Pearson Lab

#Archaea our N mari have a manor! 🤣

Article: The first pulse of the Permian-Triassic mass extinction was driven by intense weathering, suppressing CO2 while food web collapse and prolonged warming drove the second pulse @Jiaheng_SHEN @PearsonGroupEPS @ChemClimatology @yhsailing nature.com/articles/s4156…

So happy today for #RobinWallKimmerer, 2022 MacArthur Fellow, whose book Braiding Sweetgrass is a masterpiece!

A surfeit of good times at the GRC #organicgeochemistrygrc2022! So great to see many @PearsonGroupEPS alumni and friends; apologies to @david_naafs, he should be in the photo too.

2Me hopanoids linked to amplification of the aerobic recycling arms of the marine nitrogen cycle - Congratulations, Felix Elling @lipidorama, Jordon Hemingway @FluvialSeds, and rest of the group! www-pnas-org.ezp-prod1.hul.harvard.edu/content/early/…

Some recordings destined to top the charts... These Harvard undergrads can Model youtu.be/NA_46hB4yt4 ("Wobble") and are Geolicious youtu.be/DyY_gW7yGt4 ("Fergalicious"). Watch all of SCHOOL OF ROCKS here: youtube.com/playlist?list=…

Brexit Cup, 2016 - the first game in many years not to result in any hospitalizations! #50YrsOrgGeochemGRC

What does a 9 inch ice core sound like when dropped down a 450 foot hole? Like this! Credit to @peter_neff for the idea and @Scripps_Polar, @sciencejenna, @GeosciencesPU, @US_IceDrilling, and @paleosurface for the execution!

@david_naafs We have some N data, just not nearly enough to do any stats. Maybe in a few more years.

@PearsonGroupEPS I remember Dave Hodell ran a similar lab in Florida back in the days (but with d15N if I remember correctly). It might be an idea to combine the data!

Follow-up: Here are all the data we have collected over the years on geographic and dietary influence on human d13C values (keratin). EPS 187 class project.

So much in our diets is made of corn, except, apparently, candy corn...

Felix Ellings new paper constrains the magnitude of the PETM CIE to a narrow range, ca. -3.5 to -4.0 permil. rdcu.be/bT2KC

Congratulations to Elise on her latest paper! (I almost typoed “last”!😱) authors.elsevier.com/c/1ZmGR3p4ZGN7…

#GDGTs, #biomarkers Pleased to share our two part series on archaeal C-13 and its apparent sensitivity to growth conditions. authors.elsevier.com/c/1ZW5T3p4ZGMh…

#GDGTs, #biomarkers Pleased to share our two part series on archaeal C-13 and its apparent sensitivity to growth conditions. authors.elsevier.com/a/1ZW5T3p4ZGMh…

Created with AppStore.com/KeepCalmCreator #keepcalmandcarryon, @_SPruss_

Thanks @rpancost for the shout-out! Tiny Algae May Have Prompted a Mass Extinction eos.org/articles/tiny-…

New! @Jiaheng_SHEN 's Nature Geoscience article, combining porphyrin 15N data with a sediment database and the COPSE model to explain the C-cycle perturbation leading to Ordovician #MassExtinction. twitter.com/NatureGeosci/s…

Loving our job opposites this morning... A "Lumberjack Model"? Opposite of Bio + Geoscientist. nyti.ms/2vgbqGR via @UpshotNYT

Influence of Carbon Source on the Distribution of C Isotopes in Bacteria. #Goldschmidt2017 (gold2017:abs:2017004748) postersmith.com/poster/share/9…