iiinova — where your digital self keeps evolving

Reposted by Andrew Alden

Tim Dawson @timblor.bsky.social · 03/10/2026

Sunrise to sunrise on the Friends of the Pleistocene trip to Mono Basin.

Sunrise hitting the the eastern Sierras with clouds reflected in the Owens River

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Douwe van Hinsbergen @vanhinsbergen.bsky.social · 02/10/2026

In this new Geology paper, we reconstructed a previously suspected but undocumented plate between Farallon and North America. We recognized the remains in the geology of California and the Caribbean region, and revived the Franciscan Plate into its former glory! #Geology #PlateTectonics

pubs.geoscienceworld.org

Mesozoic ocean plate stratigraphy reveals a Franciscan plate separating Farallon and North America | Geology | GeoScienceWorld

Ocean plate stratigraphy preserved in the Franciscan Complex records the Mesozoic plate tectonic evolution of the North American Cordillera and eastern

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Andrew Alden @geology.bsky.social · 03/10/2026

Looking forward to giving a talk tomorrow to a bunch of friars that ends with a Latin quotation: "Pulchra sunt quae videntur, pulchriora quae sciuntur, longe pulcherrima quae ignorantur"

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Andrew Alden @geology.bsky.social · 02/10/2026

the faster we go the rounder we get?

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Heida Maria Sigurdardottir @heidasigurdar.bsky.social · 01/10/2026

If you don't feel a bit stupid, are you even trying? #science

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Jim Lehane @jazinator.bsky.social · 28/09/2026

Episode 2 of my Geology in Pop Culture video series is now available! This episode we are looking at Taylor Swift’s song “Opalite”. What exactly is opalite and how does it relate to opals as well as the other mineral mentioned in the song, onyx? Link in the comments 👇 #Geology #TaylorSwift #Rocks

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Robert Simmon @rsimmon.bsky.social · 27/09/2026

Sibley Volcanic Regional Preserve cc @geographile.bsky.social

An assortment of volcanic rocks on display.

Inside of an eroded and quarried volcano, with labyrinth.

Fog, path, and microwave transmission tower.

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Andrew Alden @geology.bsky.social · 26/09/2026

Truth. When I wrote for About . com I found myself writing about things even more basic than the "basics."

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Northern California Geological Society @norcalgeolsoc.bsky.social · 26/09/2026

Congratulations to Dr. Dawn Sumner, a new AGU Fellow! She was our speaker in September 2000 and had a full-page summary in the October newsletter, preserved on our website. ncgeolsoc.org/past-meeting...

ncgeolsoc.org

Past Meetings 2000–01 to 2009–10

Past Meetings, 2000–01 to 2009–10 Click the talk title to see the talk abstract and speaker’s biography (PDF). June 28, 2000Keil Albert, Geoconsultants Inc. ― Provenance of the Irvington Grav…

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Andrew Alden @geology.bsky.social · 26/09/2026

Does anyone know where the stone for Trump's new helipad came from?

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Andrew Alden @geology.bsky.social · 25/09/2026

Never use spellcheck while you're writing; run it later when you can pay full attention.

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Andrew Alden @geology.bsky.social · 24/09/2026

This would give me the same uncanny sensation I feel "riding" an earthquake recording on an actuator platform. Well done.

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Robert Simmon @rsimmon.bsky.social · 24/09/2026

With multiple satellites, the FireSat constellation will be able to detect fires shortly after ignition, and eventually monitor their progress over intervals as short as twenty minutes. This series of images shows the Big Grass fire over 48 hours, as it swept over the grassland of southwestern Idaho

Time series of satellite observations of the Big Grass fire in midwave infrared (top, burgundy) and thermal infrared (bottom, orange). The fire smouldered over a wide area on the first night, burned intensely on a narrow front 12 hours later, and slowly subsided over the course of the next 3 observations.

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Robert Simmon @rsimmon.bsky.social · 23/09/2026

Happy fall (or spring, depending)!

