A view of a roadside outcrop displaying interbedded greenish mudstones and fossiliferous grainstones, packstones, and wackestones.
roadside outcrops of carboniferous limestone and greenish mudstone, laid back in three benches. Some faulting present, also present, some interesting depositional geometries.
Several falls ago, we field-tripped out to Kentucky with students to see these beautiful outcrops of Carboniferous Fort Payne. Here are two perspectives taken with a drone.
Too bad these are ~ 6 hr drive from campus... โ๏ธ
29.10.2025 14:47 โ ๐ 5 ๐ 0 ๐ฌ 0 ๐ 1
Yep, lots of rounded clasts! Iโve never seen the insides of a drumlin, neat photos.
15.10.2025 01:30 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0
Oh cool, thatโs surprising, though Iโm not around much till these days. Maybe some outwash processes or multi cycle clasts, or just ice transport?
14.10.2025 18:06 โ ๐ 2 ๐ 0 ๐ฌ 2 ๐ 0
Tiktaalik fossil and derpy reconstruction
Enormous gypsum crystals from Mexico
Bad taxidermied cat
Metamorphic rock from the Jack Hills, Australia, source of Earths oldest minerals, zircons ~4.4 billion years old.
Some goodies from a trip to the HMNH.
12.10.2025 20:45 โ ๐ 6 ๐ 2 ๐ฌ 0 ๐ 0
2015-2024
๐๐น
bsky.app/profile/kosm...
02.10.2025 11:21 โ ๐ 97 ๐ 33 ๐ฌ 1 ๐ 3
Mmmm. Bisque.
21.09.2025 22:12 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0
Update on my electrification project:
New heat pump installed! So looking forward to burning less natural gas this winter.
19.09.2025 16:49 โ ๐ 2 ๐ 0 ๐ฌ 0 ๐ 0
Came across another picture of my slightly younger self doing fieldwork, somewhere Wild and Scenic, New Mexico. Ca. 2012
โ๏ธ
18.09.2025 14:46 โ ๐ 4 ๐ 0 ๐ฌ 0 ๐ 0
Me standing in the foreground of a cliff exposing Plio-Pleistocene-aged alluvium displaying large-scale (approx. 10-12 meter) cross-bed sets.
A favorite picture of mine, taken by none other than @clasticdetritus.bsky.social
in Panamint Valley, CA, ca. 2014ish โ๏ธ
17.09.2025 17:54 โ ๐ 7 ๐ 0 ๐ฌ 1 ๐ 0
Spiral shaped fossil, potentially an infilling of a small gastropod mollusk shell.
Looking at sands from the subsurface coastal plain, and you just never know what youโll see.
In related news, I just learned the term โprotoconchโ or an embryonic snail shell. ๐
โ๏ธ
16.09.2025 20:07 โ ๐ 5 ๐ 0 ๐ฌ 0 ๐ 0
Hallelujah - itโs finally payday after a very long summer.
28.08.2025 16:45 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0
Scuppernongs.
Thatโs the skeet.
15.08.2025 16:52 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0
If anyone is interested in going to grad school in paleo, I run a workshop series that will walk you through the process. Itโs through the Society of Vertebrate Paleontology and itโs free! DM me if interested.
11.08.2025 02:38 โ ๐ 9 ๐ 6 ๐ฌ 0 ๐ 0
Hey Cam, is this location accessible to others? Would you mind sharing the location with me?
11.08.2025 19:14 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0
Iโm 45 now and recently rekindled a life-long passion for skateboarding. Most Saturday mornings I meet up with other middle aged skaters, some academics, and have some fun while getting exercise. One thing that constantly surprises me is how much things hurt when youโre old.
08.08.2025 20:49 โ ๐ 5 ๐ 0 ๐ฌ 0 ๐ 0
Marcretions โข๏ธ
07.08.2025 04:28 โ ๐ 2 ๐ 0 ๐ฌ 0 ๐ 0
Cemented granules/pebbles or concretion/precipitate? ๐ค
06.08.2025 22:48 โ ๐ 1 ๐ 0 ๐ฌ 1 ๐ 0
Let the conjecture commence
06.08.2025 22:43 โ ๐ 3 ๐ 0 ๐ฌ 0 ๐ 0
My new hero is Detective Cupp.
01.08.2025 22:31 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0
NOAA has released their official animation of the propagation of this week's tsunami. It took almost exactly one day to reach Antarctica and was reported at 0.6 feet high.
31.07.2025 16:29 โ ๐ 92 ๐ 34 ๐ฌ 1 ๐ 7
Stupendously dumb.
