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<rss version="2.0"><channel><description>Read the Earth.&#xA;&#xA;Rocks, minerals, volcanoes, plate tectonics, deep time: the record the planet keeps, and how to read it.&#xA;&#xA;A geology project.&#xA;Long-form, field-led, deep dive.</description><link>https://bsky.app/profile/geoscopy.bsky.social</link><title>@geoscopy.bsky.social - Geoscopy — Read the Earth</title><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mvt35s74h22g</link><description>The deepest hole ever drilled gets 0.2% of the way to Earth&#39;s centre. How do we know what&#39;s inside the Earth?&#xA;&#xA;Inge Lehmann found the inner core in 1936 using cards filed in oatmeal boxes. She never said it was solid. Proof of that came in 1971.&#xA;&#xA;https://geoscopy.com/how-earthquakes-revealed-earths-hidden-inner-core/ #geology</description><pubDate>18 Sep 2026 21:06 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mvt35s74h22g</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mvpa34ik3s2o</link><description>Geologists voted 12 to 4 against the Anthropocene in 2024. &#xA;&#xA;The problem was scale: a 70-year epoch on a chart where the units run to tens of millions of years. You can argue it either way. &#xA;&#xA;Wrote up the whole time scale, that vote included:&#xA;https://geoscopy.com/the-geologic-time-scale-explained-eons-eras-periods-etc/ #geology #geologyexplained</description><pubDate>17 Sep 2026 08:24 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mvpa34ik3s2o</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mtr6swmhn22e</link><description>Nazaré’s monster waves may not work the way we thought.&#xA;&#xA;New measurements suggest the underwater canyon doesn’t simply “funnel” waves toward shore. it refracts and reflects them, focusing wave energy near Praia do Norte.&#xA;&#xA;The geology behind the giants 🌊&#xA;&#xA;https://geoscopy.com/nazares-monster-waves-the-canyon-causing-the-water-wall/ #geology</description><pubDate>23 Aug 2026 16:16 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mtr6swmhn22e</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mtqlejippc2p</link><description>Chef Gordon Ramsay reportedly a STAUNCH DEFENDER of abiotic ooid formation.&#xA;&#xA;&#34;They&#39;re limestone pearls rolled smooth in the surf, spherification with no chef, no oyster, no help. Warm water loaded with dissolved lime, agitation, time. The technique needs nothing alive. That&#39;s what makes it perfect.&#34;</description><pubDate>23 Aug 2026 10:28 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mtqlejippc2p</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mtj365y2722b</link><description>Erling Håland from Manchester CIty reportedly &#34;does not trust&#34; the standard history of Earth&#39;s magnetic field.&#xA;&#xA;&#34;The inner core is half a billion years old. The field is three and a half billion years old. So who was paying the bill for three billion years?&#34; #geology</description><pubDate>20 Aug 2026 10:50 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mtj365y2722b</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mtg7bgta7s25</link><description>Zendaya reportedly highly SKEPTICAL of deep mantle plumes denoting the origin of oceanic intraplate volcanism.&#xA;&#xA; &#34;Show me one tomographic image that isn&#39;t smeared by vertical ray paths. At this point the plume hypothesis is unfalsifiable.&#34;</description><pubDate>19 Aug 2026 07:25 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mtg7bgta7s25</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mtg77g7xus25</link><description>Dua Lipa reportedly FURIOUS about the discussions surrounding the Dolomite Problem.&#xA;&#xA; &#34;If it&#39;s thermodynamically favored, why can&#39;t we nucleate it at surface conditions? Microbial mediation is the only serious answer.&#34; #geology</description><pubDate>19 Aug 2026 07:24 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mtg77g7xus25</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mtg766vnbk25</link><description>Max Verstappen reveals in post-race interview that he no longer believes in magma chambers.