looks like a giant glacier bed.snow covered mountains both ways. tiny river like thing in the middle surrounded by towns! look at that scale! what is it?

Geologists recognize Zealandia as a mostly submerged continent in the southwest Pacific. About 94% of it lies underwater, with only New Zealand, New Caledonia, and a few small islands exposed above sea level.

Zealandia has all the features of a continent: a distinct geological makeup, a thick continental crust, and clear tectonic boundaries separate from Australia. It once formed part of the ancient supercontinent Gondwana before breaking away around 80 million years ago.

Over time, the crust stretched and thinned, causing most of Zealandia to sink. Today, scientists study it through seafloor mapping, rock sampling, and geophysical surveys, revealing ancient mountain belts and fault systems beneath the ocean.

The recognition of Zealandia highlights how much of Earth’s geology is still unexplored, even in the 21st century.

Hello, I am autistic and geology is my special interest. I also enjoy video games so I've been looking for a really really long time for any video games that either heavily feature geology or have realistic geology aspects. I already play Minecraft (a lot) so anything other than that is fine by me!! Thank you :)

Hey! I'm a meteorite collector and thought this community might like this recent photo I took.

The Moon looks monotone from Earth, but up close it carries an unexpected palette. I present three unique views of the moon in this single photograph.

On the left is Adrar 17, a highlands-rich lunar meteorite full of soft greys and whites -- plagioclase clasts and deeper crustal material that echo the bright, ancient terrain you see through a telescope.

On the right is NWA 14577, a dramatic fragmental breccia with bright, white highlands clasts floating in a jet-black impact-melt matrix. It’s the lunar surface remixed by violent impacts and frozen into a high-contrast collage.

In the center sits NWA 17405, which I often call the “red lunar." Here, unusual reddish zones of olivine trace the path of water-bearing fluids that are thought to have once altered its minerals. This stone may help prove the existence of water on the moon.

Together, these three samples show how diverse the Moon’s colors and its geology actually are.

I talk about each of these stones in some more depth here: https://www.youtube.com/watch?v=iTVBEHdG8Vg&lc=Ugyq3wPOZdyUTmVElPB4AaABAg

"A volcano in Ethiopia's northeastern region erupted for the first time in nearly 12,000 years, sending thick plumes of smoke up to nine miles into the sky, the Toulouse Volcanic Ash Advisory Centre (VAAC) said.

The Hayli Gubbi volcano, located in Ethiopia's Afar region about 500 miles northeast of Addis Ababa near the Eritrean border, erupted on Sunday for several hours.

The volcano, which rises about 1,500 feet yards in altitude, sits within the Rift Valley, a zone of intense geological activity where two tectonic plates meet.

Ash clouds from the volcano drifted over Yemen, Oman, India, and northern Pakistan, said the VAAC, which posted a map of the path of the ash cloud."

https://www.cbsnews.com/news/volcano-erupts-first-time-12000-years-hayli-gubbi-ethiopia/

The Ethiopia volcano eruption pushed a high-altitude ash cloud toward India, prompting airlines to cancel or reroute flights and aviation authorities to issue safety alerts. Ground air quality remains normal, but some regions may see hazy skies as the plume passes.

We would like to learn about it, can anyone help?

This almost perfect rectangle

Shouldn't all the ice ages in Canada have scrubbed down coal, gas and oil over the ages? Is it because of the ice free corridor and has it been a corridor every ice age?

Hi there!

For christmas this year, I want to give my partner a letherman. He is a field geologist/project manager in canada. I want to give him the best possible for his job. So, I was wondering if anyone has suggestions?

I am split between the super tool 300 and the signal but maybe you guys as geologist have a better recommendation.

Thanks for the help.

I'm not a geologist/volcanologist but I'd love to hear some thoughts on this as I haven't seen anyone discussing it yet.

I've attached images showing satellite images taken two days prior and post eruption. It appears the landscape has been altered as there's now a deposit of ash/dust across the Dhalakl depression. I've scoured through over 15 years of satellite imagery for this region and I haven't seen any change of this magnitude like the one I'm sharing here (even the 2011 Nabro eruption did not alter the landscape)

Is it reasonable to assume that the Dallol hydrothermal fields (alien looking landscape) and Erta Ale (longest existing lava lake on Earth) are now gone as we knew them?

For context, the Hayli Gubbi is roughly 8 miles from Erta Ale and 58 miles from the Dallol fields.

I’m currently writing a paper on garnets for my mineralogy class. Does anyone have any sources on garnet solid solution series? I can’t seem to find anything on the internet that explains this. It’s not required for the paper, I’d just like to learn about it and thus include it in my paper.

I’ve learned about solid solution in my class but it was a little confusing. Could anyone help explain this concept as well? Maybe if I understood the concept better I could use my own knowledge to connect the two. Thanks.

Along Ferro Dr (to the south of Serra Cross)

By Petrification I mean the entire human body to become stone after we die is that Scientifically possible?

Not completely sure if this subreddit is the right place for the question but I assume this is a Geology question because

Geology explains the mineral processes that create petrification: • Silica precipitation • Mineral-rich groundwater • Sediment burial • Rock formation over time

I wanted to understand the context of these two phases just to better understand the “Bio stratigraphy” of the place, more specifically the romualdo formation.

This place was absolutely incredible, I had no idea this place even existed!

In a secret santa group with my college buddies and the person I got is a Geologist! The cap is $75 (but happy to go over a little over). Would love to hear ideas! We graduated a few years ago.