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#Quaternary

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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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space.com/astronomy/sun/14-000 <-- shared technical article
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doi.org/10.1016/j.epsl.2025.11 <-- 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..."

🔦 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.

🆕 uibk.ac.at/de/newsroom/2025/al

📖 nature.com/articles/s41561-025

Paul Wilcox in der Höhle, in welcher er Proben der letzteiszeitlichen Schmelzwassersedimente entnahm.
www.uibk.ac.atAlaska: Höhlensedimente dokumentieren letzteiszeitliche Klimadynamik
More from Universität Innsbruck

Understanding Geological Time With Associate Professor Stijn Glorie [video]
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youtu.be/H2M2ZuVe9pE?si=iTahPK <-- 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…”

youtu.be- YouTubeEnjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

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!

#palaeoclimate #paleoclimate #Holocene #Quaternary

nature.com/articles/s41467-024

NatureThe 4.2 ka event is not remarkable in the context of Holocene climate variability - Nature CommunicationsA study of more than 1000 paleoclimate datasets reveals that the ”4.2 ka event” is not a globally significant climate excursion, unlike the prominent 8.2 ka event. In the Holocene, site-level excursions are common, but global-scale events are rare.