&#xA;&#xA; &#34;It&#39;s transcrustal crystal mush all the way down. The melt-rich lens is ephemeral. The textbook balloon diagram lied to you.&#34; #geology</description><pubDate>19 Aug 2026 07:23 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mtg766vnbk25</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mtg756u6t225</link><description>Tom Holland reveals he doesn&#39;t trust detrital zircon provenance studies.&#xA;&#xA; &#34;You&#39;re telling me 120 grains characterize an entire drainage basin? The discordance from Pb-loss alone should scare you.&#34;&#xA;&#xA;He adds: &#34;Youngest single grain is NOT a maximum depositional age.&#34; #geology</description><pubDate>19 Aug 2026 07:23 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mtg756u6t225</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mtdtlcolfk2k</link><description>This looks like the ruins of a lost civilization.&#xA;&#xA;But the “Yonaguni Monument” off Japan may be something even stranger: a completely natural rock formation shaped by tectonics.&#xA;&#xA;So why does it look so man-made?&#xA;&#xA;New article: geoscopy.com/yonaguni-monument-natural-formation-or-man-made-ruin/&#xA;https://geoscopy.com/yonaguni-monument-natural-formation-or-man-made-ruin/</description><pubDate>18 Aug 2026 08:50 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mtdtlcolfk2k</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mp3xinzgrk2t</link><description>Venezuela didn’t get one major earthquake.&#xA;&#xA;It got two.&#xA;&#xA;A M7.2 struck first. Just 39 seconds later, a larger M7.5 hit almost the same patch of crust.&#xA;&#xA;That’s not a normal aftershock. It’s a seismic doublet, and the second quake was bigger.&#xA;&#xA;Read it on geoscopy.com. &#xA;#geology #venezuela #earthquake</description><pubDate>25 Jun 2026 07:58 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mp3xinzgrk2t</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3movjexg5ck2b</link><description>Honeycomb toffee and pumice are both foams frozen in place: gas bubbles expand through a hot liquid, then get trapped as it hardens. &#xA;&#xA;In toffee, the bubbles are mostly CO₂ from baking soda; in pumice, they’re volcanic gases exsolving from magma as pressure drops. 🌋 #geology</description><pubDate>22 Jun 2026 18:30 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3movjexg5ck2b</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mounaauu2k2q</link><description>This entire room is carved out of salt.&#xA;&#xA;130 metres under Poland, miners spent 700 years turning a salt mine into an underground cathedral: walls, statues, all rock salt.&#xA;&#xA;The salt is 13.6 million years old. It once funded a third of medieval Poland. 🧵👇 #Geology #Wieliczka #Saltmine</description><pubDate>22 Jun 2026 10:06 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mounaauu2k2q</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mnuxi6tdhc24</link><description>Siberia’s tundra is blowing holes in itself.&#xA;&#xA;These giant craters weren’t dug by humans or carved by meteorites, they formed when trapped gas built pressure beneath permafrost and exploded through the frozen ground.&#xA;&#xA;Full story: https://geoscopy.com/siberias-exploding-craters-the-gas-emission-crater-mystery/&#xA;&#xA;#Geology #Permafrost #Siberia</description><pubDate>09 Jun 2026 19:44 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mnuxi6tdhc24</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mnussdzjmk2d</link><description>Before Earth could breathe, it rusted.&#xA;&#xA;Banded iron formations are ancient striped rocks formed as early oxygen reacted with iron-rich oceans — recording one of the biggest turning points in Earth history.