#glaciation — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #glaciation, aggregated by home.social.
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Any #geography nerds on Fedi? I was doing some #GameDev research, and noticed the weirdly parallel lakes west of the marker for Ikryaninskiy rayon: https://wego.here.com/p/here%3Acm%3Anamedplace%3A23487107?map=45.80004%2C47.58137%2C9.44
Is that from erosion? Glaciation during the last Ice Age? Baba Yaga? 🤔
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I have made claims about a lagoon of unfrozen water along the east coast of england and scotland during the last ice age. The evidence for this and other absurd claims is laid out here.
https://orkneyriddler.blogspot.com/2026/03/quaternary-addendum.html
#glaciation #IceAge #Britice-Chrono #Quaternary #moraine #IceStream #Devensian #IceSheet #subGlacial #geology #BIIS
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A re-interpretation of evidence for how the ice sheets developed during the last ice age and how deglaciation changed the face of Britain.
#glaciation #IceAge #Britice-Chrono #Quaternary #moraine #IceStream #Devensian #IceSheet #subGlacial #geology
https://orkneyriddler.blogspot.com/2025/11/ice-sheet-britain.html
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De nouvelles galeries à explorer à la caverne de Saint-Léonard
https://estmediamontreal.com/nouvelles-galeries-explorer-caverne-leonard/
#Montréal #Québec #Canada #galeries #caverne #SaintLéonard #spéléologie #géologie #eau #SpéléoQuébec #visites #glaciotectonisme #Ordovicien #glaciation #fossiles #roches #patrimoine #nature #science -
8-May-2026
A new explanation for '#SnowballEarth'
Study reconciles Sturtian #glaciation with physical #climate models -
The New Glacial Geomorphological Map From New Zealand [2021]
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https://blogs.egu.eu/divisions/cr/2021/04/02/new-zealand-geomorphology-glaciers/ <-- shared (2021) technical article/blog, Cryospheric Sciences (CR) Division, @European Geosciences Union
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https://doi.org/10.1080/17445647.2021.1876777 <-- shared (2020) paper
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#GIS #spatial #mapping #NewZealand #geomorphology #NewZealand #SouthernAlps #Quaternary #glaciation #landscape #hydrogeomorphology #water #ice #sediment #glacier #glacial #cryosphere #spatialanalysis #geology #Ahuriri #AhuririRiver #paleolake #WaitakiRiver #basin #remotesensing #postglacial #moraine #glaciology #cryosphere #processes #morphology #LastGlacialMaximum #geochronology -
18-Feb-2026
Understanding #snowballEarth extreme climates — when the world is covered in ice
New research in #Geology suggests an unexpected mechanism could have caused a global #glaciation to last for 56 million years, revealing the inner workings of the #carbonCycle -
A thought-provoking and wide-ranging talk yesterday by Andy Wickert, University of Minnesota.
His group has tracked changes in drainage patterns during the final deglaciation of Minnesota (~11 thousand years ago) to changes in erosion rates since the advent of mechanical agriculture.
#UMN #McGillU #Minnesota #MississippiRiver #Glaciation #Sediments
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Small Waterbodies Of Large Conservation Concern - Towards An Integrated Approach To More Accurately Measuring Surface Water Dynamics
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https://doi.org/10.1016/j.ecolind.2025.113525 <-- shared paper
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“HIGHLIGHTS
• Hydrologic models were used to assess remotely sensed surface water estimates.
• The accuracy of satellite surface water estimates diminished for waterbodies < 2 ha.
• Vegetation reduces accuracy of surface water detection, especially during wet years..."
#GIS #spatial #mapping #waterbodies #Conservation #planning #surfacewater #Hydrologicmodeling #remotesensing #earthobservation #water #hydrology #hydrographic #model #modeling #spatialanalysis #spatiotemporal #waterbody #small #conservation #inventory #monitoring #accuracy #aquatic #vegetation #climate #NorthAmerica #kettle #landforms #landcover #glaciation #prairie #pothole -
Scientists are coming closer to understanding the period of time during Marinoan period. This was about 720 million years ago and the earth is called "snowball earth' during this time. The period lasted somewhere between 4 and 15 million years ago. Scientists have been trying to narrow the time period down. Now by using isotopic dating of ash layers this has been narrowed to it lasting 4 million years.
https://cosmosmagazine.com/earth/earth-sciences/snowball-earth-4-million-life/ -
Diversité génétique du Pin sylvestre
https://www.tela-botanica.org/2025/02/diversite-genetique-du-pin-sylvestre/
#pin #sylvestre #botanique #arbre #science #nature #TelaBotanica #génétique #Eurasie #France #Europe #Asie #Chine #environnement #glaciation
Photo : Pin sylvestre, Jardin de Chine, Jardin botanique de Montréal
http://monde.ccdmd.qc.ca/ressource/?id=119459 -
On a trouvé un trésor en Antarctique : 1,2 million d’années d’histoire climatique
https://reporterre.net/On-a-trouve-un-tresor-en-Antarctique-1-2-million-d-annees-d-histoire-climatique
#science #météorologie #climat #climatologie #Antarctique #glace #glaciation #co2 #température #histoire -
A bit of fun with Simon Clark explaining ice ages and #glaciation across the #geological record in a series of incredibly nerdy sweaters (I think I would wear the one with the icosahedron) while trying to figure out what would it take for #Hell (the towns) to #freeze over.
https://www.youtube.com/watch?v=lYE6LkS_2Go&ab_channel=SimonClark -
An #IceAge is a period of long-term reduction in Earth's temperature, resulting in the expansion of continental ice sheets and alpine glaciers. These periods are characterized by significant changes in climate, sea levels, and ecosystems.
