Mineralium Deposita

, Volume 26, Issue 3, pp 228–238 | Cite as

The metallogenic relationship between Birimian and Tarkwaian gold deposits in Ghana

  • J. P. Milési
  • P. Ledru
  • P. Ankrah
  • V. Johan
  • E. Marcoux
  • Ch. Vinchon


The traditional concept of the Early Proterozoic gold deposits in Ghana — i.e. gold-bearing shear zones overlain by Tarkwaian paleoplacers containing reworked gold derived from the shear-zones — needs to be reconsidered in the light of recent research in Ghana, the Ivory Coast and French Guiana. This research has revealed a consistent pattern of geostructural and metallogenic evolution in which both the Birimian and the Tarkwaian rocks were deformed by a major Eburnean compression (D2). It has shown that the NE-SW faults controlling the Gold Coast Range shear-zone mineralization (Ashanti-Prestea) were formed during the Eburnean D2 episode of thrusting that was followed by hydrothermal activity with the emplacement of auriferous arsenopyrite and then by the development of quartz veinlets and native gold; thus the shear-zone mineralization could only have appeared during the D2 late-orogenic stage. It has also shown evidence of post-depositional D2 deformation in the gold sites examined in the Tarkwa gold-bearing conglomerate, although the effects are limited and primary lithological controls have been preserved that reveal these deposits to be “modified paleo-placers”. Thus, the Tarkwaian gold could not be derived from the gold-bearing shear-zones.


