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#geology

41 posts30 participants3 posts today
Public
A d d i e B e a l
The rocks at Pemaquid Point Lighthouse for #TextureTuesday. I finally had the chance to visit Pemaquid Point in Bristol, Maine the other day when I happened to be in the area. I was really blown away by the fascinating and beautiful geology of the area around the lighthouse.

According to the Maine Geological Survey, the rocks here are mostly metamorphic with some igneous. The gray layered rock is called gneiss and it was originally sediments at the bottom of the ocean that were metamorphosed 360-415 million years ago into what you see here. The light gray/whitish igneous rock is called pegmatite.

{📷: Sony a7iii}
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#DigitalPhotography #photography #sony #SonyAlpha #SonyA7iii #tamron #pixelfed #maine #MainePhotography #MaineCoast #coastal #lighthouse #LightHousesOfMaine #MaineLighthouse #ocean #sea #explore #geology #rocks #outdoors #LandscapePhotography
A photograph of a geologically-interesting rocky shoreline with a cylindrical white lighthouse and keeper’s house in the background. The rocks are a grayish metamorphic rock called gneiss that is heavily striated due to its origins as a sedimentary rock with many layers. The stripes in the rock run perpendicular to the angle/location the photo was taken from. The rocks are not only banded but also have a slightly wavy or undulating appearance to them. On the right side of the frame there is a band of whitish-gray igneous rock called pegmatite that runs along top a high point in the rock. All of the lines in the rock look like they are running toward the lighthouse.
#LandscapePhotography
Public
Dave Volek

Book Review: The Magician of the Gods

This book starts with the story of J. Harlan Bretz. In the 1920s, Bretz proposed that the scablands in eastern Washington were caused by cataclysmic flooding event rather than gradual erosion. Bretz was almost laughed out the geological profession for making this claim. Decades later, he was vindicated.

Sometimes crazy ideas are proven right.

tiereddemocraticgovernance.org

#tiereddemocraticgovernance
#geology #archaeology

A new democracy will be built by someone like you.
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Sunguramy :nb_lily:

@nev asked if I'd ever been in a lava tube, and the answer is yes, multiple times! Lava tube caves are cool, and are varied in size, shape, and formations, just like limestone caves. Here is a photo in a lava tube cave with my little bat buddy for scale to show some of the variety of textures and colors that can be found. If ya'all like this, I can post some lava tube cave geology / formation type stuff! Comment to let me know what you'd like to see...passage? formations? critters that call these places home?
#geology #volcano #lava #rock #cave #caves #caving #photography #nature

In the middle a small 6" stuffed bat sits on some lava rock. Every section of the photo has different textures left on the passage from how the lava was flowing, dripping, and moving. The ceiling kinda looks like stucco, and has grays and oranges and reds. The right wall high up looks like neurons creating a maze of paths. Mid right wall has circular lines. The floor almost looks like sand in texture and color, but it's not, it's hard as well, rock!
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bse

PhD opening for a project on the behavior of fluids in the crust during the formation of the Scandinavian Caledonides. Department of Geological Sciences, Stockholm University. Fully funded, 4-year position. #geology

Details on the position: su.varbi.com/en/what:job/jobID

su.varbi.comPhD student in Metamorphic petrologyThe Department of Geological Sciences is a department within the Faculty of Science with courses at master's, bachelor's and orientation levels. The department supports a broad range of basic research
Public
Sudelsurium

‚Kugelrund‘

Dracheneier? Nein. Die Moeraki Boulders am Koekohe Beach in Neuseeland sind geologische Raritäten - sogenannte Septarien.

Um die kugeligen Gesteinskonkretionen ranken sich auch Māori-Mythen: Demnach handelt es sich um versteinerte Ladung, die einst vom legendären Kanu Ārai-te-uru gespült wurde.

Halb in den Sand eingegraben, sieht man dicht an dicht große, graubraune Gesteinskugeln am Strand liegen. Die Oberflächen sind von feinen Rissen durchzogen, manche scheinen bald aufzubrechen.
#FotoVorschlag#Neuseeland#geology
Public
Dali
80 meter inside of a volcano of Lemptegy. It was exploited for a pouzzolane but in agreement with the volcanologists that they would conserve certain parts of it. As a result, you can really take a walk inside of it and see how the world evolved. What you can see there on the photo is a volcanic chimney, through which the fresh lava got onto the surface.

#volcano #volcanos #geology #france #auvergne #puydedome #mine #mining #nature #vulcan #volcanoes #lava #history
#history
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Mike

This is cool (to me), I had a physical geology class at UofU and the emeritus professor was kind of losing it, he said plate tectonics was wrong, everything could be explained by triple junctions, like mud cracks... It was kind of great (for the students) because they brought in these specialized profs (retiring the emeritus) who taught us their specialty for a week at a time. But we never heard the reasons for the E/W Uintas, which are beautiful mountains if you ever get a chance 😍

#geology

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