Resumen de Pollen Based Reconstruction of Vegetation and Climate of Ologun Area in Lagos, Nigeria.

Temitope O. Onuminya, Linus B. Ajikah, Precious O. Okoye, Oluwatoyin T. Ogundipe

• Pollen and spores obtained from sediments of Ologun in the east Lagos coastal environment were analyzed, in order to reconstruct vegetation in the past and infer the paleoclimate. Sediments were collected by universal peat corer and palynomorphs were recovered following the standard palynological procedures. A total of 503 palynomorphs were recovered and photomicrographs taken. Radiocarbon dating results indicate that the sediments were deposited within the last 103 years BP, while lithology of the samples shows a mixture of sand and mudstones, or shales with acidic pH. It was assumed that fluctuation between wet and dry climatic conditions had taken place in this study location and, hence, the period was designated as Late Holocene.