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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

Project Details

Project Location

Project Timeline

Moratorium Phase


Sampling Party 2

12 - 22 June 2017 in Minneapolis, USA

Sampling Party 1

28 March - 14 April 2017 in Minneapolis, USA


31 October - 20 December 2016

Full Proposal Approved

First Full Proposal Submitted

Workshop Held

10 - 14 September 2012 in Nairobi and Taveta, Kenya

Workshop Proposal Approved