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


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

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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