Paleontologists used to think that dino skin impressions required rapid burial, soon after death, to be preserved. But now we know there’s not a single pathway to exceptional preservation, and desiccation often plays a role. Look at this chunk of hadrosaur tail, so dried the skin shrunk to bone. 🧪

This was such a glorious day that I think I need to post two batches of four. Feb. 10th, 2016 #Iceland #Esja #Outdoors #Landscape #Photography #OTD

George Rossman, Caltech professor of mineralogy, emeritus, passed away on February 6, 2026. He was 81. The unifying theme of his research career was a simple, relatable question: Why do gems and other minerals possess their distinctive colors? He also studied the distribution of water in […]

Passing along the news to the geology community. ⚒️ During my time at Caltech, I could always count on George for friendly greetings, a positive attitude, and odd yet delightful remarks. www.caltech.edu/about/news/c...

Oil geologists, if there are any on here: was the oil at Spindletop Jurassic in age (I know the salt dome it came out of was) or did it seep up from the Paleozoic? I haven't been able to find a clear answer on this, and I'd really like to know!

Elpidite Na₂ZrSi₆O₁₅·3H₂O Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada FOV = 3.50 mm #3991 NFS #MineralMonday

Ophiolites play a significant role in our understanding of orogenic evolution. This study on the Ballantrae Complex in Scotland integrated geochronological and geochemical data to reconstruct the opening of the Iapetus ocean. Full article: geosociety.co/de_Sampaio_et_al Image: Fig 11 from the paper

Maybe a bit late for web timing, but ehy, NEW PAPER ON #fossilfriday!!! I am proud to present you Haolong dongi gen. nov. sp. nov., a new hadrosauroid from the Early Cretaceous of China! The specimen, almost complete, is a juvenile iguanodontian from the Yixian Formation of the Barremian (125 Mya).

As the name suggest, this new dinosaur species exhibits new integumentary structures never seen before in these dinosaurs, a wide array of small, medium and -relatively- large spikes on the body except of the tail.

Founders of modern paleontology, and their contributions to systemic racism, classism and sexism (🧵) Henry Osborn (1857–1935), responsible for naming of Tyrannosaurus & Velociraptor; president of ANHM. Co-founder of the American Eugenics Society. Contributing to books later praised by Hitler.

For #MolluscMonday, a cephalopod engraving from ‘Tableau Encyclopédique et Méthodique des Trois Règnes de la Nature’ published in Paris in 1791. Coin for scale. 🦑 🐙

Actually posting minerals on #mineralmonday this time, with a delicate specimen. Vanadinite on mottramite with some barite. Locality: Midelt Province, Morocco. Personal collection. #minerals #geology #mineralogy

For #MineralMonday I found these staurolite crystals on the bank of the Mississippi River in Minnesota.

For this #MineralMonday , a nice and strange light green Duftite grown in an on Calcite... From Tsumeb !

SO COOL!! Sulphur taking the shape of a pinecone!! It replaced the original material. #MineralMonday #GeoscienceBluesky ⚒️🧪

In Kopenhagen gibt es die Vorschrift, dass alle wichtigen Radwege bei Schneefall bis spätestens 08:00 Uhr morgens geräumt sein müssen, damit die Menschen sicher mit dem Fahrrad zur Arbeit fahren können. So sieht dass dann aus❤️😀

"Lithium Harvest" and others to potentially extract Li from oil field brine in the Williston Basin #NorthDakota ✔️🧪 northdakotamonitor.com/2026/02/03/o...

Many are relieved that the cuts have been prevented – the Association of American Universities, which represents leading US research universities, among them.

Spotted a sweet little (2-3mm long) double-terminated quartz crystal while sorting matrix for micros recently.

New paper alert! I have always wanted to work in old rocks and my Indian colleagues, especially my good friend Biraja, made that possible! www.sciencedirect.com/science/arti...

As seen in Uptown neighborhood of #Minneapolis (Charles Schultz was born in Mpls)

in ohio aviation museum theft, though, i did always think this one was pretty good www.npr.org/sections/the...

A Lithospheric Drip Triggered Green and Colorado River Integration 🧪⚒️ agupubs.onlinelibrary.wiley.com/doi/10.1029/...

🌊 Scientific expedition confirms vast freshwater reserve beneath ocean floor IODP EXP 5O1 www.independent.co.uk/news/science...

