Abstract
A diatom study of lacustrine sediments in the southern part of the Bolivian Altiplano (Salar of Coipasa) provides a continuous record of the period 21,000–17,500 14C yr BP. Constrained by seven AMS 14C dates, this record provides evidence that the Coipasa basin was filled by a shallow body of water during this time. Diatom/salinity and diatom/ionic composition transfer functions indicate that the lake was saline, dominated by sodium-chloride throughout all the period.
A comparison with regional data shows that Lake Titicaca could not have overflowed towards the southern Bolivian Altiplano at that time. As this dry phase was not registered in Lake Coipasa, this lake was probably supplied by winter precipitation originating from the Pacific. But, recent data from the deep basin of Lake Titicaca show that the lake-level was higher during this time interval, and the question arises whether precipitation from Atlantic and Amazonia sources could have played an important role on the Altiplano during the Last Glacial Maximum (LGM). This hypothesis needs to match other available paleoclimatic data from the lowlands of tropical South America, where there is evidence that during the LGM, conditions were drier than today. Global climate simulations suggest a positive P-E on the Altiplano, due to a strong cooling, reducing evaporative demand more than any increase in precipitations. An increase of winter precipitation from the Pacific is in agreement with data from the Chilean coast showing a northward locations of the Westerlies during the LGM. This paleoclimatic hypothesis is also in agreement with a coupled ocean-atmosphere model, which indicates weaker summer precipitation and stronger winter precipitation in the tropical areas.
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Absy, M. L., A. Cleef, M. Fournier, M. Martin, M. Servant, A. Sifeddine, M. Ferreira da Silva, F. Soubies, K. Suguio, B. Turcq & T. Van der Hammen, 1991. Mise en évidence de quatre phases d'ouverture de la forêt dense dans le sud-est de l'Amazonie au cours des 60 000 dernières années. Première comparaison avec d'autres régions tropicales. C. R. Acad. Sci. Paris 312 II: 673–678.
Blodgett, T. A., J. D. Lenters & B. L. Isacks, 1997. Constraints on the origin of Paleolake Expansions in the Central Andes. Earth Interac. 1: 1–33.
Bradbury, J. P., B. Leyden, M. L. Salgado-Labouriau, W. M. Lewis, C. Schubert, M. W. Binford, D. G. Frey, D. R. Whitehead & F. H. Weibezahn, 1981. Late Quaternary environmental history of Lake Valencia, Venezuela. Science 214: 1299–1305.
Causse, C., B. Ghaleb, C. Hillaire-Marcel, J. Casanova, M. Fournier, J. M. Rouchy & M. Servant, 1995. New U-Th dates (TIMS) from algal bioherms of the 'Minchin' (Middle Wurm) and from 56 stromatolites of the early 'Tauca' (Late Glacial) lacustrine phases of Bolivian Altiplano. European Union of Geosciences, Strasbourg, France, abstract.
Clapperton, C., 1993. Quaternary Geology and Geomorphology of South America. Elsevier Science Publishers, 779 pp.
Colinvaux, P. A., P. E. De Oliveira, J. E. Moreno, M. C. Miller & M. B. Bush, 1996. A long pollen record from lowland Amazonia: forest and cooling in Glacial times. Science 274: 85–88.
Farrera, I., S. P. Harrison, I. C. Prentice, G. Ramstein, J. Guiot, P. J. Bartlein, R. Bonnefille, M. Bush, W. Cramer, U. von Grafenstein, K. Holmgren, H. Hooghiemstra, G. Hope, D. Jolly, S.-E. Lauritzen, Y. Ono, S. Pinot, M. Stute & G. Yu, 1999. Tropical climates at the Last Glacial Maximum: a new synthesis of terrestrial palaeoclimate data. I. Vegetation, lake-levels and geochemistry. Clim. Dynamics 15: 823–856.
Fontes, J. C. & F. Gasse, 1991. PALHYDAF (Palaeohydrology in Africa) program: objectives, methods, major results. Palaeogeogr. Palaeoclim. Palaeoecol. 84: 191–215.
Frenguelli, J., 1929. Diatomee fossili delle conche saline del deserto cileno-boliviano. Boll. Soc. Geol. Ital. 47: 185–236.
Frenguelli, J., 1936. Diatomeas de la caliza de la Cuenca de Calama. Rev. Mus. La Plata, Secc. Paleontol. 1: 3–120.
Ganopolski, A., S. Rahmstorf, V. Petoukhov & M. Claussen, 1998. Simulation of modern and glacial climates with a coupled global model of intermediate complexity. Nature 391: 351–356.
Garreau, R. D., 1999. Multi-scale analysis of the summertime precipitation over the Central Andes. Month. Weath. Rev. 127: 901–921.
Garreau, R. D. & J. M. Wallace, 1997. The diurnal march of convective cloudiness over the Americas. Month. Weath. Rev. 125: 3157–3171.
