Environment and climate of the last 51,000years - new insights from the Potrok Aike maar lake Sediment Archive Drilling prOject (PASADO)
In this introductory paper we summarize the history and achievements of the Potrok Aike maar lake Sediment Archive Drilling prOject (PASADO), an interdisciplinary project embedded in the International Continental Scientific Drilling Program (ICDP). The stringent multiproxy approach adopted in this r...
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todo:paper_02773791_v71_n_p1_Zolitschka2023-10-03T15:16:03Z Environment and climate of the last 51,000years - new insights from the Potrok Aike maar lake Sediment Archive Drilling prOject (PASADO) Zolitschka, B. Anselmetti, F. Ariztegui, D. Corbella, H. Francus, P. Lücke, A. Maidana, N.I. Ohlendorf, C. Schäbitz, F. Wastegård, S. Argentina Holocene ICDP Lake level Last Glacial Southern Hemispheric Westerlies Southern Patagonia Water balance Argentina Holocenes ICDP Lake levels Last glacial Patagonia Southern Hemispheric Westerlies Water balance Climatology Sedimentology Lakes Holocene interdisciplinary approach lacustrine deposit luminescence dating maar radiocarbon dating Southern Hemisphere twentieth century water budget Argentina Laguna Potrok Aike Santa Cruz [Argentina] In this introductory paper we summarize the history and achievements of the Potrok Aike maar lake Sediment Archive Drilling prOject (PASADO), an interdisciplinary project embedded in the International Continental Scientific Drilling Program (ICDP). The stringent multiproxy approach adopted in this research combined with radiocarbon and luminescence dating provided the opportunity to synthesize a large body of hydrologically relevant data from Laguna Potrok Aike (southern Patagonia, Argentina). At this site, lake level was high from 51ka until the early Holocene when the Southern Hemisphere Westerlies (SHW) were located further to the north. At 9.3kacal.BP the SHW moved southward and over the latitude of the study area (52°S) causing a pronounced negative water balance with a lake level decrease of more than 50m. Two millennia later, the SHW diminished in intensity and lake level rose to a subsequent maximum during the Little Ice Age. Since the 20th century, a strengthening of the SHW increased the evaporative stress resulting in a more negative water balance. A comparison of our data with other hydrological fluctuations at a regional scale in south-eastern Patagonia, provides new insights and also calls for better chronologies and high-resolution records of climate variability. © 2012 Elsevier Ltd. Fil:Maidana, N.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02773791_v71_n_p1_Zolitschka |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Argentina Holocene ICDP Lake level Last Glacial Southern Hemispheric Westerlies Southern Patagonia Water balance Argentina Holocenes ICDP Lake levels Last glacial Patagonia Southern Hemispheric Westerlies Water balance Climatology Sedimentology Lakes Holocene interdisciplinary approach lacustrine deposit luminescence dating maar radiocarbon dating Southern Hemisphere twentieth century water budget Argentina Laguna Potrok Aike Santa Cruz [Argentina] |
| spellingShingle |
Argentina Holocene ICDP Lake level Last Glacial Southern Hemispheric Westerlies Southern Patagonia Water balance Argentina Holocenes ICDP Lake levels Last glacial Patagonia Southern Hemispheric Westerlies Water balance Climatology Sedimentology Lakes Holocene interdisciplinary approach lacustrine deposit luminescence dating maar radiocarbon dating Southern Hemisphere twentieth century water budget Argentina Laguna Potrok Aike Santa Cruz [Argentina] Zolitschka, B. Anselmetti, F. Ariztegui, D. Corbella, H. Francus, P. Lücke, A. Maidana, N.I. Ohlendorf, C. Schäbitz, F. Wastegård, S. Environment and climate of the last 51,000years - new insights from the Potrok Aike maar lake Sediment Archive Drilling prOject (PASADO) |
| topic_facet |
Argentina Holocene ICDP Lake level Last Glacial Southern Hemispheric Westerlies Southern Patagonia Water balance Argentina Holocenes ICDP Lake levels Last glacial Patagonia Southern Hemispheric Westerlies Water balance Climatology Sedimentology Lakes Holocene interdisciplinary approach lacustrine deposit luminescence dating maar radiocarbon dating Southern Hemisphere twentieth century water budget Argentina Laguna Potrok Aike Santa Cruz [Argentina] |
| description |
In this introductory paper we summarize the history and achievements of the Potrok Aike maar lake Sediment Archive Drilling prOject (PASADO), an interdisciplinary project embedded in the International Continental Scientific Drilling Program (ICDP). The stringent multiproxy approach adopted in this research combined with radiocarbon and luminescence dating provided the opportunity to synthesize a large body of hydrologically relevant data from Laguna Potrok Aike (southern Patagonia, Argentina). At this site, lake level was high from 51ka until the early Holocene when the Southern Hemisphere Westerlies (SHW) were located further to the north. At 9.3kacal.BP the SHW moved southward and over the latitude of the study area (52°S) causing a pronounced negative water balance with a lake level decrease of more than 50m. Two millennia later, the SHW diminished in intensity and lake level rose to a subsequent maximum during the Little Ice Age. Since the 20th century, a strengthening of the SHW increased the evaporative stress resulting in a more negative water balance. A comparison of our data with other hydrological fluctuations at a regional scale in south-eastern Patagonia, provides new insights and also calls for better chronologies and high-resolution records of climate variability. © 2012 Elsevier Ltd. |
| format |
JOUR |
| author |
Zolitschka, B. Anselmetti, F. Ariztegui, D. Corbella, H. Francus, P. Lücke, A. Maidana, N.I. Ohlendorf, C. Schäbitz, F. Wastegård, S. |
| author_facet |
Zolitschka, B. Anselmetti, F. Ariztegui, D. Corbella, H. Francus, P. Lücke, A. Maidana, N.I. Ohlendorf, C. Schäbitz, F. Wastegård, S. |
| author_sort |
Zolitschka, B. |
| title |
Environment and climate of the last 51,000years - new insights from the Potrok Aike maar lake Sediment Archive Drilling prOject (PASADO) |
| title_short |
Environment and climate of the last 51,000years - new insights from the Potrok Aike maar lake Sediment Archive Drilling prOject (PASADO) |
| title_full |
Environment and climate of the last 51,000years - new insights from the Potrok Aike maar lake Sediment Archive Drilling prOject (PASADO) |
| title_fullStr |
Environment and climate of the last 51,000years - new insights from the Potrok Aike maar lake Sediment Archive Drilling prOject (PASADO) |
| title_full_unstemmed |
Environment and climate of the last 51,000years - new insights from the Potrok Aike maar lake Sediment Archive Drilling prOject (PASADO) |
| title_sort |
environment and climate of the last 51,000years - new insights from the potrok aike maar lake sediment archive drilling project (pasado) |
| url |
http://hdl.handle.net/20.500.12110/paper_02773791_v71_n_p1_Zolitschka |
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