#geophysics — Public Fediverse posts

🚨Job Alert ‼️🚨 Actually, three (3) openings:
1) Adjunct Prof with industry experience in economic #geology and ore systems science
2) Lecturer, Sr Lecturer, or Assoc Prof, hydrogeology, geometallurgy, etc
3) Computational #geophysics
https://www.wits.ac.za/vacancies/
Univ Witwatersrand, S Africa
🧪⚒️

🚨Job Alert ‼️🚨 Actually, three (3) openings:
1) Adjunct Prof with industry experience in economic #geology and ore systems science
2) Lecturer, Sr Lecturer, or Assoc Prof, hydrogeology, geometallurgy, etc
3) Computational #geophysics
https://www.wits.ac.za/vacancies/
Univ Witwatersrand, S Africa
🧪⚒️

Múlajökull

Iceland’s Múlajökull glacier is prone to sudden surges, where rapid ice flow is interspersed between periods of quiescence or retreat. The isolated nature of the glacier and its marshy surroundings make approaching on foot almost impossible, but photographer Dani Guindo captured gorgeous aerial images of the glacier’s many rivulets ribboning about the landscape it’s carved. (Image credit: D. Guindo; via Colossal)

Múlajökull

Iceland’s Múlajökull glacier is prone to sudden surges, where rapid ice flow is interspersed between periods of quiescence or retreat. The isolated nature of the glacier and its marshy surroundings make approaching on foot almost impossible, but photographer Dani Guindo captured gorgeous aerial images of the glacier’s many rivulets ribboning about the landscape it’s carved. (Image credit: D. Guindo; via Colossal)

Múlajökull

Iceland’s Múlajökull glacier is prone to sudden surges, where rapid ice flow is interspersed between periods of quiescence or retreat. The isolated nature of the glacier and its marshy surroundings make approaching on foot almost impossible, but photographer Dani Guindo captured gorgeous aerial images of the glacier’s many rivulets ribboning about the landscape it’s carved. (Image credit: D. Guindo; via Colossal)

Múlajökull

Iceland’s Múlajökull glacier is prone to sudden surges, where rapid ice flow is interspersed between periods of quiescence or retreat. The isolated nature of the glacier and its marshy surroundings make approaching on foot almost impossible, but photographer Dani Guindo captured gorgeous aerial images of the glacier’s many rivulets ribboning about the landscape it’s carved. (Image credit: D. Guindo; via Colossal)

Múlajökull

Iceland’s Múlajökull glacier is prone to sudden surges, where rapid ice flow is interspersed between periods of quiescence or retreat. The isolated nature of the glacier and its marshy surroundings make approaching on foot almost impossible, but photographer Dani Guindo captured gorgeous aerial images of the glacier’s many rivulets ribboning about the landscape it’s carved. (Image credit: D. Guindo; via Colossal)

Convection Inside the Mantle

Most of what we know about Earth’s interior comes from observing how seismic waves–mostly from earthquakes–bounce around. As our observations have gotten better–more seisometers, better imaging techniques–scientists have identified two large anomalies sitting near the bottom of the mantle. Known as large low-velocity provinces, or LLVPs, these zones take up continent-sized areas beneath parts of Africa and the Pacific.

The LLVPs are hot, which would normally make them buoyant, but their stationary nature suggests they are made up of extremely dense material. Narrow plumes of hot material make their way up from the LLVPs to form volcanic hotspots like those that made the Hawaiian and Galapagos Islands. Balancing that upward convection is the downward convection of former tectonic material carried into the mantle at subduction zones.

What the LLVPs are made of remains an active research question. One suggestion is that they contain remnants of Theia, the planet thought to have impacted the proto-Earth to form our Moon. (Image credits: E. Garnero and C. Richardson; see also Physics Today)

Convection Inside the Mantle

Most of what we know about Earth’s interior comes from observing how seismic waves–mostly from earthquakes–bounce around. As our observations have gotten better–more seisometers, better imaging techniques–scientists have identified two large anomalies sitting near the bottom of the mantle. Known as large low-velocity provinces, or LLVPs, these zones take up continent-sized areas beneath parts of Africa and the Pacific.

