| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4738184 | Quaternary Science Reviews | 2007 | 6 Pages |
High-resolution analyses of allochthonous pollen input into crater lake sediments of Laguna Potrok Aike in the semi-arid Patagonian steppe reflect the variability of zonal wind intensities during the Holocene at 52° southern latitude. These indicators for Southern Hemisphere westerlies (SHW) strength vary on centennial timescales in concert with carbon/nitrogen (C/N) ratios and titanium (Ti) contents, interpreted as differential organic matter sources and minerogenic input to the sediment, respectively. The correlations underline a linkage between hydrological variability and west wind variability in Extra-Andean Patagonia. A shift to generally more intense SHW suggests intensification towards modern wind conditions at that latitude since 9.2 ka cal BP.
