Two Glacial-Interglacial Cycles (ca. 250,000 Years) of Climate and Ecosystem Dynamics on the East African Equator
Project Acronym: DeepCHALLA | State: Completed | Expedition ID: 5061
Long continental climate records from tropical and sub-tropical regions are crucial to resolve long-standing questions about the relative importance of tropical and high-latitude climate processes in translating external climate forcing into regional climate variability. The ICDP drilling project ‘DeepCHALLA' is proposed to exploit the continuous sediment record of Lake Challa in easternmost equatorial Africa. Its principal objective is to acquire high-resolution and well-dated proxy data of continental climate and ecosystem change near the Equator, spanning a full glacial-interglacial cycle (150,000 years, covered by the uppermost ~100 m of Quaternary deposits).
Keywords: Africa, Kenya, Tanzania, Lake Challa, Kilimanjaro, Dynamics, Monsoons, Paleoclimate, Tropical Climate
Cores are stored at University of Minnesota at Minneapolis, Continental Scientific Drilling Facility, USA
Project Management
Contact Person
Lead PIs
- Jaap Damste – University of Utrecht
- Maarten Blaauw – Queen's University Belfast
- Philip Barker – University of Lancaster
- Daniel Olago – University of Nairobi
- Alfred Muzuka Nzibavuga Nyarubakula – Nelson Mandela African Institution of Science and Technology
- Charles Kasansu – University of Dar es Salaam
- Christine Lane – University of Cambridge
- Daniel Conley – Lund University
- David Waldmann – University of Haifa
- Gerald Haug – Max-Planck-Institute Mainz for Chemistry
- Marc De Batist – University of Ghent
- Melanie Leng – British Geological Survey
- Michel Crucifix – Universite Catholique de Louvain
- Pascal Boeckx – University of Ghent
- Pius Yanda – University of Dar es Salaam
- Raimund Muscheler – Lund University
- Stephen Rucina – National Museums of Kenya
- Titus Ombori – Mkwawa University College of Education
- Walter Salzburger – University of Basel
CoPIs
Co-PIs: No data found
Project Details
Project Description
- Title:
- DeepCHALLA: two glacial-interglacial cycles (ca. 250,000 years) of climate and ecosystem dynamics on the East African equator (DeepCHALLA)
- Proposed in:
- 2014
- Current State:
- Completed
- Proposal abstract:
- n.a.
- Geologic age:
- Quaternary
- Number of drillsites (drillholes):
- 1(6)
- Drilled length:
- 432.72 m (31 wellholes/hole attempts/hole deepenings/sidetracks total)
- Cored length:
- 432.72 m
- Core recovered, length:
- 416.13 m
- Core recovered length / Cored length:
- 96.2%
- Core recovered / Drilled length:
- 96.2%
- Expedition #
- 5061
- Location
- Africa, Tanzania, Kenya, Kilimanjaro, Lake Challa, Tanzania, Kenya
- Coordinates
- -3.0000, 38.0000
- Status
- Completed
Project Location
Project Timeline
Moratorium Phase
Ended
Sampling Party 2
12 - 22 June 2017 in Minneapolis, USA
Sampling Party 1
28 March - 14 April 2017 in Minneapolis, USA
Drilling
31 October - 20 December 2016
Full Proposal Approved
First Full Proposal Submitted
Workshop Held
10 - 14 September 2012 in Nairobi and Taveta, Kenya