The LLVPs are hot, which would normally make them buoyant, but their stationary nature suggests they are made up of extremely dense material. Narrow plumes of hot material make their way up from the LLVPs to form volcanic hotspots like those that made the Hawaiian and Galapagos Islands. Balancing that upward convection is the downward convection of former tectonic material carried into the mantle at subduction zones.

What the LLVPs are made of remains an active research question. One suggestion is that they contain remnants of Theia, the planet thought to have impacted the proto-Earth to form our Moon. (Image credits: E. Garnero and C. Richardson; see also Physics Today)

European summer drying largely driven by atmospheric circulation changes since the 1980s

Bevacqua, E. et al. Direct and lagged climate change effects intensified the 2022 European drought. Nat. Geosci. https://doi.org/10.1038/s41561-024-01559-2…
#Europe #EU #Atmosphericdynamics #Attribution #earthsciences #EarthSystemSciences #general #Geochemistry #geology #Geophysics/Geodesy #Hydrology
https://www.europesays.com/europe/100574/

Geophysics is the scientific study of the Earth and its surrounding space environment using the quantitative methods of physics.
#Geophysics #EarthScience #sflorg
https://www.sflorg.com/2026/07/cat07202601.html

Geophysics is the scientific study of the Earth and its surrounding space environment using the quantitative methods of physics.
#Geophysics #EarthScience #sflorg
https://www.sflorg.com/2026/07/cat07202601.html

Geophysics is the scientific study of the Earth and its surrounding space environment using the quantitative methods of physics.
#Geophysics #EarthScience #sflorg
https://www.sflorg.com/2026/07/cat07202601.html

Geophysics is the scientific study of the Earth and its surrounding space environment using the quantitative methods of physics.
#Geophysics #EarthScience #sflorg
https://www.sflorg.com/2026/07/cat07202601.html

Geophysics is the scientific study of the Earth and its surrounding space environment using the quantitative methods of physics.
#Geophysics #EarthScience #sflorg
https://www.sflorg.com/2026/07/cat07202601.html

February 24, 2026 Kyoto University scientists propose a theoretical link between solar flares and earthquakes: ionosphere charge shifts could create electrostatic pressure inside fractured fault zones 🌌⚡️🌍. The model doesn’t predict quakes—explores a possible mechanism. https://www.sciencedaily.com/releases/2026/02/260224023209.htm #SpaceWeather #Earthquakes #Geophysics

February 24, 2026 Kyoto University scientists propose a theoretical link between solar flares and earthquakes: ionosphere charge shifts could create electrostatic pressure inside fractured fault zones 🌌⚡️🌍. The model doesn’t predict quakes—explores a possible mechanism. https://www.sciencedaily.com/releases/2026/02/260224023209.htm #SpaceWeather #Earthquakes #Geophysics

Mirabilite Mounds at Great Salt Lake

In cold weather, a new geological feature has shown up at Utah’s Great Salt Lake in the last decade. These salty mirabilite mounds form terraced crystals that resemble Yellowstone’s Mammoth Hot Springs.

Mirabilite is hydrated sodium sulfate (as opposed to the sodium chloride of table salt). The structures form when upwelling spring water partially dissolves the layer of mirabilite found beneath the lake bed. That sulfate-laden water rises to the surface, where it freezes into the crystals seen here.

When temperatures rise above freezing, the water in the mirabilite evaporates, leaving behind white, powdery thenardite. (Video credit: Great Salt Lake Institute; image credit: Utah Geological Survey)

Mirabilite Mounds at Great Salt Lake

In cold weather, a new geological feature has shown up at Utah’s Great Salt Lake in the last decade. These salty mirabilite mounds form terraced crystals that resemble Yellowstone’s Mammoth Hot Springs.

Mirabilite is hydrated sodium sulfate (as opposed to the sodium chloride of table salt). The structures form when upwelling spring water partially dissolves the layer of mirabilite found beneath the lake bed. That sulfate-laden water rises to the surface, where it freezes into the crystals seen here.

