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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 13/08/2026

This is probably the most beautiful listvenite I have ever seen in my entire life. From the metasomatized Thetford ophiolite, next to the contact with granodiorite ⚒️ #geology #serpentinite #ultramaficrocks

outcrop of listvenite, a type of rock consisting of magnesite, talc, and quartz

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 12/08/2026

I can finally say that I have enjoyed my North America travel. Thanks for all the kind souls that helped me find and locate Argiope aurantia in Quebec, Canada. I am super happy about this sighting! 😊 🕷️ #argiope #spiders

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

Shoji Nishimoto / 西本昌司 @nishimoto.rocks · 09/08/2026

A typical euhedral crystal of hornblende in the wall cladding of the Daisen Museum of Nature and History.

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

Bob McIntosh @scotfot.bsky.social · 09/08/2026

Birch shieldbugs

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 10/08/2026

If somebody from Canada wants to help me find Argiope aurantia while I am here, they would make me the happiest man on Earth :)

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 03/08/2026

Just flew over Mt St Helens but unfortunately it was hidden by the clouds. At least I got a good view of Mt Rainier!

Mt st helens behind the clouds (the one at the horizon is another volcano(

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 24/07/2026

For #FridayFold I would like to bring to your attention some folded quartz + carpholite veins in Permian metasandstones. Canaloni - Farma stream Monticiano-Roccastrada, Italy ⚒️ #geology

folded quartz vein in metasandstone with coin for scale

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 23/07/2026

See the green guy? That is a pretty spinel in a cool rock, a felsic granulite from the ophiolites of Liguria, Italy What's a granulite doing within ophiolites? Well, I am sorry to clickbait you but I finished the space, so the answer is in the following post. ⚒️ #geology #ThinSectionThursday

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 22/07/2026

Written on the walls of the Department of Earth Sciences in Pisa, Italy. It can be translated as "when the time comes, the one who knows will know, and the one who doesn't will damage himself" Francesco Homisi (1620)

Plate on a wall with incription 'atenpo atenpo chi sa sa e chi non sa su danno Francesco Homisi Anno 1620'

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 21/07/2026

Albite crystals with internal foliation patterns defined by tiny graphite inclusions in a schist from Gorgona Island, Italy. FOV 3 mm "Ciao Gianni. Grazie per avermi portato a Gorgona" ⚒️ #geology

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 20/07/2026

Nice isoclinal folds in marbles from the Island of Gorgona, Italy. This place is a prison where you need a permit to go and another special permit to shot photos, so please enjoy something that's really hard to photograph 😘 ⚒️ #geology

folded marble outcrop with coin for scale

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 16/07/2026

#ThinSectionThursday Round olivine crystals, completely transformed to serpentine with the typical 'mesh texture', surrounded by altered calcic plagioclase in a troctolite (an olivine-rich gabbroic rock). Width: 3 mm CPL Mattarana Quarry, Sestri Levante, Liguria, Italy

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

Callan Bentley @callanbentley.bsky.social · 11/07/2026

Hiked up Sourdough Canyon south of Bozeman, in the Gallatin Range, to view this amazing garnet-bearing amphibolite. ⚒️

A large rock buried in the soil with a pencil for scale. The pencil has black bars on its side that are 1 cm long. The rock is mostly black/dark gray, but it has ~40% of its volume made up by large, well formed reddish-colored garnet crystals that show as polygonal cross sections.

Close up of the rock - showing an area particularly rich in the big blocky reddish garnet crystals, surrounded by much finer grained black and white minerals (amphibole and plagioclase feldspar, probably). The pencil tip provides a sense of scale.

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

Dr. Judith Hubbard @judithgeology.bsky.social · 25/06/2026

⚒️ 🧪 A catastrophic earthquake just struck northern Venezuela. Large buildings have collapsed, and the USGS PAGER is forecasting thousands of fatalities. Our colleague in Caracas, Dr. Frank Audemard, has shared with us what the earthquake felt like and footage from the region. Here’s what we know.

earthquakeinsights.substack.com

Catastrophic M7.5 earthquake strikes northern Venezuela

Severe damage; collapsed buildings; significant fatalities possible

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

Cody Mason @cosynomad.bsky.social · 23/06/2026

I love this view of the relatively thin interval of red beds barely exposed in a sea of Triassic dolomite. Contrast! 🤌⚒️

View of steep dolomite outcrops. A small exposure of res colored strata peak through vegetation and rock debris.

Zoomed in view of red colored beds sandwiched between light colored dolomite.

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 16/06/2026

I recently had the opportunity to partecipate to this research I am really glad to share here. Ambient Noise Tomography at the scale of the Tuscan region (TEMPEST) revealed the existence of huge reservoirs of magma below active geothermal fields #geology #geophysics ⚒️ www.nature.com/articles/s43...

Sketch showing the Tuscan crust sliced and overlain with ANT anomalies showing the presence of low-velocity anomalies below Larderello and Amiata (magma). Note that the vertical scale is exaggerated.

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 15/06/2026

1/2 Today my first (and only) spider paper was accepted! By browsing thousands of Argiope spider observations from India, we found that Argiope undulata is a species completely distinct from A. pulchella and was, thus, resurrected! 🥳 Link to the article: rdcu.be/fn7V4

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 04/06/2026

Good news, everyone! I have moved out of Italy (again) and accepted a position at VEMA Hydrogen. I will be working on Engineered Mineral Hydrogen in France from now on 💪

static.klipy.com

Professor Farnsworth: Good News, Everyone!

