{"NOAAStudyId":"6065","contactInfo":{"address":"325 Broadway, E/NE31","city":"Boulder","constraints":"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.","country":"USA","dataCenterUrl":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data","email":"paleo@noaa.gov","fax":"303-497-6513","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","phone":"303-497-6280","postalCode":"80305-3328","shortName":"DOC/NOAA/NESDIS/NCEI","state":"CO","type":"CONTACT INFORMATION"},"contributionDate":"2008-01-01","dataPublisher":"NOAA","dataType":"PALEOLIMNOLOGY","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/lake","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-lake-6065.xml","doi":null,"earliestYearBP":44800,"earliestYearCE":-42850,"entryId":"noaa-lake-6065","funding":[],"investigators":"Haberzettl, T.; Ohlendorf, C.; Zolitschka, B.","mostRecentYearBP":-48,"mostRecentYearCE":1998,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/6065","originalSource":null,"publication":[{"abstract":"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.","author":{"name":"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"},"citation":"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. Hydrological variability in southeastern Patagonia and explosive volcanic activity in the southern Andean Cordillera during Oxygen Isotope Stage 3 and the Holocene inferred from lake sediments of Laguna Potrok Aike, Argentina. Palaeogeography, Palaeoclimatology, Palaeoecology, 259(2-3), 213-229. doi: 10.1016/j.palaeo.2007.10.008","edition":null,"identifier":{"id":"10.1016/j.palaeo.2007.10.008","type":"doi","url":"http://dx.doi.org/10.1016/j.palaeo.2007.10.008"},"issue":"2-3","journal":"Palaeogeography, Palaeoclimatology, Palaeoecology","pages":"213-229","pubRank":"1","pubYear":2008,"reportNumber":null,"title":"Hydrological variability in southeastern Patagonia and explosive volcanic activity in the southern Andean Cordillera during Oxygen Isotope Stage 3 and the Holocene inferred from lake sediments of Laguna Potrok Aike, Argentina","type":"publication","volume":"259"}],"reconstruction":"N","scienceKeywords":["PAGES 2k Network","PAGES LOTRED SA2k"],"site":[{"NOAASiteId":"19881","geo":{"geoType":"Feature","geometry":{"coordinates":["-51.95","-70.3833"],"type":"POINT"},"properties":{"easternmostLongitude":"-70.3833","maxElevationMeters":"113","minElevationMeters":"113","northernmostLatitude":"-51.95","southernmostLatitude":"-51.95","westernmostLongitude":"-70.3833"}},"locationName":"Continent>South America>Argentina","mappable":"Y","paleoData":[{"NOAADataTableId":"8096","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>geochemistry"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/southamerica/argentina/potrok2008.txt","linkText":"potrok2008.txt","urlDescription":"Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":"averaged","cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth 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BP and which is indicative for a major drought. The duration of the hiatus is unknown up to now.","version":"1.0","xmlId":"631"}