Gasse, F., 1986. East African diatoms. In Cramer, J. (ed.), Taxonomy, Ecological Distribution. Bibliotheca Diatomologica. Band 11, 201 pp.
Germain, H., 1981. Flore des diatomées. Soc. Nouv. Ed Boubée, Coll. 'Faunes et Flores actuelles', Paris, 444 pp.
Hardy, D. R., M. Vuille, C. Braun, F. Keimig & R. S. Bradley, 1998. Annual and daily meteorological cycles at high altitude on a tropical mountain. Bull. Am. Meteo. Soc. 79: 1899–1913.
Hendey, N. I., 1964. Bacillariophyceae (Diatoms). In An Introductory Account of the Smaller Algae of British Coastal Waters, Fishery Investigations. HMSO, London, 4, 317 pp.
Hooghiemstra, H. & E. T. H. Ran, 1994. Late Pliocene-Pleistocene high resolution pollen sequence of Colombia: an overview of climatic change. Quat. Internat. 21: 63–80.
Krammer, K. & H. Lange-Bertalot, 1986. Süsswasserflora von Mitteleuropa. Bacillariophyceae. Teil 1: Naviculaceae. VEB Gustav Fischer Verlag, Jena, 876 pp.
Krammer, K. & H. Lange-Bertalot, 1988. Süsswasserflora von Mitteleuropa. Bacillariophyceae. Teil 2: Bacillariaceae, Epithemiaceae, Surirellaceae. VEB Gustav Fischer Verlag, Jena, 596 pp.
Krammer, K. & H. Lange-Bertalot, 1989. In Cramer, J. (ed.), Achnanthes. Eine Monographie der Gattung. Berlin-Stuttgart, 393 pp.
Krammer, K. & H. Lange-Bertalot, 1991. Süsswasserflora von Mitteleuropa. Bacillariophyceae. Teil 3: Centrales, Fragilariaceae, Eunotiaceae. VEB Gustav Fischer Verlag, Jena, 576 pp.
Lamy, F., D. Hebbeln & G. Wefer 1999. High-resolution marine record of climatic change in mid-latitude Chile during the last 28,000 years based on terrigenous parameters. Quat. Res. 51: 83–93.
Ledru, M. P., 1993. Late Quaternary environmental and climatic changes in Central Brazil. Quat. Res. 39: 90–98.
Miller, A., 1976. The climate of Chile. In W. Schwerdtfeger (ed.), The Climates of Central and South America, World Surv. Climatol. 12: 113–145.
Mourguiart, P., J. Argollo, T. Correge, L. Martin, M. E. Montenegro, A. Sifeddine & D. Wirrmann, 1997. Changements limnologiques et climatologiques dans le bassin du lac Titicaca (Bolivie), depuis 30 000 ans. C. R. Acad. Sci. Paris 325: 139–146.
Pinot, S., G. Ramstein, S. P. Harrison, I. C. Prentice, J. Guiot, M. Stute & S. Joussaume, 1999. Tropical paleoclimates at the Last Glacial Maximum: comparison of Paleoclimate Modeling Intercomparison Project (PMIP) simulations and paleodata. Clim. Dynamics 15: 857–874.
Risacher, F., 1992. Géochimie des lacs salés et croûtes de sel de l'Altiplano bolivien. Sci. Geol. Bull. 45: 219 pp.
Roche, M. A., J. Bourges, J. Cortes & R. Mattos, 1992. Climatology and hydrology of the Lake Titicaca basin. In Dejoux, C. & A. Iltis (eds), Lake Titicaca. A Synthesis of Limnological Knowledge. Kluwer Academic Publishers, 63–88.
Rondeau, B., 1990. Géochimie isotopique et géochronologie des stromatolites lacustres quaternaires de l'Altiplano bolivien. Mémoire de Maîtrise, Université du Québec, Montréal, 100 pp.
Roux, M., S. Servant-Vildary & M. Servant, 1991. Inferred ionic composition and salinity of a Bolivian quaternary lake as estimated from fossil diatoms in the sediments. Hydrobiologia 210: 3–18.
Salgado-Labouriau, M. L., 1997. Late Quaternary palaeoclimate in the savannas of South America. J. Quat. Sci. 12: 371–379.
Schoeman, F. R., 1973. Systematical and ecological study of the diatom flora of Lesotho with special reference to water quality. V&R Printers, Pretoria, 355 pp.
Servant, M. & J. C. Fontes, 1978. Les lacs quaternaires des hauts plateaux des Andes Boliviennes. Premières interprétations paléoclimatiques. Cah. O.R.S.T.O.M. Sér. Géol. 10: 9–23.
