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Sam Kelley

@arctic-glacial.bsky.social
74 followers 85 following 66 posts

website - sam.kelley.net

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Reposted by Sam Kelley
Melaine Le Roy @subfossilguy.bsky.social · 13/10/2026
We are advertising a Master 2 internship (5 months) starting end of January 2027! 📣 👇 If you want to dig into past Holocene glaciation in the Andes through cosmogenic dating and glaciological modeling, this is for you! 🏔️ 🧊 ⏱️ Work based in @cerege.bsky.social. Please apply before Nov. 5th!
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Sam Kelley @arctic-glacial.bsky.social · 05/10/2026
Another good trip to Louisburgh for our 3rd year field mapping course. Great students, good geology, mostly good weather, and a nice resulting map
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Sam Kelley @arctic-glacial.bsky.social · 14/08/2026
Easier to leave when the weather is like this. very fortunate to have had almost an entirely sunny field season.
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Sam Kelley @arctic-glacial.bsky.social · 14/08/2026
A great trip is done, samples off to be shipped. Time to head south.
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Sam Kelley @arctic-glacial.bsky.social · 11/08/2026
Amazing to see the landscape with a dusting of snow.
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Sam Kelley @arctic-glacial.bsky.social · 10/08/2026
We’re headed back to port after a successful field season. Dodging snowstorms along the north coast of Spitsbergen
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Sam Kelley @arctic-glacial.bsky.social · 08/08/2026
Also got to visit Kinvika Station, a 1960s polar station.
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Sam Kelley @arctic-glacial.bsky.social · 08/08/2026
Out supporting the @protosignslab.bsky.social search for Neoprotorozoic fossils around Nordaustlandlet. Truly a lunar landscape.
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Sam Kelley @arctic-glacial.bsky.social · 07/08/2026
Moving from Quaternary glacial evidence to much older glacial sediment from the time of snowball Earth, as well as volcanic material that floated to Svalbard during the Holocene.
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Sam Kelley @arctic-glacial.bsky.social · 06/08/2026
One more day of chasing glacial clues of past climate in Lomfjorden before heading even further north.
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Sam Kelley @arctic-glacial.bsky.social · 02/08/2026
Great to have @katyfield.bsky.social from @protosignslab.bsky.social to use her zoology background to help identify the bones we were finding
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Sam Kelley @arctic-glacial.bsky.social · 02/08/2026
Today was a day for tracking past sea level change. We found lots of raised beaches, shells, and a few whale bones.
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Sam Kelley @arctic-glacial.bsky.social · 31/07/2026
Today’s animal visitor (among quite a few)
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Sam Kelley @arctic-glacial.bsky.social · 31/07/2026
A bit of Quaternary field work today sampling potential early Holocene moraines, with a nice meltwater channel carved into bedrock.
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Sam Kelley @arctic-glacial.bsky.social · 31/07/2026
A bit of both to be honest, they are quite short
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Sam Kelley @arctic-glacial.bsky.social · 30/07/2026
Also, reindeer.
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Sam Kelley @arctic-glacial.bsky.social · 30/07/2026
Great first day in the field mix of 800 million year old stromatolites and 10,000 year old glacial geology. @protosignslab.bsky.social
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Sam Kelley @arctic-glacial.bsky.social · 30/07/2026
Finally on site for our field work, two weeks of Neoproterozoic fossils and Quaternary geology. @protosignslab.bsky.social @ucdearth.bsky.social
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Sam Kelley @arctic-glacial.bsky.social · 29/07/2026
@protosignslab.bsky.social
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Sam Kelley @arctic-glacial.bsky.social · 29/07/2026
Plus walruses
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Sam Kelley @arctic-glacial.bsky.social · 29/07/2026
A few of the glaciers of NW Spitsbergen
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Sam Kelley @arctic-glacial.bsky.social · 29/07/2026
Brief stop on the way north in Ny-Alesund, the launching point for Amundsen’s zeppelin trip to the pole, and home to a number of Arctic research stations today. @ucdearth.bsky.social @protosignslab.bsky.social
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Sam Kelley @arctic-glacial.bsky.social · 28/07/2026
Good bye Longyearbyen, see you in a few weeks
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Sam Kelley @arctic-glacial.bsky.social · 28/07/2026
Setting off for further north with @protosignslab.bsky.social
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Sam Kelley @arctic-glacial.bsky.social · 25/07/2026
Also some very rotund reindeer
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Sam Kelley @arctic-glacial.bsky.social · 25/07/2026
glacial features and permafrost everywhere
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Sam Kelley @arctic-glacial.bsky.social · 25/07/2026
Great walk to catch up on the local geology around Longyearbyen before we head north.
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Sam Kelley @arctic-glacial.bsky.social · 23/07/2026
hoping the good weather sticks around with @protosignslab.bsky.social
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Sam Kelley @arctic-glacial.bsky.social · 23/07/2026
great day for a shake-down hike to make sure all the field gear is working.
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Sam Kelley @arctic-glacial.bsky.social · 22/07/2026
In Longyearbyen to brush up on safety training before heading out to the field.
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Sam Kelley @arctic-glacial.bsky.social · 21/07/2026
