#geophysics — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #geophysics, aggregated by home.social.
-
The Chicxulub asteroid impact generated a global, impermeable cloud of fine silicate dust that trapped immense thermal radiation, superheating the Earth's surface and triggering a mass extinction via planet-wide spontaneous combustion.
#PlanetaryScience #AtmosphericScience #Geophysics #Paleontology #sflorg
https://www.sflorg.com/2026/07/ps07282601.html -
The Chicxulub asteroid impact generated a global, impermeable cloud of fine silicate dust that trapped immense thermal radiation, superheating the Earth's surface and triggering a mass extinction via planet-wide spontaneous combustion.
#PlanetaryScience #AtmosphericScience #Geophysics #Paleontology #sflorg
https://www.sflorg.com/2026/07/ps07282601.html -
🚨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)
#fluidDynamics #geophysics #glacier #instability #meander #physics #rivers #science -
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)
#fluidDynamics #geophysics #glacier #instability #meander #physics #rivers #science -
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.
Seismic waves show lower speeds in large, continent-sized zones that sit beneath Africa and the Pacific. These large low-velocity provinces (LLVPs) are outlined in red.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)
Illustration showing convection in the Earth’s inner mantle. Former tectonic material subducts downward in dark blue zones. The large low-velocity provinces (LLVPs) are shown in orange. Hot-spot volcanic activity is seen at the surface (black triangles) above narrow plumes that lift material from the LLVPs toward the surface. #buoyancy #convection #fluidDynamics #geophysics #mantleConvection #physics #science #seismicWaves -
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.
Seismic waves show lower speeds in large, continent-sized zones that sit beneath Africa and the Pacific. These large low-velocity provinces (LLVPs) are outlined in red.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)
Illustration showing convection in the Earth’s inner mantle. Former tectonic material subducts downward in dark blue zones. The large low-velocity provinces (LLVPs) are shown in orange. Hot-spot volcanic activity is seen at the surface (black triangles) above narrow plumes that lift material from the LLVPs toward the surface. #buoyancy #convection #fluidDynamics #geophysics #mantleConvection #physics #science #seismicWaves -
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.
Diagram showing how a salt-laden spring pushing upward through the mirabilite layer can then form mounds at the surface when the dissolved mirabilite recrystallizes after the water evaporates.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.
A timelapse showing the formation of mirabilite mounds.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)
#crystalGrowth #dissolution #evaporation #fluidDynamics #freezing #geophysics #physics #science -
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.
Diagram showing how a salt-laden spring pushing upward through the mirabilite layer can then form mounds at the surface when the dissolved mirabilite recrystallizes after the water evaporates.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.
A timelapse showing the formation of mirabilite mounds.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)
#crystalGrowth #dissolution #evaporation #fluidDynamics #freezing #geophysics #physics #science -
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)
#fluidDynamics #geophysics #physics #porousFlow #salineLakes #science -
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)
#fluidDynamics #geophysics #physics #porousFlow #salineLakes #science -
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.
-
✨#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.
-
💁🏻♀️ 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
-
💁🏻♀️ 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
-
💁🏻♀️ 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
-
💁🏻♀️ NEW: 🌋🌍 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
-
💁🏻♀️ NEW: 🌋🌍 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
-
A cluster of earthquakes has struck Japan this June. Scientists analyze the seismic patterns and what they mean for the region.
https://1ban.news/japan-earthquake-cluster-june-2026-analysis/
-
A cluster of earthquakes has struck Japan this June. Scientists analyze the seismic patterns and what they mean for the region.
https://1ban.news/japan-earthquake-cluster-june-2026-analysis/
-
Earth, Sweet Earth ( Science For Everyone) by Ekaterina Radkevich
The book is based on the author’s impressions of her numerous expeditions in the many countries. It is a fascinating narrative rather than a mere record of facts irrespective of how scientifically valid they can be. The book is bound to be appreciated as a piece of absorbing reading by anyone who cares to increase the scope of his or her competence about our sweet home of a planet that must be saved from destruction at all costs.
Ekaterina Radkevich, Corresponding Member of the USSR Academy of Sciences, is one of the most distinguished geologists whose works are well known in her own country and in many other parts of the world. The overwhelming success of her publications is chiefly due to her indefatigable practical activity in the USSR and elsewhere and her unflagging interest in theoretical research which she has been conducting for quite some time at the Institute of Geological Studies in the Far East (Viadivostok).
