Maria Box
@mariabox.bsky.social
140 followers 460 following 30 posts
PhD student at Northumbria University (UK), currently researching past climate in northern Mongolia. Generally excited by all speleothems great and small
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mariabox.bsky.social
Intro post! I'm Maria, a UK-based PhD student interested in continental climates. In my current project I use stalagmites from northern Mongolia to reconstruct past environments and permafrost extent over the past 500 ka. I've also worked in central Aus and the west US! Nice to meet you, bluesky :)
mariabox.bsky.social
Would definitely be an interesting case study! See if we can identify the English Civil War in a stalagmite?? Yet another wonderful application for speleothem-based reconstructions 🤣
mariabox.bsky.social
In the UK, it's not uncommon to find urban stalactites growing in old tunnels. However, in a 15th century battery running under #carlislecastle, I saw my first ever urban *stalagmites*. Complete with active soda straw drips above! (Larissa for scale)
mariabox.bsky.social
In my defense, this is a 5mm slab meant for analysis in another city, so it's very fragile. And I may be a bit stressed.
mariabox.bsky.social
Not saying I'm too attached to my samples, but today I tucked a stalagmite in
Reposted by Maria Box
melnickjeffrey1.bsky.social
"When the first of August came round, the Professor realized he had pleasantly trifled away nearly two months at a task which should have taken little more than a week."

--Willa Cather, 1925 and timeless
mariabox.bsky.social
Duddo Five Stones, first stone circle I've ever visited! They're made of soft sandstone and the deep vertical erosion rills betray the >4,000 years they've been standing
A sandstone megalith with deep vertical erosion grooves 
Five sandstone megaliths standing in a circle
Reposted by Maria Box
Reposted by Maria Box
groomb.bsky.social
Newcastle central station, photo by Sally Ann Norman.
Reposted by Maria Box
sayakbasu.bsky.social
E-see you all the paleoclimate enthusiasts at our ICCP speleothem lecture series-July episode with @mariabox.bsky.social
Date & Time: 18th July, 16:00 KST
Zoom link: pusan.zoom.us/j/8213003163...
mariabox.bsky.social
Unfortunately the sample was found broken (it's from Mongolia, so ice-shattering is common). However, here's a best guess! (Plus, pic of the outside-- its not uncommon to see rippled speleothems in caves, but I never wondered how they'd look in cross-section).
mariabox.bsky.social
I always knew in theory that a speleothem is a sedimentary rock, but I've never seen a cross-bedded stalactite before 😂
Reposted by Maria Box
ashleylynch.bsky.social
WeTransfer just changed their TOS giving themselves permission to train AI on any content you transfer and produce derivative works based on content you transfer that they are allowed to monetize and you are not allowed payment for.

Stop using WeTransfer.
mariabox.bsky.social
this website is wild... I'd say it's like the astrology of climate 'science', but astrology has more coherent terminology 🤦‍♀️ oh lord
Reposted by Maria Box
speleoseb.bsky.social
Read the latest on how ancient cave deposits warn of future permafrost loss! Kudos to a fantastic international team🦣 💪 @olakwiecien3.bsky.social @thomasopel.bsky.social @mariabox.bsky.social @pucicu.de @katharinehayhoe.com @northumbriauni.bsky.social
oxuniearthsci.bsky.social
Scientists have found evidence that Asia was free of permafrost all the way to the Arctic Ocean when Earth’s average temperature was 4.5˚C warmer than today. The results suggest dominantly permafrost-free conditions across the whole Northern Hemisphere during this time period.
A permafrost-free Arctic region when global temperatures were 4.5˚C higher than today
Taba-Ba’astakh Cliffs, Northern Siberia
www.earth.ox.ac.uk
mariabox.bsky.social
Last year, funds from @quaternaryra.bsky.social helped us reach Khuit agui, a spectactular cave deep within Mongolia's continuous permafrost zone. You can now read about the incredible things we found there in the latest edition of the Quaternary Newsletter: www.qra.org.uk/quaternary-n...
Inside a cave, a caver uses ropes to climb a steep rock face between ice waterfalls. Beds of large hexagonal ice crystals inside of a cave.
mariabox.bsky.social
A δ-value of isotope geochemists? 🤔
errantscience.com
It’s important to know the right collective noun for various people working in research and science
mariabox.bsky.social
And this is why models suggest up to 99% of Mongolian permafrost loss by the end of the century 😢

Wonder whether such heatwaves happened in previous interglacials... with such a tight relationship btwn aridity and land temp in these climates, I'm sure our caves could offer some clues.
mariabox.bsky.social
@speleoseb.bsky.social turns out there's a great term for what we were talking about this week
mariabox.bsky.social
Spent this gorgeous sunny weekend at an SRT training course in the Yorkshire Dales. SRT is how we access deep caves, such as those in northern Mongolia. Have to say the Yorkshire caves are a bit warmer!
Reposted by Maria Box
permafrostpathways.bsky.social
"The risks Arctic fires pose on local ecosystems and the communities that depend on them, as well as the destabilizing effect they can have on the global climate, require a rethinking of how fires will be managed in the future."
Powerful StoryMap from @gwandaii.bsky.social @gridarendal.bsky.social
The Arctic is on Fire
Raven, a young Gwich’in woman and firefighter from Inuvik, remembers preparing the local community center to welcoming fire evacuees from Old Crow, a fly-in community some 150 kilometers West of Inuvi...
storymaps.arcgis.com
mariabox.bsky.social
May the 4th be with you and the Δ49 signal be acceptably low!
mariabox.bsky.social
Used this gorgeous Sunday weather to go fossicking around Whitley Bay
mariabox.bsky.social
the tunnel in question. incongruous urban speleothems have to be one of my favourite things about the UK!
mariabox.bsky.social
found some delightful little stalactites and flowstone (tunnel bacon?) beneath a railway bridge this morning :)