14,000 Years Ago, The Most Powerful Solar Storm Ever Recorded Hit Earth - This Event Establishes A New Worst-Case Scenario
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https://www.space.com/astronomy/sun/14-000-years-ago-the-most-powerful-solar-storm-ever-recorded-hit-earth-this-event-establishes-a-new-worst-case-scenario <-- shared technical article
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https://doi.org/10.1016/j.epsl.2025.119383 <-- shared paper
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“A storm as ferocious as the one of 12,350 BC would likely cause complete mayhem if it were to strike Earth and its surrounding space today..."
#spaceweather #prehistoric #extremesolarparticleevents #CCMSOCOL #14CEx #Radiocarbon #GlacialEpoch #solarstorm #infrastructure #risk #hazard #radiocarbon #IceAge #model #modeling #glacial #climate #geomagnetism #magnetic #protons #carbon14 #Quaternary #geology #treerings
#quaternary
🔦 Feldforschung in Alaska: Der #Geologe Paul Wilcox entdeckte dort in einer schwer zugänglichen Höhle rund 20.000 Jahre alte Ablagerungen. Eine Analyse dieser Proben erlaubte Rückschlüsse über das Ende der letzten #Eiszeit und darüber, wie das Abschmelzen der riesigen Gletscher damals vor sich ging.
📖 https://www.nature.com/articles/s41561-025-01694-4
#Geologie #Paläoklima #quaternary #quaternaryScience #paeloclimate
Great field trip stop with a view of the 21,000-year old left lateral moraine from the Little Cottonwood Canyon glacier cut by multiple strands of the Wasatch Fault. #geology #utah #Quaternary
Final lab of the semester for my Quaternary Geology class was a sporting one: fording the river and digging out a nice exposure of 14,000-year-old varves from proglacial Lake Vermont. #geology #Quaternary #Vermont #spring #outside
Dear #EGU25 attendees, please consider going along to our session, "CL1.2.12 Understanding carbon cycle – climate interactions during the Quaternary through the study of oceanic circulation, vegetation, and wildfire", which is taking place on Friday.
https://meetingorganizer.copernicus.org/EGU25/session/51797
@paleofire #palaeofire #Fire #carbon #Quaternary #QuaternaryScience
Students in my Quaternary Geology course came at this exposure from the bottom up, and the top down -- a curious sequence of basal till overlain by silty lake sediments deformed by a later glacial readvance. #geology #earthscience #vermont #Quaternary #outside
After gaining experience at a fairly straightforward site, students in my Quaternary Geology course have moved on to more complicated exposures. This one here reveals basal till beneath proximal subaqueous outwash that was deformed by a readvance. Great stuff! #vermont #geology #EarthScience #glacial #Quaternary #outside
Understanding Geological Time With Associate Professor Stijn Glorie [video]
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https://youtu.be/H2M2ZuVe9pE?si=iTahPKcOe2q2Yhs5 <-- shared video
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“A/Prof Stijn Glorie is a geochronologist at University of Adelaide who uses radio-isotope decay to date rocks, revealing Earth’s evolution and aiding insights into mountains, ores, and climate-tectonics links…”
#geology #time #learning #education #dating #age #epochs #understanding #rocks #structuralgeology #Quaternary #conception
Always a good day when friends have a good day! Out today in NATURE (!) from Monika Markowska - 8 million year record of recurrent humid phases in Arabia.
https://www.nature.com/articles/s41586-025-08859-6
#Quaternary #QuaternaryScience #speleothem #speleothems #palaeoclimate
Ancient Lakes And Rivers Unearthed In Arabia's Vast Desert
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https://phys.org/news/2025-04-ancient-lakes-rivers-unearthed-arabia.html <-- shared technical article
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https://doi.org/10.1038/s43247-025-02224-1 <-- shared paper
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#GIS #spatial #mapping #water #hydrology #quaternary #desert #geomorphology #landforms #geomorphometry #Arabia #climatechange #RubalKhali #SaudiArabia #holocene #model #modeling #spatialanalysis #spatiotemporal #earthsystemmodel #geology #lacustrine #fluvial #sediments #sedimentary #flood #flooding #lakes #AfricanMonsoon #rivers #paleohydrology #stratigraphy #remotesensing #landsat #earthobservation #dating #delta #cliff #terrace #rainfall #precipitation
Students in my #quaternary #geology course retrieved a sediment core from a local lake and analyzed it in the lab. They've produced an impressive dataset to support an environmental reconstruction spanning the past few centuries. Nice to have such solid #ice this #winter! #vermont #fieldwork #EnvironmentalScience #EarthSciences
Evidenced Paleodrainages In Desert Regions Of Saudi Arabia - Satellite Images With Field-Based Study
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https://doi.org/10.21203/rs.3.rs-4959129/v1 <-- shared paper
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#GIS #spatial #mapping #water #hydrology #streams #poroussediments #pebbles #RadarImages #SaudiArabia #MiddleEast #remotesensing #drainage #paleodrainage #desert #evidence #satellite #imagery #fieldwork #fieldchecked #Quaternary #Pleistocene #climatechange #geology #landform #geomorphology #arid #streamnetwork #PALSAR #ASTER #thermaldifferentiation #spatialanalysis #multispectral #sediment #lithology #hydromorphic #geomorphmetry #waterresources #usecase
And now, the Version of Record of my latest co-authored #scientific #publication led by Juan Ochando is out in #Quaternary Science Reviews:
https://doi.org/10.1016/j.quascirev.2024.109025
#Science
#ScienceMastodon #AcademicMastodon
#Paper #OpenAccess
#Archaeology #Paleoecology #Geochemistry #Palynology #Neandertal #Experiment
#Gibraltar #Cave #Hearth #Tar
#Biomarkers #Levoglucosan #PAHs #Retene #BPCAs #PyrogenicCarbon #Pollen #Phytoliths
https://mastodon.world/@nina_davtian/113554601654347588
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.
Wonderful to see 11 ARC Discovery Projects awarded to Quaternary projects in Australia! This must be a record for recent years/rounds.
Sleuthing thanks to Prof Simon Haberle at the ANU via the aqualist.
@DrEvanGowan I had a similar thought when looking at the ages and the materials that were dated. Nonetheless, it's fun that there can still be such debate over a thousand-km difference in the position of the ice margin! I'll be interested to see the new data from Manitoba. #glaciers #geology #quaternary
The first paper for our paper club is this recent one from McKay et al., presenting a thorough investigation of the (supposed?) 4.2 ka event. I'd read it when it was published, but just went through again in more detail, and what a good paper. Robust stats (of course, from this group), and they do a really nice job of building the case. I hope the group enjoys it!
Australian quaternarists and micropalaeontologists - applications for the Leanne Armand Travel Award are now open. Details on the #AQUA website: https://aqua.org.au/sample-page/the-leanne-armand-travel-award/
#palaeontology #paleontology #quaternary #IODP #fossils #microfossils #PhD
Quaternary (Geological periods 🌍)
The Quaternary is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy. It follows the Neogene Period and spans from 2.58 million years ago to the present. As of 2023, the Quaternary Period is divided into two epochs: the Pleistocene and the Holocene ; a t...
https://en.wikipedia.org/wiki/Quaternary
#Quaternary #GeologicalPeriods #PhysicalGeography #PhysicalOceanography
#Curtin uni is advertising an ongoing lectureship (level B, teaching and research) in Earth and Planetary Sciences. Pretty broad criteria, would suit someone doing #Quaternary sciene as well as more traditional minerals stuff.