Note: This book was the last remaining volume in the Science for Everyone Series! This completes volume the SFE series in English.
Many, many thanks to Hassaan Ali who purchased and posted this book to us to complete this series. Much appreciated help!
You can get the book here and here
Follow us on
Twitter https://x.com/MirTitles
Mastadon https://mastodon.social/@mirtitles
Bluesky https://bsky.app/profile/mirtitles.bsky.social
Tumblr https://www.tumblr.com/mirtitles
Internet Archive https://archive.org/details/mir-titles
Fork us on gitlab https://gitlab.com/mirtitles
Contents
How I Became a Geologist (In Lieu of a Preface) 7Part I. The Earth in the Universe 20
Chapter 1. The Earth as a Cosmic Body 20
Chapter 2. The Planet Earth 29
Chapter 3. The Deep-seated Structure of the Earth 38
Chapter 4. The Development of Views on the Origin of Earth and Other Planets of the Solar System 47
Part II. The History of the Development of the Earth 58
Chapter 5. The Dawn 58
Chapter 6. Life: The Earth’s Chronicle 70
Part III. Geology Everywhere 100
Chapter 7. The Work of the Wind 102
Chapter 8. The Role of Water in the Transformation of Our Planet 113
Chapter 9. The Activity of Subterranean Forces 127
Part IV. The Composition of the Earth’s Crust 147
Chapter 10. Sedimentary Rocks 147
Chapter 11. Magmatic (Igneous) Rocks 159
Chapter 12. Metamorphic Rocks 185
Part V. The Movements of the Earth’s Crust 202
Chapter 13. Mountains: Old and Young 203
Chapter 14. The Deformation of Rocks 208
Chapter 15. Fixism vs. Mobilism 216
Part VI. Mineral Resources 236
Chapter 16. The Mineral Kingdom 236
Chapter 17. Mineral Raw Materials and Technical Progress 258
Chapter 18. The Future of Mineral Raw Resources 280
Chapter 19. How Ores Are Formed 286
Chapter 20. The Science of Metallogeny 308
Chapter 21. In Quest of Ores 328
Chapter 22. At the Metallogenic Map of the Pacific Belt 338
Chapter 23. Mineral Resources of the Seas and the Underwater Storerooms of Mineral Raw Materials 349
Chapter 24. Save Our Earth! 361
To End on a Poetic Note 367
#earthHistory #earthScience #geochemistry #geology #geophysics #historyOfEarth #mineralResources #mining #planetaryScience #plateTectonics #popularScience #rocks #sovietLiterature -
Earth, Sweet Earth ( Science For Everyone) by Ekaterina Radkevich
The book is based on the author’s impressions of her numerous expeditions in the many countries. It is a fascinating narrative rather than a mere record of facts irrespective of how scientifically valid they can be. The book is bound to be appreciated as a piece of absorbing reading by anyone who cares to increase the scope of his or her competence about our sweet home of a planet that must be saved from destruction at all costs.
Ekaterina Radkevich, Corresponding Member of the USSR Academy of Sciences, is one of the most distinguished geologists whose works are well known in her own country and in many other parts of the world. The overwhelming success of her publications is chiefly due to her indefatigable practical activity in the USSR and elsewhere and her unflagging interest in theoretical research which she has been conducting for quite some time at the Institute of Geological Studies in the Far East (Viadivostok).
Note: This book was the last remaining volume in the Science for Everyone Series! This completes volume the SFE series in English.
Many, many thanks to Hassaan Ali who purchased and posted this book to us to complete this series. Much appreciated help!
