期刊
HOLOCENE
卷 20, 期 7, 页码 1079-1091出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0959683610369498
关键词
climate; glaciers; Holocene; hypothesis; Kilimanjaro; Tropics
资金
- Austrian Science Foundation (FWF) [P17415-N10, P20089-N10]
- University of Otago, New Zealand
- U.S. National Science Foundation
- NOAA
- Tanzania Meteorological Agency
- Tharsis Magnus Hyera
- Commission of Science and Technology (COSTECH)
- Tanzania and Kilimanjaro National Park Authorities (TANAPA and KINAPA)
- Tanzania Wildlife Research Institute (TAWIRI)
- Directorate For Geosciences
- Div Atmospheric & Geospace Sciences [0952829] Funding Source: National Science Foundation
- Austrian Science Fund (FWF) [P17415, P20089] Funding Source: Austrian Science Fund (FWF)
Glaciers on Kilimanjaro's highest peak, Kibo, are currently regarded as a persistent feature of the Holocene. Here we synthesize all available measurements, observations, and our understanding of current processes on Kibo - gained from intensive research over the past decade - to formulate an alternative hypothesis about the age of these ice fields. This suggests a shorter, discontinuous history of the tabular-shaped glaciers on Kibo's plateau, where typical 'life cycles' of the ice may last only a few hundred years. If life cycles overlap, they are likely the cause of the observed steps in the plateau glaciers. Thus, it is likely that ice has come and gone repeatedly on Kibo's summit plateau, throughout the Holocene. Such a cyclicity is supported by lake-derived proxy records.
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