Lake Kivu looks peaceful. But deep below, it stores vast amounts of CO₂ and methane. In a rare limnic eruption, that gas could suddenly burst out. What is a limnic eruption, and how real is Kivu’s risk? Read more: geoscopy.com/what-is-a-li... #Geology #LakeKivu

The Eye of the Sahara looks like a giant impact crater from space. But it probably wasn’t made by a meteorite at all. The Richat Structure is a 40-km-wide geologic dome carved open by erosion, one of Earth’s strangest landmarks. Read more: geoscopy.com/eye-of-the-s... #Geology #EarthScience

300 metres underground in Mexico, miners found a cave filled with giant crystals longer than a bus. The catch? It’s so hot and humid inside that humans can only survive for minutes. Naica’s Cave of Crystals is Earth’s mineral patience made visible. geoscopy.com/naica-cave-o... #Geology

Earth has a “gravity hole” south of India. Not a pit, a 100+ m sag in gravity-shaped sea level, likely tied to ancient Tethys slabs and deep mantle flow. The science behind the Indian Ocean Geoid Low: geoscopy.com/indian-ocean... #Geology #EarthScience

Bermuda is famous for the wrong mystery. Forget the Triangle. The real anomaly may be 20 km beneath the island: a buried “raft” of underplated rock helping Bermuda stay unusually elevated above the Atlantic seafloor. Read the full story: geoscopy.com/the-bermuda-... #Geology #Bermuda

A meteorite may have struck Brazil 6.3 million years ago. The crater is still missing, but the evidence survived as strange black glass scattered across farms in Minas Gerais, Bahia and Piauí. Meet geraisite, Brazil’s first confirmed tektite strewn field. geoscopy.com/geraisite-br... #Geology

Mount Rainier’s biggest danger may not be lava. In 1507, a volcanic mudflow raced down the Puyallup Valley and buried an old-growth forest upright, trees killed standing, sealed in mud, and later used to date the disaster. Read the full story: geoscopy.com/mount-rainie... #Geology #MountRainier

A volcano almost missing from history just woke up. Hayli Gubbi, a low shield volcano in Ethiopia’s Afar Depression, erupted for the first time in recorded history, sending ash across continents. Earth still has blind spots. geoscopy.com/ethiopias-ha... #Geology #Volcano #Ethiopia

What if Earth once had rings like Saturn? A new Ordovician mystery links equatorial impact craters, meteorite dust, and a possible asteroid halo around our planet 466 million years ago. Full story: geoscopy.com/did-earth-ha... #Geoscopy #Geology #EarthHistory

For the first time, a major fault rupture was caught on camera. In Myanmar, the ground shifted ~2.5 metres in just 1.3 seconds, turning a CCTV clip into rare evidence of how earthquakes tear the surface apart. geoscopy.com/first-ever-f... #geology #earthquake #seismology #geology

Indonesia is more than islands. Some of its deep geology is the wreckage of Argoland: a lost continent that broke from Australia ~155 million years ago and shattered into Southeast Asia’s tectonic chaos. Read it on Geoscopy: geoscopy.com/argoland-the... #geology #tectonics #Indonesia

41,000 years ago, Earth’s magnetic shield weakened dramatically. The poles wandered. The magnetosphere shrank. Auroras may have appeared far from the Arctic, and the sky our ancestors saw may have looked almost alien. The Laschamps Excursion, explained: geoscopy.com/laschamps-ex... #Geology

Africa is slowly splitting apart, and the Turkana Rift may be entering one of the final stages before a new ocean is born. The crust there has thinned dramatically, offering a rare glimpse of continental breakup in action. Read more on Geoscopy: geoscopy.com/birth-of-a-s... #geology

Britain was once connected to Europe by a lost landscape of rivers, forests, wetlands, and people. Then sea level rose. Then the Storegga tsunami struck. Doggerland wasn’t simply “destroyed in one wave”, the real story is stranger. Read it on Geoscopy: geoscopy.com/doggerland-t... #geology

In 2023, Earth “rang” for 9 days, and nobody knew why. The source was not an earthquake, but a massive Greenland landslide that triggered a trapped tsunami inside a fjord, pulsing like water in a giant bathtub. Full story: geoscopy.com/greenlands-9... #geology

Earth is good at erasing its own scars. But in Western Australia’s Pilbara, geologists found a clue that may point to the oldest impact crater ever discovered: hidden in rocks nearly 3.5 billion years old. Read the full story on Geoscopy: geoscopy.com/worlds-oldes... #geology

Earth’s inner core didn’t “stop spinning.” Seismic waves suggest something stranger: the solid iron core 5,000+ km beneath us may have slowed enough to drift backward relative to Earth’s surface. Earth’s deepest clock changed rhythm. Read more: geoscopy.com/earths-inner... #geology

635 million years ago, Earth may have turned from a blue planet into a frozen white marble. The strangest clue? Rocks in South Australia suggest glaciers once reached sea level near the ancient equator. Snowball Earth was an ice age and a planetary trap. geoscopy.com/snowball-ear... #geology

Some fish in North Dakota died with asteroid glass in their gills. Specifically, the asteroid that killed the dinosaurs. The site is called Tanis. It preserves the first hour of the K-Pg extinction. Read now on geoscopy.com geoscopy.com/tanis-the-ho... #geology

Some volcanoes don’t erupt once and go quiet. They pulse for years, decades, even centuries: open windows into Earth’s hidden plumbing. My new Geoscopy article explores the world’s most active volcanoes, and why “active” is harder to define than it sounds: geoscopy.com/exploring-th... #geoogy

King Tut’s yellow scarab was not ordinary stone. It was carved from Libyan Desert Glass, a 29-million-year-old impact glass from Egypt’s Great Sand Sea. The crater that made it? Still missing. New article on geoscopy.com: geoscopy.com/libyan-deser... #geology

