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Mugabe, J.; Achimo, M.; Cuamba, F.; Haldorsen, S.. |
During the Quaternary the volume of the world’s oceans fluctuated, with sea level falls as the water has been incorporated into polar and high latitude ice sheets, and sea level rise as these have subsequently melted. Sea-level lowstands were therefore related to the Pleistocene glaciations, while high-stands correlate with interglacials. In general the climate variations in Africa shows a simple relation: Cold or cool climates are associated with dry episodes and warm climates are associated with wet episodes. This applies to the major Milankovich driven glacials and interglacials, as well as to short-lived intervals related to sun spot activities. The reconstruction of palaeoshorelines in the Maputo Bay, and the climate around the Maputo Bay is based on... |
Tipo: Preprint |
Palavras-chave: Geology. |
Ano: 2001 |
URL: http://hdl.handle.net/1834/450 |
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Haldorsen, S.; Cuamba, F.; Mugabe, J.; Været, L.; Stabell, B.; Taylor, R.. |
St Lucia, is a large coastal lagoon, which is very sensitive to changes in water level,volume and quantities of inflowing freshwater. It is therefore sensitive to the effects of global change that alter sea levels and rainfall. Earlier studies have shown that, during the Eemian, St Lucia was a marine environment. At that time global sea level was 3-4 m higher than that at the present. During the falling sea level leading up to the Last Glacial Maximum, St Lucia was above sea level and the climate was mainly dry. Studies of cores at Brodie’s Crossing showed that there were episodes with a wet climate at 23 000 years BP. During this period peat was deposited. Overlying this is wind-blown sand. Diatom studies indicate that this overlying sand was mainly... |
Tipo: Working Paper |
Palavras-chave: Coastal lagoons. |
Ano: 2004 |
URL: http://hdl.handle.net/1834/355 |
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