Servant, M., M. Fournier, J. Argollo, S. Servant-Vildary, F. Sylvestre, D. Wirrmann & J. P. Ybert, 1995. La dernière transition glaciaire/interglaciaire des Andes tropicales sud (Bolivie) d'après l'étude des variations des niveaux lacustres et des fluctuations glaciaires. C. R. Acad. Sci. Paris 320: 729–736.
Servant-Vildary, S., 1978. Les diatomées des sédiments superficiels d'un lac salé, chloruré, sulfaté sodique de l'Altiplano bolivien, le lac Poopò. Cah. O.R.S.T.O.M. Sér. Géol. 10: 79–90.
Servant-Vildary, S., 1992. The diatoms. In Dejoux, C. & A. Iltis (eds), Lake Titicaca. A Synthesis of Limnological Knowledge. Kluwer Academic Publishers, 163–176.
Servant-Vildary, S. & M. Roux, 1990. Multivariate analysis of diatoms and water chemistry in Bolivian saline lakes. Hydrobiologia 197: 267–290.
Sifeddine, A., F. Fröhlich, M. Fournier, L. Martin, M. Servant, F. Soubiès, B. Turcq, K. Suguio & C. Volkmer-Ribeiro, 1994. La sédimentation lacustre indicateur de changements des paléoenvironnements au cours des 30 000 dernières années (Carajas, Amazonie, Brésil). C. R. Acad. Sci. Paris 318: 1645–1652.
Sylvestre, F., 1997. La dernière transition glaciaire-interglaciaire (18 000–8 000 14C ans B.P.) dans les Andes tropicales sud (Bolivie) d'après l'étude des diatomées. Ph.D, National Museum Natural History, Paris, 243 pp.
Sylvestre, F., S. Servant-Vildary & M. Servant, 1998. Le Dernier Maximum glaciaire (21 000–17 000 14C ans B.P.) dans les Andes tropicales de Bolivie d'après l'étude des diatomées. C. R. Acad. Sci. Paris 327: 611–618.
Sylvestre, F., M. Servant, S. Servant-Vildary, C. Causse & M. Fournier, 1999. Lake-level chronology in the south Bolivian Altiplano (18–23 ° S) during Late-Glacial and early Holocene times based on radiocarbon, U/Th ages and diatom studies. Quat. Res. 51: 54–66.
Sylvestre, F., S. Servant-Vildary & M. Roux. Diatom-based ionic concentration and salinity models from the south Bolivian Altiplano (15–23° S). J. Paleolim. in press.
Thompson, L. G., E. Mosley-Thompson, M. E. Davis, P.-N. Lin, K. A. Henderson, J. Cole-Dai, J. F. Bolzan & K. Liu, 1995. Late Glacial Stage and Holocene Tropical Ice Core Records from Huascarán, Peru. Science 269: 46–50.
Vuille, M., 1999. Atmospheric circulation over the Bolivian Altiplano during dry and wet periods and extreme phases of the southern oscillation. Int. J. Climatol 19: 1579–1600.
Vuille, M. & M. F. Baumgartner, 1993. Hydrological investigations in the North Chilean Altiplano using Landsat-MSS and TM data. Geocarto Internat. 3: 35–45.
Vuille, M. & C. Amman, 1997. Regional snowfall patterns in the high, arid Andes. Climatic change 36: 413–423.
Vuille, M. & M. F. Baumgartner, 1998. Monitoring the regional and Temporal variability of winter snowfall in the arid Andes using digital NOAA/AVHRR data. Geocarto Internat. 13: 59–67.
Vuille, M., D. R. Hardy, C. Braun, F. Keimig & R. S. Bradley, 1998. Atmospheric circulation anomalies associated with 1996/1997 summer precipitation events on Sajama Ice Cap, Bolivia. J. Geophys. Res. 103: 11,191–11,204.
Ward, J. H., 1963. Hierarchical grouping to optimize an objective function. J. Am. Stat. Ass. 58: 236–244.
Wirrmann, D., J. P. Ybert & P. Mourguiart, 1992. A 20,000 years palaeohydrological record from Lake Titicaca. In Dejoux, C. & A. Iltis (eds), Lake Titicaca. A Synthesis of Limnological Knowledge. Kluwer Academic Publishers, 40–48.
Wirrmann, D. & P. Mourguiart, 1995. Late Quaternary spatio-temporal limnological variations in the Altiplano of Bolivia and Peru. Quat. Res. 43: 344–354.
Ybert, J. P., 1992. Ancient lake environments as deduced from pollen analysis. In Dejoux, C. & A. Iltis (eds), Lake Titicaca. A Synthesis of Limnological Knowledge. Kluwer Academic Publishers, 49–62.
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Sylvestre, F. A high-resolution diatom reconstruction between 21,000 and 17,4000 14C yr BP from the southern Bolivian Altiplano (18–23°S). Journal of Paleolimnology 27, 45–57 (2002). https://doi.org/10.1023/A:1013542907394
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DOI: https://doi.org/10.1023/A:1013542907394