You can get the book here and here
Follow us on
Twitter https://x.com/MirTitles
Mastadon https://mastodon.social/@mirtitles
Bluesky https://bsky.app/profile/mirtitles.bsky.social
Tumblr https://www.tumblr.com/mirtitles
Internet Archive https://archive.org/details/mir-titles
Fork us on gitlab https://gitlab.com/mirtitles
Contents
How I Became a Geologist (In Lieu of a Preface) 7Part I. The Earth in the Universe 20
Chapter 1. The Earth as a Cosmic Body 20
Chapter 2. The Planet Earth 29
Chapter 3. The Deep-seated Structure of the Earth 38
Chapter 4. The Development of Views on the Origin of Earth and Other Planets of the Solar System 47
Part II. The History of the Development of the Earth 58
Chapter 5. The Dawn 58
Chapter 6. Life: The Earth’s Chronicle 70
Part III. Geology Everywhere 100
Chapter 7. The Work of the Wind 102
Chapter 8. The Role of Water in the Transformation of Our Planet 113
Chapter 9. The Activity of Subterranean Forces 127
Part IV. The Composition of the Earth’s Crust 147
Chapter 10. Sedimentary Rocks 147
Chapter 11. Magmatic (Igneous) Rocks 159
Chapter 12. Metamorphic Rocks 185
Part V. The Movements of the Earth’s Crust 202
Chapter 13. Mountains: Old and Young 203
Chapter 14. The Deformation of Rocks 208
Chapter 15. Fixism vs. Mobilism 216
Part VI. Mineral Resources 236
Chapter 16. The Mineral Kingdom 236
Chapter 17. Mineral Raw Materials and Technical Progress 258
Chapter 18. The Future of Mineral Raw Resources 280
Chapter 19. How Ores Are Formed 286
Chapter 20. The Science of Metallogeny 308
Chapter 21. In Quest of Ores 328
Chapter 22. At the Metallogenic Map of the Pacific Belt 338
Chapter 23. Mineral Resources of the Seas and the Underwater Storerooms of Mineral Raw Materials 349
Chapter 24. Save Our Earth! 361
To End on a Poetic Note 367
#earthHistory #earthScience #geochemistry #geology #geophysics #historyOfEarth #mineralResources #mining #planetaryScience #plateTectonics #popularScience #rocks #sovietLiterature -
The rate-mismatch hypothesis posits that global mass extinctions occur when the pace of environmental change outstrips the rate at which biological life can undergo evolutionary adaptation. It provides a mathematical model linking Earth's historic extinction events to the critical disparities between environmental shifts and species' adaptive capabilities.
#Paleobiology #Paleoclimatology #Geophysics #AppliedMathematics #EvolutionaryBiology #sflorg
https://www.sflorg.com/2026/06/pal06242601.html -
The rate-mismatch hypothesis posits that global mass extinctions occur when the pace of environmental change outstrips the rate at which biological life can undergo evolutionary adaptation. It provides a mathematical model linking Earth's historic extinction events to the critical disparities between environmental shifts and species' adaptive capabilities.
#Paleobiology #Paleoclimatology #Geophysics #AppliedMathematics #EvolutionaryBiology #sflorg
https://www.sflorg.com/2026/06/pal06242601.html -
💁🏻♀️ ICYMI: 🧊🌊 #Calving is the term for when large pieces of #ice break off #glaciers in a thunderous, impressive spectacle, creating new #icebergs.
This #video of #Monacobreen, a tidewater glacier in #Svalbard, #Norway, provides a good demonstration of calving and the #waves it can create.
👉 Learn more: https://seethis.tv/post/monacobreen-calving-from-a-glacier-in-svalbard
#arctic #climate #climatechange #geology #geophysics #island #nature #ocean #science #sound #tksst
-
💁🏻♀️ ICYMI: 🧊🌊 #Calving is the term for when large pieces of #ice break off #glaciers in a thunderous, impressive spectacle, creating new #icebergs.
This #video of #Monacobreen, a tidewater glacier in #Svalbard, #Norway, provides a good demonstration of calving and the #waves it can create.
👉 Learn more: https://seethis.tv/post/monacobreen-calving-from-a-glacier-in-svalbard
#arctic #climate #climatechange #geology #geophysics #island #nature #ocean #science #sound #tksst
-
@PoLaRobs Cheer up with the rip-roaring informed but pulp-fiction-style novel of the same name #geopolitics #geophysics #readingforenjoyment
https://en.wikipedia.org/wiki/Termination_Shock_(novel) -
@PoLaRobs Cheer up with the rip-roaring informed but pulp-fiction-style novel of the same name #geopolitics #geophysics #readingforenjoyment
https://en.wikipedia.org/wiki/Termination_Shock_(novel) -
💁🏻♀️ ICYMI: 🧊🌊 #Calving is the term for when large pieces of #ice break off #glaciers in a thunderous, impressive spectacle, creating new #icebergs.
This #video of #Monacobreen, a tidewater glacier in #Svalbard, #Norway, provides a good demonstration of calving and the #waves it can create.
