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#geologic — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #geologic, aggregated by home.social.

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  1. Timing And Style Of Tectonic Assembly And Exhumation Of The Mchugh Complex Within The Chugach-Kodiak Accretionary Wedge, Alaska
    --
    doi.org/10.1029/2025TC009004 <-- shared paper
    --
    discoveryalert.com.au/chugach- <-- shared technical article
    --
    [this paper is WAY over my head in terms of the nuance of structural geology, but still fascinating; further, I have to say: these are TRULY gorgeous, well-designed & presented, and useful geologic maps, cross-sections, annotated photographs and other visualisations (I am jealous of that level of skill, in the BEST of ways!)]
    #geology #structuralgeology #fieldwork #geologic #mapping #KenaiPeninsula #McHughComplex #tectonics #underplating #faulting #subduction #erosion #Exhumation #ChugachKodiak #AccretionaryWedge #Alaska #coast #coastal #mineralogy #transects #crosssections #model #modeling #sampling #spectroscopy #accretionary #accretionarymargin #plateboundary #trench #interpretation #peneplanation #forearc

  2. Timing And Style Of Tectonic Assembly And Exhumation Of The Mchugh Complex Within The Chugach-Kodiak Accretionary Wedge, Alaska
    --
    doi.org/10.1029/2025TC009004 <-- shared paper
    --
    discoveryalert.com.au/chugach- <-- shared technical article
    --
    [this paper is WAY over my head in terms of the nuance of structural geology, but still fascinating; further, I have to say: these are TRULY gorgeous, well-designed & presented, and useful geologic maps, cross-sections, annotated photographs and other visualisations (I am jealous of that level of skill, in the BEST of ways!)]

  3. #KnowledgeByte: #Geologic #Hydrogen is a naturally occurring gas found in the Earth's crust that can be indicated by "#Fairy #Circles," which are circular, barren depressions in the landscape.

    These circles may form when underground hydrogen gas pressure causes the land to rise and then sink, creating a surface depression.

    knowledgezone.co.in/posts/Geol

  4. #KnowledgeByte: #Geologic #Hydrogen is a naturally occurring gas found in the Earth's crust that can be indicated by "#Fairy #Circles," which are circular, barren depressions in the landscape.

    These circles may form when underground hydrogen gas pressure causes the land to rise and then sink, creating a surface depression.

    knowledgezone.co.in/posts/Geol

  5. #KnowledgeByte: #Geologic #Hydrogen is naturally occurring hydrogen gas found within the Earth's subsurface, offering a potentially vast, low-carbon energy source.

    Unlike industrial hydrogen production, which can have a high carbon footprint, geologic hydrogen is generated and stored naturally within rock formations, similar to oil and natural gas.

    knowledgezone.co.in/posts/Geol

  6. #KnowledgeByte: #Geologic #Hydrogen is naturally occurring hydrogen gas found within the Earth's subsurface, offering a potentially vast, low-carbon energy source.

    Unlike industrial hydrogen production, which can have a high carbon footprint, geologic hydrogen is generated and stored naturally within rock formations, similar to oil and natural gas.

    knowledgezone.co.in/posts/Geol

  7. The thing about #borders humans mostly forget is that, in terms of human timescales, they are all only temporary, always changing, and in terms of #geologic timescales, they have never existed at all.

    #humanity #geology

  8. The thing about #borders humans mostly forget is that, in terms of human timescales, they are all only temporary, always changing, and in terms of #geologic timescales, they have never existed at all.

    #humanity #geology

  9. Environmental Impacts of #Geothermal Energy

    Published Mar 5, 2013
    Union of Concerned Scientists

    "The most widely developed type of geothermal power plant (known as #hydrothermal plants) are located near #geologic#HotSpots” where hot molten rock is close to the earth’s crust and produces hot water. In other regions enhanced geothermal systems (or hot dry rock geothermal), which involve drilling into Earth’s surface to reach deeper geothermal resources, can allow broader access to geothermal energy."

    [...]

    "Some geothermal plants also produce small amounts of #mercury emissions, which must be mitigated using mercury filter technology. Scrubbers can reduce air emissions, but they produce a watery #sludge composed of the captured materials, including #sulfur, #vanadium, #silica compounds, chlorides, #arsenic, mercury, #nickel, and other heavy metals. This #ToxicSludge often must be disposed of at hazardous waste sites."

