History of Geology
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historyofgeology.bsky.social
History of Geology
@historyofgeology.bsky.social
A channel dedicated to the #History of #Earth #Sciences 🌍 run by an Alpine #Rock G(e)o(logist)at ⛰️🔨🐐
On November 13, 1985, a series of lahars triggered by medium-sized eruption of Nevado del Ruiz volcano kills an estimated 25.000 people in the town of Armero, Colombia.
www.earthmagazine.org/article/benc...
November 13, 2025 at 7:20 PM
Special issue for the 40th anniversary of the the November 1985 eruption of Nevado del Ruiz volcano that killed an estimated 25,000 people in the town of Armero
www.nature.com/collections/...
November 12, 2025 at 11:26 AM
November 12, 1912, British explorer Robert Scott's diary & body found in Antarctica. The fossils collected by his expedition will later prove continental drift ⸙
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November 12, 2025 at 11:07 AM
November 5, 1728, birthday of Austrian priest, botanist, zoologist, mineralogist and alpinist Franz Xaver Freiherr von Wulfen.
In 1782 he published a comprehensive mineralogical work of the minerals of Carinthia, including a detailed description of a lead molybdate Pb[MoO4]
November 5, 2025 at 7:46 PM
November 5, 1881, died on this day Irish engineer Robert Mallet.
A self-educated geologist, he created the first seismicity map plotting the epicenters of earthquakes as they happened over time
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November 5, 2025 at 7:45 PM
November 4, 1922, a mysterious gemstone found over 100 years ago in Tutankhamen’s tomb likely formed when a meteorite hit Earth 💎☄️
www.forbes.com/sites/davidb...
November 4, 2025 at 7:32 PM
November 1, 1930 after reaching the isolated meteorological station "Eismitte" on the ice-sheet of Greenland, Wegener & his team celebrate his 50th birthday with some dried fruit and chocolate - a rare luxury in Arctic conditions.
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November 1, 2025 at 5:43 PM
November 1, 1880, birthday of German geophysicist & meteorologist Alfred Wegener.
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November 1, 2025 at 5:41 PM
October 31, 1791, French adventurer Diedonné de Dolomieu writes a letter to Swiss mineralogist Nicolas-Théodore de Saussure requesting help in identifying a strange "grayish limestone"
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October 31, 2025 at 5:46 PM
New Study Reveals Secrets Behind The Vibrant Colors Of Ammolite Gemstone 🌈🐚
www.forbes.com/sites/davidb...
New Study Reveals Secrets Behind The Vibrant Colors Of Ammolite Gemstone
Ammolite is a rare gemstone formed from the fossilized shells of animals. Microscopic structures preserved within these shells give rise to its uniquely vivid and iridescent coloration.
www.forbes.com
October 30, 2025 at 8:10 PM
Surface rupture of the October 30, 2016, Norcia earthquake in central Italy.
The Mw 6.5 earthquake destroyed the towns of Norcia and Castelluccio, nine people were injured. Just a week earlier the earthquake of Amatrice killed 300 people.
October 30, 2025 at 8:08 PM
For the first time, scientists have observed how a subducting oceanic plate actively breaks apart into fragments, forming microplates in a slow, step-by-step collapse.
www.forbes.com/sites/davidb...
Scientists Observe The “Death” Of A Subducting Tectonic Plate For The First Time
For the first time, scientists have observed how a subducting oceanic plate actively breaks apart into fragments, forming microplates in a slow, step-by-step collapse.
www.forbes.com
October 29, 2025 at 7:42 PM
October 29, 1899, died #OTD day Irish geologist, surveyor & cartographer Patrick Ganly. He described cross-bedding in geological strata, which allows geologists to determine the “way up” of rock layers (i.e., their original orientation) — a fundamental tool in stratigraphy
October 29, 2025 at 7:42 PM
October 29, 1882, birthday of Scottish mineralogist and petrologist Samuel James Shand.
At college his first interest was chemistry, to this he soon added an avid curiosity about geology, combing both in his study of igneous rocks and mineral assemblages
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October 29, 2025 at 7:40 PM
October 29, 1831, birthday of American paleontologist Othniel Charles Marsh. He gave us Brontosaurus, Stegosaurus, Triceratops... along with 83 other species of prehistoric beasts & not to forget the Bone Wars 🦴
www.podbean.com/media/share/...
October 29, 2025 at 7:40 PM
The breakup of an ancient supercontinent 1.5 billion years ago transformed #Earth’s surface environments, paving the way for the emergence of complex life, according to a new study🌍🦠
www.forbes.com/sites/davidb...
Supercontinent Breakup Paved The Way For Complex Life On Earth
The breakup of an ancient supercontinent 1.5 billion years ago transformed Earth’s surface environments, paving the way for the emergence of complex life, according to a new study.
www.forbes.com
October 28, 2025 at 7:17 PM
October 28, 1965, geophysicist Edward Bullard, using the first "tectonic" computer simulations, publishes a paper with the title "The Fit of the Continents around the Atlantic."
earthguide.ucsd.edu/eoc/eoc_teac...
October 28, 2025 at 4:53 PM
#MineralMonday 💎 VS #Alien 👾

Goethite ( α-Fe3+O(OH)) aggregate resembling Big Chap

www.bressan-geoconsult.eu/geological-r...
October 27, 2025 at 7:51 PM
October 27, 1827, birthday of Italian geologist and paleontologist Igino Cocchi.
For years he argued that the Italian kingdom needed a modern geological map. In 1866 he was appointed director of a committee to work out guide lines for the future geological survey...
October 27, 2025 at 7:49 PM
October 27, 1930, birthday of American mathematician and computer programmer Gladys Mae West.
She created an accurate model of the Earth's shape, and her work on satellite geodesic modelling laid the foundations for GPS technology 🛰️🌐
en.wikipedia.org/wiki/Gladys_...
October 27, 2025 at 7:48 PM
October 27, 1763, birthday of Scottish-American geologist William Maclure who is credited with producing the first true geological map of the United States of #America 🇺🇸⚒️
forbes.com/sites/davidb...
October 27, 2025 at 7:48 PM
October 25, 1884, birthday of Japanese geophysicist Montori Matuyama.
In the late 1920s, while studying volcanic rocks in Japan and Manchuria, he found that some rocks were magnetized in the opposite direction to Earth’s present magnetic field.
October 25, 2025 at 5:47 PM
A team of geologists and biologists resurrected ancient microbes that had been trapped in ice — in some cases for around 40,000 years 🧊🦠
www.forbes.com/sites/davidb...
Ancient Microbes ‘Brought Back To Life’ After 40,000 Years
A team of geologists and biologists resurrected ancient microbes that had been trapped in ice — in some cases for around 40,000 years.
www.forbes.com
October 24, 2025 at 7:28 PM
October 24, 1902, after resting for over 500 years, Santa Maria volcano in Guatemala erupts killing 6.000 people and becoming one of the three largest eruptions (a VEI 6) of the 20th century.
volcano.si.edu/volcano.cfm?...
October 24, 2025 at 7:23 PM