Sam Duncanson

PhD candidate @IowaStateU applying geochemistry + sedimentology to study nitrogen through Earth history. @UMNDuluth. Enjoys running, reading, and pesto

[Sam Duncanson @DuncansonSam]

Worried you are starting 2024 without the recommended dose of iron-rich rocks from the Paleoproterozoic? If so, check out our new paper (and my #firstpaper !) on identifying mineralization pathways in the Biwabik Iron Formation! (1/3) 🔬🪨🌊

[Science Cowboy 🦉 @aadityad9]

If you can believe it, this is the same bird a year apart.

We caught this gorgeous male Scarlet Tanager in 2024 and banded him. He flew all the way to South America for the winter and then came right back to Iowa where we caught him again in the same net.

[Emily Murnane @emily_murnane]

How I feel when the Trader Joe’s cashier tells me what I good job I did picking out yummy things

[Sam Duncanson @DuncansonSam]

Nitrogen is an essential element for life on Earth. Interested in its relationship to major evolutionary events in oceans the past ~four billion years? If so, check out a new @Nature review paper my advisor and I chipped in on! https://t.co/vni6mFCdeG @GeologistBen

[Daniel Litt @littmath]

gpt-6 will have the intelligence of someone who decided not to get a PhD

[Ancient Biology @KacarLab]

📢 Woot, woot! Our work is on the cover of Trends Microbiology, June 2024 issue - a special issue dedicated to microbial nitrogen transformation! 🎉🎉

Read the article led by Holly Rucker @hollyr_rucker ➡️ https://t.co/6t9D9gDqi7 
@TrendsMicrobiol @CMB_UWMadison @UWBact

[Emily Hanson @anaerobicemily]

Behind every scientist is a fantasy/sci-fi series they love with their entire heart (LOTR/Star Trek/etc)… mine is the Southern Reach Trilogy by @jeffvandermeer (this tweet is an attempt to get you to READ IT!!!!)

[Sam Duncanson @DuncansonSam]

@sarahhornblende Thanks Sarah!!

[Sam Duncanson @DuncansonSam]

Worried you are starting 2024 without the recommended dose of iron-rich rocks from the Paleoproterozoic? If so, check out our new paper (and my #firstpaper !) on identifying mineralization pathways in the Biwabik Iron Formation! (1/3) 🔬🪨🌊

[Sam Duncanson @DuncansonSam]

Much thanks to the awesome coauthors who made this paper happen! link here--> 📷
https://t.co/WZhljgdunW

[Sam Duncanson @DuncansonSam]

We found that sediment horizons cemented by silica contain well-preserved diagenetic mineral reactions, and that we can use these reactions to identify the earliest-forming minerals in these enigmatic, ~1.9 billion year-old rocks.

[alexandra @bigmoodenergy]

critical support for the javelina as they lead the war on arizona golf courses

[Sam Duncanson @DuncansonSam]

Vote #zircon! A lone timelord can be seen center-stage in this hastily-taken image of a sandstone. Under the petrographic microscope, they appear as colorful, high-relief crystals in cross-polarized light. A great tool for providing max depositional ages in sedimentary rocks!

[Mineral Cup #MinCup @MineralCup]

It's the #MinCup23 FINAL ROUND!!

32 minerals have battled for your hearts, but only one can claim the Championship. Will it be #Zircon, the eternal timekeeper, or #Perovskite, the cubical rain on brown dwarf stars?

Vote: https://t.co/JmLTLHqwjY

Results: https://t.co/JmLTLHqwjY

[Alisa Bokulich ➡️ 🦋🌤️ @AlisaBokulich]

@MineralCup As a philosopher of geologic time I have to go #TeamZircon! Vote for the oldest bits of Earth that still exist today-the resilient time capsules that allow us to reconstruct ~ 4.37/4.53 billion years of Earth's history!
#MinCup23
https://t.co/UApyKsXcTb

https://t.co/nZLBHbGE7L

[ISU Archives @ISU_Archives]

With the new Oppenheimer movie having been recently released, we figured sharing the story again of when he visited @IowaStateU as part of a Physic's Dept Carlson Lecture Series in 1954 would be appropriate https://t.co/W77AehrPb8

[Dr Catherine Russell @SeddyRocks]

I'm ✨INCREDIBLY✨ excited to share our new paper with you!!

📢"#PlasticPollution in riverbeds fundamentally affects natural sand transport processes"
https://t.co/9l0dHNVlEi

#FlumeFriday #River @CommsEarth @nature @IceMeanders @bedform

Here are our key findings: 🧵1/5

[Audrey Huff @audreyehuff]

It's published!! It's here!! My first first-author paper is out for your viewing pleasure 🎉 🎉 🎉

We found that quagga mussel tissue CNP varies (a lot!) in the upper Great Lakes & impacts mussel excretion rates & stoichiometry 🌊🦪

Check it out!! https://t.co/EmAjIgZGlb

[UMN Alumni Chair @UMNAlumniChair]

Excited for Pat Duncanson to become the 87th Chair of the University of Minnesota Alumni Association Board. Congratulations Pat!!

[Audubon Society @audubonsociety]

In Minnesota, the southern edge of a boreal forest ecosystem could shift over the Canada border this century. Local photographers, scientists, and land managers are grappling with what that means. #BirdsTellUs https://t.co/1jaIhDdAPU

[Keifer @DannyVegito]

all AI art looks like this to me