bre12025-sup-0001-FigS1.tifimage/tif1417KFigure S1. Crossplot of sedimentation rate (mm year−1) versus log time (years). Recent sedimentation rate data derived from radioisotopes are from McGlue et al. (2012a). Long-term sedimentation rates were calculated using basal 14C ages and a constant rate of accumulation over the length of the dated interval (i.e. not including coarse-grained basal units that lack direct age control). Compaction is assumed to be negligible. Average lacustrine sedimentation rate adapted from Cohen (2003). Late Quaternary rates suggest a punctuated stratal record, which is compatible with facies observations in Unit II.
bre12025-sup-0002-FigS2.tifimage/tif13910KFigure S2. Shuttle Radar Topography Mission digital elevation model of tropical and sub tropical South America, illustrating the locations of several palaeolake basins mentioned in the text. 1, Salar de Hombre Muerto, Argentina. 2, Salar de Atacama, Chile. 3, Pozuelos Basin, Argentina. 4, Oligocene wedge-top basins, Bolivia (Horton, 1998). 5, Salar de Uyuni, Bolivia. 6, Rio Desaguadero valley, Bolivia. 7, Lake Titicaca, Peru/Bolivia.
bre12025-sup-0003-TableS1.docxWord document15KTable S1. Summary of core locations, lengths, and age ranges used in this study.
bre12025-sup-0004-TableS2.docxWord document20KTable S2. Radiocarbon geochronology of cores collected from the Pozuelos Basin.
bre12025-sup-0005-TableS3.docxWord document24KTable S3. Lithofacies encountered in Cores 2A, 3A, 4A and 6A. Note that elemental data for Facies B (marked by *) includes values previously published in McGlue et al. (2012a).
bre12025-sup-0006-SupportingText.docxWord document14K 

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