Golfo Elefantes, Chile 5400 Year Glaciomarine Sediment Data Bertrand, S.; Hughen, K.A.; Lamy, F.; Stuut, J.-B.W.; Torrejón, F.; Lange, C.B. Bertrand, S. Hughen, K.A. Lamy, F. Stuut, J.-B.W. Torrejón, F. Lange, C.B. earth science/paleoclimate/paleoceanography (zirconium/aluminum,sediment,null,dimensionless,null,paleoceanography,null,inductively-coupled plasma mass spectrometry,N,null) earth science/paleoclimate/paleoceanography (age,null,null,calendar year before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (clay,sediment,null,percent,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (zirconium,sediment,null,count per second,null,paleoceanography,null,x-ray fluorescence spectroscopy,N,null) earth science/paleoclimate/paleoceanography (sand,sediment,null,percent,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (grain size mean,sediment,null,micrometer,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (silt,sediment,null,percent,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (magnetic susceptibility,sediment,null,dimensionless (SI system),null,paleoceanography,null,magnetic susceptibility measurement,N,x10-6 units) earth science/paleoclimate/paleoceanography (silicon/aluminum,sediment,null,dimensionless,null,paleoceanography,null,inductively-coupled plasma mass spectrometry,N,null) earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (JPC14>LATITUDE -46.449>LONGITUDE -73.798) Glaciers are frequently used as indicators of climate change. However, the link between past glacier fluctuations and climate variability is still highly debated. Here, we investigate the mid- to late-Holocene fluctuations of Gualas Glacier, one of the northernmost outlet glaciers of the Northern Patagonian Icefield, using a multi-proxy sedimentological and geochemical analysis of a 15m long fjord sediment core from Golfo Elefantes, Chile, and historical documents from early Spanish explorers. Our results show that the core can be sub-divided into three main lithological units that were deposited under very different hydrodynamic conditions. Between 5400 and 4180 cal yr BP and after 750 cal yr BP, sedimentation in Golfo Elefantes was characterized by the rapid deposition of fine silt, most likely transported by fluvio-glacial processes. By contrast, the sediment deposited between 4130 and 850 cal yr BP is composed of poorly sorted sand that is free of shells. This interval is particularly marked by high magnetic susceptibility values and Zr concentrations, and likely reflects a major advance of Gualas glacier towards Golfo Elefantes during the Neoglaciation. Several thin silt layers observed in the upper part of the core are interpreted as secondary fluctuations of Gualas glacier during the Little Ice Age, in agreement with historical and dendrochronological data. Our interpretation of the Golfo Elefantes glaciomarine sediment record in terms of fluctuations of Gualas glacier is in excellent agreement with the glacier chronology proposed for the Southern Patagonian Icefield, which is based on terrestrial (moraine) deposits. By comparing our results with independent proxy records of precipitation and sea surface temperature, we suggest that the fluctuations of Gualas glacier during the last 5400 yr were mainly driven by changes in precipitation in the North Patagonian Andes. STUDY NOTES: Sedimentological and geochemical data obtained on sediment core JPC14, collected in Golfo Elefantes, Chile, during cruise NBP0505. The data include magnetic susceptibility (Bartington MS2E point sensor), grain-size of the lithogenic fraction, Zr/Al and Si/Al (ICP-AES measurements), and Zr XRF core scanner counts (ITRAX core scanner). These data are used to reconstruct the fluctuations of Gualas Glacier (Northern Patagonian Icefield) during the last 5400 years. Core JPC14, Golfo Elefantes, Northern Chilean Patagonia: 46.449°S, 73.798°W, 129m water depth NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Bertrand, S. Investigator : Hughen, K.A. Investigator : Lamy, F. Investigator : Stuut, J.-B.W. Investigator : Torrejón, F. Investigator : Lange, C.B. 2012-04-05 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/12895 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/bertrand2012/bertrand2012.xls https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/bertrand2012/bertrand2012.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/bertrand2012/bertrand2012.xls https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/bertrand2012/bertrand2012.txt English https://www.ncdc.noaa.gov/paleo/study/12895 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/bertrand2012/bertrand2012.xls https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/bertrand2012/bertrand2012.txt Bertrand, S., K.A. Hughen, F. Lamy, J.-B.W. Stuut, F. Torrejón, and C.B. Lange. 2012. Precipitation as the main driver of Neoglacial fluctuations of Gualas glacier, Northern Patagonian Icefield. Climate of the Past, Vol. 8, pp. 519-534. www.clim-past.net/8/519/2012/ doi:10.5194/cp-8-519-2012 START YEAR: 5391 cal yr BP * END YEAR: -57 cal yr BP -73.798 -46.449 -73.798 -46.449