Late Cretaceous to early Tertiary pollen grains from offshore Tano Basin, southwestern Ghana

• Autores: D. Atta-Peters, M.B. Salami
• Localización: Revista española de micropaleontología, ISSN 0556-655X, Vol. 36, Nº. 3, 2004, págs. 451-465
• Idioma: español
• Enlaces
  • Texto Completo Ejemplar
• Resumen

  • Miospores recovered from the interval 6,700 ft-1,260 ft (2,042 m-384 m) in well ST-8 offshore Tano Basin (Ghana) have been studied and discussed. The miospore assemblage is dominated by angiospermic pollen. Pteridophytic or trilete spores are mainly laevigate forms whilst the sculptured forms are few in the assemblage. Pollen taxa are largely monocolpates with other subordinate apertural types, showing appreciable variation in the exine. The miospore association, together with fungal and algal spores, provides evidence of freshwater swamp or marsh environment. The monocolpates are attributed to the palmae and belong to the tropical-subtropical Senonian Palmae Province of Africa and South America (ASA) region. The assemblage is indicative of a warm and humid climate. Stratigraphically significant miospore taxa point out to Campanian to Eocene age for the sediments.