Gold Shear Zone Conglomerate Gold Deposit Hydrothermal Activity 
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  1. Adjei, A.O. (1988) Proterozoic tectonics and Birimian gold mineralization. In International conference and workshop on geology and exploration in Ghana. 75th Anniversary of the Ghana Geol. Sur. Dept.: 2Google Scholar
  2. Bonnemaison, M., Marcoux, E. (1987) Les zones de cisaillement aurifères du socle hercynien français. Chron. Rech. Min., 488, 29–42Google Scholar
  3. Bonnemaison, M., Marcoux, E. (1990) Auriferous mineralization in some shear-zones: a three-stage model of metallogenesis. Mineral. Deposita 25:96–104Google Scholar
  4. Breakey, A., Breakey, E. (1977) The geology of 1/4° field sheets of 0603/A3 (117) Goaso SW and 0603/A4 (118) Goaso SE, Ghana Geol. Surv. Accra: 95, (unpublished)Google Scholar
  5. Cathelineau, M., Boiron, M.C., Holliger, P., Marion, P. (1986) Gold-rich arsenopyrite: crystal chemistry, gold location and state, physical and chemical conditions of crystallisation. Geol. Soc. Australia Abstracts, No. 22:235–240Google Scholar
  6. Cappendell, G. (1987) Ashanti. Mining Mag. 157:122–129Google Scholar
  7. Colvine, A.C., Andrews, A.J., Cherry, M.E., Durocher, M.E., Fyon, A.J., Lavigne, Jr., M.J., Macdonald, A.J., Marmont, S., Poulsen, K.H., Springer, J.S., Troop, D.G. (1984) An Integrated Model for the Origin of Archean Lode Gold Deposits. Ontario Geological Survey, Open File Report 5524:98 p.Google Scholar
  8. Cooper, W.G.G. (1934) The geology of the Prestea Goldfields. Gold Coast Geol. Surv. Mem. 3:20 p.Google Scholar
  9. Dommanget, A., Diallo, M., Guilloux, L. (1985) Un nouveau type de gisement d'or: Loulo (Mali). Chron. Rech. Min. 481:5–18Google Scholar
  10. Dommanget, A., Diallo, M., Guilloux, L., Milési, J.P. (1986) Le gisement de Loulo (Mali): un exemple de concentration aurifére stratiforme dans des grés à tourmaline du Birrimien de l'Afrique de l'Ouest. CIFEG, publ. occ. 10:123–130Google Scholar
  11. Greer, I.R., Netherway, D.G., Pertzel, B.A. (1988) The geology and exploration of the Detchikroum and Mpeasem concessions, Tarkwa Basin, Ghana. In: International conference and workshop on geology and exploration in Ghana. 75th Anniversary of the Ghana Geol. Surv. Dept.:11Google Scholar
  12. Griffis, R.J. (1988) Exploration and development of the Bogosu concession, Western region Ghana. In International conference and workshop on geology and exploration in Ghana. 75th Anniversary of the Ghana Geol. Surv. Dept.: 12–13Google Scholar
  13. Gruau, G., Martin, H., Levêque, B., Capdevila, R., Marot, A. (1985) Rb-Sr and Sm-Nd geochronology of Lower Proterozoic Granite-Greenstones terrains in French Guiana, South America. Precambrian Res. 30:63–80Google Scholar
  14. Guha, J., Dubé, B., Pilote, P., Chown, E.H., Archambault, G., Bouchard, G. (1988) Gold mineralization patterns in relation to the lithologic and tectonic evolution of the Chibougamau mining district, Quebec, Canada. Mineral. Deposita 23:293–298Google Scholar
  15. Hastings, D.A. (1982) On the tectonics and metallogenesis of West Africa: a model incorporating new geophysical data-Geoexploration, 20:295–327Google Scholar
  16. Hirdes, W., Saager, R., Leube, A. (1988) New structural, radiometric and mineralogical aspects of the Au-bearing Tarkwaian group of Ghana. Bicentennial Gold 88, Melbourne: 146:148Google Scholar
  17. Hirst, T. (1938) The geology of the Tarkwa goldfields and adjacent country. Gold Coast Geol. Surv. Bull. 10:24 p.Google Scholar
  18. Hirst, T. (1942) The geology of the Konongo gold belt and surrounding country. Gold Coast Geol. Surv. Bull. 14:28 p.Google Scholar
  19. Hussey, W.J. (1988) The geology of Ashanti goldfields. In International conference and workshop on geology and exploration in Ghana. 75th Anniversary of the Ghana Geol. Surv. Dept.: 19Google Scholar
  20. Johan, Z., Marcoux, E., Bonnemaison, M. (1989) Arsénopyrite aurifère: mode de substitution de Au dans la structure de FeAsS. C.R. Acad. Sci. Fr. 308, II:185–191Google Scholar
  21. Junner, N.R. (1932) The geology of the Obuasi goldfield. Gold Coast Geol. Surv. Mem. 2:43 p.Google Scholar
