Hacker News with Generative AI: Geology

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.
Tsunami, Earthquakes, History, Geology, North America
48 points by Tomte 7 days ago | 13 comments
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.
Microbiology, Geology, Desert Environments, Science
6 points by wglb 10 days ago | 1 comments
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.
Microbiology, Geology, Desert Environments, Scientific Discovery
17 points by docmechanic 14 days ago | 1 comments
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.
Earthquakes, Natural Disasters, Geology, History, Pacific Northwest
31 points by oliverkwebb 20 days ago | 2 comments
Likelihood of Mount Spurr eruption in next few weeks or months has increased (avo.alaska.edu)
Volcanoes, Alaska, Geology, Natural Disasters
5 points by dangle1 22 days ago | 0 comments
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.
Volcanoes, Earth Science, Climate Change, Geology, Paleontology
3 points by gmays 27 days ago | 2 comments
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.
Earth Science, Geology, Inner Core, Seismic Activity
52 points by walterbell 29 days ago | 21 comments
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.
Geothermal Energy, Climate Change, Renewable Energy, Geology, Utah
297 points by pseudolus 32 days ago | 302 comments
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.
Geography, Rivers, Geology
118 points by webstrand 36 days ago | 35 comments
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.
Space Exploration, Mars, Geology, Science
45 points by rntn 37 days ago | 9 comments
Curiosity Mars rover discovers evidence of ripples from ancient Red Planet lake (space.com)
Space Exploration, Mars, Geology, Astronomy
54 points by speckx 42 days ago | 9 comments
NASA rover discovers liquid water 'ripples' carved into Mars rock (livescience.com)
Mars, Space Exploration, Science, Geology, Water
79 points by Brajeshwar 44 days ago | 27 comments
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.
Volcanoes, Geology, Mediterranean Sea, Greece, Science
47 points by jandrewrogers 51 days ago | 19 comments
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.
Earth Science, Geology, Research, Inner Core, Planet Earth
52 points by neversaydie 52 days ago | 36 comments
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.
Volcanoes, Geology, Science, Research
101 points by PaulHoule 53 days ago | 29 comments
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.
Geology, Mining, Chemistry, Gold
52 points by DoreenMichele 55 days ago | 27 comments
Two Grand Canyon-size valleys on far side of the moon formed within 10 minutes (cnn.com)
Space Exploration, Geology, Moon
91 points by pseudolus 55 days ago | 73 comments
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.
California, Coastline, Climate Change, Geology, Natural Disasters
12 points by harambae 58 days ago | 1 comments
Natural fission reactors in the Franceville basin, Gabon (sciencedirect.com)
Natural nuclear fission reactors are only known in two uranium deposits in the world, the Oklo and Bangombé deposits of the Franceville basin: Gabon.
Nuclear Physics, Geology, Gabon, Science, Uranium
68 points by nickcotter 62 days ago | 20 comments
The Most Active Volcano in the Northeast Pacific Is Preparing to Erupt (sciencealert.com)
Earth bubbles and broils beneath an underwater peak called Axial Seamount, located 480 kilometers (300 miles) off Oregon's coast, causing it to swell in changing patterns that hint at impending strife.
Volcanoes, Geology, Pacific Ocean, Science
9 points by smitty1e 64 days ago | 1 comments
Evidence suggests megaflood refilled the Mediterranean Sea 5M years ago (southampton.ac.uk)
A new study provides compelling new evidence that a colossal ‘megaflood’ refilled the Mediterranean Sea, ending a period during which the Med was a vast expanse of salt flats.
Geology, Science, Climate Change, Mediterranean Sea
13 points by geox 70 days ago | 0 comments
3,600-Foot-Tall Undersea Volcano Expected to Blow This Year but Nobody's Worried (cowboystatedaily.com)
Nearly 300 miles off the coast of Oregon, a massive volcano is showing signs of an imminent eruption.  The 3,600-foot-tall, 1.24-mile-wide Axial Seamount is swelling and rumbling at the bottom of the Pacific Ocean.
Volcanoes, Natural Disasters, Geology, Oceanography, Pacific Northwest
6 points by LinuxBender 74 days ago | 2 comments
Groundwater Movement (Interactive) (concord.org)
Use the buttons and sliders below to explore permeability of each layer and how water moves through the layers. Follow a water drop. Where do aquifers form? Drill wells and explore which type of well is sustainable and which isn't.
Groundwater, Interactive, Science, Environmental Science, Geology
88 points by jdwg 78 days ago | 6 comments
Why did a frozen Earth coincide with an evolutionary spurt? (colorado.edu)
CU Boulder geologists Lizzy Trower and Carl Simpson win $1 million in support from W.M. Keck Foundation to try to solve an evolutionary puzzle and to extend Earth’s temperature record by 2 billion years
Earth Science, Evolution, Geology, Research Funding
4 points by isaacfrond 81 days ago | 3 comments
Roaming Rocks (aeon.co)
As geological sites go, this one is easy to miss. It’s just a low rise of exposed rock along a back road in northern Wisconsin, outside a town whose one claim to fame is a tavern that the gangster John Dillinger used as a hideout in the 1930s.
Geology, Wisconsin, History
40 points by Vigier 98 days ago | 5 comments
Thermodynamic model identifies how gold reaches Earth's surface (phys.org)
A research team including a University of Michigan scientist has discovered a new gold-sulfur complex that helps researchers understand how gold deposits are formed.
Geology, Chemistry, Gold, Earth Science, Scientific Research
70 points by wglb 98 days ago | 8 comments
Gondwanaland: The search for a land before (human) time (australiangeographic.com.au)
The Gondwana supercontinent broke up millions of years ago. Now, researchers are piecing it back together again.
Geology, Paleontology, Supercontinents, Australia
63 points by bryanrasmussen 98 days ago | 46 comments
Earth's subsurface may hold up to 5.6 × 10⁶ million metric tons of hydrogen (phys.org)
A pair of geologists with the U.S. Geological Survey, Denver, has created a model that shows Earth's subsurface may hold up to 5.6 × 106 million metric tons of natural hydrogen.
Earth Science, Geology, Natural Resources
57 points by wglb 101 days ago | 71 comments
Exploring an undersea terrain sculpted by glaciers and volcanoes (arstechnica.com)
On May 2, 2008, the Chaitén volcano in Chile awoke with unexpected fury after more than 9,000 years of dormancy.
Volcanoes, Geology, Geography, Chile
17 points by pseudolus 104 days ago | 0 comments
The Bering Land Bridge was more like a swamp (gizmodo.com)
During the last Ice Age, modern-day Siberia and Alaska were connected by a landmass that allowed animals—and ancient humans—to migrate across what is now the Bering Sea.
Paleontology, Geology, History, Archaeology
60 points by bikenaga 108 days ago | 29 comments