When temperatures rise above freezing, the water in the mirabilite evaporates, leaving behind white, powdery thenardite. (Video credit: Great Salt Lake Institute; image credit: Utah Geological Survey)

Mirabilite Mounds at Great Salt Lake

In cold weather, a new geological feature has shown up at Utah’s Great Salt Lake in the last decade. These salty mirabilite mounds form terraced crystals that resemble Yellowstone’s Mammoth Hot Springs.

Mirabilite is hydrated sodium sulfate (as opposed to the sodium chloride of table salt). The structures form when upwelling spring water partially dissolves the layer of mirabilite found beneath the lake bed. That sulfate-laden water rises to the surface, where it freezes into the crystals seen here.

When temperatures rise above freezing, the water in the mirabilite evaporates, leaving behind white, powdery thenardite. (Video credit: Great Salt Lake Institute; image credit: Utah Geological Survey)

Mirabilite Mounds at Great Salt Lake

In cold weather, a new geological feature has shown up at Utah’s Great Salt Lake in the last decade. These salty mirabilite mounds form terraced crystals that resemble Yellowstone’s Mammoth Hot Springs.

Mirabilite is hydrated sodium sulfate (as opposed to the sodium chloride of table salt). The structures form when upwelling spring water partially dissolves the layer of mirabilite found beneath the lake bed. That sulfate-laden water rises to the surface, where it freezes into the crystals seen here.

When temperatures rise above freezing, the water in the mirabilite evaporates, leaving behind white, powdery thenardite. (Video credit: Great Salt Lake Institute; image credit: Utah Geological Survey)

Mirabilite Mounds at Great Salt Lake

In cold weather, a new geological feature has shown up at Utah’s Great Salt Lake in the last decade. These salty mirabilite mounds form terraced crystals that resemble Yellowstone’s Mammoth Hot Springs.

Mirabilite is hydrated sodium sulfate (as opposed to the sodium chloride of table salt). The structures form when upwelling spring water partially dissolves the layer of mirabilite found beneath the lake bed. That sulfate-laden water rises to the surface, where it freezes into the crystals seen here.

When temperatures rise above freezing, the water in the mirabilite evaporates, leaving behind white, powdery thenardite. (Video credit: Great Salt Lake Institute; image credit: Utah Geological Survey)

The race to explore the deep ocean: four technologies transforming research

The bottom of the ocean has been mapped in much less detail than has the surface of Mars.Credit:…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Science #Geophysics #HumanitiesandSocialSciences #multidisciplinary #Oceansciences #seismology
https://www.newsbeep.com/us/764101/

The race to explore the deep ocean: four technologies transforming research

The bottom of the ocean has been mapped in much less detail than has the surface of Mars.Credit:…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Science #Geophysics #HumanitiesandSocialSciences #multidisciplinary #Oceansciences #seismology
https://www.newsbeep.com/us/764101/

In a first, scientists observe the formation of the oceanic crust

Researchers at the French National Center of Scientific Research have become the first to observe the formation of…
#NewsBeep #News #Environment #AU #Australia #faults #FrenchNationalCenterofScientificResearch #Geophysics #Hydro-AcousticsandGeodesynearAmsterdamIsland #lava #oceanfloor #quantumevents #Ridge #SaintPaul-Amsterdamvolcanicplateau #Science #seafloor #SoutheastIndianRidge
https://www.newsbeep.com/au/792295/

In a first, scientists observe the formation of the oceanic crust

Researchers at the French National Center of Scientific Research have become the first to observe the formation of…
#NewsBeep #News #Environment #AU #Australia #faults #FrenchNationalCenterofScientificResearch #Geophysics #Hydro-AcousticsandGeodesynearAmsterdamIsland #lava #oceanfloor #quantumevents #Ridge #SaintPaul-Amsterdamvolcanicplateau #Science #seafloor #SoutheastIndianRidge
https://www.newsbeep.com/au/792295/

