#geophysics — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #geophysics, aggregated by home.social.
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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 -
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/ -
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 -
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 -
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
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💁🏻♀️ 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
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💁🏻♀️ 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
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💁🏻♀️ 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
-
💁🏻♀️ 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
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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
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💁🏻♀️ 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
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💁🏻♀️ 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
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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 -
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.
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Mount Etna may represent a previously unknown type of volcano. Researchers suggest its magma rises from pockets nearly 80 km deep, challenging the classic 3-category view of volcanism and reshaping how scientists think about mantle dynamics.
🔗 https://phys.org/news/2026-04-mount-etna-volcano-kilometer-deep.html
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Mount Etna may represent a previously unknown type of volcano. Researchers suggest its magma rises from pockets nearly 80 km deep, challenging the classic 3-category view of volcanism and reshaping how scientists think about mantle dynamics.
🔗 https://phys.org/news/2026-04-mount-etna-volcano-kilometer-deep.html
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🪨🔥 #Earth’s inner core reaches about 5,500°C, roughly as hot as the surface of the #sun.
Scientists from UC #SantaCruz and Sun Yat-sen University calculated this using diamond anvil cells and shock-wave experiments that simulate the extreme pressures deep underground. The outer core’s liquid #iron also generates #Earth’s magnetic field, which protects all #life from #solar #radiation.
👉 https://www.livescience.com/planet-earth/geology/how-hot-is-earths-core
#geology #temperature #science #magneticfield #planet #heat #solarsystem #geophysics #volcano #earthscience #lifescience
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👹🔴 Researchers from #Hokkaido University and the #Okinawa Institute of #Science and #Technology analyzed five auroral events over #Japan from June 2024 to March 2025, combining satellite #data with #photos from citizen skywatchers.
They found that red #auroras reached unusually high altitudes (500-800 km) during #storms previously classified as moderate, suggesting #solar activity may be stronger than standard measurements indicate. The findings have practical implications for #satellites in low #Earth orbit, because heated upper #atmosphere expands and creates extra drag on #spacecraft.
👉 https://www.sciencedaily.com/releases/2026/05/260521072359.htm
#weather #magnetosphere #science #geophysics #space #ionosphere
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👹🔴 Researchers from #Hokkaido University and the #Okinawa Institute of #Science and #Technology analyzed five auroral events over #Japan from June 2024 to March 2025, combining satellite #data with #photos from citizen skywatchers.
They found that red #auroras reached unusually high altitudes (500-800 km) during #storms previously classified as moderate, suggesting #solar activity may be stronger than standard measurements indicate. The findings have practical implications for #satellites in low #Earth orbit, because heated upper #atmosphere expands and creates extra drag on #spacecraft.
👉 https://www.sciencedaily.com/releases/2026/05/260521072359.htm
#weather #magnetosphere #science #geophysics #space #ionosphere
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https://www.europesays.com/uk/985702/ Reduction of tropical cyclone-induced ocean carbon outgassing since 1993 #CarbonCycle #EarthSciences #EarthSystemSciences #Environment #general #Geochemistry #Geology #Geophysics/Geodesy #MarineChemistry #OceanSciences #Science #UK #UnitedKingdom
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Reduction of tropical cyclone-induced ocean carbon outgassing since 1993
Ciais, P. et al. Five decades of northern land carbon uptake revealed by the interhemispheric CO2 gradient. Nature…
#NewsBeep #News #Environment #Carboncycle #EarthSciences #EarthSystemSciences #environment #general #Geochemistry #Geology #Geophysics/Geodesy #Marinechemistry #Oceansciences #Science #UK #UnitedKingdom
