caa a22 4500 469077638 CHVBK 20180323132939.0 cr unu---uuuuu 170328e19920101xx s 000 0 eng 10.1007/BF00181716 doi (NATIONALLICENCE)springer-10.1007/BF00181716 Barker Philip Department of Geography, Loughborough University, LE11 3TU, Loughborough, Leics, UK aut Differential diatom dissolution in Late Quaternary sediments from Lake Manyara, Tanzania: an experimental approach [Elektronische Daten] [Philip Barker] Diatom dissolution in saline lakes represents an important obstacle to the quantitative reconstruction of water chemistry and climate from lake sediment archives. This problem is here approached experimentally by artificially dissolving diatom-bearing core sediment from Lake Manyara, Tanzania. Manyara holds one of the longest continuous palaeolimnological records from tropical Africa although its interpretation is based on a fragmentary diatom record due to frustule dissolution. These experiments have revealed clear changes in assemblage composition as dissolution operated differentially with respect to diatom taxa. Differential dissolution has considerable impact on the water chemistry estimates derived from transfer functions. Taphonomy, rather than environmental change, may have been responsible for minor fluctuations in the diatom assemblages from Manyara, although major palaeohydrological changes during the Late Pleistocene and Early Holocene can be identified. Particularly well represented by MANE-87 is a period of intermediate lake level between 27 500 and 23 000 14C yr BP which has regional palaeohydrological significance. Kluwer Academic Publishers, 1992 diatoms nationallicence dissolution nationallicence transfer functions nationallicence taphonomy nationallicence Lake Manyara nationallicence Tanzania nationallicence Late Quaternary nationallicence Journal of Paleolimnology Kluwer Academic Publishers 7/3(1992-01-01), 235-251 0921-2728 7:3<235 1992 7 10933 https://doi.org/10.1007/BF00181716 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00181716 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Barker Philip Department of Geography, Loughborough University, LE11 3TU, Loughborough, Leics, UK aut NATIONALLICENCE 773 0- Journal of Paleolimnology Kluwer Academic Publishers 7/3(1992-01-01), 235-251 0921-2728 7:3<235 1992 7 10933 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer