The Mississippi River at Grand Rapids, Minnesota

“Leave on”

Help UIC transcribe old building permits! Don't play games on your phone while you binge podcasts... transcribe Book 39 West, 1926-1927 instead. (maybe not on your phone). While away the hours with inspectors Bomark, Slattery, Bateson and the gang. Here's how: researchguides.uic.edu/CBP/transcribe

Inventory reduction: have you ever wanted a pallasite? Big 63 gram slice of the Admire palate from Kansas with huge olivine crystals. Only a few parts are translucent but it’s a nice slice. Yours for $600.

IMA Webinar: “Native Copper in the Munich Subsurface: A Natural Laboratory for Unusual Redox Chemistry under Low-Temperature, Alkaline Conditions” Dr. Donjá Aßbichler, LMU München. ⚒️🧪 21 May 2026; 16:00 CEST Link: zoom.us/j/97637048457 (Dr. Jakub Ciazela, Inst Geol Sci, Polish Acad of Sciences)

Would any of the geodesists on here like to have a crack at explaining the diagram in this thread? How to weigh the earth #geodesy

What a way to witness it. I found interesting the placard with info on their experience at Johnston Ridge Observatory - picture and transcription of placard here:

"Drought pushing many Nebraska wheat farmers to abandon their acres this year" "“We are staring at what I believe may be the biggest winter wheat crop disaster the country has seen in decades,” Eric Hunt said in NU Extension’s latest drought update." (h/t Denise G)

Happy to announce our new MSc in Earth System Dynamics and Evolution beginning this Oct 2026 at FAU Germany. We provide interdisciplinary training in Earth systems and science diplomacy 🌍🧪📈👩‍💻 📝 Funding provided by the Elite Network of Bavaria. Application deadline: July 15. More info below👇

In the 1860s, John Cassell started selling (and trademarked the name) "Cazoline Oil," a cleaner burning lamp oil derived from petroleum. It was so popular, others started selling imitations called Casaline or Gazoline. Cassell went to law against one John Boyd for selling his own "Cazoline." 2/6

Rock people! Permanent job alert! Guardian of the Rock Collection at Ruhr Uni Bochum, Germany jobs.ruhr-uni-bochum.de/jobposting/6...

Mount Saint Helens erupted on this day 46 years ago. John "Jack" V. Christianson took these photos from Mt. Adams, 54 km to the east, as his friend reacted to the eruption—really, the wholesale collapse of the volcano—at 8:32 am on 18 May 1980. Imagine what this must have been like to witness.

May 17, 1980 Tucked away in the U.S. Geological Survey's Earth Resources Observation and Science archive, these high-resolution aerial survey photographs of Mount St. Helens taken the day before the eruption — part of a systematic photogrammetric mission capturing the mountain's final hours.

Incredible shout-out for the science of paleontology by the dean at the OU commencement ceremony! 🧪🦕⛏️

That's some good schist

If we get a "Super El Niño" this year, here's what the "Year without a Winter," December-February of 1877-78, was like in #Minnesota www.dnr.state.mn.us/climate/jour...

Numerous Wild Fires continue to spread across Northern Minnesota right now. The dry Spring and up to 40 mph winds only adding fuel. Roads have been closed. Homes, resorts, gas stations, & other businesses are being evacuated. Thus far we are safe, but much of our State & National parks are not.

News story on a significant earthquake in Uzbekistan, 50 years ago, May 17, 1976 (Fargo-Moorhead Forum archives). Mentions the Medvedev scale, apparently now the the MSK or MSK-64 scale. Also, the first page of a scientific paper on it, from 1980. ⚒️🧪 #OTD

A6: We were blown away by the Museum of Geology, on the campus of the South Dakota School of Mines & Technology, in Rapid City, SD! This FREE museum features extensive fossil & mineral collections,with a special focus on the region's natural history. Did I mention it was free?! #ParkChat

Read the Alfred T. Anderson Anthology, commemorating the end of The Journal of Geology. Revisit some of the most impactful and widely referenced papers in the journal’s history, now freely accessible: https://ow.ly/QBNi50YZ7Fw

I ORDER MY COFFEE BLACK. NO SUGAR. NO MILK. NO WATER. NO CUP. THEY HAND ME THE BEANS. I EAT THEM IN THE PARKING LOT LIKE A HORSE. THE BARISTAS HAVE STOPPED CHARGING ME. I HAVE NOT SLEPT SINCE TUESDAY. I CAN HEAR THE WIFI

Happy to learn our seed grant proposal to bioleach REEs from North Dakota lignite is accepted. ND State / U of ND / ND Geological Survey (NDGS) collab. Great way to start the summer! ⚒️🧪

Going to kick off #FossilFriday with one of the weirdos from my old Problematica lab. 🧪⚒️ This is Receptaculites. What, precisely, Receptaculites was remains uncertain, but they were relatively shallow, warm water marine somethings ranging from the Ordovician to the Permian, dying out at the P/Tr.

✨Open PhD student position✨ I'm looking for a PhD student in biogeochemical modelling of past abrupt changes. The PhD candidate will explore interactions of rapid ocean circulation changes with marine biogeochemistry during past abrupt climate change. Apply by 31 May. jobs.unibe.ch/job-vacancie...

Still thinking about those delicious Steak Frites at Little Bad Wolf in Andersonville from over a month ago - highly recommended #Chicago

Friday Fantastic. This morning's twilight in Chicago's River North at the Spirit of Progress.

In the event of a fire, exit the building immediately. Do not stop to look at the MASSIVELY INTERESTING 350 MILLION YEAR OLD CRINOID FOSSILS, LIKE STACKS OF POLO MINTS, SLICED IN EVERY POSSIBLE ORIENTATION, WHICH LINE THE ENTIRE STAIRWELL. #FossilFriday 🌏⚒⭐🔬🧪

So I finally set up a more sturdy bookshelf, and now I have a couple more pieces of ore to display. I need to remount the largest piece so I'll post that another time. First specimen: Uranocircite, a cousin to Autunite. This piece came from Brazil.

"Chicago Sees Production Boom on Wave of Illinois Incentives" variety.com/2026/film/fo...

“Mass protests in Argentina decry Milei’s funding cuts to prized public universities” 5/12/26… 1/

My next #Geology of the #NationalParks in Pictures is for Pipestone NM. DYK the Pipestone layer, known as Catlinite, is a unique combination of clay minerals devoid of quartz, resulting in a dense but fingernail soft rock … More Info: www.thegeologypage.com/2026/04/geol...

My next #Geology of the #NationalParks is for Effigy Mounds NM, located on the Lower Ordovician Prairie du Chien Group, a resistant dolomite/sandstone formation that, due to its erosion resistance, forms a flood safe plateau high above the Mississippi River. www.thegeologypage.com/2026/05/geol...

Big career update is now official: on July 1st I will move into the State Geologist role and take over leadership of the North Dakota Geological Survey. I will continue to work with the NDGS Paleo team, though in a reduced capacity. This means we will be hiring a new Paleontology Section Manager!

The Division of Earth Sciences postdoc fellowship solicitation "has been archived and will not have a competition this fall,” an NSF spokesperson confirmed to Eos. eos.org/research-and...

In fisheries models, natural mortality (M) is often set to 0.2 per year. A detailed derivation of this result was provided by John Pope in 1975, see below:

May 14, 1915, Lassen Peak in California erupts violently - it was the last volcanic eruption in the continental U.S. before Mount St. Helens in 1980 🌋

Silica is *higher* risk for stratospheric warming than sulfate. It may be less reactive (I would say this isn't known yet) but the stratospheric warming risk should be a dealbreaker.

Meta glasses are absolute game changers for the blind community — this isn’t special pleading — they are completely revolutionary and though expensive they are in relative reasonable reach in a way a lot of disability tech is not It is expensive being blind

With data from the @nytimes.com API, I analyzed all national+local coverage since 2000—224,000 articles— to see which topics in each state get covered out of proportion to the rest of the country. A portrait of how the paper of record sees America, one state per tweet, alphabetical. 👇

In case you wondered, this is ongoing in Minneapolis. They are still stealing our neighbors. Just because the rest of the country decided to move on doesn't mean it stopped.

Geologists are good while physicists and chemists are evil. Seems reasonable to me.

i love you grain weevil

Stable Isotope researchers of all varieties - come to Bristol in June!! The 17th meeting of the Stable Isotope Mass Spectrometry Users Group (SIMSUG) will take place 15th-16th June 2026 at the School of Chemistry, University of Bristol. Register at simsug2026.carrd.co

A rather large crystal of gypsum ⚒️

I've approached multiple people without any responses (it's that time of year, I think), so I'm gonna try launching this into the bluesky. I need someone who can speak with me about Mercury geology. This probably means someone who worked on MESSENGER? But please share and thank you for any help! 🧪🔭

I think it's wild that we may be a generation away from orange juice becoming an ultra luxury good, almost entirely through a cavalcade of self-inflicted error slate.com/business/202...

May 12, 1835, Charles Darwin visits the Panulcillo Copper Mine in North Chile - where a large magmatic intrusion formed a contact-metamorphic rim rich in copper minerals ⚒️

Nobel laureate Dorothy Hodgkin was born 116 years ago today. The legend among legends in crystallography, she cracked the 27 atom structure of penicillin, and then the 181 atom structure of vitamin B12, and THEN the 788 atom structure of insulin. tinyurl.com/yketyrn5 #WomenInSTEM #ChemSky #BioSky

New submarine #volcanic #eruption in the Central Bismarck Sea (Papua New Guinea) at ~3ºS, 148ºE. Previous activity reported in this region in 1972. Plume breached ocean surface on May 9 at ~01:00 UTC; w/ small pumice raft. Animation shows MODIS/VIIRS imagery & thermal IR hotspots from May 9-12.