000006422 001__ 6422
000006422 005__ 20180208232148.0
000006422 0247_ $$2DOI$$a10.1016/j.palaeo.2009.01.012
000006422 0247_ $$2WOS$$aWOS:000271364500015
000006422 037__ $$aPreJuSER-6422
000006422 041__ $$aeng
000006422 082__ $$a550
000006422 084__ $$2WoS$$aGeography, Physical
000006422 084__ $$2WoS$$aGeosciences, Multidisciplinary
000006422 084__ $$2WoS$$aPaleontology
000006422 1001_ $$0P:(DE-HGF)0$$aFey, M.$$b0
000006422 245__ $$aPalaeoenvironmental changes during the last 1600 years inferred from the sediment record of a cirque lake in southern Patagonia (Laguna Las   Vizcachas, Argentina)
000006422 260__ $$aAmsterdam [u.a.]$$bElsevier Science$$c2009
000006422 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
000006422 3367_ $$2DataCite$$aOutput Types/Journal article
000006422 3367_ $$00$$2EndNote$$aJournal Article
000006422 3367_ $$2BibTeX$$aARTICLE
000006422 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000006422 3367_ $$2DRIVER$$aarticle
000006422 440_0 $$013362$$aPalaeogeography Palaeoclimatology Palaeoecology$$v281$$x0031-0182$$y3
000006422 500__ $$aThe authors would like to express their thanks to the owner of Estancia Las Vizcachas for permitting access to the lake. The staff of INTA, Rio Gallegos are acknowledged for their assistance in organizing the logistics of the field work. We thank Sabine Stahl for assistance with sampling and geochemical analyses. We are much obliged to Thomas Frederichs and Christian Hilgenfeldt (Department of Marine Geophysics, University of Bremen) for access to their magnetic susceptibility measuring bench. Stephanie Janssen and Michael Wille are acknowledged for inspiring discussions and excellent collaboration in the SALSA-team. We thank Daniel Ariztegui and an anonymous reviewer for valuable comments on an earlier version of the manuscript. An anonymous language editor is acknowledged for improvements in language and style of the English text. This is a contribution to the project "South Argentinean Lake Sediment Archives and modeling" (SALSA) within the framework of the German Climate Research Program DEKLIM (grants 01 LD 0034 and 0035) of the German Federal Ministry of Education and Research (BMBF). Additional financial support was provided by the German Science Foundation (DFG) in the framework of the Priority Program 'ICDP' (grant ZO 102/5-1, 2, 3).
000006422 520__ $$aLaguna Las Vizcachas is a cirque lake located at the margin of an extra-Andean volcanic plateau in southern Patagonia, Argentina, within the area of steppe and semi-desert east of the Andes. The number of paleoenvironmental records is still limited in this region. Sediments of this lake were studied in order to obtain multi-proxy information about the paleoenvironmental history of this site for the 'Medieval Climate Anomaly' and the 'Little Ice Age' chronozones. In combination with results from other sites across southern Patagonia, our data enhance the understanding of spatial patterns of past hydrological changes and contribute to distinguishing between the signals of temperature and precipitation. As Laguna Las Vizcachas is situated at 1100 m a.s.l. in a cool 'mountain climate', the lake system is more sensitive to changes of temperature and winter ice cover than other sites from lower elevations in this region. Our interpretation of the multi-proxy dataset is based on signals of clastic sediment input, lake productivity, organic matter sources and preservation, dilution effects and early diagenetic overprint. The record reveals a period of enhanced fluvial runoff resulting from higher precipitation from the 12th until the end of the 14th century as inferred from high concentrations of Ti, Ca, and from magnetic susceptibility. This may coincide with higher wind intensities as suggested by higher proportions of epiphytic diatoms which point to an enhanced lateral transport from their littoral habitat towards the coring position at the center of the lake. in comparison with other records from southern Patagonia, the results from Laguna Las Vizcachas suggest opposite precipitation regimes between the western and eastern parts of Patagonia during that time which corresponds partly to the 'Medieval Climate Anomaly' chronozone. However, this proposal is compromised by the chronological uncertainties of the different records under consideration. The diatom record of Laguna Las Vizcachas indicates temperature changes: highest proportions of benthic diatoms point to coldest conditions from the mid-15th until the mid-17th century, followed by relatively warm conditions until the mid-18th century as suggested by a decrease of benthic taxa and a conspicuous rise of the planktonic/non-planktonic diatom ratio that can be used as an indicator for the length or presence/absence of winter ice cover. (C) 2009 Elsevier B.V. All rights reserved.
000006422 536__ $$0G:(DE-Juel1)FUEK407$$2G:(DE-HGF)$$aTerrestrische Umwelt$$cP24$$x0
000006422 588__ $$aDataset connected to Web of Science
000006422 65320 $$2Author$$aLake sediments
000006422 65320 $$2Author$$aGeochemistry
000006422 65320 $$2Author$$aDiatoms
000006422 65320 $$2Author$$aPalaeoclimatology
000006422 65320 $$2Author$$a'Medieval Climate Anomaly'
000006422 65320 $$2Author$$a'Little Ice Age'
000006422 65320 $$2Author$$aPatagonia
000006422 650_7 $$2WoSType$$aJ
000006422 7001_ $$0P:(DE-HGF)0$$aKorr, C.$$b1
000006422 7001_ $$0P:(DE-HGF)0$$aMaidana, N. I.$$b2
000006422 7001_ $$0P:(DE-HGF)0$$aCarrevedo, M.L.$$b3
000006422 7001_ $$0P:(DE-HGF)0$$aDietrich, S.$$b4
000006422 7001_ $$0P:(DE-HGF)0$$aCorbella, H.$$b5
000006422 7001_ $$0P:(DE-HGF)0$$aHaberzettl, T.$$b6
000006422 7001_ $$0P:(DE-HGF)0$$aKuhn, G.$$b7
000006422 7001_ $$0P:(DE-Juel1)129567$$aLücke, A.$$b8$$uFZJ
000006422 7001_ $$0P:(DE-HGF)0$$aMayr, C.$$b9
000006422 7001_ $$0P:(DE-HGF)0$$aOhlendorf, C.$$b10
000006422 7001_ $$0P:(DE-Juel1)VDB14742$$aSchäbitz, F.$$b11$$uFZJ
000006422 7001_ $$0P:(DE-Juel1)VDB1850$$aZolitschka, B.$$b12$$uFZJ
000006422 773__ $$0PERI:(DE-600)1497393-5$$a10.1016/j.palaeo.2009.01.012$$gVol. 281$$q281$$tPalaeogeography, palaeoclimatology, palaeoecology$$v281$$x0031-0182$$y2009
000006422 8567_ $$uhttp://dx.doi.org/10.1016/j.palaeo.2009.01.012
000006422 909CO $$ooai:juser.fz-juelich.de:6422$$pVDB
000006422 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed
000006422 9141_ $$y2009
000006422 9131_ $$0G:(DE-Juel1)FUEK407$$aDE-HGF$$bErde und Umwelt$$kP24$$lTerrestrische Umwelt$$vTerrestrische Umwelt$$x0
000006422 9201_ $$0I:(DE-Juel1)VDB793$$d31.10.2010$$gICG$$kICG-4$$lAgrosphäre$$x1
000006422 970__ $$aVDB:(DE-Juel1)114704
000006422 980__ $$aVDB
000006422 980__ $$aConvertedRecord
000006422 980__ $$ajournal
000006422 980__ $$aI:(DE-Juel1)IBG-3-20101118
000006422 980__ $$aUNRESTRICTED
000006422 981__ $$aI:(DE-Juel1)IBG-3-20101118