01.08.2025 01:23 โ ๐ 2 ๐ 0 ๐ฌ 0 ๐ 0
๐ during earthquakes people are often injured or killed due to falling debris as they exit buildings
โ๏ธ
30.07.2025 03:43 โ ๐ 4 ๐ 2 ๐ฌ 0 ๐ 0
Aww, some unlucky Archean microbe left their car keys
28.07.2025 13:57 โ ๐ 12 ๐ 0 ๐ฌ 1 ๐ 0
The absolute last place on earth I wish to frolick naked is probably Talladega Natl Forest, Alabama.
My clothes-on experiences in the region (Cheaha) have all included bugs literally biting me to death.
22.07.2025 01:50 โ ๐ 2 ๐ 0 ๐ฌ 0 ๐ 0
Nice jargon! Iโm here for it! This was in Maine in a relatively shallow lake, like 50ft max, and the fish is likely a redbreast sunfish.
19.07.2025 18:51 โ ๐ 3 ๐ 0 ๐ฌ 1 ๐ 0
Check out this beautiful lake-fish ๐ nest. The fish used its tail to sweep the nest clean, essentially segregating grain sizes; sand piled around the perimeter, gravel in the center, outer margins are fine sands and silty mud. Last night there was a strong wind that modified sands with ๐ ripples โ๏ธ
19.07.2025 16:55 โ ๐ 69 ๐ 12 ๐ฌ 2 ๐ 0
Evidence for bedload deposition on Mars
Why focus on bedload deposition? Because it provides evidence for fluids (air-water) on the ancient Martian surface
A look at the sedimentary rocks on Mars that require flowing fluids. Focuses on bedload transport (of loose sediment) to form crossbeds - recognition of these structures provides clues to the former presence of fluids, particularly water.
www.geological-digressions.com/evidence-for...
โ๏ธ๐งช
16.07.2025 05:08 โ ๐ 46 ๐ 13 ๐ฌ 1 ๐ 0
Wandering and sometimes lost.
Earth scientist, professor, mom, living with disability, animal lover, amateur gardener, advocate for fixing lack of D.E.I. in science and academia. Only my thoughts
Mammal
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A nerd at large. Writer. Musician.
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Earthologist in a Chem Dept. Fargo via St.Paul Minneapolis, U Minn. Immigrant son ๐ฉ๐ช๐ฑ๐น/๐ฎ๐ณ, spouse to ๐ฎ๐ธ. 2x Fulbright #T1D ally โค๏ธChicago. Geology! doktrock.net
Associate Professor of Earth, Environmental, and Planetary Science at Washington University in St. Louis โข Planetary Data System Geosciences Node Director โข Planetary Bastard โข he/him/Sir
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Dinosaur researcher at NHM London. Honorary Prof at Birmingham. PalAss Vice-Pres. Ed-in-Chief of TJSP. Medium pace swing bowler. You were thinking it; I just said it out loud.
Researching and reporting the science and impacts of climate change ๐
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Geophysicist, geologist, crofter, foody, and ocean plastic recycler.
Providing unsolicited (weird?) music suggestions.
Trying to contribute to the open-source movement. Earns money as a freelance consultant spends it with all the rest.
Precambrian geology, sedimentology, planetary sciences. Following politics, geopolitics. Personal account: @jaakkojlaitala.bsky.social ๐ช๐บ๐ซ๐ฎ
Sedimentology, Geomorphology, Geoinformatics, Big Data Ops for Geoscience โ PhD student @ Indiana University. Permanently hanging with my cat Milton. | email: jhgearon@iu.edu
Dinรฉ | Field Geologist | Sedimentologist | Assistant Professor
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Opinions are my own
Sediment, climate change, and impostor syndrome | Science and SFF for the win | Writing for a living and fun | Opinions are my own (or the characters' in my head).
Academic stuff: https://obialik.weebly.com
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Postdoc researching exoplanet biosignatures, Univ. of Arizona | Astrobiologist | Trans Lesbian | Wife | SFF Writer | Lukewarm Ecosocialist | Union Woman | One Half of @asabpod.bsky.social | She/Her| ๐น
www.tessafisher.com
Words and opinions are my own.
Earth sciences - geology - tectonics - earthquakes - fieldwork - teaching - outreach - Vrije Universiteit Amsterdam - aardbeving - vulkanen - Aardwetenschappen
Also active as
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Paleontologist. Science educator (cbu.ca). Curator (capebretonfossilcentre.com). Lover of fiddle, grower of veggies. Posts (mostly!) about geoscience, geoheritage, pedagogy, & Nova Scotia.