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nemfrog · 9 months

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Volcano, above and below. Science Today and Tomorrow: Discovering with Science. 1954.

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#textbook illustration #magma #volcanism #volcano #geology #volcanic eruption #nemfrog #1954 #1950s #subterranean

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389 · 1 year

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Lava destroys houses in La Laguna town as the Cumbre Vieja volcano continues to erupt on the Canary island of La Palma, Spain, 2021

#lava #landscape #photography #volcanism #nature #la palma #spain #canary island #u #z

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probablyasocialecologist · 1 year

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“My bet is there was an eruption of a lava lake,” says Robert Herrick, a planetary scientist at the University of Alaska Fairbanks and one of the new study’s two co-authors.

As reported today in the in the journal Science, Herrick and a colleague spotted the volcanic maw—on the side of the colossal volcano Maat Mons—in radar images taken by NASA’s Magellan spacecraft in 1991.

“This is one of the most convincing pieces of evidence we’ve seen,” says Stephen Kane, a planetary astrophysicist at the University of California, Riverside, who was not involved with the work.

The results have stunned the scientific community. Experts expected to find erupting volcanoes on Venus, but not until two spacecraft with cutting-edge, cloud-penetrating radar systems—NASA’s VERITAS and Europe’s EnVision—arrive sometime in the early 2030s.

Evidence of ongoing volcanic activity on Venus has existential implications. The planet is much like Earth in size and composition, but its considerable ancient stores of water—possibly in the form of oceans—were vaporized long ago when the planet was scorched during a mysterious cataclysm. Runaway climate change triggered by apocalyptic eruptions remains the prime suspect. By understanding Venus’s present-day volcanism, scientists can learn more about the divergent fates of Earth and its blistering sister world.

“If you want to understand the only other Earth-size world we will ever get to, anywhere in the universe, Venus is the only choice you have,” says Paul Byrne, a planetary scientist at Washington University in St. Louis who was not part of the new study.

#Venus #astronomy #space #volcanism

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fantomette22 · 6 months

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Nightmare frontier (Loran) geologic interpretation

Alright, here I am to talk about another detail I noticed while replaying Bloodborne! It has more to do with well the geology of the nightmare frontier and from what it's based on in real life. I like analysis and trying to understand those in video game! But also might bue because I'm a technician geologist too XD Still I will try to stay simple and short.

So The Nightmare frontier in the Nightmare. This optional zone you can unlock thanks to Patches! And where we fight the Amygdala to obtained the Loran's chalice.

Notes : the nightmares are in layers. Mensis nightmare is on top then the frontier, under the fishing hamlet with the boats. And under the hamlet the hunter's nightmare/Yharnam of the dlc. For the one who didn't knew.

Notes 2 : The nightmare frontier is probably a nightmare originating from the region where Loran is (the out place area and the Loran chalice are goos indicator). You know that Pthumerian civilisation far from pthumeru & Yharnam who all become beasts... But if you are into the lore you probably know about Loran and all.

So in the frontiers we can find those strange stone hexagonal columns around :

Well it is a real geologic structures! Also named volcanic (basalts) columns, organ pipes etc (orgues volcaniques in French)

Volcanic columns of Panska skala. Source image : https://planet-terre.ens-lyon.fr/ressource/orgues-volcaniques.xml,

So, how it's formed? Well it is a bit complex but I will try to explain simply. You see those are formed from (effusive) volcanism (don't cofound with magmatic plutonism). You see when a volcano create really liquid lava and don't explode it's effusive. The lava cooled fast on the surface (huge thermic difference with the air or water) and don't crystallised, it often formed basalts (this black rock without minerals visible) or similars stone (can be andesite too in that case or even diorite. It's the same "family").

Those columns are not directly made on the surface but meters under the first couch of lava or they can be formed in magmatic veins that came from a magmatic chamber (in the ground) but cooled way faster than the chamber: it can create those or dyke or sills for exemple/ A magmatic chamber who cooled of will be crystallised on the contrary and take a lot of time! (Thousand if not millions of year) Still it's seems those columns take years or century to become rocks. Still it is "fast" on a geological levels.

Apparently with specific conditions temperature it create this hexagonal columns. It is also similar when clay who became dry and cracked on the ground if you prefer.

Anyway those volcanic columns can be found in many places! Europe, Africa, Asia, America etc There are usually millions of years old and we can see them thanks to erosions of the more tender rocks around it.

The first pic I show are at 80/100km north to Prague in Czech Republic. And You know Bloodborne is a bit more based on easter Europe so 👀

Anyway I think this is very cool the devs inspire themself from those! Very Interesting!

