Chiessi, Cristiano Mazur; Mulitza, Stefan; Pätzold, Jürgen; Wefer, Gerold (2010): Al/Si record of sediment core GeoB6211-2. PANGAEA, https://doi.org/10.1594/PANGAEA.736806, Supplement to: Chiessi, CM et al. (2010): How different proxies record precipitation variability over southeastern South America. IOP Conference Series: Earth and Environmental Science, 9(1), 012007, https://doi.org/10.1088/1755-1315/9/1/012007
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Detrending natural and anthropogenic components of climate variability is arguably an issue of utmost importance to society. To accomplish this issue, one must rely on a comprehensive understanding of the natural variability of the climate system on a regional level. Here we explore how different proxies (e.g., stalagmite oxygen isotopic composition, pollen percentages, bulk sediment elemental ratios) record Holocene precipitation variability over southeastern South America. We found a general good agreement between the different records both on orbital and centennial time-scales. Dry mid Holocene, and wet late Holocene, Younger Dryas and a period between ~9.4 and 8.12 cal kyr BP seem to be pervasive features. Moreover, we show that proxy-specific sensitivity can greatly improve past precipitation reconstructions.
Latitude: -32.505200 * Longitude: -50.242700
Date/Time Start: 1999-12-12T17:21:00 * Date/Time End: 1999-12-12T17:21:00
Minimum DEPTH, sediment/rock: 0.040 m * Maximum DEPTH, sediment/rock: 1.230 m
GeoB6211-2 * Latitude Start: -32.505200 * Longitude Start: -50.242700 * Latitude End: -32.505200 * Longitude End: -50.242700 * Date/Time: 1999-12-12T17:21:00 * Elevation Start: -657.0 m * Elevation End: -657.0 m * Recovery: 7.74 m * Location: Argentine Basin * Campaign: M46/2 * Basis: Meteor (1986) * Method/Device: Gravity corer (Kiel type) (SL)
238 data points