#Tag · bonfire.cafe

Andrew Wooldridge 🎆 boosted

Miss Gayle

Timeline cleanse - some interesting geology sciency stuff.

Link: https://www.atlasobscura.com/articles/gravity-hole-indian-ocean

#Geology #Gravity #Science #Cartography

The Mystery of the World’s Largest and Deepest Gravity Hole
The sea level here is hundreds of feet lower than the rest of the ocean.
by Frank Jacobs, November 3, 2023

Did You Know?

In the 20th century, a Dutch scientist discovered a gravitational anomaly in the Indian Ocean. The earth’s pull was significantly lower in this region of over a million square miles. More recent researchers believe that they’ve figured out the explanation.

The world's largest gravity hole...The piece of sunken ocean is the size of India. ESA/HPF/DLR

The gravity hole in the Indian Ocean is significantly deeper and bigger than any other gravitational anomaly. ESA – GOCE High Level Processing Facility — The Mystery of the World’s Largest and Deepest Gravity Hole The sea level here is hundreds of feet lower than the rest of the ocean. by Frank Jacobs, November 3, 2023 Did You Know? In the 20th century, a Dutch scientist discovered a gravitational anomaly in the Indian Ocean. The earth’s pull was significantly lower in this region of over a million square miles. More recent researchers believe that they’ve figured out the explanation. The world's largest gravity hole...The piece of sunken ocean is the size of India. ESA/HPF/DLR The gravity hole in the Indian Ocean is significantly deeper and bigger than any other gravitational anomaly. ESA – GOCE High Level Processing Facility

hypebot boosted

Bob Tregilus

@elaterite@mastoart.social · 2 weeks ago

Strata and shadow.

#Geology #Desert #Canyon #Utah #Travel #RoadTrip #Photography #Darktable

A black and white landscape photo of several layers of sandstone features in a canyon. Form the bottom up, there are dark shadows of rugged jagged features casts onto a highly eroded bare cliff face. A medium dark geoloic layer is seen above the shaodw. That transitions into a bright light colored geoloic layer with an eroded flat wide spire that casts another smal shadow onto the cliff in the background. The cliff face in the background is again the medium dark geolic layer transitioning into a lighter layer at the top. A thin strip of dark clouds is above the cliffs walls.

Miss Gayle

@MissGayle@urbanists.social · 2 weeks ago

Timeline cleanse - some interesting geology sciency stuff.

Link: https://www.atlasobscura.com/articles/gravity-hole-indian-ocean

#Geology #Gravity #Science #Cartography

hypebot boosted

Bob Tregilus

@elaterite@mastoart.social · 2 weeks ago

Beauty and the beast.

(Note the universal radiation symbol sign inside the gated mine on the right. Those are abandoned uranium mines. It's not wise lingering at this place for very long. In other words, eat your lunch somewhere else.)

#Travel #RoadTrip #Mine #Geology #Nuclear #Abandoned #Landscape #Photography #Darktable

A color landscape photo of a rugged vertical light-red sandstone cliff face. In the foreground is a short cliff maybe ten or twelve feet high. Underneath a shelf like overhang are mine openings on the right and on the left that have been closed with iron bars to keep people out. Looking closely, a yellow sign with a red three leaf flower like design sign can be seen inside the mine opening. It is a sign that warns of dangerous radiation levels inside of the mine. Above and behind the shelf like overhang is a tall, hundred foot-plus sheer cliff. The sky is clear and bright blue.

Bob Tregilus

@elaterite@mastoart.social · 2 weeks ago

Beauty and the beast.

#Travel #RoadTrip #Mine #Geology #Nuclear #Abandoned #Landscape #Photography #Darktable

hypebot boosted

Bob Tregilus

@elaterite@mastoart.social · 2 weeks ago

This wonderful sandstone formation, unfortunately named by colonialists as "De Gaulle and His Troops" in the further unfortunately named by colonialists "Valley of the Gods," is, no matter how poorly named, a favorite feature on mine. Here it is beautifully lit as the sun broke over a nearby mesa top.