The early stages of a big trip. Headed up to Svalbard to support the @protosignslab.bsky.social expedition to NE Svalbard.
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Sam Kelley @arctic-glacial.bsky.social · 09/07/2026
Also some nice moraines in the corries, if you're into that kind of thing
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Sam Kelley @arctic-glacial.bsky.social · 11/05/2026
Such a good trip to be out and talking about the many aspects of mountain landscapes.
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Reposted by Sam Kelley
Graeme Warren @graemewarren.bsky.social · 30/04/2026
Wonderful day out in the Wicklow Hills with Sam Kelley @arctic-glacial.bsky.social providing a CPD for Mountain Leaders on behalf of @mountaineeringirl.bsky.social focusing on cultural and geological heritage. Thanks to MI and especially Helen Lawless for organising!
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Sam Kelley @arctic-glacial.bsky.social · 26/02/2026
Great day out in the Dublin Mtns looking at evidence of the past ice sheets in Ireland with our 4th year class. We were very lucky to have caught the first dry day in quite a while; tors always look better in the sunshine.
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Sam Kelley @arctic-glacial.bsky.social · 23/02/2026
Lovely piece by @francesmack.bsky.social on work from @graemewarren.bsky.social and myself in Scotland. planetforward.org/story/lookin...
planetforward.org
Looking Up: Climate history in the Scottish Highlands
“Looking Up”, a study conducted by University College Dublin, uses interdisciplinary insights to offer a window into Scottish history.
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Sam Kelley @arctic-glacial.bsky.social · 10/02/2026
Great time spent in NW Mayo, fascinating archaeology and glacial geology.
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Sam Kelley @arctic-glacial.bsky.social · 08/12/2025
Many thanks to all who attended the #IQUAAutumnSymposium, and thanks to @geolsurvie.bsky.social for providing a wonderful venue.
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Sam Kelley @arctic-glacial.bsky.social · 04/12/2025
Looking forward to the @quaternaryirl.bsky.social autumn symposium tomorrow, with keynote talks from Gregor Rink (Galway) and Andrew Cooper (Ulster) about how Ireland's coastline has changed. Many thanks to the Geology Survey of Ireland for hosting us.
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Sam Kelley @arctic-glacial.bsky.social · 24/10/2025
Not a place I expected to publish, but great to see the summary of our geology-archaeology collaboration is so popular. Open Access summary paper linked below. Thanks to the IRC, now @researchireland.ie, for supporting this work.
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Sam Kelley @arctic-glacial.bsky.social · 25/09/2025
Another great piece about our terrestrial cosmogenic nuclide research in Ireland by @francesmack.bsky.social and Cathy Ching from @medillschool.bsky.social thebulletin.org/2025/09/how-...
thebulletin.org
Earth’s future written in stone: How geoscientists in Ireland use Ice Age boulders to forecast climate change
Researchers are chipping away at the mountains of climate change evidence in Ireland’s glacial geology.
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Sam Kelley @arctic-glacial.bsky.social · 08/09/2025
Last spring, we had two journalism students from a visit to get hands-on experience with research. Below is one of the stories that came from that visit, about collaborative research between Margaret Jackson (TCD) and myself. news.medill.northwestern.edu/chicago/digg...
news.medill.northwestern.edu
Digging into Ireland’s Ice Age legacy could improve sea level predictions - Medill Reports Chicago
By Cathy Ching Medill Reports IRELAND – Ireland and much of Northern Europe was once buried under a large ice sheet tens of thousands of years ago. Today, long after the ice has retreated, the land is...
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Sam Kelley @arctic-glacial.bsky.social · 04/09/2025
Despite the midges, it was a great trip
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Sam Kelley @arctic-glacial.bsky.social · 04/09/2025
A big thank you to @nts-archaeology.bsky.social and Mar Lodge Estate for access and @researchireland.ie for funding postgraduate research.
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Sam Kelley @arctic-glacial.bsky.social · 04/09/2025
By accurately surveying in geomorphic features, we can make estimates of lake volume, as well as discharge when the lake drained. Thanks to Martin from @ucdarchaeology.bsky.social for the help with (and carrying) the GPS equipment.
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Sam Kelley @arctic-glacial.bsky.social · 04/09/2025
To map the extent of a former lake in Glen Dee, we found old shorelines, meltwater channels and washed moraines, which, altogether, give us a better picture of the extent of the former lake and the possible route it took when an outburst flood took place.
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Sam Kelley @arctic-glacial.bsky.social · 04/09/2025
A busy return to Ireland, but the geology team of Clara and I had a great field season mapping palaeo-lake features in Glen Dee, such as this lake shoreline behind Corrour Bothy.
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Sam Kelley @arctic-glacial.bsky.social · 28/05/2025
Hearthfelt thanks to @n-t-s.bsky.social @cairngormsnews.bsky.social , and @naturescot.bsky.social for sampling permissions and access to field sites.
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Sam Kelley @arctic-glacial.bsky.social · 28/05/2025
For the second question, we found that ice remained in protected corries longer than on the plateau, possibly into the earliest Holocene.
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Sam Kelley @arctic-glacial.bsky.social · 28/05/2025
For the first question, the paired isotope approach told us two things: 1) The highest part of the plateau became a nunatak at ~23 ka (agreement between 14C and 10Be) 2) Lower on the plateau, consistent 14C ages indicate deglaciation during the B-A, while 10Be shows varied amounts of inheritance
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