https://www.newsbeep.com/uk/604592/ -
Reduction of tropical cyclone-induced ocean carbon outgassing since 1993
Ciais, P. et al. Five decades of northern land carbon uptake revealed by the interhemispheric CO2 gradient. Nature…
#NewsBeep #News #Environment #AU #Australia #Carboncycle #EarthSciences #EarthSystemSciences #general #Geochemistry #Geology #Geophysics/Geodesy #Marinechemistry #Oceansciences #Science
https://www.newsbeep.com/au/695429/ -
Reduction of tropical cyclone-induced ocean carbon outgassing since 1993
Ciais, P. et al. Five decades of northern land carbon uptake revealed by the interhemispheric CO2 gradient. Nature…
#NewsBeep #News #Environment #AU #Australia #Carboncycle #EarthSciences #EarthSystemSciences #general #Geochemistry #Geology #Geophysics/Geodesy #Marinechemistry #Oceansciences #Science
https://www.newsbeep.com/au/695429/ -
Reduction of tropical cyclone-induced ocean carbon outgassing since 1993
Ciais, P. et al. Five decades of northern land carbon uptake revealed by the interhemispheric CO2 gradient. Nature…
#NewsBeep #News #Environment #CA #Canada #Carboncycle #earthsciences #EarthSystemSciences #general #Geochemistry #Geology #Geophysics/Geodesy #Marinechemistry #Oceansciences #Science
https://www.newsbeep.com/ca/694587/ -
https://www.europesays.com/ie/503165/ Reduction of tropical cyclone-induced ocean carbon outgassing since 1993 #CarbonCycle #EarthSciences #EarthSystemSciences #Éire #Environment #general #Geochemistry #Geology #Geophysics/Geodesy #IE #Ireland #MarineChemistry #OceanSciences #Science
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@coreyspowell
10/
In short: It’s not an apocalypse; it’s a data corrective. It proves that the engine room of our planet is a highly active, rapidly changing environment, and it took a constellation of advanced satellites sixteen years of data-crunching to finally reveal what happened right under our feet.#Geophysics
#Geomagnetism
#EarthsCore
#Geodynamics
#OuterCore
#Geodynamo
#ESASwarm
#CryoSat
#SatelliteData
#EarthObservation
#GeomagneticField
#WorldMagneticModel
#WMM -
@coreyspowell
10/
In short: It’s not an apocalypse; it’s a data corrective. It proves that the engine room of our planet is a highly active, rapidly changing environment, and it took a constellation of advanced satellites sixteen years of data-crunching to finally reveal what happened right under our feet.#Geophysics
#Geomagnetism
#EarthsCore
#Geodynamics
#OuterCore
#Geodynamo
#ESASwarm
#CryoSat
#SatelliteData
#EarthObservation
#GeomagneticField
#WorldMagneticModel
#WMM -
@coreyspowell
10/
In short: It’s not an apocalypse; it’s a data corrective. It proves that the engine room of our planet is a highly active, rapidly changing environment, and it took a constellation of advanced satellites sixteen years of data-crunching to finally reveal what happened right under our feet.#Geophysics
#Geomagnetism
#EarthsCore
#Geodynamics
#OuterCore
#Geodynamo
#ESASwarm
#CryoSat
#SatelliteData
#EarthObservation
#GeomagneticField
#WorldMagneticModel
#WMM -
@coreyspowell
10/
In short: It’s not an apocalypse; it’s a data corrective. It proves that the engine room of our planet is a highly active, rapidly changing environment, and it took a constellation of advanced satellites sixteen years of data-crunching to finally reveal what happened right under our feet.#Geophysics
#Geomagnetism
#EarthsCore
#Geodynamics
#OuterCore
#Geodynamo
#ESASwarm
#CryoSat
#SatelliteData
#EarthObservation
#GeomagneticField
#WorldMagneticModel
#WMM -
@coreyspowell
10/
In short: It’s not an apocalypse; it’s a data corrective. It proves that the engine room of our planet is a highly active, rapidly changing environment, and it took a constellation of advanced satellites sixteen years of data-crunching to finally reveal what happened right under our feet.#Geophysics
#Geomagnetism
#EarthsCore
#Geodynamics
#OuterCore
#Geodynamo
#ESASwarm
#CryoSat
#SatelliteData
#EarthObservation
#GeomagneticField
#WorldMagneticModel
#WMM -
@coreyspowell
9/
The consequence: This study provides a practical reality check. It proves that localized, dramatic "sloshing" and regional flow reversals happen relatively frequently in the outer core as part of the earth's natural, healthy dynamic loop, without triggering a catastrophic planetary collapse. -
@coreyspowell
9/
The consequence: This study provides a practical reality check. It proves that localized, dramatic "sloshing" and regional flow reversals happen relatively frequently in the outer core as part of the earth's natural, healthy dynamic loop, without triggering a catastrophic planetary collapse. -
@coreyspowell
9/
The consequence: This study provides a practical reality check. It proves that localized, dramatic "sloshing" and regional flow reversals happen relatively frequently in the outer core as part of the earth's natural, healthy dynamic loop, without triggering a catastrophic planetary collapse.
