/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

What is Fixation?

Hello everyone, I've been doing some research into fossilization and there's a particular process I just can't seem to find the definition of: fixation. I think the gist is that a "fixed" part (say an organelle for example) can't be gotten to or broken down in the same way that most organic material is; but equally, some sources seem to imply "fixed" material already has been in some way altered. I'd appreciate any help on this I can get. Thanks.

0 Comments
2024/06/11
06:47 UTC

1

Can someone eli5 what post impact uplift is and how it helped shape the Manicouagan Reservoir.

0 Comments
2024/06/11
06:33 UTC

1

Need a resource

Where can i find a detailed zoomable map of US fault lines of any size?

0 Comments
2024/06/11
01:07 UTC

41

Which States offer the most diverse landscapes?

Just thinking about which state i would like to move to and settle down in wondering if you guys have some information on states with the most diverse biomes,landscapes, everthing.

States im looking for are:

-where i can drive 2 hours one direction and im in the sands dunes (so on weekends i can ride dirtbikes,atvs or buggies.)'

-where i can drive 2 hours another direction and im in the "Rocky mountains"

-another 2 hours and im in the rainforest

-another 2 snowy areas

so on so forth ive heard these states (Alaska,california,washington,oregon) california seems the winner but would like more information on what you guys think. Sorry if grammer is all over the place using my phone.

69 Comments
2024/06/10
23:21 UTC

25

Will the tectonic plates move significantly in the future.

Not a science guy and I’m a little baked so don’t come at me. but at one point I know earths land looked a lot different, back in time were the tectonic plates moving faster? Or was it super slow, which brings the next question of will they ever speed up.

Last question if it was at a very slow rate of speed is it still happening now. Like I know we have earthquakes and stuff. But will eventually another continent smack another continent after a few million years. Thanks in advance 🙏

27 Comments
2024/06/10
21:31 UTC

79

"Vintage" granite 😅

As a geologist, this is hilarious!

17 Comments
2024/06/10
21:21 UTC

16

Beach rocks… calcite?

These were found on the beach in Oceanside Oregon. My thought is it’s mostly green jasper, it doesn’t look like agate to me. Also, I think there are calcite but someone said they could be sea glass. Any thoughts?

7 Comments
2024/06/10
20:29 UTC

2

Triaxial Testing Equipment

Hey guys, this is gonna be a weird one, but Reddit is full of surprises! I am looking for a complete Triaxial testing equipment for a company I work with. All the suppliers contacted so far have crazy long delays and we need it ASAP. Anyone in the geotechnical testing field that could help me? Cheers

2 Comments
2024/06/10
18:25 UTC

0

Can someone link me to some detailed articles about the geological history of the US Piedmont?

I live in Georgia, and am highly curious about the complex geological history I see evidenced around me. I have heard that the entire Piedmont is basically a former long archipelago squashed between North America and Africa as Pangaea assembled. What can I read about that, as well as other rock types/terranes? Primary articles or very high-quality books preferred. Thank you!

2 Comments
2024/06/10
17:42 UTC

13

Basin and Range Formation

I'm not a geologist, just a scientist from another field that is interested in geology. Supposedly the B&R is formed because of extension or the stretching of that section of the western USA. I would have thought that all of the west was compressed (due to the Farrallon plate or the Hit & Run hypotheses of the Laramid Orogeny). How did this happen? Are there other parts of the Earth that are also Basin and Range in it's geology? If there are any books/articles understandable by a layman, I would be very willing to dive into that also. Thanks in advance for any pointers.

19 Comments
2024/06/10
15:56 UTC

12

Branching desert "roads"?

What are their purpose? Theyre branching so i dont think theyre meant to be driven on? Sand is NOT compacted and MUCH softer than surrounding soil One by church is a real road

6 Comments
2024/06/10
10:54 UTC

1

Crystals in beach rocks?

Title. I went to the beach yesterday and while the majority of them were just flat, gray rocks, I found some more that were colorful and shiny (like lots of tiny crystals). Could these be metamorphic or igneous?

4 Comments
2024/06/10
05:07 UTC

9

Mineral with absorption of red light and reflection of UV?

For identifying some minerals on Mars I'm searching for material which would reflect UV light but absorb red and green light. The UV reflection must be noticeably stronger than its reflectance in the blue range.

The only mineral reflecting UV I could find so far is Ilmenite, but that lacks the absorption in red as except for the reflection in UV it is flat black in the spectrum.

12 Comments
2024/06/10
04:39 UTC

0

Some crazy looking rocks in this awesome video by thePOVchannel

0 Comments
2024/06/10
00:38 UTC

4

Magma mixing?

I'm fascinated by how minerals mix in magma

What's going on here? (Shoe toe for perspective). The colors didn't come out true.... the greenish stuff is, best guess, nephrite or greenstone, both found in the area (braided river, top of South Island, New Zealand). It doesn't go all the way through to the back of the rock. The dark rock, again best guess, is a mafic of some sort.

6 Comments
2024/06/09
23:40 UTC

0

Leviathan

I've been researching the leviathan natural gas structure off the coast of Cyprus, and I want to know more about how it works and if it poses any threat of safety in the region. I don't know much about these deposits, only that they're worth a lot of money.

Under which circumstances could leviathan become dangerous?

How have they tapped into it?

If a country in the region were to seize it, on what kind of scale would they need to control the operation? Specifically, how big would the control center and distribution centers need to be?

0 Comments
2024/06/09
22:55 UTC

155

Really neat preservation of an ancient seafloor in sandstone (Dark Brown/ Orange)

Found on a hike in northern CO. Thought someone might find this interesting, definitely easier to see if you zoom in.

7 Comments
2024/06/09
19:55 UTC

7

Editor’s Choice Article

2 Comments
2024/06/09
18:53 UTC

20

Rock Cycle Chart

I am a teacher in an almost 100 year old building. I am wondering a few things: 1. Can anyone tell me the age of this? 2. I’m wondering if anyone knows the best way to clean it. I have two amazing cabinets that we call the “Tiny Smithsonian” and I’d like to put it in there but it needs some help first.

7 Comments
2024/06/09
18:40 UTC

0

Alternative Geology

does anyone know of any alternative / maverick geologists??? turcaud & his "real geology" is one but i can't find his book (if he wrote one).... suggestions welcome

5 Comments
2024/06/09
18:09 UTC

23

Can water/rocks cause hallucinations?

So to add context, years ago in the early 00’s I was watching the og Unsolved Mysteries series (to which this particular story doesn’t belong because they solved it, but I digress).

Basically the story was that a group of friends were in a cabin somewhere, and they were starting to have hallucinations of the place being haunted, (hearing voices, hearing loud crashing noises, feeling random bouts of pain sporadically, etc).

The conclusion, if I remember correctly, was that there was subsurface water flow that was coming into contact with some type of rock/mineral that was messing with brain waves.

I’m wondering if this has a basis in reality or if it was a bunch of nonsense on TV.

17 Comments
2024/06/09
16:09 UTC

3

Geology + Computer Science/programming?

Approximately two years ago I finished my geology degree, I have worked on a research ship and in geotechnics in Spain. Honestly, the salary was not better, and it has not convinced me at all, I am thinking of specializing in a master's degree or some complementary course related to computer science.

My question is, do you know what I could do to specialize? There is not much information on the Internet, I like programs like QGis/ArcGis... and although I don't know much about programming, I would like to go in that direction to be able to combine it with geology.

Any advice?

Thank you very much in advance!

3 Comments
2024/06/09
13:47 UTC

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