Abstract
The newly introduced temperature proxy, the tetraether index of archaeal lipids with 86 carbon atoms
(TEX86), is based on the number of cyclopentane moieties in the glycerol dialkyl glycerol tetraether (GDGT)
lipids of marine Crenarchaeota. The composition of sedimentary GDGTs used for TEX86 paleothermometry is
thought to reflect sea surface temperature (SST). However,
... read more