Earth’s worst extinction didn’t come from an asteroid. 252 million years ago, Siberian magma cooked coal, salt, and organic-rich sediments: triggering warming, acidifying seas, oxygen-starved oceans, and the collapse of the Palaeozoic world. Read the story: geoscopy.com/the-great-dy... #geology

In 1700, a forest on the Washington coast died standing. No one wrote down the earthquake that killed it. Japan recorded the wave. The story of Cascadia’s last magnitude-9 rupture and the “orphan tsunami” it sent across the Pacific: geoscopy.com/the-1700-cas... #geology

Something hot is moving under New England. About 200 km down, the Northern Appalachian Anomaly may be a drifting “heat blob” left behind by the breakup of Greenland and North America: and it could help explain why the Appalachians are still high. Full story: geoscopy.com/northern-app... #geology

There are two continent-sized structures sitting on top of Earth’s core. Tuzo beneath Africa. Jason beneath the Pacific. Seismic waves reveal their shapes. Their edges may help organise where some of Earth’s biggest volcanic events begin. Full article: geoscopy.com/llsvps-hidde... #geology

Earth is making hydrogen underground. From Mali’s famous hydrogen well to deep targets beneath Lorraine and Kansas, white hydrogen has triggered a geological gold rush. But the real question is this: can it flow at industrial scale? Read the full article on Geoscopy: geoscopy.com/white-hydrog...

5.3 million years ago, the Mediterranean nearly stopped being a sea. Cut off from the Atlantic, it became a vast evaporating basin of salt. Then the ocean broke back in. The story of the Messinian Salinity Crisis and the Zanclean megaflood: geoscopy.com/when-the-med... #geology

Diamonds don’t come from coal. Most natural gem diamonds formed 140–200 km beneath ancient continents, often more than a billion years ago, long before many major coal deposits existed. I wrote a geology explainer on how diamonds actually form: geoscopy.com/are-diamonds... #geology

Stop looking at pollsters to understand the South. 🛑 Trillions of 80-million-year-old skeletons are the ones actually deciding modern American elections. 🐚 This hyper-fertile “Black Belt” soil didn’t just grow cotton, it built the demographic architecture that runs our country today. #geology

Earth wasn’t always the “pale blue dot” we see today. 🌍✨ 3 billion years ago, our planet was neon purple. This is the Purple Earth Hypothesis. Before chlorophyll-based plants dominated the world, the early biosphere used a simpler molecule called Retinal to harvest energy. 🧬 #geology #astrobiology

Me realizing I'm slowly running out of space for my rock collection and the only place I can store my Cinnbar and Chrysotile samples is next to my bed. #geology

Around 2013 a new rock type dropped, and it’s honestly cursed. Geologists are finding 'Frankenstein rocks'—melted plastic literally fused with beach sand and volcanic stone. Meet the plastiglomerate: humanity’s permanent, synthetic receipt for the Anthropocene." #geology

Coprolites aren’t my favorite fossil, but they’re a solid number two. I'll see myself out. 🚶‍♂️

Happy Thanksgiving #geology

Dear algorithm, show this good morning post to all #geology enthusiasts out there, please!

Check your Halloween candy carefully. Someone tried to hide the Cretaceous-Paleogene boundary layer in mine. #Geology

🌋 Kīlauea is showing off again! This Hawaiian volcano – one of the world’s most active – has been erupting in an unusual stop-and-go style #Geology

Let's explain rocks by sandwiches. Trust me. Earth builds rock three main ways: it stacks, it cools from melt, or it presses and reheats what it already made. #Geology 🧵

There’s a literal leak at the bottom of the Pacific Ocean—plugged straight into the Cascadia megathrust. Scientists call it Pythia’s Oasis. It’s a spring on the seafloor that shoots out warm, almost‑fresh water like a firehose. Yes, from right above the fault. #Geology🧵

That's no mere rolling rock—it's a "volcanic bomb" launched from the La Palma vent like a cannonball. This molten boulder hit the steep ash cone and just kept rolling, carving a path for over a kilometer. Geologists dubbed these terrifying projectiles "spallation bombs."

Earth—Patch Notes v4.56 Ga – Fixed supercontinent crash loop (not a bug, a feature). – Magnetic field auto‑renewal improved. – Rift DLC now ships with passive margins. – Ocean balance: fewer BIF drops, more plankton. – Known issue: roads vs. landslides.

Rocks keep tiny compasses. When they cooled, iron minerals locked in whatever “north” was trending. Lay them across the seafloor and you get zebra stripes of magnetic nostalgia. My phone can’t remember yesterday’s Wi‑Fi. #Geology

In my opinion the problem with Jurassic Park isn’t cloning dinosaurs. It’s building on a tropical island with that many steep slopes and zero landslide mitigation. #Geology

Have you heard about a volcano that erupts black lava and turns it snow-white in hours? Meet Ol Doinyo Lengai in Tanzania – often called the world’s most unique. It’s the only known volcano that spews carbonatite lava (a carbonate lava) instead of the usual molten silicate rock. #Geology

Have you heard about a volcano that erupts black lava and turns it snow-white in hours? Meet Ol Doinyo Lengai in Tanzania – often called the world’s most unique. It’s the only known volcano that spews carbonatite lava (a carbonate lava) instead of the usual molten silicate rock. #Geology

Mohs hardness scale #Geology

Alfred Wegener guessed the drift before the data: puzzle-piece coasts, twin fossils, matching rock belts, glacial scars. #Geology

Arriving at the #geology section in a library

Geology Time Travel #geology

New Fossil found! 😂 Nokiasorus 🦕