&#xA;&#xA;Read more: https://geoscopy.com/banded-iron-formation-earths-oxygen-record/&#xA;&#xA;#Geology #EarthHistory #Geoscopy</description><pubDate>09 Jun 2026 18:21 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mnussdzjmk2d</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mnupruxgds2r</link><description>Thousands of giant oval wetlands scar the Atlantic Coastal Plain, and many point the same way.&#xA;&#xA;Meteor impact? Ancient waves? Ice Age winds?&#xA;&#xA;The Carolina Bays mystery is one of America’s strangest landscape puzzles.&#xA;&#xA;https://geoscopy.com/carolina-bays-mystery-of-aligned-coastal-ovals/&#xA;&#xA;#Geology #CarolinaBays #EarthScience</description><pubDate>09 Jun 2026 17:27 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mnupruxgds2r</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mntgfxsr622o</link><description>The deepest blue hole on Earth may still not have a known bottom.&#xA;&#xA;Taam Ja’ Blue Hole in Mexico reaches beyond 420 meters, deeper than the Eiffel Tower is tall, and could hide links to vast underwater cave systems.&#xA;&#xA;Read more: https://geoscopy.com/the-taam-ja-blue-hole-the-deepest-blue-hole-in-the-world/&#xA;&#xA;#Geology #OceanScience #BlueHole</description><pubDate>09 Jun 2026 05:06 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mntgfxsr622o</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mns3oavqo22n</link><description>Seashells on Everest? Yes.&#xA;&#xA;Marine fossils near the top of the world reveal an ancient ocean floor lifted into the sky by plate tectonics.&#xA;&#xA;https://geoscopy.com/why-are-there-seashells-on-top-of-mount-everest/&#xA;&#xA;#Geology #Everest</description><pubDate>08 Jun 2026 16:21 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mns3oavqo22n</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mnriqre2b22l</link><description>Lightning can turn sand into glass.&#xA;&#xA;The result is a fulgurite: a fragile, hollow tube that preserves the path of the strike underground, like fossilized lightning.&#xA;&#xA;Read more:&#xA;https://geoscopy.com/fulgurite-the-glass-that-lightning-leaves-behind/&#xA;&#xA;#Geology #EarthScience #Fulgurite #Lightning #Geoscopy</description><pubDate>08 Jun 2026 10:43 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mnriqre2b22l</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mnpoco2zqs2o</link><description>Minecraft is secretly a geology lesson.&#xA;&#xA;It gets amethyst geodes, oxidizing copper, basalt, and diamonds partly right.&#xA;&#xA;But rivers don’t erode, plates don’t move, and diamonds don’t come from coal.&#xA;&#xA;https://geoscopy.com/the-geology-of-minecraft-how-accurate-is-it/&#xA;&#xA;#Minecraft #Geology #EarthScience #Science #Geoscopy</description><pubDate>07 Jun 2026 17:17 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mnpoco2zqs2o</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mnosqzgtes2f</link><description>Diamonds don’t slowly rise to Earth’s surface.&#xA;&#xA;They explode upward.&#xA;&#xA;Born deep beneath ancient continents, they can wait billions of years, until rare kimberlite eruptions blast them to daylight.&#xA;&#xA;https://geoscopy.com/how-diamonds-reach-earth-in-explosive-eruptions/ #geology #diamonds</description><pubDate>07 Jun 2026 09:04 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mnosqzgtes2f</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mnokwzvg6c2a</link><description>Every 26 seconds, Earth quietly pulsates.&#xA;&#xA;A faint seismic pulse repeats from the Gulf of Guinea: too weak to feel, strong enough to be recorded across the planet.&#xA;&#xA;Ocean waves? Volcanism?&#xA;&#xA;Earth’s “heartbeat” is still not fully explained.&#xA;&#xA;https://geoscopy.com/the-26-second-pulse-earths-heartbeat-no-one-can-explain/&#xA;&#xA;#Geology #Seismology</description><pubDate>07 Jun 2026 06:44 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mnokwzvg6c2a</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mnndufimjk2k</link><description>Earth made the Backrooms long before the internet did.&#xA;&#xA;Caves, lava tubes, salt caverns and hidden voids are real liminal spaces, shaped by water, collapse, heat and deep time.