Face-off between two alluvial fans, Yuzhny Island, Novaya Zemlya, Russia. (image source: Apple Maps; caption by Zoltán Sylvester) #GeologyRocks

Woah, "Palmen op de Noordpool" is zo'n leuk en leerzaam boek! 🙏 De manier om kinderen (en volwassenen) op een toegankelijke manier bij te brengen hoe belangrijk een gezonde, leefbare aarde is en om ze te interesseren voor STEM. Er zijn zoveel gave jeugdboeken! Nooit te laat om zo'n boek te lezen.

A bit far fetched sometimes for students that only studied 4 weeks, but why not explain joints with plumose structures and hackle fringes, or shale pencil shapes (S0/S1) to distinguish between limbs and hinge line (near rectangular)

Pretty lucky with the weather on our fieldwork with 1st years in the #Ardennes. Always fun to show them how to gather information from outcrops, building stratigraphy, understanding folding and linking that to geomorphology. #teaching #aardwetenschappen @vuamsterdam.bsky.social

On our way to the #Ardennes, we stop in Limburg (southern Netherlands) to study the gravel of the Meuse river, some of the terraces and the grainstones of the #Maastrichtian below. #Aardwetenschappen @vuamsterdam.bsky.social

Mesmerizing Magma Movement Microseismicity 👇⚒️

Wat bedoelen ze nou? Recht door. Of niet?

Kleine correctie

Wel sneu voor de gewone fascisten die vreedzame tribunalen en deportaties willen dat zij door een klein groepje relschoppers nu ook in een kwaad daglicht komen te staan.

4 jaar geleden: #vulkaanuitbarsting op La Palma. Veel van geleerd!

⚒️ 🧪 Another big addition to the remarkable M8.8 earthquake sequence offshore Kamchatka: a M7.8 - the biggest aftershock so far. With foreshocks, aftershocks, aftershocks of foreshocks, and foreshocks of aftershocks, it's hard to keep these earthquakes straight! Read more about what's going on:

Oh @sylvanasimons.bsky.social, the woman you are.

I just find everything feels a bit better when I watch this.

Uit cijfers blijkt: PVV wel degelijk weinig aanwezig bij debatten https://www.nrc.nl/nieuws/2025/09/17/uit-cijfers-blijkt-pvv-wel-degelijk-weinig-aanwezig-bij-debatten-a4906427

With the extinction of dinosaurs, dense, closed-canopy forests could proliferate, leading to shifts in fluvial structure and accumulation of organics. This represented a profound change in the landscape, illustrated here by the incomparable Julius Csotonyi.

Waarschijnlijk niet gevoeld, 15km diep en 1.9 maar toch, weer een tektonische aardbeving bij het breukensysteem in Zuid Limburg

In April of 2025, a M6.2 earthquake struck along the northern branch of the North Anatolian Fault Zone in Turkey's Marmara Sea. The capital city of Istanbul sits on the northern shores. In our latest, experts dive into the details. temblor.net/earthquake-i...

⚒️ 🧪 A M7.4 earthquake struck Russia's Kamchatka peninsula today: the largest aftershock so far of the great M8.8 on July 29th. What do we see in the seismic data so far? And what are the chances of a triggered earthquake next door? earthquakeinsights.substack.com/p/m74-earthq...

Today’s M7.4 aftershock of the Kamchatka #earthquake was located in the Northern section of the mainshock rupture, where most aftershocks (in pink/purple) and foreshocks occurred. This event was also an interface thrust earthquake, but slip was concentrated at a greater depth. ⚒️🧪

Hell of an aftershock! Kamchatka earthquake just now M>=7.7 🧪⚒️

Here are some things that Charlie Kirk said in his life. The man is dead, and so it only seems fair to share his legacy by cataloguing the values he spread while alive.

Het systeem van breuken, die in Zuid Limburg aan het oppervlak komen, loopt in NWelijke richting door tot ver in de ondergrond van de Noordzee. Dat blijkt maar weer eens!

Recente aardbeving in Nederland: op 09-09-2025 om 18:24:35 UTC (20:24:35 NL) vond in de #Noordzee een #aardbeving plaats met een magnitude van 2,9 (reviewed). https://www.knmi.nl/nederland-nu/seismologie/aardbevingen/knmi2025rrzs Melding ontvangen bij een aardbeving? Download de KNMI-app. #KNMI

Elke talkshow is een nieuwe aflevering van zendtijd voor politieke partij - VVD.

September 7, 1964 marks the anniversary of the publication of one of the most cited papers in geology: “Magnetic Anomalies Over Oceanic Ridges" by Vine & Matthews: www.nature.com/articles/201...

