Citation: W. Hirdes et Dw. Davis, FIRST U-PB ZIRCON AGE OF EXTRUSIVE VOLCANISM IN THE BIRIMIAN SUPERGROUP OF GHANA WEST-AFRICA, Journal of African earth sciences, and the Middle East, 27(2), 1998, pp. 291-294
Citation: R. Klemd et W. Hirdes, ORIGIN OF AN UNUSUAL FLUID COMPOSITION IN EARLY PROTEROZOIC PALAEOPLACER AND LODE-GOLD DEPOSITS IN BIRIMIAN GREENSTONE TERRANES OF WEST-AFRICA, South African journal of geology, 100(4), 1997, pp. 405-414
Citation: Tw. Weiser et W. Hirdes, ZINC-RICH CHROMITE FROM PALEOPROTEROZOIC CONGLOMERATES AT TARKWA GOLDMINE, GHANA, Canadian Mineralogist, 35, 1997, pp. 587-595
Citation: W. Hirdes et al., 2 GENERATIONS OF BIRIMIAN (PALEOPROTEROZOIC) VOLCANIC BELTS IN NORTHEASTERN COTE-DIVOIRE (WEST-AFRICA) - CONSEQUENCES FOR THE BIRIMIAN CONTROVERSY, Precambrian research, 80(3-4), 1996, pp. 173-191
Citation: R. Krupp et al., THE EARLY PRECAMBRIAN ATMOSPHERE AND HYDROSPHERE - THERMODYNAMIC CONSTRAINTS FROM MINERAL-DEPOSITS, Economic geology and the bulletin of the Society of Economic Geologists, 89(7), 1994, pp. 1581-1598
Citation: Dw. Davis et al., U-PB AGE CONSTRAINTS ON DEPOSITION AND PROVENANCE OF BIRIMIAN AND GOLD-BEARING TARKWAIAN SEDIMENTS IN GHANA, WEST-AFRICA, Precambrian research, 67(1-2), 1994, pp. 89-107
Citation: R. Klemd et al., FLUID INCLUSIONS IN QUARTZ-PEBBLES OF THE GOLD-BEARING TARKWAIAN CONGLOMERATES OF GHANA AS GUIDES TO THEIR PROVENANCE AREA, Mineralium Deposita, 28(5), 1993, pp. 334-343