Our GDGT Cookbook paper is out now in Biogeosciences! @egubg.bsky.social

Thx Peter Bijl and @kasiasliwinska.bsky.social in spearheading on this. Hope it will help people who study #TEX86 for a bit!

Proudly present Figs 1 and 4 that I made for the paper 😎

Great pleasure working with y'all!

PNAS 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...

Our findings provide valuable insights into the evolution of marine #AOA and have important implications on 1) marine carbon and nitrogen cycles in past oceans and 2) #TEX86 temperature reconstructions!!

Learn more from our paper at doi.org/10.1073/pnas....

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2 patterns to look for here:

1) Samples with #TEX86 should show low GDGT-2/-3 (more GDGT-3 at higher T). This is our expected #thermal pattern.

2) The opposite occurs with core-top sediments. We called this #nonthermal pattern.

We investigated #GDGTs from 7 archives!!

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Let's start with #GDGTs & #TEX86.

#Archaea adjust the internal structures of their membrane lipids (aka #GDGT) to thrive in a wide range of temp. Marine archaea make #GDGT w/ 0-4 cyclopentyl rings. Hotter?! Let's add more rings! This is the basis of #TEX86 #SST proxy.

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My 1st first-authored paper with incredible coauthors (Yige Zhang, Ann Pearson, Brian P. Hedlund, Shuang Zhang) was published in @pnas.org back in 2022 (doi.org/10.1073/pnas...).

We show that #GDGTs are much more than a #TEX86 temperature proxy! Curious? Here we go!

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