In a first, scientists observe the formation of the oceanic crust

Researchers at the French National Center of Scientific Research have become the first to observe the formatio…
#NewsBeep #News #Environment #environment #faults #FrenchNationalCenterofScientificResearch #Geophysics #Hydro-AcousticsandGeodesynearAmsterdamIsland #lava #oceanfloor #quantumevents #ridge #SaintPaul-Amsterdamvolcanicplateau #Science #seafloor #SoutheastIndianRidge #UK #UnitedKingdom
https://www.newsbeep.com/uk/684951/

https://www.europesays.com/ie/579208/ In a first, scientists observe the formation of the oceanic crust #Éire #Environment #faults #FrenchNationalCenterOfScientificResearch #geophysics #HydroAcousticsAndGeodesyNearAmsterdamIsland #IE #Ireland #LAVA #OceanFloor #QuantumEvents #ridge #SaintPaulAmsterdamVolcanicPlateau #Science #seafloor #SoutheastIndianRidge

https://www.europesays.com/uk/1079878/ Ocean floor witnessed splitting apart for the first time — releasing lava #geophysics #HumanitiesAndSocialSciences #multidisciplinary #OceanSciences #Science #Seismology #UK #UnitedKingdom

https://www.europesays.com/africa/324439/ Metatek to survey 210,000 km² in Nigeria under new exploration contract #AirborneGeophysicalSurvey #AirborneSurvey #Broadlink #eFTG #Exploration #ExplorationTechnology #FullTensorGravityGradiometry #GeologicalMapping #geophysics #GravityGradiometry #GravitySurvey #HydrocarbonExploration #LiDAR #MagneticSurvey #Metatek #Nigeria #NigeriaOilAndGas #UpstreamExploration #WorldOil

Anatomy of a seafloor spreading event captured by in situ seismogeodesy

Macdonald, K. C. Mid-ocean ridges: fine scale tectonic, volcanic and hydrothermal processes within the plate boundary zone. Annu.…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Science #Geodynamics #Geophysics #HumanitiesandSocialSciences #multidisciplinary #Tectonics
https://www.newsbeep.com/us/751655/

Anatomy of a seafloor spreading event captured by in situ seismogeodesy

Macdonald, K. C. Mid-ocean ridges: fine scale tectonic, volcanic and hydrothermal processes within the plate boundary zone. Annu.…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Science #Geodynamics #Geophysics #HumanitiesandSocialSciences #multidisciplinary #Tectonics
https://www.newsbeep.com/us/751655/

The Disappearing Great Salt Lake

Since 1989, Utah’s Great Salt Lake has lost some 70% of its surface area. The exposed lakebed left behind is a source of toxic dust that gets lifted into the air. Researchers are trying to understand what water sources exist beneath the lake and whether they might save the saline lake and its ecosystem from disappearing entirely.

A recent study pinpoints underground water by measuring the electrical resistance between electrodes placed meters apart in the ground (photo above). Because salty water is more electrically conductive than fresh water, the researchers can distinguish between them. So far, they’ve found quite a lot of fresh water, sometimes only a couple meters below the surface. But those patches are often quite close to saline water, too.

The group also described to Eos that they found mounds of invasive reeds lying atop concentrations of fresh water. The invasive species seems to be sucking up water that would otherwise feed back into the lake or support native plants that provide habitat to native birds. (Image credit: M. Thorne; research credit: M. Jacketta et al.; via Eos)

The Disappearing Great Salt Lake

Since 1989, Utah’s Great Salt Lake has lost some 70% of its surface area. The exposed lakebed left behind is a source of toxic dust that gets lifted into the air. Researchers are trying to understand what water sources exist beneath the lake and whether they might save the saline lake and its ecosystem from disappearing entirely.

A recent study pinpoints underground water by measuring the electrical resistance between electrodes placed meters apart in the ground (photo above). Because salty water is more electrically conductive than fresh water, the researchers can distinguish between them. So far, they’ve found quite a lot of fresh water, sometimes only a couple meters below the surface. But those patches are often quite close to saline water, too.