👉 Learn more: https://seethis.tv/post/monacobreen-calving-from-a-glacier-in-svalbard
#arctic #climate #climatechange #geology #geophysics #island #nature #ocean #science #sound #tksst
-
💁🏻♀️ ICYMI: 🧊🌊 #Calving is the term for when large pieces of #ice break off #glaciers in a thunderous, impressive spectacle, creating new #icebergs.
This #video of #Monacobreen, a tidewater glacier in #Svalbard, #Norway, provides a good demonstration of calving and the #waves it can create.
👉 Learn more: https://seethis.tv/post/monacobreen-calving-from-a-glacier-in-svalbard
#arctic #climate #climatechange #geology #geophysics #island #nature #ocean #science #sound #tksst
-
Retreating Glaciers Risk Tsunamis
On 10 August 2025, the slopes of Alaska’s Tracy Arm Fjord gave way, sliding into the water. The resulting tsunami was the second-largest ever recorded, with a 481-meter runup after a 100-meter initial wave that moved at more than 70 meters per second. The fjord was fortunately empty at the time, though it is regularly visited by cruise ships. After the landslide, a seiche ricocheted through the fjord for 36 hours.
With no earthquake to trigger the tsunami, researchers had to piece together the accident through forensics. Their study concluded that the glacier’s retreat had left unstable slopes exposed, likening it to a child’s closet overstuffed with hastily gathered toys. The moment the door is no longer held closed, everything comes crashing out.
Ultimately, the landslide-induced tsunami is, therefore, a result of climate change. That result is disconcerting, given the increasing frequency of cruise ships visiting glacial fjords. Unlike earthquake-induced tsunamis, landslide-induced ones like the Tracy Arm event don’t come with a seismic warning. With rapid climate change and frequent tourism, risk management is critical. (Image credit: C. Read/USGS; research credit: D. Shugar et al.; via Eos)
An image showing the aftermath of the 10 August, 2025 landslide in Alaska’s Tracy Arm Fjord, which caused the second largest tsunami recorded. The light rock slope shows where material fell from. On the lower right, the foot of the South Sawyer Glacier is just visible. #climateChange #fluidDynamics #geophysics #landslide #physics #science #seiche #standingWave #tsunami -
Retreating Glaciers Risk Tsunamis
On 10 August 2025, the slopes of Alaska’s Tracy Arm Fjord gave way, sliding into the water. The resulting tsunami was the second-largest ever recorded, with a 481-meter runup after a 100-meter initial wave that moved at more than 70 meters per second. The fjord was fortunately empty at the time, though it is regularly visited by cruise ships. After the landslide, a seiche ricocheted through the fjord for 36 hours.
With no earthquake to trigger the tsunami, researchers had to piece together the accident through forensics. Their study concluded that the glacier’s retreat had left unstable slopes exposed, likening it to a child’s closet overstuffed with hastily gathered toys. The moment the door is no longer held closed, everything comes crashing out.
Ultimately, the landslide-induced tsunami is, therefore, a result of climate change. That result is disconcerting, given the increasing frequency of cruise ships visiting glacial fjords. Unlike earthquake-induced tsunamis, landslide-induced ones like the Tracy Arm event don’t come with a seismic warning. With rapid climate change and frequent tourism, risk management is critical. (Image credit: C. Read/USGS; research credit: D. Shugar et al.; via Eos)
An image showing the aftermath of the 10 August, 2025 landslide in Alaska’s Tracy Arm Fjord, which caused the second largest tsunami recorded. The light rock slope shows where material fell from. On the lower right, the foot of the South Sawyer Glacier is just visible. #climateChange #fluidDynamics #geophysics #landslide #physics #science #seiche #standingWave #tsunami -
💁🏻♀️ ICYMI: 🧊🌊 #Calving is the term for when large pieces of #ice break off #glaciers in a thunderous, impressive spectacle, creating new #icebergs.
This #video of #Monacobreen, a tidewater glacier in #Svalbard, #Norway, provides a good demonstration of calving and the #waves it can create.
👉 Learn more: https://seethis.tv/post/monacobreen-calving-from-a-glacier-in-svalbard
#arctic #climate #climatechange #geology #geophysics #island #nature #ocean #science #sound #tksst
-
💁🏻♀️ ICYMI: 🧊🌊 #Calving is the term for when large pieces of #ice break off #glaciers in a thunderous, impressive spectacle, creating new #icebergs.
