Abstract
The distribution of isoprenoid and branched glycerol dialkyl glycerol tetraether (GDGT) lipids was
studied in the sedimentary record of Lake Challa, a permanently stratified, partly anoxic crater lake on
the southeastern slope of Mt. Kilimanjaro (Kenya/Tanzania), to examine if the GDGTs could be used to
reconstruct past variation in regional temperature. The study
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