Nutrient stress alters GDGT distributions in marine sediments, resulting in elevated TEX86 ${\text{TEX}}_{86}$ values beyond those related to thermal effects Paleoclimate case studies from the Ar...

Nutrient stress alters GDGT distributions in marine sediments, resulting in elevated TEX86 ${\text{TEX}}_{86}$ values beyond those related to thermal effects Paleoclimate case studies from the Ar...

The marine sedimentary biomarker pool receives membrane lipids from multiple archaeal groups and sources living throughout the water column and sediments, as well as bacterial lipids from marine and terrestrial sources. Understanding the contribution of these different inputs is essential for interpreting TEX86 paleotemperatures and other lipid-based paleoclimate proxies. Credit: Elling et al. [2026], Figure 13

A new review article summarizes our knowledge of how microbial lipids archived in marine sediments record ancient ocean temperatures and outlines challenges and next steps for the TEX86 proxy.

Abstract. Marine glycerol dialkyl glycerol tetraethers (GDGTs) are used in various proxies (such as TEX86) to reconstruct past ocean temperatures. Over 20 years of improvements in GDGT sample processi...

RI-OH′ not only responds to Dansgaard-Oeschger and Heinrich events but also better resembles UK′37 than TEX86 RI-OH′ gives realistic sea surface temperatures and latitudinal gradients consistent ...

Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...