Hacker News with Generative AI: Geology

All Major U.S. Cities Are at Risk of Sinking, Not Just Coastal Urban Areas (discovermagazine.com)
The 28 most populous U.S. cities are all settling to one degree or other, according to a study in Nature Cities.
All of the Biggest U.S. Cities Are Sinking (climate.columbia.edu)
A new study of the 28 most populous U.S. cities finds that all are sinking to one degree or another.
Volcanic Eruption in Deep Ocean Ridge Is Witnessed by Scientists for First Time (nytimes.com)
Researchers diving in a submersible in the eastern Pacific realized that the landscape they had studied the day before had been glassed over by fresh lava.
Anatomy of a 'zombie' volcano: Investigating the cause of unrest inside Uturuncu (sciencedaily.com)
Scientists from China, the UK and the USA have collaborated to analyse the inner workings of Bolivia's "zombie" volcano, Uturuncu.
How the biggest flood in the history of the Earth created the Mediterranean (nationalgeographic.com)
Scientists reveal new details about the 5.3-million-year-old flood, which triggered earthquakes, generated tropical-storm force winds, and created a waterfall 30 times taller than Niagara.
What's Going on Inside Io, Jupiter's Volcanic Moon? (quantamagazine.org)
Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about geologically active moons.
Rare earth elements: Occurrences, global distribution, geology, etc. (sciencedirect.com)
Rare earth elements (REEs) including fifteen lanthanides, yttrium and scandium are found in more than 250 minerals, worldwide.
'Breathing' magma cap discovered less than 4km under Yellowstone National Park (news.sky.com)
A "breathing" cap of magma is stopping one of the largest active volcanic systems in the world from exploding in the US, scientists have discovered.
Scientists stumble across rare evidence that Earth peeling under Sierra Nevada (cnn.com)
Curiosity rover finds large carbonate deposits on Mars (phys.org)
Research from NASA's Curiosity rover has found evidence of a carbon cycle on ancient Mars, bringing scientists closer to an answer on whether the red planet was ever capable of supporting life.
Scientists discover drier mantle on moon's farside (phys.org)
Chinese scientists have discovered that the moon's mantle contains less water on the lunar farside than on the nearside, based on analysis of basalts collected by the Chang'e-6 (CE6) lunar mission.
North America Is Dripping from Below, Geoscientists Discover (jsg.utexas.edu)
Researchers have discovered that the underside of the North American continent is dripping away in blobs of rock — and that the remnants of a tectonic plate sinking in the Earth’s mantle may be the reason why.
Orphan tsunami of 1700–Japanese clues to a parent earthquake in America (2015) (usgs.gov)
A puzzling tsunami entered Japanese history in January 1700. Samurai, merchants, and villagers wrote of minor flooding and damage. Some noted that no parent earthquake had been felt; they were wondering what had set off the waves. They had no way knowing that the tsunami had been spawned during an earthquake along the coast of northwestern North America.
Desert rocks suggest unknown microorganism uses marble and limestone as a home (phys.org)
In the desert areas of Namibia, Oman, and Saudi Arabia, research work has revealed unusual structures that are probably due to the activity of an unknown microbiological life form.
Unknown microorganisms used marble and limestone as a habitat (sciencedaily.com)
In the desert areas of Namibia, Oman, and Saudi Arabia, research work has revealed unusual structures that are probably due to the activity of an unknown microbiological life form.
1700 Cascadia Earthquake (wikipedia.org)
The 1700 Cascadia earthquake occurred along the Cascadia subduction zone on January 26, 1700, with an estimated moment magnitude of 8.7–9.2.
Likelihood of Mount Spurr eruption in next few weeks or months has increased (avo.alaska.edu)
Los Chocoyos eruption dated to 79,500ya show Earth bounced back within decades (phys.org)
An international team of Earth and life scientists, hydrologists, chemists, and physicists, has found evidence showing that the Los Chocoyos supereruption occurred approximately 79,500 years ago and that the planet bounced back from its chilling effects within decades.
Forces deep underground seem to be deforming Earth's inner core (newscientist.com)
Earth’s solid inner core appears to have changed shape in the past 20 years or so, according to seismic wave measurements – but the behaviour of these waves could also be explained by other shifts at the centre of the planet.
Geothermal power is a climate moon shot beneath our feet (newyorker.com)
North Milford Valley, in western Utah, is home to dormant volcanoes, subterranean lava deposits, and smatterings of obsidian—black volcanic glass—that Paiute peoples once collected for arrowheads and jewelry. Scalding groundwater still bubbles to the surface in places. In such a landscape, you remember that the planet’s hard exterior, where we spend our entire lives, is so thin that we call it a crust. Its superheated interior, meanwhile, burns with an estimated forty-four trillion watts of power.
Bifurcation: The secret giant islands formed when rivers split (starkeycomics.com)
As I’m sure you’re aware, rivers usually combine together to make larger and larger rivers until they reach the sea. However, there are some exceptions: rivers do sometimes split up and flow in separate directions.
Have we been wrong about why Mars is red? (esa.int)
The Red Planet’s iconic rusty dust has a much wetter history than previously assumed, find scientists combining European Space Agency (ESA) and NASA spacecraft data with new laboratory experiments on replica Mars dust. The results suggest that Mars rusted early in the planet’s ancient past, when liquid water was more widespread.
Curiosity Mars rover discovers evidence of ripples from ancient Red Planet lake (space.com)
NASA rover discovers liquid water 'ripples' carved into Mars rock (livescience.com)
Surprise Magma Chamber Growing Under Mediterranean Volcano (2023) (news.agu.org)
WASHINGTON — Using a novel imaging technique for volcanoes that produces high-resolution pictures  of seismic wave properties, a new study reveals a large, previously undetected body of mobile magma underneath Kolumbo, an active submarine volcano near Santorini, Greece.
Earth's inner core may have changed shape, say scientists (bbc.co.uk)
The inner core of Earth may have changed shape in the past 20 years, according to a group of scientists.
Large magma bodies found beneath dormant volcanoes (phys.org)
New Cornell University led-research challenges the long-standing belief that active volcanoes have large magma bodies that are expelled during eruptions and then dissipate over time as the volcanoes become dormant.
Why gold loves arsenic (2021) (mining.com)
An international team of geochemists discovered why gold is concentrated alongside arsenic, a phenomenon that explains the formation of most deposits of the precious metal.
Two Grand Canyon-size valleys on far side of the moon formed within 10 minutes (cnn.com)
A coastal California community is sliding 4 inches a week toward the ocean (sfgate.com)
Residents in scenic communities along the coast of Southern California have known for years that the Palos Verdes Peninsula is prone to landslides, but new research from NASA reveals a startling speed at which the Los Angeles subregion is shifting into the sea.