Alt: Professor Farnsworth: Good News, Everyone!

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

Shoji Nishimoto / 西本昌司 @nishimoto.rocks · 22/05/2026

Hornblende in "Kuro-Kurama" - diorite or gabbro from Kurama, Kyoto, Japan. FOV=ca.2 mm #thinsection #petrology #petrography #polarizingmicoscope

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 21/05/2026

My PhD advisor, colleague, and friend, Giovanni (Gianni) Musumeci passed away prematurely this week. Gianni dedicated his life to the study of the crystalline basements of Sardinia and the Tuscan Archipelago. It is thanks to him that I chose this path. Ciao Gianni, grazie di tutto

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Jacek Szczygieł @speleojacek.bsky.social · 20/05/2026

Samara Canyon on #Crete - wet dream of geomorphologist with background in structural geology

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

iNaturalist @inaturalist.bsky.social · 16/04/2026

Nature is everywhere, even in the busiest cities. From April 24–27, over 100k people around the world will step outside & photograph the wild nature around them for the #CityNatureChallenge — the largest annual community science event. 🧵⤵️

A collage of nature, including a green snake, a songbird, a yellow flower, an iridescent beetle, a clownfish, and a frog on a lilypad.

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

Callan Bentley @callanbentley.bsky.social · 29/03/2026

Beautiful bedded/laminated and bioturbated limestone (gray) + dolostone (yellow) in the Great Valley near Inwood, West Virginia. ⚒️

Yellow tan and dark gray banded sedimentary rock with fingers for scale. All kinds of smaller scale textures (burrows, etc.) cut and augment the 1-15 mm thick layers.

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

Callan Bentley @callanbentley.bsky.social · 25/03/2026

Juggling far too many things. Feeling as sheared out as these Angel Island serpentinites. ⚒️

Green lumpy rock with anastomosing foliation. Pencil for scale.

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 23/03/2026

"Dear Dr. Samuele Papeschi, We are delighted to inform you that your manuscript titled "P-T modeling constrains the depth of emplacement of the Porto Azzurro Pluton and implies minor exhumation caused by the Zuccale Fault (Island of Elba, Italy)", has been accepted for publication in JMG."

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

Cormac MacFhionnlaoich @cormacscoast.bsky.social · 14/03/2026

A stormbeach stone stuffed with Goniatite fossils. Remnants of a distant time when their shells littered the sea floor. County Clare, Ireland. Cormacscoast.com walking tours

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 17/03/2026

A fleet of TIE fighters released by a mighty star destroyer OR Tiny diopside grains associated with vesuvianite in calcilicate rock? ⚒️ #geology #starwars

a SEM image showing minerals in thin section

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 13/03/2026

Silence please - reaction in progress The thin grey rim around white mica is chlorite, which was likely overgrowing white mica due to the release of Mg from dolomite in this contact metamorphosed marble. ⚒️ #geology #minerals

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

Dr. Win @paleowin.bsky.social · 11/03/2026

Help geo/paleo hive mind! A student asked how much time is represented in a band of a banded iron formation and not only am I clueless, but my Google Scholar search didn’t yield a clear answer.

Banded iron in a cut and polished side roughly 6” long in a vertical orientation compared to image.

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

Callan Bentley @callanbentley.bsky.social · 11/03/2026

Lovely low angle normal fault in Devil's Slide turbidites. ⚒️

Tilted high contrast sedimentary rock layers displaced along a central crumbly zone, top downhill to the left

Tilted high contrast sedimentary rock layers displaced along a central crumbly zone, top downhill to the left, annotated with arrows

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 03/03/2026

I have a new camera for field photography and I am not afraid to use it!

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

iNaturalist @inaturalist.bsky.social · 26/02/2026

Never miss a chance to get face-to-face with a harvestman. This is the stunning subspecies Algidia viridata ssp. bicolor, endemic to New Zealand!

Close-up photographs of a naturally green harvestman (Algidia viridata ssp. bicolor) with a bumpy, textured body that resembles moss or algae. The arachnid's long spiny legs and bumpy body are shown from multiple angles against a blurred green background.

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 20/02/2026

Superman! ...according to normal people. An S-shaped quartzite clast in a cataclasite, according to geologists. FOV 3 mm ⚒️ #geology

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 17/02/2026

They look like experimentally deformed samples, but they actually are natural samples! Felciaio Shear Zone, Island of Elba ⚒️ #TectonicsTuesday #geology

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Reposted by Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪

lukelukeluke @lukelukeluke.bsky.social · 15/02/2026

Here are some nice mushrooms

A family of splitgill mushrooms grow from the bottom of an upturned turn like a cluster of fireworks exploding above the young spring growth of the forest floor. All photos by me

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Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪 @calamitaman.bsky.social · 16/02/2026

Ultra-thin sections of marbles are another story! Strongly deformed calcite grain with deformation twins and recrystallized new grains forming all around. FOV 3 mm Ortano Marble, Elba ⚒️ #geology

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Samuele Papeschi サムエレ パペスキ | Geology is the way ⚒️🧪

Samuele Papeschi サムエレパペスキ | Geology is the way ⚒️🧪