Journal of Oceanography and Marine Research
Open Access
ISSN: 2572-3103
ISSN: 2572-3103
Laissaoui A
Morocco
Review Article
Estimating Recent Sedimentation Rates Using Lead-210 in Tropical Estuarine Systems: Case Study of Volta and Pra Estuaries in Ghana, West Africa
Author(s): Nyarko E, Klubi E, Laissaoui A and Benmansour MNyarko E, Klubi E, Laissaoui A and Benmansour M
The Volta River and its basin form about one-third of Ghana's total land area and contributes significantly to the hydrological network of the country’s river system while River Pra basin is noted for large and small scale mining activities within it. Both river systems are important for sediment delivery for beach nourishment along Ghana’s coast. This work presents the first ever estimates of the sedimentation rates at the estuaries of these rivers using 40 cm long sediment cores. Sediment accumulation rates were estimated using the 210Pb sediment dating technique which is based on alpha and gamma emitting radionuclides. The total 210Pb concentration in the sediment was measured with an alpha spectrometer while the activities of supported 210Pb and 137Cs were measured with a gamma spectrometer with high germanium n-type detector. The unsupported 210Pb was determined b.. View More»
DOI:
10.4172/2572-3103.1000141