Spanish saline lake dataset
|EDDI dataset code||Spain|
|Number of samples||74|
|Collection date||1990 - 1993|
The Spanish training set includes 74 samples from 57 sites situated between 42衹 and 36訕 in latitude, 6訖 and 2蚩 in longitude. Sampling was restricted to endorheic zones of flat topography, from the interior plateau: La Mancha and Albacete (central Spain) and Zamora (northeastern Spain), and from the lowlands of Andaluc燰 (southern Spain) and the Ebro basin (northeastern Spain), at altitudes ranging from 2-1020m asl. Conductivity ranges from 150 to 338,000 猶 cm-1. There is a tendency for water chemistry to be dominated by sulphates in the central plateau region, chlorides in Andaluc燰, and mixed chloride- or sulphate-dominance in the Ebro basin, dependent on the mineralogy of underlying Tertiary or Triassic marine or continental evaporites. Carbonate-dominated waters are rare, comprising a small number of freshwater, karstic systems. Samples were collected by J. Reed during her PhD (UCL Geography). Following removal of four outliers from the training set, a conductivity transfer function (r2 = 0.91) was derived for Spanish salt lakes (Reed 1995, 1998), which has been applied to one Spanish sequence (Reed 1995, Reed in press, Reed et al., 2001) and in unpublished work in Mexico. Based mainly on the above combined African transfer function, optima from the Spanish transfer function were also used in conductivity reconstruction for sites in Turkey (Reed et al. 1999, Roberts et al. 2001).
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Publications for this dataset:
Reed, J. (1995). The potential of diatoms, ostracods and other palaeolimnological indicators for Holocene palaeoclimate research in southern Spanish salt lakes. Limnetica 12: 25-39.
Reed, J. (1995). The potential of diatoms and other palaeolimnological indicators for Holocene palaeoclimate reconstruction from Spanish salt lakes, with special reference to the Laguna de Medina (Cadiz, southwest Spain). Unpublished PhD, University College London.
Reed, J. M. (1998). Diatom preservation in the recent sediment record of Spanish lakes: implications for palaeoclimate study. Journal of Paleolimnology 19: 129-137.
Reed, J. M. (1998). A diatom-conductivity transfer function for Spanish salt lakes. Journal of Paleolimnology 19: 399-416.
Reed, J.M., Roberts, N. and Leng, M.J., 1999. An evaluation of the diatom response to Late Quaternary environmental change in two lakes in the Konya Basin, Turkey, by comparison with stable isotope data. Quaternary Science Reviews 18: 631-647.
Reed, J.M., Stevenson, A.C. and Juggins, S., 2001. A multi-proxy record of Holocene climate change in southwest Spain: the Laguna de Medina, C墂iz. The Holocene 11: 705-717.
Roberts, N., Reed, J., Leng. M.J., Kuzucuoglu, C., Fontugne, M., Bertaux, J., Woldring, H., Bottema, S., Black, S., Hunt, E. and Karabiyikoglu, M.., 2001. The tempo of Holocene climatic change in the eastern Mediterranean region: new high-resolution crater-lake sediment data from central Turkey. The Holocene 11.