A quantitative method of palaeolake-level reconstruction using ostracod assemblages: an example from the Bolivian Altiplano |
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Authors: | Ph Mourguiart P Carbonel |
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Institution: | (1) mission ORSTOM, CP 9214 La Paz Bolivia;(2) Département de Géologie et Océanographie, Université Bordeaux I, Av. des Facultés, 33405 Talence Cédex, France |
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Abstract: | This paper provides quantitative information concerning the response of ostracods to environmental variability in order to reconstruct past environments. Ostracod faunas from modern sediments of Bolivian lakes and swamps were studied. Ostracod distribution is controlled by several ecological characteristics such as lake-level and water chemistry. Statistical results indicate that three transfer functions (on water depth, Total dissolved Salts and water in Mg/Ca ratio) can be developed, from ostracod species frequencies in lacustrine sediments, with some restrictions for the two last ones. |
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Keywords: | transfer function ostracods water depth salinity Mg/Ca ratio Bolivia |
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