The group also described to Eos that they found mounds of invasive reeds lying atop concentrations of fresh water. The invasive species seems to be sucking up water that would otherwise feed back into the lake or support native plants that provide habitat to native birds. (Image credit: M. Thorne; research credit: M. Jacketta et al.; via Eos)

The Disappearing Great Salt Lake

Since 1989, Utah’s Great Salt Lake has lost some 70% of its surface area. The exposed lakebed left behind is a source of toxic dust that gets lifted into the air. Researchers are trying to understand what water sources exist beneath the lake and whether they might save the saline lake and its ecosystem from disappearing entirely.

A recent study pinpoints underground water by measuring the electrical resistance between electrodes placed meters apart in the ground (photo above). Because salty water is more electrically conductive than fresh water, the researchers can distinguish between them. So far, they’ve found quite a lot of fresh water, sometimes only a couple meters below the surface. But those patches are often quite close to saline water, too.

The group also described to Eos that they found mounds of invasive reeds lying atop concentrations of fresh water. The invasive species seems to be sucking up water that would otherwise feed back into the lake or support native plants that provide habitat to native birds. (Image credit: M. Thorne; research credit: M. Jacketta et al.; via Eos)

The Disappearing Great Salt Lake

Since 1989, Utah’s Great Salt Lake has lost some 70% of its surface area. The exposed lakebed left behind is a source of toxic dust that gets lifted into the air. Researchers are trying to understand what water sources exist beneath the lake and whether they might save the saline lake and its ecosystem from disappearing entirely.

A recent study pinpoints underground water by measuring the electrical resistance between electrodes placed meters apart in the ground (photo above). Because salty water is more electrically conductive than fresh water, the researchers can distinguish between them. So far, they’ve found quite a lot of fresh water, sometimes only a couple meters below the surface. But those patches are often quite close to saline water, too.

The group also described to Eos that they found mounds of invasive reeds lying atop concentrations of fresh water. The invasive species seems to be sucking up water that would otherwise feed back into the lake or support native plants that provide habitat to native birds. (Image credit: M. Thorne; research credit: M. Jacketta et al.; via Eos)

The Disappearing Great Salt Lake

Since 1989, Utah’s Great Salt Lake has lost some 70% of its surface area. The exposed lakebed left behind is a source of toxic dust that gets lifted into the air. Researchers are trying to understand what water sources exist beneath the lake and whether they might save the saline lake and its ecosystem from disappearing entirely.

A recent study pinpoints underground water by measuring the electrical resistance between electrodes placed meters apart in the ground (photo above). Because salty water is more electrically conductive than fresh water, the researchers can distinguish between them. So far, they’ve found quite a lot of fresh water, sometimes only a couple meters below the surface. But those patches are often quite close to saline water, too.

The group also described to Eos that they found mounds of invasive reeds lying atop concentrations of fresh water. The invasive species seems to be sucking up water that would otherwise feed back into the lake or support native plants that provide habitat to native birds. (Image credit: M. Thorne; research credit: M. Jacketta et al.; via Eos)

https://www.europesays.com/ie/571668/ Scientists Baffled by a Sudden Reversal Deep Inside Earth’s Core #EarthScience #Éire #EuropeanSpaceAgency #geophysics #IE #Ireland #MagneticFields #Science #Space #SpaceWeather

Researchers have identified a practical upper bound for material viscosity, estimated at 10³⁰±² Pa s, beyond which substances function as essentially rigid bodies over finite timescales.
#Geophysics #MineralPhysics #FluidDynamics #MaterialsScience #sflorg
https://www.sflorg.com/2026/07/phy07062601.html

Researchers have identified a practical upper bound for material viscosity, estimated at 10³⁰±² Pa s, beyond which substances function as essentially rigid bodies over finite timescales.
#Geophysics #MineralPhysics #FluidDynamics #MaterialsScience #sflorg
https://www.sflorg.com/2026/07/phy07062601.html