This #video of #Monacobreen, a tidewater glacier in #Svalbard, #Norway, provides a good demonstration of calving and the #waves it can create.
👉 Learn more: https://seethis.tv/post/monacobreen-calving-from-a-glacier-in-svalbard
#arctic #climate #climatechange #geology #geophysics #island #nature #ocean #science #sound #tksst
-
💁🏻♀️ NEW: 🧊🌊 #Calving is the term for when large pieces of #ice break off #glaciers in a thunderous, impressive spectacle, creating new #icebergs.
This #video of #Monacobreen, a tidewater glacier in #Svalbard, #Norway, provides a good demonstration of calving and the #waves it can create.
👉 Learn more: https://seethis.tv/post/monacobreen-calving-from-a-glacier-in-svalbard
#arctic #climate #climatechange #geology #geophysics #island #nature #ocean #science #sound #tksst
-
💁🏻♀️ NEW: 🧊🌊 #Calving is the term for when large pieces of #ice break off #glaciers in a thunderous, impressive spectacle, creating new #icebergs.
This #video of #Monacobreen, a tidewater glacier in #Svalbard, #Norway, provides a good demonstration of calving and the #waves it can create.
👉 Learn more: https://seethis.tv/post/monacobreen-calving-from-a-glacier-in-svalbard
#arctic #climate #climatechange #geology #geophysics #island #nature #ocean #science #sound #tksst
-
Asteroid bombardment during the Earth's formative eons fractured the upper crust, generating extensive, high-permeability hydrothermal systems that established the geochemical environments necessary for the emergence of life.
#PlanetaryScience #Geophysics #Astrobiology #Geochemistry #sflorg
https://www.sflorg.com/2026/06/ps06092601.html -
6/
On the other side, geologists point directly to the infallible record in the rock strata. They argue that the planet's thermostat is moving too fast, waking sleeping geophysical giants—from ocean conveyor collapse to magnitude-eight post-glacial megaquakes.Because when the velocity of change pushes a system past its breaking point, the support stones are washed away. And as the rock record shows us... the Earth does not negotiate.
-
6/
On the other side, geologists point directly to the infallible record in the rock strata. They argue that the planet's thermostat is moving too fast, waking sleeping geophysical giants—from ocean conveyor collapse to magnitude-eight post-glacial megaquakes.Because when the velocity of change pushes a system past its breaking point, the support stones are washed away. And as the rock record shows us... the Earth does not negotiate.
-
5/
In today’s episode, we are diving into a fierce academic debate that completely strips away our human hubris: Can modern civilization survive the sheer velocity of current climate change? On one side, historians argue that human ingenuity is an unmatchable force—that we are evolutionary bottleneck survivors who can engineer our way out of any corner. -
5/
In today’s episode, we are diving into a fierce academic debate that completely strips away our human hubris: Can modern civilization survive the sheer velocity of current climate change? On one side, historians argue that human ingenuity is an unmatchable force—that we are evolutionary bottleneck survivors who can engineer our way out of any corner. -
4/
Our entire modern world—our mega-cities, our massive global supply chains, our rigidly optimized agricultural zones feeding eight billion people—is that colossal boulder. It seems permanent. It feels immovable.But it is balancing on an incredibly narrow, highly specific set of environmental conditions.
And right now, the system is sliding into deep, systemic instability.
-
4/
Our entire modern world—our mega-cities, our massive global supply chains, our rigidly optimized agricultural zones feeding eight billion people—is that colossal boulder. It seems permanent. It feels immovable.But it is balancing on an incredibly narrow, highly specific set of environmental conditions.
And right now, the system is sliding into deep, systemic instability.
-
3/
For ten thousand years, as waves crashed, currents shifted, and the land heaved upward, it hasn't budged. It has remained perfectly, inexplicably balanced.
Until now.#Spikstenen is the perfect visual metaphor for the #Holocene baseline—the remarkably stable climate epoch that allowed human civilization to flourish.
-
Podcast Intro: The Nail Stone Metaphor
If you travel about twenty-five kilometers north of Nyköping in southern Sweden, out in the quiet landscape of Ripsa, you will stumble across a geological anomaly known as #Spikstenen.