#Geology #BlackAndWhite #Utah #Sunrise #Desert #Canyon #Landscape #Travel #RoadTrip #Photography #Darktable

A black and white landscape photo of a highly eroded sandstone feature. The tall shear hills with conical shaped eroded debris at their base sit in a undulating sagebrush plain. The feature angles across the frame from center-right and disappearing off the center-left. On the far right is a vertical twin spire like a two prong fork. The prong furthest right is narrow and short while the prong on the left is wider and taller. Behind the feature on the right is a second blocky sandstone mass that looks like a large building or apartment complex with a lot of eroded material surrounding its base. A beam of sunlight strikes the feature on the far right and angles down lighting the base of the large block on the left. Otherwise the scene is dark and the sky is filled with dark clouds.

Bob Tregilus

@elaterite@mastoart.social · 2 weeks ago

Strata and shadow.

#Geology #Desert #Canyon #Utah #Travel #RoadTrip #Photography #Darktable

Bob Tregilus

@elaterite@mastoart.social · 2 weeks ago

#Geology #BlackAndWhite #Utah #Sunrise #Desert #Canyon #Landscape #Travel #RoadTrip #Photography #Darktable

Hacker News

@h4ckernews@mastodon.social · 2 weeks ago

Scientists Uncover the Universal Geometry of Geology (2020)

https://www.quantamagazine.org/scientists-uncover-the-universal-geometry-of-geology-20201119/

#HackerNews #Scientists #Universal #Geometry #Geology #Research #QuantumPhysics

hypebot boosted

Bob Tregilus

@elaterite@mastoart.social · 2 weeks ago

Stupid winter. Cabin fever has set in and I'm already jonesing for canyon country. Right about now unplugging and dropping into a remote canyon never to be seen again sounds like a good idea, right?

#Desert #Canyon #Cave #Geology #Winter #Landscape #Photography #Darktable

A color landscape photo looking out from inside an oval shaped cave. The foreground is dark with some features of sand and rocks visible. The oval of the cave opening is tilted about ten degrees toward the left. Outside of the opening is a beige colored landscape of rolling sandstone hills dotted with small trees. There's a mountain range in the distance. A silver of blue sky is visible at the top of the cave opening.

Bob Tregilus

@elaterite@mastoart.social · 2 weeks ago

Stupid winter. Cabin fever has set in and I'm already jonesing for canyon country. Right about now unplugging and dropping into a remote canyon never to be seen again sounds like a good idea, right?

#Desert #Canyon #Cave #Geology #Winter #Landscape #Photography #Darktable

hypebot boosted

Bosque Bill

@bosquebill@techhub.social · 3 weeks ago

Mudstone
Canyonlands National Park, UT

#TextureTuesday #photo #geology #NationalPark #Utah

4 media

Overhead view of compressed sandstone flat on the ground showing ripples—mudstone.
©BosqueBill.com — Overhead view of compressed sandstone flat on the ground showing ripples—mudstone. ©BosqueBill.com

