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#carbonate rock
camblorite · 1 year
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Testing a speleothem with hydrochloric acid. The calcium carbonate present in the calcite of the rock reacts with this acid and produces bubbles, carbon dioxide gas, water, and calcium chloride.
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loxare · 7 months
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do i.. WANT to know about the drumlins?
YES YOU DO
Drumlins are glacial landforms, which means you find them only in places that have been glaciated. And they're very distinct when you know what you're looking for.
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A hill with one steep side, one looooong sloping side, and you've (most likely) got yourself a drumlin. (Unless it's small. Drumlins are tens of meters high and hundreds of meters long, so if you've got a short one with way more elongation, you've got a drumlinoid.) They're all over Canada,the north eastern US, and northern Europe. The one pictured above is in Ireland. The ones in Canada and the US formed as the Laurentide Ice Sheet, a kilometers thick mass of glacial ice, was spreading across North America during the Last Glacial Maximum
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There are lots of really cool glacial landforms (eskers and kames and lakes (Glacial Lake Agassiz my beloved) and like a dozen types of moraine), but drumlins are my favourite because they're so incredibly easy to identify, they occur in swarms, and they're kinda weird as hell
There's still some debate among geomorphologists about how, exactly, they form but I was told that the (mindbogglingly huge mass of) ice catches on a sticky uppy bit of bedrock and instead of mowing it down like a child kicking over a stack of blocks, moves around it instead. And because there's now a place behind the bedrock where there's less ice, the ice drops a whole bunch of glacial till (all the bits of sediment that did get mowed down like a child kicking over a stack of blocks) on the other side of the bedrock bit
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(This is a constructional theory, where the drumlin is built up. the other main one is the erosional theory, where everything but the drumlin is eroded. There's also a theory that drumlins are deposited by subglacial meltwater, but that one is highly controversial)
"Now wait," I hear you say, "go back a bit. What the fuck was that about swarms?"
They occur in swarms.
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If you've got one drumlin, good chances you've got a lot of drumlins. Which is actually amazing, because the steep side of the drumlin faces the direction of flow, which means we know exactly how the ice sheet moved. In this image, for example, the ice started at the top, near Lake Ontario, and then moved south. From looking at drumlins (and other glacial landforms, we do like to have multiple reference points), we know that the Laurentide Ice Sheet started in the Hudson Bay and crept out from there
And because they're so distinct (tear drop shaped, made of till, occur in swarms), and because drumlins can only have been made by glacial activity, we can look all over the world and find these things and know that this place was once under several thousand tonnes of ice
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Not during the Last Glacial Maximum, but definitely ones before it. And I just think that's neat
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allmyandroids · 2 months
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I THINK HE IS PRETTY NEAT AND CRAZY DRUNKEN ON POWER BABYGIRL MAN (look at the lil sway dancy dance he does agsgs i lov himst💞)
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prasemvanguardgerman · 2 months
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Some fossiled Shells of snails embeddet on the sedimented rock. Limestone is my suggestion easy crumbling.
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carbon-mono · 6 months
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Ya boi just got a new fresh pre-christmas tattoo 🦅
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solitarysketcher · 7 months
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Could you imagine werewolf Toast on a full moon Halloween? Ghost outta disable the doorbell for the night...
he gets to go out on the town.as a treat.
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spilladabalia · 7 months
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45 Grave Riboflavin Flavored Non-Carbonated Polyunsaturated Blood
youtube
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*to the tune of party rock is in the house*
a thousand wasps are in the house tonight
ain't nobody gon have a good time
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femmeidiot · 2 months
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Can I ask why the nitrogen cycle is your beloathed? Like is it just the vibes
because I can't fucking memorize it to save my life I had to memorize it for multiple classes and I just couldn't. I hate it!!
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blackthxrntree · 2 months
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carbon dating rocks!
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dogwittaablog · 3 months
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I had a crush for a while in this outdoorsy biologist (so I am) guy
He didn't shower much
Greasy hair
What we called... The field scent...
And I kept thinking: Is that the how Nolpat experience is?
“Field scent” ahhh you mean the classic “au naturel” must.
You're getting the knock-off Nolpat experience.
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3.3: Carbon Capture and Storage with Prof Mike Bickle
In this ep, Christina talks to Dr. Mike Bickle, professor emeritus at the Earth Sciences Department at the University of Cambridge about carbon capture and storage: methods, dangers, what it would take to deploy at necessary scale. Join us!
Conquering climate change for our survival and that of much of the rest of the biosphere calls for more than attaining net zero emissions of greenhouse gasses to the atmosphere. We also need to actively remove much of the 140 extra parts per million of carbon dioxide currently up there in the atmosphere thanks to our burning of fossil fuels and destruction of so much of Earth’s biosphere. Both…
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thegreenpea · 6 months
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God why did I think I would ever have a logical sensible debate on tiktok over the trolley problem
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solitarysketcher · 2 months
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FEMME JERMA!!!!!!
I HAVE BEEN TRANSFORMED. MORPHED. MY BODY HAS CHANGED FROM KESTRENEL D'RENTAN INTO FEMME JERMA.
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opens-up-4-nobody · 2 years
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...
#uuuugh i desperately want to take a geology course#and aquire paleontology friends#and be a paleontologist. i mean i wanna be an astrobiologist with Microbiology. ecology. evolutionary biology. geology. and paleontology#influences. also biochemistry. and that's all vaid bc astrobiology is intersectional. i can get there however i want#and what i want is to look at the evolution of biochemistry in cyanobacteria but finding someone who does something that specific is hard#but like learning abt paleontology has broken my brain a bit. like maybe its just bc im in the desert and u can see the exposed ground but#like i look at the landscape and see the volcanic rock and uplifted areas snd everything and its just like#holy fuck we are walking around on 4billion years worth of history and i wanna kno how all those processes work#in terms of making the landscape how it is#and i got to see some fucking wild trace fossils the other day and i was so fucking excited to see them#and when i go home to visit i think we're gonna see a pretty good natural history museum#bc my parents were like: what do u wanna do while ur home? and i was like well u see i am v into paleontology atm#and im v excited to go with them bc idk they kno what kinda freak i am and that always makes things easier#also they would prob read the info on the exibits if i asked bc i cant fucking read lol#and my mum is v into rock collecting rn so that is an excuse for me to learn abt geology stuff#hhhhh there is just so much cool stuff to learn#and everyday i have to sit there and do my lab work on a topic that i have greatly diverged away from#like my boss was like: im so excited. when we publish all this data u will be the name ppl think of when they think of carbon cycling in X#system! which is true. its a narrow field and ive generated lots of data#and what do i feel abt all that data? absolutely fuck all. its like ive maliciously collected a bunch of little gems and then im gonna#uncarimonially dump them on the floor for a tiny collection of ppl and then walk the fuck out the door#idk its probably just me being passive aggressive bc collecting the data has/is casuing me such physical and mental strain#but god if i could take a paleontology class rn id be so fucking annoying abt it. to b fair id also be the same abt a Microbiology class#sigh... maybe within the next year#unrelated#lmao im extremely annoying abt paleontology now and i havent even taken a class#at every chance im just like: well u kno... *insert fact here*#and i feel so obnoxious but i can't stop so i guess its just a hazard of being around me haha
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unforromass · 1 year
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"Ni la bengala ni el rocanrol, a nuestros pibes los mató la corrupción..."🎶
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