ICDP workshop on the Lake Tanganyika Scientific Drilling Project: a late Miocene–present record of climate, rifting, and ecosystem evolution from the world's oldest tropical lake

James M. Russell (1) , Philip Barker (2) , Andrew S. Cohen (3) , Sarah Ivory (4) , Ishmaël Kimirei (5) , Christine Lane (6) , Melanie Leng (7) , Neema Maganza (8) , Michael M. Mcglue (9) , Emma Msaky (8) , Anders Noren (10) , Lisa Park Boush (11) , Walter Salzburger (12) , Christopher Scholz (13) , Ralph Tiedemann (14) , Shaidu Nuru (8) , Christian Albrecht (15) , Rahma Ali (16) , Ramon Arrowsmith (17) , Danstan Asanga (16) , Yemane Asmerom (18) , Charles Bakundukize (19) , Thorsten Bauersachs (20) , Catherine Beck (21) , Melissa Berke (22) , Emily Beverley (23) , Martin Blaauw (24) , Erik Brown (10) , Chris Campisano (17) , Barbara Carrapa (25) , Isla Castañeda (26) , Sylvia Dee (27) , Alan Deino (28) , Cindy Ebinger (29) , Geoffrey S. Ellis (30) , Verena Foerster (31) , Karen Fontijn (32) , George Gehrels (25) , Adrian Indemaur (12) , Elena Jovanovska (15) , Annett Junginger (33) , Stefanie Kaboth (14) , Jens Kallmeyer (34) , John King (35) , Bronwen Konecky (36) , Darren Mark (37) , Peter Mcintyre (38) , Ellinor Michel (39) , Doreen Mkuu (8) , Leah Morgan (30) , Cassy Mtetela (40) , Nshombo Muderwha (41) , James Muirhead (13) , Cassian Mumbi (42) , Moritz Muschick (43) , David Nahimana (19) , Venosa Ngowi (8) , Pashcal Njiko (8) , Simon Nkenyeli (16) , Hudson Nkotagu (40) , Gaspard Ntakimazi (19) , Davide Oppo (44) , Lotta Purkamo (45) , Jessica Rick (46) , Helen Roberts (47) , Fabrizia Ronco (12) , Charles Sangweni (16) , Yohana Shaghude (40) , Josephat Shigela (8) , Donna Shillington (48) , Chen Shuang Sophia (49) , Mark Sier (50) , Mike Soreghan (51) , Trisha Spanbauer (52) , Charlotte Spencer-Jones (53) , Richard Staff (54) , Jeffery Stone (55) , Jonathan A Todd (39) , Martin Trauth (14) , Bert Van Bocxlaer (56) , Finn Viehberg (31) , Hendrik Vogel (43) , Hubert Vonhof (57) , Chris Wolff (2) , Qinglong Wu (49) , Chad Yost (25) , Christian Zeeden (58)