  22. Junner, N.R. (1935) Gold in the Gold Coast. Gold Coast Geol. Surv. Mem. 4: 52 p.Google Scholar
  23. Junner, N.R. (1940) Geology of the Gold Coast and western Togoland (with revised geological map). Gold Coast Geol. Surv. Mem. 6:75 p.Google Scholar
  24. Kesse, G.O. (1985). The mineral and rock resources of Ghana. 610 p. Rotterdam: A.A. BalkemaGoogle Scholar
  25. Kwesie, J. (1984) A geostatistical study of the Pepe gold deposit (Tarkwa Goldfields Ltd., Ghana). Unpubl. rep. BRGM, 48 p.Google Scholar
  26. Lasserre, J.L., Ledru, P., Manier, E., Mercier, D. (1989) Le Protérozoïque inférieur de Guyane. Révision lithostructurale. Implications pour la formation détritique ORAPU et la gîtologie de l'or. Unpubl. Rep. BRGM-ENSMP 89 GUF 023:56Google Scholar
  27. Ledru, P., Milési, J.P., Vinchon, C., Lasserre, J.L., Manier, E. (1987) Etude structurale et gîtologie de l'or dans les séries conglomératiques de l'ORAPU (Guyane française). Unpubl. Rep. BRGM 87 GUF 248 GEO: 10 p.Google Scholar
  28. Ledru, P., Milési, J.P., Vinchon, C., Johan, V., Marcoux, E., Ankrah, P. (1988a) Géologie et gîtologie de l'or des séries birrimiennes du Ghana. Unpubl. Rep. BRGM 88 AFO 122 GEO: 36 p.Google Scholar
  29. Ledru, P., Milési, J.P., Vinchon, C., Ankrah, P.T., Johan, V, Marcoux, E. (1988b) Geology of the Birimian series of Ghana. Abstracts of the International conference and workshop on the geology and exploration in Ghana. 75th Anniversary of the Ghana Geol. Surg. Dept.: 26–27Google Scholar
  30. Ledru, P., Lasserre, J.L., Manier, E., Mercier, D. (1991) Le protérozoïque inférieur du craton guyanais: révision de la lithologie, tectonique transcurrente et dynamisme des bassins sédimentaires: Bull. Soc. Geol. Fr.: 20 (in press)Google Scholar
  31. Leube, A., Hirdes, W. (1988a) New aspects on disseminated and vein type gold mineralization in Ghana (West Africa). Bicentennial Gold 88, Melbourne: 149–152Google Scholar
  32. Leube, A., Hirdes, W. (1988b) On disseminated and vein type gold mineralization in Ghana (West Africa). In International conference and workshop on geology and exploration in Ghana. 75th Anniversary of the Ghana Geol. Surv. Dept.:28–30Google Scholar
  33. Leube, A., Hirdes, W., Mauer, R., Kesse, G.O. (1990) The early Proterozoic Birimian supergroup of Ghana and some aspects of its associated gold mineralization. Prec. Res. 46:139–165Google Scholar
  34. Manier, E. (1990) Les conglomérats aurifères de la Guyane française (Protérozoïque inférieur): dynamique des bassins sédimentaires et contrôles des minéralisations. Thèse, Ecole nationale supérieure des mines, Paris, Fr.: 184 p.Google Scholar
  35. Marcoux, E., Bonnemaison, M., Braux, C., Johan, Z. (1989) Distribution de Au, Sb, As et Fe dans l'arsénopyrite aurifère du Châtelet et de Villeranges (Creuse, Massif central français). C.R. Acad. Sci. Fr. 208, II:293–300Google Scholar
  36. Milési, J.P., Diallo, M., Feybesse, J.L., Keita, F., Ledru, P., Vinchon, C., Dommanget, A. (1986) Caractérisation structurale de deux ensembles successifs dans les séries birrimiennes de la boutonnière de Kédougou (Mali-Sénégal) et du Niandan (Guinée); implications gîtologiques. CIFEG, publ. occ. 10:113–121Google Scholar
  37. Milési, J.P., Lambert, A., Ledru, P. (1988a) Résultats préliminaires à l'étude gîtologique et structurale de Dorlin (Guyane). Unpubl. Rapport BRGM 88 GUF 052 DEX: 48 p.Google Scholar
  38. Milési, J.P., Ledru, P., Ankrah, P.T., Marcoux, E., Vinchon, C., Johan, V. (1988b) Geological and structural setting of the Ghana gold deposits hosted by Birimian formations. Abstracts of the International conference and workshop on the geology and exploration in Ghana with special emphasis on gold. 75th Anniversary of the Ghana Geol. Surv. Dept.: 31–32Google Scholar
  39. Milési, J.P., Feybesse, J.L., Ledru, P., Dommanget, A., Ouedraogo, M.F., Marcoux, E., Prost, A., Vinchon, C., Sylvain, J.P., Johan, V., Tegyey, M., Calvez, J.Y., Lagny, Ph. (1989) West Africa gold deposits in their Lower Proterozoic lithostructural setting. Chron. Rech. Min. 497:3–98Google Scholar