(Long) Before mobile phones: hand drawn PPL and XPL views of porphyritic dolerite from Ben Hiant, Ardnamurchan, Scotland. From my undergraduate mapping report. #ThinSectionThursday 🧪⚒️🌋

Today's photos were taken in 2017 (like yesterday's) - that's me in the 2nd one but my friend Reynir Þór in the others. Feb 5th, 2017. It had obviously snowed overnight. #Iceland #Esja #Outdoors #Landscape #Photography #OTD

"Better late than never" I hope - Feb. 4th, 2017 #Iceland #Esja #Outdoors #Landscape #Photography

Hand sample and thin section of a pillow rind and interior from Palaeogene lavas of eastern Baffin island. The solidifying melt continued to exsolve gas bubbles, trapped in the pillow interior by the rind. #ThinSectionThursday #baffinisland #basalt #geology

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AAUP President Todd Wolfson issued the following statement in response to Oklahoma Governor Kevin Stitt's Executive Order issued today immediately eliminating academic tenure at the state’s public regional universities and community colleges.

I'm not sure what to make of it, but every Somali I represent in immigration court currently (8 of them) have today had their hearings cancelled and their judges reassigned. They're now all assigned to a video judge from Louisiana and scheduled for court hearing in one month. 🧵

Badlands National Park, 2021 #CameraObscura #PhotographersUnited #BadlandsNationalPark #landscapephotography

I’m on the scene at Franklin and 1st. A convoy of about a couple dozen ICE/HSI agents broke the entryway into an apartment building at 6am. No warrant presented. Less than 24 hours ago, Tom Homan announced the end of large convoys in Minnesota… Bullshit.

quick, someone help, we've got a vegetable situation

February 5, 1770, birthday of French naturalist & mineralogist Alexandre Brongniart. Together with Cuvier he published some of the first stratigraphic sections & geological maps in 1808, showing the geological layers of the basin of Paris ...

Someone made an actually-organized version of this!!

2026 Tucson Mineral Symposium of the Friends of #Mineralogy National, in conjunction with the Mineralogical Society of America and the Tucson Gem & Mineral Society, February 14. Remote attendance is possible! 🧪⚒️ 💎 www.friendsofmineralogy.org/symposia/202...

Great story on the development of Laila Edwards, Team USA and Olympic hockey player www.espn.com/olympics/sto...

Most of the footage you see from ICE observers in Minnesota comes from the core cities of Minneapolis and St. Paul. I talked to observers in the northern suburbs, who say they're taking on the same mission in very different conditions. (1) share.google/ei9giIFLsuEJ...

Today we submitted paleo paper with 6 UA co-authors. Its -10 to -30Cº in Kyiv in the last week. Most of my colleagues does not have heating or electricity due to russian attempts to freeze Ukraine into surrender. Most of the don't sleep that well due to air raids. Still... we finished the paper 🦖⚒️

Striking essay on letting artists and scholars and scientists do what they will. Great things happen. Written 90 years ago, when Germany and Italy forced scholars out, we took them in. And America later thrived — with technology and culture and, unfortunately, weapons of war. Let curiosity reign.

ICE is active in south Minneapolis today- Multiple cars cruising around East Phillips, Midtown Phillips. Meanwhile, signal is having issues, so folks should be outside! See ICE? Form a crowd and get loud. Let neighbors know if ICE is nearby by making noise.

#FossilFriday 🧪⚒️

2016 ➡️ 2026 Museum displays aren’t something we usually think about, but the supports beneath fossils and artifacts are essential. 10 years ago, this mount was created for this ~5400 yr old steppe bison skull by Restoration and Reproduction Specialist, Gisli. Read on to learn how he created it 👇

Many people have wondered why the Chien-Shiung Wu never won the Nobel Prize for Physics. New findings from the Nobel archives, exclusively revealed in Physics World, show she was nominated 23 times by 18 different physicists - and yet was still left empty-handed. 🧪⚛️ physicsworld.com/a/twenty-thr...

Up at Silverwood Park in St Anthony, MN, they built an ice carousel. Drill a hole in the ice, put in an outboard motor, cut the ice in a big circle, fire up the outboard, ice carousel. People do fun weird shit outside in Minnesota all winter long. Park was packed. It’s delightful here.

🚨Job Alert! 🚨 Professorship (W 2) for #Petrology at #Geosciences, Uni Potsdam. 🧪⚒️ www.uni-potsdam.de/fileadmin/pr...

CANNIBALISM OF AN ADULT TYRANNOSAUR BY A JUVENILE: Our new study on a Badlands Dinosaur Museum fossil reveals dinosaur cannibalism where a juvenile tyrannosaur feasted on the carcass of a dead adult! 3D reconstructions supervision Yu Xin, designer Shen Li, sculptor Liang Junwei /1