For all things geology, including serious discussions, memes, field photos, rockhound questions, and more. See also: Mining, Geophysics, Geology Careers, and !earthscience@mander.xyz
General rules: must be geoscience related; must adhere to lemmy.ca moderation rules; no pseudoscience.
About 240 miles long, Utah's Wasatch Fault stretches along the western edge of the Wasatch Mountains from southern Idaho to central Utah, running through Salt Lake City and the state's other population centers. It's a seismically active normal fault, which means it is a fracture in Earth's crust tha...
Archive link: https://archive.is/SmCzU
Beneath a forgotten supervolcano in the American West lies a deposit that could quietly disrupt the global energy race. Scientists uncovered minerals with unexpected concentrations. The real surprise isn’t just how much was found—but how it got there.
British & Exotic Mineralogy: All 2,242 illustrations from James Sowerby’s compendium of knowledge about mineralogy in Great Britain and beyond, drawn 1802–1817 and arranged by color.
All 2,242 of James Sowerby’s illustrations from his compendium of knowledge about mineralogy in Great Britain and beyond published between 1802 and 1817 and arranged by color.
Basalt is the main bedrock of much of the Pacific Northwest, owing to the massive Columbia River basalt flows over ten million years ago. This flood basalt province erupted from numerous vents in E…
A Landslide Just Blocked a Major River in Canada; Now 20,000 are at Risk
Please do not explore the evacuated locations and currently bare riverbed as you could be swept away without any prior warning
Country: Canada
Province: BC
Local Regions: Chilcotin River, Fraser River
Biscuit Basin closed in Yellowstone National Park after massive explosion - East Idaho News
YELLOWSTONE NATIONAL PARK — Biscuit Basin at Yellowstone National Park is temporarily closed following a massive explosion that was caught on camera Tuesday morning. The “localized hydrothermal explosion” occurred near Sapphire Pool around 10:20 a.m., according to a news release from the park. Video...
How a 7.1 magnitude deep mantle earthquake was possible July 11th 2024 Indonesia
Geology Hub: https://www.youtube.com/watch?v=LoRx-tUzbjw
Interesting description of the 3 phases involved when such deep mantle earthquakes have a theoretical limit of 3.8 magnitude.
Foliation with slatey cleavage perpendicular to bedding
Geology Professor Shawn Wilsey on location with a twisted slate rock unit in Idaho. (8:12 minutes)
https://en.wikipedia.org/wiki/Foliation_(geology)
Foliation with slatey cleavage perpendicular to bedding - Giggity Giggity
Frequent small and occasional medium-size earthquakes strike between 100-400 miles (160-650 km) off a section of the West Coast of North America. These occur on or near the boundary between the Pac…
Some background on the earthquake swarm off the Vancouver Island coast.
Veins or something else?
These look to me like regular intrusive iron rich veins. Boulder is about 1m across, and sandstone/mudstone, area is volcanic.
I am not a geologist.. any ideas?
How do you polish bubbled igneous rock
Brand new amateur collector here, I have a piece of a rock that im trying to identify that is covered in what seems to be iron, which is hiding this bright blue rock ive never seen before, however the rock is full of bubbles and is extremely jagged, is there a way to examine and polish without harming the shape
Haughton Impact Crater, Devon Island, Canada
cross-posted from: https://lemmy.ca/post/14740589
high arctic desert. Yes there's water, but no real vegetation.
What lurks below doesn’t always stay beneath the sand.