Bosque Bill

@bosquebill@techhub.social · 3 weeks ago

Mudstone
Canyonlands National Park, UT

#TextureTuesday #photo #geology #NationalPark #Utah

4 media

Jonathan Schofield boosted

💧🌏 Greg Cocks

@GregCocks@techhub.social · 3 weeks ago

A Stunning Map Of The Atlantic Ocean Seafloor — And One Woman’s Pioneering Quest To Publish It
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The geology of the ocean floor is truly spectacular — perhaps even more than land geology. Unfortunately, it's really hard to study.
--
https://www.zmescience.com/other/geopicture/atlantic-ridge-marie-tharp-geology-rep/ <-- shared technical article
--
https://en.wikipedia.org/wiki/Marie_Tharp <-- shared Wikipedia page, Marie Tharp
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https://marietharp.ldeo.columbia.edu/about-marie-tharp <-- shared page about Marie Tharp, Lamont-Doherty Earth Observatory, Columbia University
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https://youtu.be/gsQGOJtwdv0?si=PQsVzv98gutL3hpX <-- shared video, “… Why We Celebrate Marie Tharp”
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#spatial mapping #mapmaker #cartographer #MarieTharp #remotesensing #sonar #earthobservation #history #model #modeling #spatialanalysis #geology #seafloor #ocean #marine #oceanfloor #AtlanticOcean #geologist #pioneering #paleoceanographer #marinegeology #OceanSpeaks
@Women+ in Geospatial | #WomenInGeoscience

4 media

About Marie Tharp | Lamont-Doherty Earth Observatory

Marie Tharp - Wikipedia

ZME Science

A stunning map of the Atlantic Ocean seafloor — and one woman's pioneering quest to publish it

The geology of the ocean floor is truly spectacular — perhaps even more than land geology. Unfortunately, it's really hard to study.

Ryan M 🥄

@rpmik@avgeek.social · 3 weeks ago

Apparently a landslide caused this! “Gas line explosion in Castaic prompts 5 Freeway closure, shelter-in-place order” #CAWx #Geology #Landslide https://www.latimes.com/california/story/2025-12-27/gas-line-explosion-in-castaic-prompts-freeway-closure-shelter-in-place-order

Los Angeles Times

Gas line explosion in Castaic prompts 5 Freeway closure, shelter-in-place order

Los Angeles County firefighters were responding to a gas line explosion in Castaic on Saturday, which prompted the CHP to close a portion of the 5 Freeway.

💧🌏 Greg Cocks

@GregCocks@techhub.social · 3 weeks ago

4 media

About Marie Tharp | Lamont-Doherty Earth Observatory

Marie Tharp - Wikipedia

ZME Science

A stunning map of the Atlantic Ocean seafloor — and one woman's pioneering quest to publish it

The geology of the ocean floor is truly spectacular — perhaps even more than land geology. Unfortunately, it's really hard to study.

Federico Mena Quintero and 1 other boosted

Jerry D. Harris 🦕👣

@dinogami@sauropods.win · last month

#silentsunday #photography #geology #colorado

A wall of rock exposed in the Black Canyon of the Gunnison in western Colorado. The wall consists of dark grey-ish, Precambrian-age gneiss and schist dissected by bands of pink, granitic, also-Precambrian-age pegmatites (igneous intrusions that were injected into fractures in the gneiss long after it formed and while it was all still buried deep underground). The metamorphic rocks formed around 1.8 billion years ago, but existed as sedimentary rocks of undetermined age before being metamorphosed. The pegmatites, which include crystals upward of 2 m (6 ft.) in length, are a bit younger at around 1.35 billion years old. The green plant life at the top of the wall grows on mudstone exposures of the Upper Jurassic (~150 million year old) Morrison Formation, which has produced a few dinosaur fossils in the park.

Robert Bell boosted

Ian Kluft :verified:✈️🎈🌋

@ikluft@avgeek.social · last month

@ai6yr Though an M7.6 quake is big for its effects on land, it's on the small end for causing tsunamis. When we see news like this, keep in mind a rule of thumb for estimating #tsunami risk from undersea #quake magnitude:
M7+ -> localized tsunami possible
M8+ -> regional tsunami likely
M9+ -> ocean-crossing tsunami expected
#geology

The Japan Times

@thejapantimes@mastodon.social · last month

Japan has lifted a special advisory for further earthquakes and tsunamis in the Hokkaido and Sanriku coastal areas, though people are still urged to maintain vigilance in the wake of Dec. 8’s magnitude 7.5 temblor. https://www.japantimes.co.jp/news/2025/12/16/japan/japan-quake-advisory-lifted/?utm_medium=Social&utm_source=mastodon #japan #earthquakes #meteorologicalagency #geology #tohoku #hokkaido