Geobulletin alpha

News from the Geoblogosphere

by Stratigraphy.net

New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

Monday, 01 December 2025

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Empowered by Opportunity: My First GSA Connects Experience Through the OTF Program

Speaking of Geoscience [23:02:59]

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I am Khadijah Audu, a PhD student in the geosciences at the University of Arkansas, where I specialize in remote sensing and GIS applications for multi-hazard assessment and environmental resilience. This October, I had the incredible privilege of attending my first-ever Geological Society of America (GSA) Connects meeting in San Antonio, Texas, USA, thanks to

Natgas zooms so much they can never keep the charts working

Ontario-geofish [19:52:00]

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 Like I said before, wait until the real stuff comes down.  The price is totally determined by how much the coffee cup steams in the morning.ps they are going to freak out with the Thursday storage report.  If you plot this year against the last, then you will see a much more rapid draw-down.  Although nobody knows where the bottom is, they will test it again next

New papers on paleoseismology, active tectonics, and archaeoseismology (Dec 2025)

Paleoseismicity [17:35:33]

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This time we have studies from all over the world, among them a surprisingly large number of papers on historical data. Enjoy reading and let us know in case we’ve missed

Possible Linkages Between Climate and Human History in Ohio (the 4.2 yr. ka interval)

Wooster Geologists [16:54:34]

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Nigel Brush and colleagues have assembled a record of human history in the Walhonding Valley of Ohio (see map below). Along with Jeffrey Dilyard and others, Brush has worked in the region for decades [...]

How did ammonites try to escape their predators?

Earth Learning Idea [15:11:00]

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And now for something completely different . . . 'The ups and downs of ammonites; how did ammonites adjust their position in the sea'.This activity demonstrates how some animals which are buoyant in [...]

Alaska is our pressure relief valve

Ontario-geofish [12:17:00]

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 All the cold air is pouring out through the Bering Str.  That leaves the rest of us with less cold, but the West Coast is freezing.  That air has to go somewhere.San Fran is [...]

WINTER LIGHT: NUSFJORD, LOFOTEN

ARCHEA [10:00:00]

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Nusfjord, Lofoten, NorwayIn the soft blue twilight of a Lofoten winter, the village of Nusfjord sits cradled between mountains that rise like frozen waves. Wooden rorbuer—those classic red [...]

Will Glacier Melt Lead to Increased Seismic Activity in Mountain Regions?

State of the Planet [17:25:43]

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In a recent study, scientists determined that climate change-induced glacial melt may cause more

Volcans et aviation civile – Un risque important

Risque Volcanique [16:06:13]

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Dans le monde entier, il y a environ 1500 volcans potentiellement actifs, dont peut-être 50-70 entrent en éruption chaque année. Toutes les éruptions ne sont pas violentes, car la nature de l’activité [...]

Unforced Variations: Dec 2025

Real Climate [14:57:33]

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This month’s open thread on climate topics as 2025 wraps up. Please be courteous to each other. Tis the season! The post Unforced Variations: Dec 2025 first appeared on RealClimate.

Steampunk Comics: Dinosaurios al vapor

Koprolitos [10:00:00]

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Steampunk Dinosaur (PangolinArts) En 1983 se comenzó a utilizar la etiqueta “cyberpunk” para definir una corriente de ciencia ficción en la que se conjugan visiones distópicas del futuro de la [...]

Book Week 2025, Day 5: The Last Days of the Dinosaurs, by Riley Black

Sauropod Vertebra Picture of the Week [09:30:53]

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I put these Book Week posts into sequence with a level of forethought about one notch above pure randomness, but a felicity emerged. It’s useful for me to cover The Last Days of the Dinosaurs after the [...]