Articles | Volume 19, issue 23
https://doi.org/10.5194/bg-19-5357-2022
https://doi.org/10.5194/bg-19-5357-2022
Research article
 | 
30 Nov 2022
Research article |  | 30 Nov 2022

A Holocene temperature (brGDGT) record from Garba Guracha, a high-altitude lake in Ethiopia

Lucas Bittner, Cindy De Jonge, Graciela Gil-Romera, Henry F. Lamb, James M. Russell, and Michael Zech

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Latest update: 23 Nov 2024
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Short summary
With regard to global warming, an understanding of past temperature changes is becoming increasingly important. Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are membrane lipids used globally to reconstruct lake water temperatures. In the Bale Mountains lakes, we find a unique composition of brGDGT isomers. We present a modified local calibration and a new high-altitude temperature reconstruction from the Horn of Africa spanning the last 12.5 kyr.
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