Earth is currently in the ice age called #Quaternary #Glaciation.
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Glen Roy's "parallel roads", north of Roybridge in Lochaber. Long held in folklore to be hunting paths used by the Celtic warrior Fingal, they actually mark different shore lines of a vast ancient loch created by glacial ice. More pics and info: https://www.undiscoveredscotland.co.uk/roybridge/glenroy/index.html
#Scotland #GlenRoy #Lochaber #ParallelRoads #Glaciation #UndiscoveredScotland
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La Réserve écologique des Tourbières-de-Lanoraie : un héritage de la dernière époque glaciaire.
https://actualites.uqam.ca/2024/un-passe-millenaire-sous-la-tourbe/
#écologie #environnement #science #tourbières #Lanoraie #Joliette #Québec #Canadas #glaciation #géologie #climat #UQAM #eau #sphaigne -
Un affleurement en Écosse contient du matériel datant du moment où la Terre est entrée dans un gel profond
https://arstechnica.com/science/2024/09/evidence-of-snowball-earth-found-in-ancient-rocks/
#Terre #géologie #glaciation #Écosse #vie #science #nature #Soleil -
New Study Seeks To Shed Light On Earthquake Hazards In The Gallatin Range
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https://www.usgs.gov/observatories/yvo/news/new-study-seeks-shed-light-earthquake-hazards-gallatin-range <-- shared technical article
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#GIS #spatial #mapping #remotesensing #LiDAR #earthquake #fault #scarps #faulting #opendata #3dep #NGTOC #ruptures #surfaceexpression #risk #hazard #geology #engineeringgeology #geomorphology #geomorphmetry #seismology #elevation #topography #EastGallatin #ReeseCreek #faultsystem #EGRCFS #GallatinRange #GardnersHole #Yellowstone #Wyoming #Montana #USA #glaciation #superposition #dating #geologichistory #NationalSeismicHazardModel #model #modeling #spatialanalysis #spatiotemporal #massmovement #hydrothermal #YellowstoneNationalPark
@USGS -
Svalbard Crisis - Glaciers Melt At Unprecedented Rates As Temperatures Soar [remotesensing]
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https://scitechdaily.com/svalbard-crisis-glaciers-melt-at-unprecedented-rates-as-temperatures-soar/ <-- shared technical article
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“High summer temperatures caused record melting of the Norwegian archipelago’s glaciers…"
#GIS #spatial #mapping #remotesensing #landsat #landsat8 #OperationalLandImager #OLI #Svalbard #archipelago #glacier #glaciation #cryosphere #Norway #NorthPole #warming #summer #summer2024 #climatechange #water #hydrology #sediment #spatiotemporal #spatialanalysis #Arctic #ArcticOcean #firn #icecap #snow #ice #temperature #airtemperature -
Our Very Strange Search for ‘Sea Level’
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https://www.newyorker.com/magazine/2024/08/26/our-very-strange-search-for-sea-level <-- shared media/technical article
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#GIS #spatial #mapping #elevation #vertical #geoid #datum #verticaldatum #sealevel #risingsealevel #RSL #climatechange #survey #change #geology #isostaticrebound #glaciation #groundwater #subsidence #remotesensing #GPS #LiDAR #altimetry #change #spatialanalysis #model #modeling #spatiotemporal #sealrock #meansealevel #NGVD29 #NAVD88 -
Snowball Earth
Through many posts we have talked about the Great Unconformity (yes, you must capitalize it) and how it occurs worldwide in different rock sections. Why? Scientists believe that at several times in Earth’s history the planet was buried in a blanket of ice. Oceans were nearly frozen. This is what scientists call Snowball Earth, or sometimes Slushball Earth.
The last occurred sometime before 650 million years ago, during the aptly named Cryogenian period. In 200 million years, uplift and the giant erosive conveyor belts of ice eroded continents down to the roots of the ancient mountains and left the land at sea level. Think the Canadian Shield. This scraped bare land is the base of the Great Unconformity. As the glaciers melted, sea level rose and covered the land and deposition of sedimentary layers began. Variations of this happened worldwide. We can focus on the North American continent which looked much different at that time. Forget anything west of Idaho or so. It wasn’t there yet.
Wyoming Geologist Myron Cook does a much better job than I could of explaining Snowball Earth, the Great Unconformity, and why different gaps, between hundreds of millions to billions of years of time, exist across what was North America at the time in his great video published only 11 days ago. Throw in a master-class in Deep Time, and you have it all put together as only a master story teller can. And there are lots of rocks, yay! Watch this wonderful video. Yes, it’s long, but you’ll absolutely hate yourself if you don’t get to see the Mineral Fork Tillite and how the story ends. Trust me.
Follow it up with further findings on Snowball earth using thermochronology by Kalin T. McDannell, et. al. including our own @brenhinkeller as they work to help determine if glaciation or the recent hypotheses of tectonic influence had more impact on denudation of the continent. Spoiler alert: read the title of this post again.
https://www.pnas.org/doi/full/10.1073/pnas.2118682119
Another version here: https://eos.org/articles/erasing-a-billion-years-of-geologic-time-across-the-globe
Pinging @BoxcarMurphy who probably knows all about this already :)
#SnowballEarth #SlushballEarth #Glaciation #Cryogenian #TheGreatUnconformity #NorthAmericanContinent #DeepTime #MyronCook #HowSnowballEarthLeveledTheContinentsAndCreatedTheGreatUnconformity #WatchTheDamnVideo #geology #ScienceMastodon @geology