noaa-lake-6065 Laguna Potrok Aike, Argentina Stage 3 Sediment Data Haberzettl, T.; Ohlendorf, C.; Zolitschka, B. Laguna Potrok Aike, Argentina Stage 3 Sediment Data 2008-01-01 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/6065 Investigator T. Haberzettl Investigator C. Ohlendorf Investigator B. Zolitschka earth science paleoclimate paleolimnology depth,null,null,centimeter,null,paleolimnology,averaged,null,N,null earth science paleoclimate paleolimnology vanadium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology copper,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology nitrogen,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null earth science paleoclimate paleolimnology sulfur,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null earth science paleoclimate paleolimnology strontium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology zinc,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology inorganic carbon,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null earth science paleoclimate paleolimnology lead,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology iron/manganese,sediment,null,dimensionless,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology titanium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology iron,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology nickel,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology water content,sediment,null,percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology calcium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology chromium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology density,dry sediment,null,gram per cubic centimeter,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology volume magnetic susceptibility,sediment,null,dimensionless (SI system),null,paleolimnology,null,null,N,x10-6 units earth science paleoclimate paleolimnology magnetic susceptibility,sediment,null,percent,null,paleolimnology,null,null,N,frequency-dependent magnetic susceptibility earth science paleoclimate paleolimnology carbon/nitrogen,sediment,null,dimensionless,null,paleolimnology,null,elemental analysis,N,total organic carbon/total nitrogen earth science paleoclimate paleolimnology cobalt,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology potassium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology carbon,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null earth science paleoclimate paleolimnology organic carbon,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null earth science paleoclimate paleolimnology manganese,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleolimnology geochemistry geoscientificInformation PAGES 2k Network PAGES LOTRED SA2k 44800 cal yr BP -48 cal yr BP Complete -51.95 -51.95 -70.3833 -70.3833 113 113 Continent South America Argentina Laguna Potrok Aike>LATITUDE -51.95>LONGITUDE -70.3833 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

325 Broadway, E/NE31

Boulder CO 80305-3328 USA online ASCII Torsten Haberzettl, Barbara Kück, Sabine Wulf, Flavio Anselmetti, Daniel Ariztegui, Hugo Corbella, Michael Fey, Stephanie Janssen, Andreas Lücke, Christoph Mayr, Christian Ohlendorf, Frank Schäbitz, Gerhard H. Schleser, Michael Wille, Bernd Zolitschka 2008 Palaeogeography, Palaeoclimatology, Palaeoecology 259 2-3 213-229 10.1016/j.palaeo.2007.10.008 http://www.sciencedirect.com/science/article/pii/S0031018207005111

Seismic reflection studies in the maar lake Laguna Potrok Aike (51°58' S, 70°23' W) revealed an erosional unconformity associated with a sub-aquatic lake-level terrace at a water depth of 30m. Radiocarbon-dated, multi-proxy sediment studies of a piston core from this location indicate that the sediment below this discontinuity has an age of 45kyr BP (Oxygen Isotope Stage 3), and was deposited during an interval of high lake level. In comparison to the Holocene section, geochemical indicators of this older part of the record either point towards a different sediment source or to a different transport mechanism for Oxygen Isotope Stage 3 sediments. Holocene sedimentation started again before 6790cal. yr BP, providing a sediment record of hydrological variability until the present. Geochemical and isotopic data indicate a fluctuating lake level until 5310cal. yr BP. During the late Holocene the lake level shows a receding tendency. Nevertheless, the lake level did not drop below the 30m terrace to create another unconformity. The geochemical characterization of volcanic ashes reveals evidence for previously unknown explosive activity of the Reclús and Mt. Burney volcanoes during Oxygen Isotope Stage 3. STUDY NOTES: Multiproxy record from a submerged lake level terrace (30-35 m below present lake level) with a hiatus that ended around 7000 cal. BP and which is indicative for a major drought. The duration of the hiatus is unknown up to now.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/southamerica/argentina/potrok2008.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/southamerica/argentina/potrok2008.xls USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11