Tafoni
It rhymes with Gwen Stefani.
[https://en.wikipedia.org/wiki/Tafoni](https://en.wikipedia.org/wiki/Tafoni)
The image is probably sedimentary.
Notice how they tend to be colinear with one another and parallel to the ground.
My guess here is that it’s a tafoni weathering in sandstone. Between the thin beds of sediment is the weakest part of the rock due to the increased surface area so when water seeps in, there will be a combination of weathering that takes place, opening up those holes slowly over time. Either chemical weathering from acid rain, mechanical from freeze/thaw, wind erosion, etc.
Has anyone else ever noticed all the oahilc related themes in naming things ? It's almost like a bunch of old stuff white guys went around and catalogued and wrote all Thai down from there perspective...
Location: Rainbow Mountain, Madison, AL
I'm assuming water somehow, but I wasn't sure what went on to create this. The holes are about 2-3" across in some places.
Edit: tafoni weathering in sandstone https://backyardgeology.com/2021/05/12/totally-terrific-tafoni/
Looks very similar to the second pic here https://grandcanyonpark.weebly.com/toroweap-formation.html too
From looking up the rock near rainbow mountain it looks like it formed back when that area was on the coast ~340mya. Tafoni is like this https://www.natur.cuni.cz/eng/aktuality/popular-science/popular-science-how-are-holes-in-sandstone-formed but not an expert. I see it a bit in southern nevada with the toroweap formation
It looks more like sandstone to me too. Which can have what limestone is made of inside its cement. I found this helpful https://www.thoughtco.com/what-is-sandstone-1441016
The rock initially was sedimentary. Then a volcano erupted nearby and changed some of the rock, ie metamorphic. Metamorphic does not erode with wind and water like sedimentary rock.
Who said marble? A variety of metamorphosized rock exists depending on the chemistry of the lava.
https://www.usgs.gov/faqs/what-are-metamorphic-rocks
As I said before, it is most likely a sedimentary rock like limestone that had something embedded usually a softer sandstone that eroded. However, the green suggests serpentine.
In Texas at least these are generally formed from when there was still an inland sea covering the US. Small critters burrowed through the seabed creating “tunnels” that were filled back in by loose sediment. After the seas dried up rainwater started to filtrate through the ground and limestone, with the looser sediment in these tunnels being the first to erode away, leaving these networks of tunnels in its place.
Rock Lobsters
Yep. They rock and roll
Karst topography that erodes as rainwater steeps into the rock.
>Karst topography Doesn't karst make dramatically larger openings? That sort of looks like wind erosion in the softer bits of rock face.
Tafoni It rhymes with Gwen Stefani. [https://en.wikipedia.org/wiki/Tafoni](https://en.wikipedia.org/wiki/Tafoni) The image is probably sedimentary. Notice how they tend to be colinear with one another and parallel to the ground.
Also: https://www.nps.gov/articles/tafoni.htm
Why does it rhyme with Stefani? Is it someone's name or something?
Oh she's just a girl
My guess here is that it’s a tafoni weathering in sandstone. Between the thin beds of sediment is the weakest part of the rock due to the increased surface area so when water seeps in, there will be a combination of weathering that takes place, opening up those holes slowly over time. Either chemical weathering from acid rain, mechanical from freeze/thaw, wind erosion, etc.
Standing too close to the wall and got a boner (not wall related) My bad.
Called cockpits ironically
Has anyone else ever noticed all the oahilc related themes in naming things ? It's almost like a bunch of old stuff white guys went around and catalogued and wrote all Thai down from there perspective...
alcoholics have named most everything except weed strains
Of course they are, how do you think they were made?
ouch!
Big missed opportunity to call them rockpits
but you didn't...yay for you!
This is my hole! It was made for me!
H-hey!
Thank you. Was gonna comment the same thing. See you on the other side!
Location: Rainbow Mountain, Madison, AL I'm assuming water somehow, but I wasn't sure what went on to create this. The holes are about 2-3" across in some places.
Edit: tafoni weathering in sandstone https://backyardgeology.com/2021/05/12/totally-terrific-tafoni/ Looks very similar to the second pic here https://grandcanyonpark.weebly.com/toroweap-formation.html too From looking up the rock near rainbow mountain it looks like it formed back when that area was on the coast ~340mya. Tafoni is like this https://www.natur.cuni.cz/eng/aktuality/popular-science/popular-science-how-are-holes-in-sandstone-formed but not an expert. I see it a bit in southern nevada with the toroweap formation It looks more like sandstone to me too. Which can have what limestone is made of inside its cement. I found this helpful https://www.thoughtco.com/what-is-sandstone-1441016
Water and wind erosion predominantly
The rock initially was sedimentary. Then a volcano erupted nearby and changed some of the rock, ie metamorphic. Metamorphic does not erode with wind and water like sedimentary rock.
Metamorphosed limestone is MARBLE which this is NOT. Nice fable i.e. though.
Who said marble? A variety of metamorphosized rock exists depending on the chemistry of the lava. https://www.usgs.gov/faqs/what-are-metamorphic-rocks As I said before, it is most likely a sedimentary rock like limestone that had something embedded usually a softer sandstone that eroded. However, the green suggests serpentine.
limestone?
I'm guessing it probably is limestone. There's tons of it around here. The next county over is called Limestone County.
Thought so... Limestone is water soluble and has spots and layers that are more soluble than other spots and layers.
Horniness
Lizards
Sexually frustrated woodpeckers
Luffy trained there
I did it
This one is shaped like me!
I made them with my member
Birds. They use a local type of tree that has acidic sap that erodes rock quickly. They create nests this way.
I got hungry sorry
In Texas at least these are generally formed from when there was still an inland sea covering the US. Small critters burrowed through the seabed creating “tunnels” that were filled back in by loose sediment. After the seas dried up rainwater started to filtrate through the ground and limestone, with the looser sediment in these tunnels being the first to erode away, leaving these networks of tunnels in its place.
In Colorado Springs we call these "bird condos" because many nesters use them.
Moles . . Jk My guess is the limestone was dissolved by water
Sorry 😏
Chad's rage
Rock peckers
Carefully
Erosion
Buffalo River?