    [...]

    "Land #subsidence, a phenomenon in which the land surface sinks, is sometimes caused by the removal of water from geothermal reservoirs. Most geothermal facilities address this risk by re-injecting wastewater back into geothermal reservoirs after the water’s heat has been captured.

    "Hydrothermal plants are sited on geological “hot spots," which tend to have higher levels of #earthquake risk. There is evidence that hydrothermal plants can lead to an even greater earthquake frequency. Enhanced geothermal systems (hot dry rock) can also increase the risk of small earthquakes. In this process, water is pumped at high pressures to fracture underground hot rock reservoirs similar to technology used in natural gas hydraulic #fracturing. (See How Natural Gas Works for more information.) Earthquake risk associated with enhanced geothermal systems can be minimized by siting plants an appropriate distance away from major fault lines. When a geothermal system is sited near a heavily populated area, constant monitoring and transparent communication with local communities is also necessary."

    ucsusa.org/resources/environme

    #Fracking #GeothermalEnergy #ThinkBeforeDrilling

  10. Environmental Impacts of #Geothermal Energy

    Published Mar 5, 2013
    Union of Concerned Scientists

    "The most widely developed type of geothermal power plant (known as #hydrothermal plants) are located near #geologic#HotSpots” where hot molten rock is close to the earth’s crust and produces hot water. In other regions enhanced geothermal systems (or hot dry rock geothermal), which involve drilling into Earth’s surface to reach deeper geothermal resources, can allow broader access to geothermal energy."

    [...]

    "Some geothermal plants also produce small amounts of #mercury emissions, which must be mitigated using mercury filter technology. Scrubbers can reduce air emissions, but they produce a watery #sludge composed of the captured materials, including #sulfur, #vanadium, #silica compounds, chlorides, #arsenic, mercury, #nickel, and other heavy metals. This #ToxicSludge often must be disposed of at hazardous waste sites."

    [...]

    "Land #subsidence, a phenomenon in which the land surface sinks, is sometimes caused by the removal of water from geothermal reservoirs. Most geothermal facilities address this risk by re-injecting wastewater back into geothermal reservoirs after the water’s heat has been captured.

    "Hydrothermal plants are sited on geological “hot spots," which tend to have higher levels of #earthquake risk. There is evidence that hydrothermal plants can lead to an even greater earthquake frequency. Enhanced geothermal systems (hot dry rock) can also increase the risk of small earthquakes. In this process, water is pumped at high pressures to fracture underground hot rock reservoirs similar to technology used in natural gas hydraulic #fracturing. (See How Natural Gas Works for more information.) Earthquake risk associated with enhanced geothermal systems can be minimized by siting plants an appropriate distance away from major fault lines. When a geothermal system is sited near a heavily populated area, constant monitoring and transparent communication with local communities is also necessary."

    ucsusa.org/resources/environme

    #Fracking #GeothermalEnergy #ThinkBeforeDrilling

  11. The Solar System May Have Passed Through Dense Interstellar Clouds 2 Million Years Ago, Altering Earth’s Climate
    --
    eurekalert.org/news-releases/1 <-- AAAS press release
    --
    doi.org/10.1038/s41550-024-022 <-- shared paper
    --
    “Astrophysicists calculate the likelihood that Earth was exposed to cold, harsh interstellar clouds, a phenomenon not previously considered in geologic climate models…"
    #GIS #spatial #mapping #interstellar #clouds #astrophysics #climate #climatechange #atmosphere #geologic #paleoclimate #paleoclimatology #cold #iceage #solarwind #plasmashield #heliosphere #radiation #galacticrays #DNA #model #modeling #interstallarmedium #spacephysics #atmosphericchemistry #solarsystem #spaceweather

  12. The Solar System May Have Passed Through Dense Interstellar Clouds 2 Million Years Ago, Altering Earth’s Climate
    --
    eurekalert.org/news-releases/1 <-- AAAS press release
    --
    doi.org/10.1038/s41550-024-022 <-- shared paper
    --
    “Astrophysicists calculate the likelihood that Earth was exposed to cold, harsh interstellar clouds, a phenomenon not previously considered in geologic climate models…"

  13. Naturally occurring underground pockets of pure hydrogen are generating attention as a potentially unlimited source of carbon-free power.
 
