Investigating the use of paired Uk'37 and TEX86 measurements to reconstruct past sea surface and subsurface (thermocline) temperatures
IS Castaneda, B Urann, V Phu - AGU Fall Meeting Abstracts, 2013 - ui.adsabs.harvard.edu
Two organic geochemical temperature proxies widely applied to marine sediments are the
Uk'37 Index, based on long-chain alkenones produced by haptophyte algae, and TEX86,
based on isoprenoid glycerol dialkyl glycerol tetraethers (GDGTs), produced by
Thaumarchaeota. At some locations, temperature reconstructions based on Uk'37 and
TEX86 are in agreement within the calibration errors of each proxy, while at other sites
absolute Uk'37 and TEX86 reconstructed temperatures differ but both proxies reveal similar …
Uk'37 Index, based on long-chain alkenones produced by haptophyte algae, and TEX86,
based on isoprenoid glycerol dialkyl glycerol tetraethers (GDGTs), produced by
Thaumarchaeota. At some locations, temperature reconstructions based on Uk'37 and
TEX86 are in agreement within the calibration errors of each proxy, while at other sites
absolute Uk'37 and TEX86 reconstructed temperatures differ but both proxies reveal similar …
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