/r/geology

Photograph via snooOG

The scientific study of the origin, history, and structure of the Earth.

The scientific study of the origin, history, and structure of the Earth.

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/r/geology

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1

Are there parts of the world that have never been underwater?

Just wondering if there are any areas around the world that have always been above water since that bit of continental crust formed. Never under a shape or inland sea, delta, etc. Presumably this would exclude any areas with sedimentary rocks in the stratigraphy?

1 Comment
2024/10/15
22:20 UTC

5

Appalachian Mountains

I have a limited knowledge of geology. It's one of the fields I would like to know more about. Are the Appalachian Mountains one of the oldest on the world? I thought I heard that they may be.

1 Comment
2024/10/15
21:03 UTC

0

What does research taste like?

And yes I actually wanna know what the rocks taste like

5 Comments
2024/10/15
20:49 UTC

103

Why are there not more Grand Canyons?

25 Comments
2024/10/15
20:35 UTC

6

Made an educational video on Taiwan jade (nephrite)

This will be the first of many educational videos. I’m trying to keep them as simple as possible. So, of course some more nuanced concepts behind metasomatism and the formation of nephrite are left out.

Please let me know what you think, share it with folks if you’d like.

1 Comment
2024/10/15
16:21 UTC

221

I'll never see them the same

I've only had one lesson on these plots and I already know these things are gonna be the bane of my existence by the end of my course lol

10 Comments
2024/10/15
15:24 UTC

0

I really need your help with TRINITITE!

I am trying to get my hands on some Trinitite but I don't know which ones are authentic. It would be extremely helpful if you could suggest some sites where I can get authentic Trinitite possibly with an authenticity certificate. Thanks! :-)

6 Comments
2024/10/15
13:10 UTC

573

Can this be considered a single mountain range?

86 Comments
2024/10/15
12:12 UTC

18

Beach in Co. Wexford, Ireland

2 Comments
2024/10/15
12:07 UTC

0

Lake Superior Agates

0 Comments
2024/10/15
04:25 UTC

24

Pegmatite Dike

Does anybody see the metamorphic layering bend toward the dyke on the side closest to the viewer? That would suggest left lateral movement (not implying that this is a fault) doing dike emplacement. Maybe I am seeing things but if you look at the opposite side near the sunglasses it seems like the beds are becoming parallel with the dike margin. That would be consistent with the movement I described above but once again I may be totally seeing things that aren't there. By the way this is in coastal Maine Paleozoic rocks.

0 Comments
2024/10/15
02:34 UTC

64

Colorado National Monument

Actually just off the the Monument. 4WD needed.

5 Comments
2024/10/15
02:30 UTC

201

Moab Utah

5 Comments
2024/10/15
01:55 UTC

0

2 Billion Years of Life

"Yohey Suzuki, the lead researcher and an associate professor at the University of Tokyo’s Graduate School of Science, explained, “We didn’t know if 2-billion-year-old rocks were habitable. Until now, the oldest geological layer in which living microorganisms had been found was a 100-million-year-old deposit beneath the ocean floor, so this is a very exciting discovery. By studying the DNA and genomes of microbes like these, we may be able to understand the evolution of very early life on Earth.”

https://preview.redd.it/oy49u3w2erud1.png?width=1084&format=png&auto=webp&s=3e8ced7454e74955b321ce4be1409c9e40e8a410

3 Comments
2024/10/14
17:45 UTC

19

Here's a fun one. Edge of Appalachian/Allegany plateau. Found where they get pea gravel?

11 Comments
2024/10/14
17:28 UTC

7

Samples of (what i believe is) serpentine found in an intermediary region between Hardyson formation and Hornblende Gneiss. Also a sample of large crystal faces (unsure of origin as it was found in a wash). Lehigh County, PA, collision region of Lehigh River and New England Upland (Reading Prong)

2 Comments
2024/10/14
17:10 UTC

20

Just visited the scablands

WOW! I'm not geologist but my god the history on display there was BREATHTAKING! Has anyone else been?

7 Comments
2024/10/14
17:03 UTC

207

Applachian syncline

2 Comments
2024/10/14
13:34 UTC

0

If I knew an area contained fire agate could I identify the best spots to find it with google maps?

I have access to an area I know has fire agate because I’ve found it there. I’ve read some about how it formed but I was curious if there is a way to use google maps/satellite imagery to find the most likely spots to find it in that area based on things like lava flows etc.

2 Comments
2024/10/14
05:19 UTC

1

Books about geological survey

Hej, I'm here for advice on books to read. I want to learn more about load caring capacity of different soils, and layers underground. I'm a complete novice in this. Could this community recommend a book from which to start?

0 Comments
2024/10/14
07:52 UTC

0

Hey fellow geology students! I'm currently pursuing my bachelor's in geology and I was wondering what are some cool aesthetic ideas we can embrace in our daily lives to avoid those 'static corners' and make things more exciting?

Whether it's your study space, outfits, or even the way you organize your notes, how do you all incorporate that geology vibe into your routine and surroundings?

11 Comments
2024/10/14
07:44 UTC

81

Amethyst from the field

16 Comments
2024/10/14
03:46 UTC

14

Stone Snow Cone

That’s quartzite on top. Nice find in a canyon with big quartzite chunks about.

1 Comment
2024/10/14
03:19 UTC

17

A cool find in ny beach coney island

Im the type of guy to sift through the sands whenever im at a beach and found this beauty. Is it a rare find? Does it look like it has any minerals in it? My camera isnt too good but theyre is glimmer when you move the rock. What do you guys think?

9 Comments
2024/10/14
01:58 UTC

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