The Towuti Drilling Project: Paleoenvironments, biological evolution, and geomicrobiology of a tropical Pacific lake

Authors

• James M. Russell, Brown University
• Satria Bijaksana, Institut Teknologi Bandung
• Hendrik Vogel, University of Bern
• Martin Melles, Universität zu Köln
• Jens Kallmeyer, Deutsches GeoForschungsZentrum (GFZ)
• Daniel Ariztegui, Université de Genève
• Sean Crowe, The University of British Columbia
• Silvia Fajar, Institut Teknologi Bandung
• Abdul Hafidz, Institut Teknologi Bandung
• Doug Haffner, Great Lakes Institute for Environmental Research
• Ascelina Hasberg, Universität zu Köln
• Sarah Ivory, Brown University
• Christopher Kelly, Brown University
• John King, University of Rhode Island
• Kartika Kirana, Institut Teknologi Bandung
• Marina Morlock, University of Bern
• Anders Noren, University of Minnesota Twin Cities
• Ryan O'Grady, University of Minnesota Twin Cities
• Luis Ordonez, Université de Genève
• Janelle Stevenson, The Australian National University
• Thomas von Rintelen, Museum für Naturkunde
• Aurele Vuillemin, Deutsches GeoForschungsZentrum (GFZ)
• Ian Watkinson, Royal Holloway, University of London
• Nigel Wattrus, University of Minnesota Duluth
• Satrio Wicaksono, Brown University
• Thomas Wonik, Leibniz Institute for Applied Geophysics (LIAG)
• Kohen Bauer, The University of British Columbia
• Alan Deino, Berkeley Geochronology Center
• André Friese, Deutsches GeoForschungsZentrum (GFZ)
• Cynthia Henny, Lembaga Ilmu Pengetahuan Indonesia
• Imran, Hasanuddin University
• Ristiyanti Marwoto, Lembaga Ilmu Pengetahuan Indonesia
• La Ode Ngkoimani, Universitas Halu Oleo
• Sulung Nomosatryo, Deutsches GeoForschungsZentrum (GFZ)
• La Ode Safiuddin, Universitas Halu Oleo
• Rachel Simister, The University of British Columbia

Document Type

Article

Date of Original Version

7-27-2016

Abstract

The Towuti Drilling Project (TDP) is an international research program, whose goal is to understand long-term environmental and climatic change in the tropical western Pacific, the impacts of geological and environmental changes on the biological evolution of aquatic taxa, and the geomicrobiology and biogeochemistry of metal-rich, ultramafic-hosted lake sediments through the scientific drilling of Lake Towuti, southern Sulawesi, Indonesia. Lake Towuti is a large tectonic lake at the downstream end of the Malili lake system, a chain of five highly biodiverse lakes that are among the oldest lakes in Southeast Asia. In 2015 we carried out a scientific drilling program on Lake Towuti using the International Continental Scientific Drilling Program (ICDP) Deep Lakes Drilling System (DLDS). We recovered a total of ~ 1018m of core from 11 drilling sites with water depths ranging from 156 to 200 m. Recovery averaged 91.7 %, and the maximum drilling depth was 175m below the lake floor, penetrating the entire sedimentary infill of the basin. Initial data from core and borehole logging indicate that these cores record the evolution of a highly dynamic tectonic and limnological system, with clear indications of orbital-scale climate variability during the mid- to late Pleistocene.

Publication Title, e.g., Journal

Scientific Drilling

Volume

21

Citation/Publisher Attribution

Russell, James M., Satria Bijaksana, Hendrik Vogel, Martin Melles, Jens Kallmeyer, Daniel Ariztegui, Sean Crowe, Silvia Fajar, Abdul Hafidz, Doug Haffner, Ascelina Hasberg, Sarah Ivory, Christopher Kelly, John King, Kartika Kirana, Marina Morlock, Anders Noren, Ryan O'Grady, Luis Ordonez, Janelle Stevenson, Thomas von Rintelen, Aurele Vuillemin, Ian Watkinson, Nigel Wattrus, Satrio Wicaksono, Thomas Wonik, Kohen Bauer, Alan Deino, André Friese, Cynthia Henny, Imran, Ristiyanti Marwoto, La O. Ngkoimani, Sulung Nomosatryo, La O. Safiuddin, and Rachel Simister. "The Towuti Drilling Project: Paleoenvironments, biological evolution, and geomicrobiology of a tropical Pacific lake." Scientific Drilling 21, (2016). doi: 10.5194/sd-21-29-2016.