Barker, P. and Telford, R. and Gasse, Françoise and Thevenon, Florian (2002) Late Pleistocene and Holocene palaeohydrology of Lake Rukwa, Tanzania, inferred from diatom analysis. Palaeogeography, Palaeoclimatology, Palaeoecology, 187 (3-4). pp. 295-305. ISSN 0031-0182
Full text not available from this repository.Abstract
Diatom analysis has been used to provide information on the lake-level fluctuations of Lake Rukwa during the last 21.7 ka. Diatom-inferred chemical variables (conductivity, pH, anion and cation ratios) indicate that at the LGM lake level was low, probably driven by a low P:E ratio, but with sufficient water to avoid desiccation. Following the LGM, deep water conditions were obtained through a series of steps until maximum water depth was reached by at least 13.5 ka. The high lake-level phase lasted through the Early Holocene until after 6.7 ka. A shallow saline lake has occupied the basin from ca. 5.5 ka until the present day. The pattern of reconstructed lake-level fluctuation in Lake Rukwa is similar to that from Lake Tanganyika and other lakes from the equatorial and northern tropical zone. We can confirm that the N-tropical mode of millennial scale lake-level change since the LGM extended to at least 8°S.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Palaeogeography, Palaeoclimatology, Palaeoecology |
| Additional Information: | Nov 15 Late Pleistocene and Holocene palaeohydrology of Lake Rukwa, Tanzania, inferred from diatom analysis Times Cited: 27 2nd International Congress of Limnogeology (ILIC 2) MAY 25-28, 1999 UNIV WESTERN BRETAGNE, INST UNIV EUROPEAN MER, PLOUZANE, FRANCE |
| Uncontrolled Keywords: | diatoms ; transfer functions ; lake levels ; tropical palaeoclimate ; Late Quaternary |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences |
| Departments: | Faculty of Science and Technology > Lancaster Environment Centre |
| ID Code: | 53050 |
| Deposited By: | ep_importer_pure |
| Deposited On: | 19 Mar 2012 09:34 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 26 Jul 2012 20:12 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/53050 |
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