The Julie greenstone belt of NW Ghana is characterized by a predominately volcanic succession of basalt with minor rhyolite and a mainly sedimentary succession of siltstone, shale and greywacke.The first unit is correlated with the Sefwi Group, and the second with the Kumasi Group of the Birimian Supergroup. The volcano-sedimentary …

The Birimian greenstone belt of West Africa represents one of the world's most prospective yet underexplored regions for gold mining and discovery. As mining rules and regulations continue to shift in favor of … See more

The greenstone industry of Valgrana/Tetto Chiappello was studied with an archaeo-typological and mineral/petrographic approach (functional study, XRPD, polarized light microscopy and SEM-EDS), to infer the provenance of the raw materials and the role of this site in the general greenstone circulation during Neolithic. Most artifacts (mainly …

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This paper presents the outcome of a bulk-rock geochemical study of Birimian metasediments of the Lawra belt, northwestern Ghana; the scanty geochemical …

The granite-greenstone belt and southwest Ghana orebody at the ~2.5-Moz Bibiani gold deposit is controlled The Sefwi granite-greenstone belt hosts two major gold camps by a steep, 200- to 400-m-wide, N- to NNE-striking struc-other than Ahafo, which consist of Chirano and Bibiani. Gold tural corridor adjacent to the Bibiani-Afema shear zone, with

Greenstone belts have also been used synonomously with 'schist belts' and 'gold belts' – terms used to describe complexly deformed geological environments in which significant gold

Melcher, F. (1993) Gold mineralization in Birimian (Lower Proterozoic) greenstone belts of northern Ghana: the significance of chemical sediments. Ph.D. thesis (unpublished), 304 pp., Mining University, Leoben.Google Scholar. Melcher, F. and Stumpfl, E.F. (1992) Chemical facies and gold mineralization in northern Ghana.

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The most productive orogenic gold deposits are located in greenstone belts in Ghana, Mali, Senegal, Burkina Faso, Cote d'Ivoire (or Ivory Coast), and Guinea. Yielding about 200 t Au per year ...

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The Bepkong gold deposit is one of several gold camps in the Paleoproterozoic Wa-Lawra greenstone belt in northwest Ghana. These deposits lay along the Kunche-Atikpi shear zone, which is part of the larger transcurrent Jirapa shear zone.

The Bepkong gold deposit is located in the Wa–Lawra greenstone belt in Northwestern Ghana, and is part of the Paleoproterozoic Birimian terranes of the WAC (Fig. 1). This belt is the only N–S trending belt in Ghana (Kesse, 1985, Samokhin and Lashmanov, 1991, Pobedash, 1991, Roudakov, 1991), whereas all other belts trend …

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Origins of Birimian (ca 2.2 Ga) mafic magmatism and the Paleoproterozoic 'greenstone belt' metallogeny: a review. Frank K. Nyame, Frank K. Nyame [email protected] Department of Earth Science, Faculty of Science, University of Ghana, P. O. Box LG 58, Legon, Accra, Ghana. Search for more papers by this author. Frank K. Nyame, Frank K. …

Over the last few decades, attempts have been made to compare the Birimian belts of NW Ghana (Fig. 1 b) with other Birimian belts from the SW of Ghana, especially the Ashanti and Sefwi greenstone belts (e.g. Samokhin and Lashmanov, 1991; Agyei Duodu et al., 2009; Thomas et al., 2009; de Kock et al., 2011).However, such attempts have been …

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DOI: 10.5382/ECONGEO.4829 Corpus ID: 235507561; Gold Deposits of the ~15-Moz Ahafo South Camp, Sefwi Granite-Greenstone Belt, Ghana: Insights into the Anatomy of an Orogenic Gold Plumbing System

The Birimian Supergroup in Ghana consists of narrow sedimentary basins that trend northeasterly as well as linear greenstone belts consisting mainly of volcanic, volcaniclastic to clastic series. Both the sedimentary basins and the greenstone belts (one of which is the Lawra belt – the study area) are intruded by various generations of ...