&#xA;&#xA;Read the full story:&#xA;https://geoscopy.com/liminal-spaces-in-geology-earths-real-undergrounds-voids/&#xA;&#xA;#geology #caves #EarthScience</description><pubDate>06 Jun 2026 19:05 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mnndufimjk2k</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mnjkp77wjc2e</link><description>At Ol Doinyo Lengai, lava erupts black, flows like motor oil, then turns chalk-white in the air.&#xA;&#xA;It’s Earth’s strangest active lava: rare carbonatite, cooler and runnier than almost any volcanic melt.&#xA;&#xA;https://geoscopy.com/ol-doinyo-lengai-the-black-lava-volcano-that-turns-white/&#xA;&#xA;#Geoscopy #Geology #Volcano #Tanzania</description><pubDate>05 Jun 2026 06:56 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mnjkp77wjc2e</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mnibdtiggs2w</link><description>Lava doesn’t crack randomly.&#xA;&#xA;As basalt cools, it shrinks. The stress breaks the rock into columns, and the most efficient pattern often becomes hexagons.&#xA;&#xA;That’s why places like Giant’s Causeway look almost engineered.&#xA;&#xA;Full article: https://geoscopy.com/why-lava-cracks-into-hexagons-columnar-basalt-explained/&#xA;&#xA;#Geology #Basalt #Geoscopy</description><pubDate>04 Jun 2026 18:36 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mnibdtiggs2w</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mni4pxngac2n</link><description>Deep in the Peruvian Amazon, a river steams at near-boiling temperatures, hot enough to kill animals that fall in.&#xA;&#xA;The strangest part? There’s no active volcano nearby.&#xA;&#xA;So what heats the Shanay-Timpishka?&#xA;&#xA;Read the full story:&#xA;https://geoscopy.com/shanay-timpishka-the-amazons-boiling-river/&#xA;&#xA;#Geoscopy #Geology #Peru #EarthScience</description><pubDate>04 Jun 2026 17:14 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mni4pxngac2n</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mnhhe3btd22x</link><description>That black stain on desert rocks may be more than weathering.&#xA;&#xA;Desert varnish is a thin mineral skin rich in manganese — and microbes may help build it over centuries. That’s why scientists also care about similar coatings on Mars.&#xA;&#xA;Read more: https://geoscopy.com/desert-varnish-microbes-manganese-and-mars/&#xA;&#xA;#Geology #Mars</description><pubDate>04 Jun 2026 10:51 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mnhhe3btd22x</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mnfrq4e3dc23</link><description>Siberia has a wound you can see from space.&#xA;&#xA;The Batagay Megaslump isn’t a crater, it’s collapsing permafrost, exposing ancient frozen ground as it grows year after year.&#xA;&#xA;Read the full story:&#xA;https://geoscopy.com/batagay-megaslump-siberias-growing-permafrost-wound/&#xA;&#xA;#Geology #Permafrost #Siberia #ClimateScience #Geoscopy</description><pubDate>03 Jun 2026 18:51 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mnfrq4e3dc23</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mnfhiy2sz223</link><description>Geologists once rejected the idea: that eastern Washington was carved by floods so huge they reshaped the land in days.&#xA;&#xA;The Channeled Scablands are the scars left behind.&#xA;&#xA;Read: https://geoscopy.com/how-mega-floods-carved-washingtons-scablands/&#xA;&#xA;#Geology #IceAgeFloods #Scablands</description><pubDate>03 Jun 2026 15:49 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mnfhiy2sz223</guid></item><item><link>https://bsky.app/profile/geoscopy.bsky.social/post/3mncwr5svw22o</link><description>In 1958, a rockslide crashed into Alaska’s Lituya Bay and sent water 524 m up a mountainside: the tallest tsunami run-up ever recorded.&#xA;&#xA;A fjord became a launch ramp. 🌊&#xA;&#xA;https://geoscopy.com/lituya-bay-the-tallest-wave-ever-recorded/&#xA;&#xA;#Geology #Tsunami #EarthScience</description><pubDate>02 Jun 2026 15:44 +0000</pubDate><guid isPermaLink="false">at://did:plc:jd57yncw2jgdyy2c52vbb2hp/app.bsky.feed.post/3mncwr5svw22o</guid></item></channel></rss>