Researchers have identified a practical upper bound for material viscosity, estimated at 10³⁰±² Pa s, beyond which substances function as essentially rigid bodies over finite timescales.
#Geophysics #MineralPhysics #FluidDynamics #MaterialsScience #sflorg
https://www.sflorg.com/2026/07/phy07062601.html

Researchers have identified a practical upper bound for material viscosity, estimated at 10³⁰±² Pa s, beyond which substances function as essentially rigid bodies over finite timescales.
#Geophysics #MineralPhysics #FluidDynamics #MaterialsScience #sflorg
https://www.sflorg.com/2026/07/phy07062601.html

Researchers have identified a practical upper bound for material viscosity, estimated at 10³⁰±² Pa s, beyond which substances function as essentially rigid bodies over finite timescales.
#Geophysics #MineralPhysics #FluidDynamics #MaterialsScience #sflorg
https://www.sflorg.com/2026/07/phy07062601.html

✨#42 of #85ThingsAboutDIAS

The Irish National Seismic Network

The Geophysics Section of DIAS operates the Irish National Seismic Network (INSN). Established in 1980, the network monitors seismic activity across Ireland - through a series of stations. Seismic data is transmitted in real time to the INSN data centre at 5 Merrion Square and shared internationally.

#DIASdiscovers #INSN #geophysics

✨#42 of #85ThingsAboutDIAS

The Irish National Seismic Network

The Geophysics Section of DIAS operates the Irish National Seismic Network (INSN). Established in 1980, the network monitors seismic activity across Ireland - through a series of stations. Seismic data is transmitted in real time to the INSN data centre at 5 Merrion Square and shared internationally.

#DIASdiscovers #INSN #geophysics

✨#42 of #85ThingsAboutDIAS

The Irish National Seismic Network

The Geophysics Section of DIAS operates the Irish National Seismic Network (INSN). Established in 1980, the network monitors seismic activity across Ireland - through a series of stations. Seismic data is transmitted in real time to the INSN data centre at 5 Merrion Square and shared internationally.

#DIASdiscovers #INSN #geophysics

✨#42 of #85ThingsAboutDIAS

The Irish National Seismic Network

The Geophysics Section of DIAS operates the Irish National Seismic Network (INSN). Established in 1980, the network monitors seismic activity across Ireland - through a series of stations. Seismic data is transmitted in real time to the INSN data centre at 5 Merrion Square and shared internationally.

#DIASdiscovers #INSN #geophysics

✨#42 of #85ThingsAboutDIAS

The Irish National Seismic Network

The Geophysics Section of DIAS operates the Irish National Seismic Network (INSN). Established in 1980, the network monitors seismic activity across Ireland - through a series of stations. Seismic data is transmitted in real time to the INSN data centre at 5 Merrion Square and shared internationally.

#DIASdiscovers #INSN #geophysics

💁🏻‍♀️ ICYMI: 🌋🌍 The #RingOfFire experiences most of #Earth's volcanic #eruptions and #earthquakes.

The activity is driven by #tectonic plates shifting and colliding over billions of years. Marie Tharp's #ocean floor mapping eventually provided the proof that confirmed continental drift.

👉 Learn more: https://seethis.tv/post/tectonic-plates-ring-of-fire-crash-course-geology

#20thcentury #cartography #geography #geology #geophysics #gravity #history #lava #maps #marianatrench #mountains #naturalhistory #pacific #pangea #rocks #science #underwater #volcanology #womeninstem #tksst #video

💁🏻‍♀️ ICYMI: 🌋🌍 The #RingOfFire experiences most of #Earth's volcanic #eruptions and #earthquakes.

The activity is driven by #tectonic plates shifting and colliding over billions of years. Marie Tharp's #ocean floor mapping eventually provided the proof that confirmed continental drift.

👉 Learn more: https://seethis.tv/post/tectonic-plates-ring-of-fire-crash-course-geology

#20thcentury #cartography #geography #geology #geophysics #gravity #history #lava #maps #marianatrench #mountains #naturalhistory #pacific #pangea #rocks #science #underwater #volcanology #womeninstem #tksst #video