One interested party is the U.S. Department of Energy, which last month awarded $20 million in research grants to 18 teams from laboratories, universities, and private companies to develop technologies that can lead to cheap, clean fuel from the subsurface.
 
#Geologic #hydrogen, as it’s known, is produced when water reacts with iron-rich rocks, causing the iron to oxidize. 
 
The U.S. Geological Survey estimates there are potentially billions of tons of geologic hydrogen buried in the Earth’s crust.
    Accumulations have been discovered worldwide, and a slew of startups are searching for extractable deposits.
    One of the grant recipients, MIT Assistant Professor Iwnetim Abate’s research group, will use its $1.3 million grant to determine the ideal conditions for producing hydrogen underground
    — considering factors such as catalysts to initiate the chemical reaction, temperature, pressure, and pH levels.
    The goal is to improve efficiency for large-scale production, meeting global energy needs at a competitive cost.
    Abate is looking to jump-start the natural hydrogen production process, implementing “proactive” approaches that involve stimulating production and harvesting the gas.
    news.mit.edu/2024/iwnetim-abat

  14. Naturally occurring underground pockets of pure hydrogen are generating attention as a potentially unlimited source of carbon-free power.
 
One interested party is the U.S. Department of Energy, which last month awarded $20 million in research grants to 18 teams from laboratories, universities, and private companies to develop technologies that can lead to cheap, clean fuel from the subsurface.
 
#Geologic #hydrogen, as it’s known, is produced when water reacts with iron-rich rocks, causing the iron to oxidize. 
 
The U.S. Geological Survey estimates there are potentially billions of tons of geologic hydrogen buried in the Earth’s crust.
    Accumulations have been discovered worldwide, and a slew of startups are searching for extractable deposits.
    One of the grant recipients, MIT Assistant Professor Iwnetim Abate’s research group, will use its $1.3 million grant to determine the ideal conditions for producing hydrogen underground
    — considering factors such as catalysts to initiate the chemical reaction, temperature, pressure, and pH levels.
    The goal is to improve efficiency for large-scale production, meeting global energy needs at a competitive cost.
    Abate is looking to jump-start the natural hydrogen production process, implementing “proactive” approaches that involve stimulating production and harvesting the gas.
    news.mit.edu/2024/iwnetim-abat

  15. Are you an early career professional, spatial, geologist, looking for a role?
    --
    usajobs.gov/job/780738500 <-- link to posting description on USA Jobs
    --
    I saw this advertised and thought it might be of interest... note that this is a term position & open to the public
    #gis #spatial #mapping #geology #geologic #risk #hazard #usgs #job #jobopportunity #jobsearch #hiringnow #nowhiring #jobs #jobhunt #jobposting #recruiting #careers #hiring #jobsearching #needajob #jobposting #hirefriday #geologist #gischat
    @usgs

  16. Are you an early career professional, spatial, geologist, looking for a role?
    --
    usajobs.gov/job/780738500 <-- link to posting description on USA Jobs
    --
    I saw this advertised and thought it might be of interest... note that this is a term position & open to the public

    @usgs

  17. Scientists suggest that despite not officially entering the #Anthropocene, our impact on the planet will be etched in history. The diverse imprints left by #humans on #nature over a vast timeframe pose a challenge for #geological classification. The intricate web of influences we have exerted on the environment defies a singular starting point for this new #epoch.
    nytimes.com/2024/03/05/climate No Paywall: archive.ph/V9RNT #humankind #geologic #climate

  18. Scientists suggest that despite not officially entering the #Anthropocene, our impact on the planet will be etched in history. The diverse imprints left by #humans on #nature over a vast timeframe pose a challenge for #geological classification. The intricate web of influences we have exerted on the environment defies a singular starting point for this new #epoch.
    nytimes.com/2024/03/05/climate No Paywall: archive.ph/V9RNT #humankind #geologic #climate

  19. A vast, flat, "featureless" plain on #Mars surprised researchers by revealing a much more tumultuous #geologic past than expected, according to a study led by researchers at the University of Arizona. Enormous amounts of #lava have erupted from numerous fissures as recently as one million years ago
    #SpaceScience #sflorg
    sflorg.com/2023/12/sn12182301.

