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3 posts2 participants0 posts today

**Jeff Munroe** @jmunroe@fediscience.org · 4d

Jeff Munroe @jmunroe@fediscience.org

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

A dozen people wearing chest waders fording a wide river.

A distant view of people digging in a river bank. Trees are just beginning to show spring green colors.

**Dr Micha Campbell** @michcampbell@fediscience.org · Apr 29

Apr 29

Dr Micha Campbell @michcampbell@fediscience.org

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

meetingorganizer.copernicus.orgSession CL1.2.12

**Jeff Munroe** @jmunroe@fediscience.org · Apr 23

Apr 23

Jeff Munroe @jmunroe@fediscience.org

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

A group of people spread out along the base of a steep exposure of tan colored sediment. A single person anchored to a rope is descending from the top of the exposure.

**Jeff Munroe** @jmunroe@fediscience.org · Apr 16

Apr 16

Jeff Munroe @jmunroe@fediscience.org

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

A group of six people examine a ~20-foot tall exposure of layered sandy sediment high above a river under gray skies. The sediments feature swirling patterns of gray and reddish colors. The sky is gray. A few green conifers stand out on the distance hillside.

**Greg Cocks** @GregCocks@techhub.social · Apr 15

Apr 15

Greg Cocks @GregCocks@techhub.social

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

YouTubeUnderstanding geological time with Associate Professor Stijn GlorieBy Australian Academy of Science

**Dr Micha Campbell** @michcampbell@fediscience.org · Apr 10

Apr 10

Dr Micha Campbell @michcampbell@fediscience.org

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

NatureRecurrent humid phases in Arabia over the past 8 million years - NatureA climatic record from desert speleothems shows that the central Arabian interior experienced recurrent humid intervals over the past 8 million years, which likely facilitated mammalian dispersals between Africa and Eurasia.

#Quaternary #QuaternaryScience #speleothem