[Zolitschka] Pre-site survey for potential new ICDP sites in southern Patagonia (Argentina)

German Title: Pre-site survey for potential new ICDP sites in southern Patagonia (Argentina)

Abbreviation: 178

Current Status: completed with report

Main Applicant:Prof. Dr. Bernd Zolitschka

Resources Recipient

Other Persons

Dr. Frank Niessen
Dr. Catalina Gebhardt

Conveyor Begin: 18 February, 2004
Conveyor End: 31 January, 2007
Conveyor Duration: 36
Year: 2004


We propose to carry out an airgun seismic survey for the planned ICDP coring site (scheduled for the GLAD200 system) at the 1 to 2 Ma old maar Laguna Potrok Aike and a pre-site survey of so far unstudied crater lakes in the volcanic area of the Meseta Cerro Colorado, both in southern Patagonia (Argentina). Previous and ongoing investigations at Laguna Potrok Aike promise a long and undisturbed sediment record that might span several glacial/interglacial cycles unidentified for midlatitudes of the southern hemisphere until now. Based on a 3.5 kHz seismic survey a horizontally layered body of pelagic sediments with a thickness exceeding 30-40 m was recognized. Short and piston coring of up to 17m of sediment provide data about Holocene variabilities of the moisture balance - data which is of great value for the prevailing water-dependent sheep farming economy. The maximum sediment thickness is ultimately needed for proposing a new ICDP drilling site and will be achieved by airgun seismic. To optimize the use of financial resources we will use this field trip also for a pre-site survey for bathymetry, physical and chemical limnology, modern pollen and diatoms and surface sediments in the Meseta Cerro Colorado to perhaps come up with a second lake suitable as ICDP coring site thus generating a north-south transect.

Related Publications

Ohlendorf, Christian, Fey, Michael, Gebhardt, Catalina, Haberzettl, Torsten, Lücke, Andreas, Mayr, Christoph, Schäbitz, Frank, Wille, Michael, Zolitschka, Bernd (2013). "Mechanisms of lake-level change at Laguna Potrok Aike (Argentina) – insights from hydrological balance calculations" Quaternary Science Reviews 71 p27-45

Gebhardt, Andrea Catalina, Ohlendorf, Christian, Niessen, Frank, De Batist, Marc, Anselmetti, Flavio S, Ariztegui, Daniel, Kliem, Pierre, Wastegård, Stefan, Zolitschka, Bernd (2012). "Seismic evidence of up to 200 m lake‐level change in Southern Patagonia since Marine Isotope Stage 4" Sedimentology 59 p1087-1100

Anselmetti, Flavio, Ariztegui, D, Batist, MD, Gebhardt, AC, Haberzettl, T, Niessen, F, Ohlendorf, C, Zolitschka, B (2009). "Environmental history of southern Patagonia unraveled by the seismic stratigraphy of Laguna Potrok Aike" Sedimentology 56 p873-892

Haberzettl, Torsten, Anselmetti, Flavio S., Bowen, Sabine W., Fey, Michael, Mayr, Christoph, Zolitschka, Bernd, Ariztegui, Daniel, Mauz, Barbara, Ohlendorf, Christian, Kastner, Stephanie, Lücke, Andreas, Schäbitz, Frank, Wille, Michael (2009). "Late Pleistocene dust deposition in the Patagonian steppe - extending and refining the paleoenvironmental and tephrochronological record from Laguna Potrok Aike back to 55 ka" Quaternary Science Reviews 28 p2927-2939

Fey, Michael, Korr, Christian, Maidana, Nora I., Carrevedo, María L., Corbella, Hugo, Dietrich, Sara, Haberzettl, Torsten, Kuhn, Gerhard, Lücke, Andreas, Mayr, Christoph, Ohlendorf, Christian, Paez, Marta M., Quintana, Flavia A., Schäbitz, Frank, Zolitschka, Bernd (2009). "Palaeoenvironmental changes during the last 1600 years inferred from the sediment record of a cirque lake in southern Patagonia (Laguna Las Vizcachas, Argentina)" Palaeogeography, Palaeoclimatology, Palaeoecology 281 p363-375

Zolitschka, Bernd, Schäbitz, Frank, Lücke, Andreas, Corbella, Hugo, Ercolano, Bettina, Fey, Michael, Haberzettl, Torsten, Janssen, Stephanie, Maidana, Nora, Mayr, Christoph, Ohlendorf, Christian, Oliva, Gabriel, Paez, Marta M., Schleser, Gerhard H., Soto, Julio, Tiberi, Pedro, Wille, Michael (2006). "Crater lakes of the Pali Aike Volcanic Field as key sites for paleoclimatic and paleoecological reconstructions in southern Patagonia, Argentina" Journal of South American Earth Sciences 21 p294-309