  20. A vast, flat, "featureless" plain on #Mars surprised researchers by revealing a much more tumultuous #geologic past than expected, according to a study led by researchers at the University of Arizona. Enormous amounts of #lava have erupted from numerous fissures as recently as one million years ago
    #SpaceScience #sflorg
    sflorg.com/2023/12/sn12182301.

  21. At Chancet Rocks Reserve you can span the Cretaceous–Paleogene (K–Pg) boundary, marking a mass extinction. It’s a dark grey band of ~20cm limestone + 2cm iridium-rich clay; this might be it (📷1)? Said to sit btw light pink/ K & green/ Pg limestone—but seemingly not here (📷2)! A #geologic jumble in need of a “Made in Paleogene” mark! The animal that created large trace fossil burrows (paramoudra) “above” K–Pg not known to science (📷3&4). Watch for 🦭!

    🚐 #VanLife #Travel #RoadTrip #Nomad 🇳🇿 #NZ

  22. At Chancet Rocks Reserve you can span the Cretaceous–Paleogene (K–Pg) boundary, marking a mass extinction. It’s a dark grey band of ~20cm limestone + 2cm iridium-rich clay; this might be it (📷1)? Said to sit btw light pink/ K & green/ Pg limestone—but seemingly not here (📷2)! A #geologic jumble in need of a “Made in Paleogene” mark! The animal that created large trace fossil burrows (paramoudra) “above” K–Pg not known to science (📷3&4). Watch for 🦭!

    🚐 #VanLife #Travel #RoadTrip #Nomad 🇳🇿 #NZ

  23. This #video taught me that 100 years ago, #science had no idea there were other #galaxies beyond our own 🤯

    Already knowing how much of our current knowledge of everything is still brand new (in #human, #geologic, and #astronomical terms), and under regular revision, is what makes me eye roll at almost every assertion in literally any science that any one concept is absolutely true and fundamentally unchanging.

    youtu.be/I9q-7GPQr1Y

  24. This #video taught me that 100 years ago, #science had no idea there were other #galaxies beyond our own 🤯

    Already knowing how much of our current knowledge of everything is still brand new (in #human, #geologic, and #astronomical terms), and under regular revision, is what makes me eye roll at almost every assertion in literally any science that any one concept is absolutely true and fundamentally unchanging.

    youtu.be/I9q-7GPQr1Y

  25. What’s on deck this morning? A #HiRise image of amazing folded #geologic rock formations on #Mars! I have five 8x8” paintings to do by Labor Day for the Central Art Gallery Square Show, so they might as well be space (or abstract depending on the viewer. 😂)

    #inprogress #inprogressart #wip #SpaceArt #SpaceArtist #AstroArt #SciArt #watercolor #watercolour #watercolorArt #CosmicArt #Geology #ArtistAtWork #MastoArt #MastoArtists #FediArt #BuyIntoArt #AYearForArt #ArtMatters #ArtistsOfMastodon

  26. What’s on deck this morning? A #HiRise image of amazing folded #geologic rock formations on #Mars! I have five 8x8” paintings to do by Labor Day for the Central Art Gallery Square Show, so they might as well be space (or abstract depending on the viewer. 😂)

    #inprogress #inprogressart #wip #SpaceArt #SpaceArtist #AstroArt #SciArt #watercolor #watercolour #watercolorArt #CosmicArt #Geology #ArtistAtWork #MastoArt #MastoArtists #FediArt #BuyIntoArt #AYearForArt #ArtMatters #ArtistsOfMastodon

  27. More evidence that our collective thinking is too narrow and shallow causing us to mistakenly believe in #human #supremacy in #intelligence, #sentience, #consciousness, and #communication over all other things on #Earth.

    What makes people, and #science in general, believe we can #communicate with #entities from other #worlds when we can't even recognize the traits of, and communicate with, our fellow #terrestrials in the #animal, #plant, and #fungal (#geologic?) worlds?

    nautil.us/what-plants-are-sayi

  28. More evidence that our collective thinking is too narrow and shallow causing us to mistakenly believe in #human #supremacy in #intelligence, #sentience, #consciousness, and #communication over all other things on #Earth.

    What makes people, and #science in general, believe we can #communicate with #entities from other #worlds when we can't even recognize the traits of, and communicate with, our fellow #terrestrials in the #animal, #plant, and #fungal (#geologic?) worlds?

    nautil.us/what-plants-are-sayi