📌Must read! "In Canada, vehicles are used for a mere 380 hours annually out of 8,760 possible hours, a staggering 4% utilisation rate. 😱 Yet we've built entire civilisations around this massive inefficiency, dedicating roughly 350 square feet of land per car at both origin and destination."

Dit is een van de weinige hints dat Lord of the Rings fantasy moet zijn.

Hahahaha!

Oh nee... opnieuw een #aardbeving in #Afghanistan, vlak bij die van 4 dagen terug...

Oh wow that's not good. Shallow, very strong M6.3 #earthquake in Afghanistan, a few km away from the deadly M6.0 just 4 days ago! ⚒️🧪 www.volcanodiscovery.com/earthquakes/...

The amount of carbon that forests can take up is much lower than previous estimates. If we don't reduce CO₂ emissions rapidly, we can say goodbye to the Paris climate targets forever.

Earlier this week a paper dramatically reduced the realistic potential for forest carbon storage. Now another downgrades the capacity of geological storage. Emissions reductions are the only effective climate action.

Regering-Trump is bezig met ‘vernietigen’ van universiteiten als vrijplaats voor kennis, zegt gewezen Harvard-bestuurder Claudine Gay

Ordovician Orthoceratite Limestone from Öland in the orangery at Hampton Court Palace. Large orthoceras fossils #urbangeology

My latest: Two studies in the past week have drastically reworked our understanding of the inside of Mars, showing it has a surprise solid inner core -- and the remanants of the cataclysmic collisions that formed it. (That is, if they hold up.)

Politieke krimpflatie: kiezer krijgt steeds minder beleid voor dezelfde hoeveelheid stem

Seismicity map of the region of the M6.0 #earthquake in Afghanistan that occurred yesterday. This event was a shallow reverse event, and has caused many fatalities. Numerous remote villages have been reported to have been heavily damaged, but are difficult to reach. ⚒️

Section 👇 from Shnizai & Walker in Tektonika 2024 @wearetektonika.bsky.social shows structure of Jalalabad basin, E #Afghanistan. It's not right across the recent #earthquake but more to the W. The earthquake may have occurred on a thrust fault equivalent to the one to the left of the section. 1/2 ⚒️

Ik heb Maarten Keulemans vanmorgen van wat uitleg voorzien voor zijn artikel over de Afghanistanbevingen van vanmorgen: www.volkskrant.nl/wetenschap/w...

#aardbeving #Afghanistan: de plaatgrens tussen India en Eurazie is er hier een complex van allerlei blokken en plaatfragmenten, met daartussen een netwerk aan breuken. De beving was ondiep (hoe diep precies lastig: geen goed seismisch station in de buurt), dicht bij Jalalabad. Bad news.

The Jalalabad Earthquake--shallow event (nominally 8 km, but depth control is going to be poor as the nearest station is >100 km away) with a reverse (compressional) focal mechanism, aftershocks suggest the fault dips to the northwest. Around 28 km away from Jalalabad (~270,000 people)--not good.

#FossilFriday Hedwig Kniker, Esther Applin & Alva Ellisor were the first to identify the importance of Foraminifera microfossils in correlating & interpreting stratigraphies, in 1921 #WomenInSTEM ⚒️🧪🔬 paleonerdish.wordpress.com/2022/06/29/f...

PERSCO IN WASHINGTON Dag mensen, fijn dat u er bent. Er is slecht nieuws: de president is hedenmorgen opgestaan toen weer aan het werk gegaan. Wij wensen u in deze tijd veel sterkte en saamhorigheid.

Aardwetenschappers in mijn tijdlijn: vertel het de studenten! 🙂

Nieuw boek! Met 230 miljoen jaar geschiedenis op 1 bladzijde, de moderne-mensheid lichtelijk afgerond naar boven en de Chicxulub-meteoriet in de vorm van een komma. #kinderboek #wetenschapscommunicatie

Sand batteries are literally just silos of sand that retain heat exceptionally well -- so well that they can be tied to heat exchange systems to serve as proxy *electrical* batteries. Finland's new model can store enough power (100 MWh) to heat an entire town for a week. newatlas.com/energy/large...

Not so much plate tectonics happened on #Mars, according to the findings of seismographs on Mars.

🧪 The #EnergyTransition needs us to store #hydrogen and other energy vectors. 🪨 The #geological storage, in the rocks beneath our feet, represent just one of several options. 🗣️ In this talk for EAGE, I look at the geological challenges related to H2, air, and heat ⬇️ youtu.be/kKmuETRM99E?...