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The Bepkong gold deposit is one of several gold camps in the Paleoproterozoic Wa-Lawra greenstone belt in northwest Ghana. These deposits lay …

To address this, samples from two Au deposits, Jerome and Kenty, in the Archean Swayze greenstone belt of northern Ontario, Canada, together with archived samples from 39 high-grade Au deposits from the Abitibi greenstone belt across Ontario and Quebec, were geochemically characterized using integrated scanning electron …

Gold Deposits of the ~15-Moz Ahafo South Camp, Sefwi Granite-Greenstone Belt, Ghana: Insights into the Anatomy of an Orogenic Gold Plumbing System ... The ~15-Moz Ahafo South gold camp is located in southwest Ghana, the world's premier Paleoproterozoic gold subprovince. Major orogenic gold deposits in the camp include …

In southern Ghana, gold mineralization has been identified with greenstone belts and has been reported to occur along broad shear zones and in narrow faults …

Gold Deposits of the ~15-Moz Ahafo South Camp, Sefwi Granite-Greenstone Belt, Ghana: Insights into the Anatomy of an Orogenic Gold Plumbing System. / Masurel, Quentin; Morley, Paul; Thebaud, Nico et al. In: Economic Geology, Vol. 116, No. 6, 01.09.2021, p. 1329-1353. Research output: Contribution to journal › Article › peer-review

Origins of Birimian (ca 2.2 Ga) mafic magmatism and the Paleoproterozoic 'greenstone belt' metallogeny: a review. Frank K. Nyame, Frank K. Nyame [email protected] Department of Earth Science, Faculty of Science, University of Ghana, P. O. Box LG 58, Legon, Accra, Ghana. Search for more papers by this author. Frank K. Nyame, …

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Petrogenetic Evolution of Chromite Deposits in the Archean Greenstone Belts of India. Ria Mukherjee, Sisir K. Mondal, in Processes and Ore Deposits of Ultramafic-Mafic Magmas through Space and Time, 2018. 6.1 Introduction. Archean greenstone belts represent some of the earliest records of the Earth's lithospheric history (DeWit and Ashwal, 1995); …

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Ghana is the largest producer of gold in West Africa, a region with over 2,500 years of history with regards to gold production and trade. Modern exploration for and mining of gold in Ghana dates ...

Geochemistry of an ultramafic-rodingite rock association in the Paleoproterozoic Dixcove greenstone belt, southwestern Ghana Kodjopa Attoh a,*, Matthew J. Evans a,1, M.E. Bickford b a Department of Earth and Atmospheric Sciences, Cornell University, Snee Hall, Ithaca, NY 14853, USA b Department of Earth Sciences, Syracuse University, Syracuse, …

Previously, Leube et al. (1990) had suggested that the Birimian greenstone belts of Ghana formed in intracontinental rifts. This assertion was, however, contested by Sylvester and Attoh (1992) who, based on major and trace element geochemistry of Birimian metavolcanic rocks, preferred a tectonic setting comparable to the present-day primitive ...

The study area is underlain by the Sefwi Greenstone Belt which is one of the six known Birimian Greenstone Gold Belts in Ghana (Figure 1). These belts are known to …

On disseminated and vein type gold mineralization in Ghana/West Africa; W Hirdes et al. The Tarkwaian Group of Ghana: new aspects relating to its tectonic setting, structural evolution, gold mineralization and provenance area; Hirdes, W., Saager, R. and Leube, A., in preparation. Geology and mineralization of the Tarkwaian Group of Ghana, …

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Table 2 hsts features of mining districts in the area and elsewhere, for comparison The most prominent of the so-called "greenstone" gold-belts of Ghana is the "As- hanti"-belt (Fig. 2) on which are located five major producing gold mines with a total output of over 13,000 kg Au in 1989 (Anon, 1989, Ghana Min- erals Commission) The …

School of Nuclear and Allied Sciences, University of Ghana-Atomic, Legon-Accra, Ghana. National Nuclear Research Institute, Ghana Atomic Energy Commission, Legon-Accra, Ghana. Correspondence. B. Dampare, School of Nuclear and Allied Sciences, University of Ghana-Atomic, P.O. Box LG 80, Legon-Accra, Ghana. Email: …