SO what it says about Loran region and Bloodborne world then ?🤔 Well I'm not sure but it's sure is very ancient geologic formation and even in XIX century 2 big theories fought about geology so it sure could be see as specials for old civilisation! Especially in link with old great ones or smt. And maybe Loran could be closer to Yharnam than we think.

ALSO

You see those weird ?ball rocks? in the all the nightmare area? really remind me of pillow lava. You know when lava pierce through the ocean and cold really fast

Ok and I'm not sure for Yharnam or Cainhurst geology but pretty sure the fishing hamlet is volcanic stone too. Why? Well the huge massifs black stones and the BLACK SAND, like in Hawaii ! Or in Iceland. Volcanic region with huge volcanic activity.

Black sand always means it came from volcanic rocks or that it's rich in iron minerals for exemple.

#bloodborne #bloodborne thoughts #bloodborne analysis #bloodborne theory #nightmare frontier #loran #fromsoftware #geology #I love geology in video games! my 2 passions!#volcanism #volcanic column

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aisling-saoirse · 7 months

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Hveradalir Geothermal Springs - October 7th 2023

#iceland #nature #volcanism #geothermal springs #original phography #photographers on tumblr #arctic #autumn #lensblr

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panicinthestudio · 5 months

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What NASA Is Looking For In Yellowstone National Park, November 22, 2023

The Grand Prismatic Spring is the most recognizable thermal feature of Yellowstone National Park, but some of its most fascinating features are invisible to the naked eye. Underwater exists a diverse system of microbes which scientists have been studying for decades, and have been the catalyst for life changing discoveries. Could these microbes be the key to discovering life on other planets? Untold Earth explores the seeming impossibilities behind our planet’s strangest, most unique natural wonders. From fragile, untouched ecosystems to familiar but unexplained occurrences in our own backyard, this series chases insight into natural phenomena through the voices that know them best. Untold Earth is produced in partnership with Atlas Obscura and Nature. PBS Terra

#geology #volcanism #biology #landscape #microbiology #pbs #PBS Terra #Atlas Obscura #Nature #television #Yellowstone National Park #Grand Prismatic Spring #USA #NASA #space #xenobiology #Youtube

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sososmess · 11 months

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#biology #nature #naturewave #photography #volcano #geography #geografía #volcanism #fotografia #national geographic

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data-and-vision · 8 months

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Volcanic bedrock map from Epithermal gold veins in a caldera setting: Banská Hodruša, Slovakia

#geology #map #volcanism #economic geology

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2022dirt · 9 months

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Mount Etna volcano can blow perfect smoke rings every few hours or so.

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geosgaymer · 10 months

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Out in the Tetons doing geology and science things

#gay geek #college student #grad student #fieldwork #collegeblr #gay #gayguy #geology #grand teton national park #volcanism #volcanology

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a-dinosaur-a-day · 8 months

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But haven’t many of the largest volcanic eruptions occurred over 10 million years ago? Which I know is not the timeline being portrayed in the dinosaur media you’re describing, but it’s certainly a long time ago. And MANY of the largest eruptions occurred over 100 million years ago, and some even billions of years ago.

So I guess I’m confused why volcanoes and dinosaurs being depicted together seems odd to you? I would assume the large amount of extremely significant eruptions being so long ago likely contributes to that!

(No negativity or criticism meant here. I just want to learn a little more about why that’s considered odd. However, I do think the depiction of constant erupting volcanoes is certainly over the top)

Okay I’m not a volcanologist so I admit I don’t know all the details about this. I do know

• major incidents of volcanism have happened and affected life on earth during written history

• some of the biggest volcanism happened AFTER the k-pg

• the mass extinction caused by volcanoes (end Permian) happened before dinos even evolved

So it’s mostly bemusement at Mesozoic dinos - esp ones from the end Cretaceous and not in India, where the Deccan traps were - are often painted in front of exploding volcanoes like that was just a constant event before humans showed up

#volcanism

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wayti-blog · 2 years

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“(...) experts argue that the lava is not blue, instead the volcano contains large deposits of pure sulphur which gives off the incredible “neon blue” colour as it burns. When sulphur is spewed out at such high temperatures and pressures, its lava glows blue.”

“According to a Paris-based photographer, Olivier Grunewald, it is when the sulphuric gases come out of the vents or cracks in the volcano and get in contact with the oxygen-rich atmospheric air that the light is produced. This is the reason behind the blue flame which flows down the slope as burning hot liquid sulphur, after the sulphur gases condense, giving the illusion of lava flowing after a volcanic eruption.”