xun Su, Samuel B. Dampare, Daniel Kwayisi, Prosper M. Nude, Johnson Manu, Patrick Asamoah Sakyi

Publikováno v: Geological Journal. 54:3940-3957

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6eb4da2333f0504503f0a0d76dea08d6
https://doi.org/10.1002/gj.3387

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Deciphering structures and deformation of the Obuom Gold Prospect, Central Ashanti Belt of Ghana: A lithostructural approach

Autor: Samuel Nunoo, Daniel K. Asiedu, Prosper M. Nude, Johnson Manu, V.O. Olarewaju

Publikováno v: Journal of African Earth Sciences. 124:159-170

The Obuom Gold Prospect is located in the central part of the Paleoproterozoic Birimian Ashanti belt of southwest Ghana. The prospect is approximately 45 km 2 and is underlain by basalt, andesite and dacite volcanic beds, graphitic and chlorite phyll

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::573a9bf62e6f48a26cc9a5a63fe4ed8f
https://doi.org/10.1016/j.jafrearsci.2016.09.019

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Arsenic Sorption Characteristics in Decommissioned Tailings Dam Environment at the Obuasi Mine, Ghana

Autor: Simon K. Y. Gawu, Prosper M. Nude, Gordon Foli, Johnson Manu

Publikováno v: Research Journal of Environmental and Earth Sciences. 5:599-610

Arsenic (As) sorption characteristics in decommissioned tailings dam environment at the Obuasi mine, Ghana was studied. The aim was to outline effective remediation strategy for As, hence the objectives were to establish: (1) Arsenic degradation capa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5ce77fc825e055c38010e31201ce88a8
https://doi.org/10.19026/rjees.5.5690

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Preserved Sm-Nd Isotopic Composition as Useful Provenance Indicators in Neoproterozoic Sandstones in the Voltaian Basin, Ghana

Autor: Prosper M. Nude, Patrick Asamoah Sakyi, Chris Y. Anani, Johnson Manu, Daniel K. Asiedu, Jacob Kutu

Publikováno v: International Journal of Geosciences. :463-468

The provenance of sandstones derived from theLower Voltaian Kwahu-Morago Group and the Middle Voltaian Oti-Pendjari Group of the Neoproterozoic Voltaian basin are discriminated by their Sm-Nd Isotopic compositions. Plots from the Sm-Nd data suggested

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::841d78e167cc53f4d050fad8ba05b7f5
https://doi.org/10.4236/ijg.2012.33049

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Hydrologic fluxes in the Volta River watershed : A paleo-terrestrial environment in West Africa

Autor: Johnson Manu, Daniel K. Asiedu, E. K. Hayford

Publikováno v: African Journal of Environmental Science and Technology. 4:352-364

The hydrologic cycle plays an important role in carbon cycling, due to the coupling of vapour release and CO2 uptake during photosynthesis. This coupling, expressed as water use efficiency of transpiration ratio, can provide an inexpensive alternativ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b03eb1355111e6e6fd2b3a9ae80b78d
https://doi.org/10.5897/ajest09.186

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A comparative study of bulk leach extractable gold (BLEG) and fire assay methods on the Wassa deposit at Golden Star Limited, Wassa mine

Autor: Johnson Manu, Samuel Nunoo, E. K. Hayford, Christain Tawiah

Publikováno v: International Journal of Basic and Applied Sciences. 7:15

Golden Star Resources Limited conducts Bulk Leach Extractable Gold (BLEG) and Fire Assay methods on samples from its exploration program. Additionally, for mining control and as part of the sampling and analytical protocol, residues of samples whose

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ae707164a1a34fc67b59ffea2fc2e1f0
https://doi.org/10.14419/ijbas.v7i1.8267

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