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Seth Tisue @tisue.net · 20/09/2026

hello Oakland

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Andrej Spiridonov @andrejpaleo.bsky.social · 18/09/2026

Thank you for sharing this. Apparently the 3rd Edition of the Principles of Paleontology is freely downloadable. 🧪⚒️ #Geology #EvoBio #Paleobio

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Duncan McIlroy @dmcediacaran.bsky.social · 18/09/2026

For #FossilFriday this week how about a completely new #Ediacaran? This beauty was discovered by my Masters student Heléna Muirhead-Hunt. It has a calyx not a stem, six stiff, inwardly curved tentacle like arms with pinnules. We should be able to share its name & inferred affinity later today 👀

fossil surface with a bushy fossil with triangle in the might and at least 6 arms with fine lateral pinnules. the base has a large concentric disk. the egg shape is a strain marker showing how it has been retrodeformed

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IdahoLark @idaholark.bsky.social · 17/09/2026

Heaven and Hell. What a beautiful day for a drive up to Heaven’s Gate Overlook in the Hells Canyon National Recreation Area. Great views of four states and the Seven Devils Range. #IdahoEscape

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Andrew Alden @geology.bsky.social · 17/09/2026

Is anyone still saying "take him seriously but not literally"?

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David Ho @davidho.bsky.social · 15/09/2026

NSF has reduced the research budget for all atmospheric, ocean, and earth sciences by ~80%. 80%! A lot of us will not be conducting new research or training new students for the foreseeable future.

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Andrew Alden @geology.bsky.social · 15/09/2026

I like minerals that grow big enough form hand specimens; sorry xocolatlite, take your atlatl elsewhere

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Andrew Alden @geology.bsky.social · 15/09/2026

Sorry, the last time in 2026. This is the 4th year I've done them.

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Stuart Atkinson @stuartatkinson.bsky.social · 14/09/2026

Whatever you're doing, please, just stop for a moment to imagine you're kneeling down on the surface of Mars and trailing your gloved fingers through this beautifully coloured grit covering the ground around you... (Curiosity image) NASA/JPL-Caltech/MSSS/fredk/S Atkinson

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Andrew Alden @geology.bsky.social · 14/09/2026

enough of these arbitrary solid-solution variants, I'm voting for an honest mineral: riebeckite.

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Dr Grace S Peng @gspeng.bsky.social · 12/09/2026

This 🧵 is about AI but I saw this in action for pre-construction geologists on sloped lots. People shop consultants until they get the answer that they want

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John Porter @maletero.bsky.social · 11/09/2026

Kilauea is set to start its next episode of impressive fountaining at any point now. Right now, the north vent is bubbling up, releasing lava onto a relatively flat surface, leading to some really cool lava buildup. www.youtube.com/watch?v=HggW...

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Andrew Alden @geology.bsky.social · 11/09/2026

Calcite may seem ordinary, omnipresent, but don't overlook its key role in Earth history and the Earth system--that's why calcite is everywhere.

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Callan Bentley @callanbentley.bsky.social · 10/09/2026

New video! Wherein @rsimmon.bsky.social & I talk through satellite imaging, application to the construction in Big Bend, and how any of us can use the free Copernicus browser to see what's happening on our planet. youtu.be/2nAnJWGvUyI ⚒️

youtu.be

Rob Simmon interview: Big Bend, satellite data, and fact-checking official claims

YouTube video by Callan Bentley

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Ryan J Hollister @phaneritic.bsky.social · 09/09/2026

Fair warning! The listings for my latest batch of 3D-Printed scale model volcano tissue box covers will go live tomorrow morning (Thursday) around 8am PDT. I think I counted 27 are available this time. A decent variety from which to choose! Will pack this weekend and ship Mon. phaneritic.etsy.com

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VolcanoDiscovery @volcano.link · 06/09/2026

Volcanic Ash Advisory (#VAAC) for #Krakatau #volcano (Sunda Strait, Indonesia) Explosive activity continues. Volcanic Ash Advisory Center (#VAAC) #Darwin warned about a volcanic ash plume that rose up to estimated 50000 ft (15200 m) altitude or flight level 500 .

volcanodiscovery.com

Krakatau Volcanic Ash Advisory: ash plume to 50,000 ft (15,200 m) as of Sep 6, 00:10 UTC

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ESA Space Science @science.esa.int · 03/09/2026

A happy goodbye is still a goodbye 🥹 Mission accomplished, MTM! 🫡 Thank you for the ride! Thanks to its solar-powered electric thrusters, MTM carried ESA's Bepi and JAXA's Mio to Mercury on the power equivalent of 250 ants! 🐜🐜🐜 🔭 🧪 #planetsci 1/3

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Andrew Alden @geology.bsky.social · 03/09/2026

As is typical, the newspaper story is good (the Chronicle's Jack Lee does good work) but the headlines are worse and the TV derivatives are worse still.

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