1 Brown University
2 Lancaster University
3 Department of Geosciences [University of Arizona]
4 Penn State - Pennsylvania State University
5 Tanzania Fisheries Research Institute
6 CAM - University of Cambridge [UK]
7 British Geological Survey [Keyworth]
8 Tanzania Petroleum Development Corporation
9 UK - University of Kentucky
10 UMD - University of Minnesota [Duluth]
11 UCONN - University of Connecticut
12 Unibas - Université de Bâle = University of Basel = Basel Universität
13 Syracuse University
14 University of Potsdam = Universität Potsdam
15 JLU - Justus-Liebig-Universität Gießen = Justus Liebig University
16 Petroleum Upstream Regulatory Authority
17 ASU - Arizona State University [Tempe]
18 The University of New Mexico [Albuquerque]
19 University of Burundi
20 CAU - Christian-Albrechts-Universität zu Kiel = Christian-Albrechts University of Kiel = Université Christian-Albrechts de Kiel
21 Hamilton College
22 UND - University of Notre Dame [Indiana]
23 University of Houston
24 Queen's University [Kingston, Canada]
25 University of Arizona
26 UMass Amherst - University of Massachusetts [Amherst]
27 Rice University [Houston]
28 BGC - Berkeley Geochronology Center
29 Tulane University
30 USGS - United States Geological Survey
31 University of Cologne
32 ULB - Université libre de Bruxelles
33 University of Tübingen
34 GFZ - German Research Centre for Geosciences - Helmholtz-Centre Potsdam
35 URI - University of Rhode Island
36 University of Washington [Seattle]
37 SUERC - Scottish Universities Environmental Research Centre
38 University of Wisconsin-Madison
39 NHM - The Natural History Museum [London]
40 UDSM - Université de Dar es Salaam
41 Hydrobiology Laboratory - Uvira
42 TAWIRI - Tanzania Wildlife Research Institute
43 UNIBE - Universität Bern / University of Bern
44 University of Louisiana
45 GKT - Geological Survey of Finland = Geologian tutkimuskeskus tuottaa
46 UW - University of Wyoming
47 Aberystwyth University
48 LDEO - Lamont-Doherty Earth Observatory
49 Niglas - Nanjing Institute of Geography and Limnology
50 CNIEH
51 OU - University of Oklahoma
52 University of Texas at Austin [Austin]
53 Durham University
54 University of Glasgow
55 Indiana State University
56 Evo-Eco-Paléo (EEP) - Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198
57 MPIC - Max Planck Institute for Chemistry
58 Leibnitz Institute of Applied Geophysics

The Neogene and Quaternary are characterized by enormous changes in global climate and environments , including global cooling and the establishment of northern high-latitude glaciers. These changes reshaped global ecosystems, including the emergence of tropical dry forests and savannahs that are found in Africa today, which in turn may have influenced the evolution of humans and their ancestors. However, despite decades of research we lack long, continuous, well-resolved records of tropical climate, ecosystem changes, and surface processes necessary to understand their interactions and influences on evolutionary processes. Lake Tanganyika, Africa, contains the most continuous, long continental climate record from the mid-Miocene (∼ 10 Ma) to the present anywhere in the tropics and has long been recognized as a top-priority site for scientific drilling. The lake is surrounded by the Miombo woodlands, part of the largest dry tropical biome on Earth. Lake Tanganyika also harbors incredibly diverse endemic biota and an entirely unexplored deep microbial biosphere, and it provides textbook examples of rift segmentation, fault behavior, and associated surface processes. To evaluate the inter-disciplinary scientific opportunities that an ICDP drilling program at Lake Tanganyika could offer, more than 70 scientists representing 12 countries and a variety of scientific disciplines met in Dar es Salaam, Tanzania, in June 2019. The team developed key research objectives in basin evolution, source-to-sink sedimentology, organismal evolution, geomicrobiology, paleoclimatology, paleolimnology, terrestrial paleoecology, paleoanthropology, and Published by Copernicus Publications on behalf of the IODP and the ICDP. 54 J. M. Russell et al.: ICDP workshop on the Lake Tanganyika Scientific Drilling Project geochronology to be addressed through scientific drilling on Lake Tanganyika. They also identified drilling targets and strategies, logistical challenges, and education and capacity building programs to be carried out through the project. Participants concluded that a drilling program at Lake Tanganyika would produce the first continuous Miocene-present record from the tropics, transforming our understanding of global environmental change, the environmental context of human origins in Africa, and providing a detailed window into the dynamics, tempo and mode of biological diversification and adaptive radiations.

Domaines: Biodiversité et Ecologie; Milieux et Changements globaux; Climatologie

James M. Russell, Philip Barker, Andrew S. Cohen, Sarah Ivory, Ishmaël Kimirei, et al.. ICDP workshop on the Lake Tanganyika Scientific Drilling Project: a late Miocene–present record of climate, rifting, and ecosystem evolution from the world's oldest tropical lake. Scientific Drilling, 2020, 27, pp.53-60. ⟨10.5194/sd-27-53-2020⟩. ⟨hal-02917193⟩