  40. Mumin, A.A., Clarke, G.A., Flach, G.A., Badu, F (1988) Geology and mineralogy of gold mineralization at the Bogosu concession, Western Region, Ghana. In International conference and workshop on geology and exploration in Ghana. 75th Anniversary of the Ghana Geol. Surv. Dept.: 34Google Scholar
  41. Ntiamoah-Agyakwa, Y. (1979) Relationship between gold and manganese mineralization in the Birimian of Ghana, West Africa. Geol. Mag. 116:345–352Google Scholar
  42. Oberthür, T., Saager, R., Tomschi, H.P. (1988) Banded iron formation from southern African greenstone belts: mineralogical and geochemical aspects with particular reference to the distribution of gold. In International conference and workshop on geology and exploration in Ghana. 75th Anniversary of the Ghana Geol. Surv. Dept.: 35–36Google Scholar
  43. Philips, G.N., Myers, R.E. (1987) Mineralogy of the Witwatersrand reef components: a review and some implications for exploration. Geology Department and University Extension, University of Western Australia, Publication No. 11:341–354Google Scholar
  44. Philips, G.N., Myers, R.E., Law, J.D.M., Bailey, A.C., Cadle, A.B., Beneke, D., Borrego, P.M.D.A., Giusti, L., Ingle, L., Kerr, S.J., Palmer, J.A., Ramos, Z.C.D.N., Robertson, N.S. (1988) Recent advances in the geology of the Witwatersrand gold fields, including the importance of post-depositional processes. Bicentennial Gold 88, Melbourne, Abstracts No. 22:319–324Google Scholar
  45. Picot, P., Marcoux, E. (1987) Nouvelles données sur la métallogénie de l'or. C.R. Acad. Sci. Fr. 304, II:221–226Google Scholar
  46. Reimer, R.O., Mossman, D.J. (1990) The Witwatersrand controversy revisited. Econ. Geol. 85:337–343Google Scholar
  47. Robb, L.J., Meyer, F.M. (1990) The nature of the Witwatersrand Hinterland: conjectures on the source area problem. Econ. Geol. 85:511–536Google Scholar
  48. Saager, R., Esselarr, P.A. (1969) Factor analysis of geochemical data from the Basal reef, Orange Free State goldfield, South Africa. Econ. Geol. 64:445–451Google Scholar
  49. Scott, S.D. (1983). Chemical behaviour of sphalerite and arsenopyrite in hydrothermal and metamorphic environments. Miner. Mag. 47:427–435Google Scholar
  50. Sestini, G. (1970) Sedimentological study of the Tarkwaian gold deposit, Ghana. 14th Ann. Rep. Res. Inst. Afr. Geol., Leeds Univ.: 23–26Google Scholar
  51. Sestini, G. (1971) Palaeocurrents and exploration for gold in the Tarkwaian of Ghana. 15th Ann. Rep. Res. Inst. Afr. Geol., Leeds Univ.: 23–25Google Scholar
  52. Sestini, G. (1976). Sedimentology of a paleoplacer: the gold-bearing Tarkwaian of Ghana. In: Amstutz, G.C., Bernard, A.J. (eds.) Ores in sediments. Springer Berlin Heidelberg New York, pp. 275–305Google Scholar
  53. Sonnendrucker, P. (1969) Etude de synthèse sur l'or de la Côte-d'Ivoire. SODEMI rep. 222, Abidjan: 127 p.Google Scholar
  54. Sutill, K.R. (1989) Ghana's golden glow interest revives in the Gold Coast. E. and M.J., 190, No. 6:22–23Google Scholar
  55. Van Es, E. (1967) The geology of the Dunkwa sheet. Ghana Geol. Surv., Accra: 114 p. (unpublished)Google Scholar
  56. Vinchon, C. (1989) Nouvelles hypothèses sur les contrôles sédimentologiques des gîtes aurifères dans les séries gréso-conglomératiques du Witwatersrand (Afrique du Sud), du Tarkwaian (Afrique de l'Ouest) et de l'Orapu (Guyane française). Chron. Rech. Min. 497:115–129Google Scholar
  57. Vinchon, C., Manier, E., Lasserre, J.L., Milési, J.P., Ledru, P. (1988) Etude sédimentologique des grès et conglomérats de l'ORAPU (Guyane). Unpubl. Rep. BRGM 88 GUF 017 GEO: 11 p.Google Scholar
  58. Whitelaw, O.A.L. (1929) Geological and mining features of the Tarkwa-Abosso Goldfield. Gold Coast Geol. Surv. Mem. 1:45 p.Google Scholar
  59. Wright, J., Hastings, D. (1985) Geology and Mineral Resources of West Africa. Allen and Unwin, London, 189 p.Google Scholar
  60. Wu, X., Delbove, F. (1989) Hydrothermal synthesis of gold-bearing arsenopyrite. Econ. Geol. 84:2029–2032PubMedGoogle Scholar

Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • J. P. Milési
    • 1
  • P. Ledru
    • 1
  • P. Ankrah
    • 2
  • V. Johan
    • 1
  • E. Marcoux
    • 1
  • Ch. Vinchon
    • 1
  1. 1.BRGMOrléans Cedex 2France
  2. 2.Geological Survey DepartmentAccraGhana

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