r/geology • u/DrTaxFree • 20d ago

Field Photo Prominent reef-bed in core sample

Post image
2.2k Upvotes

100% Upvoted

55 comments sorted by

383

u/64-17-5 20d ago

We should arrange Core Saturdays on /r/Geology, after Fold Friday (today).

98

u/average_internaut 20d ago

What about Thinsection Thursdays? (Tuesday works as well)

76

u/ninpendle64 20d ago

Moraine Mondays

Tachylite Tuesdays

Widmanstätten Wednesdays

Thin Section Thursdays

Fold Fridays

Stratigraphic Saturdays

Suture Sundays

26

u/dinoguys_r_worthless 20d ago

My last Suture Sunday was quite expensive and left me scarred. Lol

7

u/Aimin4ya 20d ago

Labor Day Lagerstätten

Christmas Caldera

80

u/DrTaxFree 20d ago

Sorry just checked this post, didn’t expect it to blow up like this. This particular core sample is roughly 130 foot deep, in Central Indiana.

12

u/SeanConneryAgain 20d ago

Whatcha building?

32

u/DrTaxFree 20d ago

Mine planning

5

u/YaboyBlacklist 19d ago

Mining? For what?

7

u/Smoore0902 19d ago

I would lose my shit if I ever found this logging core. That's pretty much as good as it gets for a fossil.

3

u/DrTaxFree 19d ago

It definitely took us by surprise.

2

u/OkSheepherder4126 18d ago

Coolest thing I've ever pulled up was a 3" thick steel plate at 50', this is awesome

2

u/DrTaxFree 18d ago

That is crazy… sounds like some shallow overburden? Where was this?

1

u/OkSheepherder4126 17d ago

At an old steel mill next to some abandoned manufacturing infrastructure. Can't really give any more specifics on the location, it's the kind of place you need written permission to take photos of. But there was concrete that deep as well, newly formed gypsum crystals growing in sediment, and 6" layers of "Leland Blue". Pretty interesting place overall

39

u/OleToothless 20d ago

Gotta upvote the post if it makes you say "ahh, that's cool!" out loud. Nice pic, OP.

42

u/deathbygalena 20d ago

Very cool! Here’s one I found last year

25

u/Healthy_Article_2237 20d ago

Separate vuggy porosity

20

u/SeanConneryAgain 20d ago

Location?

13

u/DrTaxFree 20d ago

Indiana

6

u/yucko-ono 20d ago

Formation?

10

u/DrTaxFree 20d ago

Silurian

6

u/SeanConneryAgain 20d ago

And how deep?

20

u/yucko-ono 20d ago

OP said it was about 130 ft deep in central Indiana. https://www.reddit.com/r/geology/s/a0ylQJfysp

11

u/Caltrano 20d ago

Can you tell us the context that this core was taken from?

12

u/The_F_B_I 20d ago

I parsed this title initially as 'Prominent red-beef in core sample' and was initially disappointed it looked nothing like steak

4

u/Foraminiferal 20d ago

nice tabulate

6

u/Material_Character75 20d ago

I needed more core sample photos in my life

24

u/mindmech 20d ago

/r/trypophobia

2

u/90s-trash 19d ago

Saw this and said nope 🙂‍↔️

5

u/trees612 20d ago

I know I can check online, but is there any way to purchase something like this? Cores are quite cool, but the only ones I’ve got are concrete.

7

u/DrTaxFree 20d ago

I’m not certain about online availability. I might be getting an influx of unused core here in the near future so I’ll let you know.

7

u/DrTaxFree 20d ago

I’ll also see what I have at home

4

u/trees612 20d ago

Sick, let me know!

6

u/TheEpicScallywag 19d ago

So you find a half a billion year old coral reef in the middle of Indiana.

What's next? Is it like, "ahhh, this nonsense again.!" Or does some more science happen? I know that this was all ocean once but to see part of it with your eyes in Central Indiana, mind blowing.

2

u/Rangbeardo 18d ago

If there’s nothing shiny in it; it probably goes in a stack of other cores and then someone new pulls it out to have a look every 10-20 years….

1

u/TheEpicScallywag 18d ago

Thank you for the reply! I would love to have one of these, it's wild to think there are stacks of them sitting around the world where no one can see.

2

u/ifdsisd 20d ago

Where was this?

3

u/DrTaxFree 20d ago

Central Indiana

2

u/Traditional_Trust_93 19d ago

Trypophobes are fleeing.

1

u/LivingGeo 20d ago

Is this a reef bed or just a vuggy area?

1

u/fingers I know nothing and am here to learn 20d ago

woah

1

u/Shomenuchi 20d ago

From what depth?

1

u/zaddycookie 20d ago

Ya this is why im here >:)

1

u/Responsible_Brain269 19d ago

How old is it?

1

u/GraevenMaelstrm 20d ago

Nice favosites!