What are these holes???

[aliny]

 

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[broken_detector]

View attachment 1815239View attachment 1815240

Believe it was an underground ant colony.

 

[ANTIQUARIAN]

What part of the country was this feature found in?
Looks like New Mexico, Texas or California... this would help narrow it down.

Dave

 

[amypang]

It's just like a big anthill..

 

[Gambrinus]

I think it is tufa, although I have not seen it in a honeycomb shape like that. The second picture looks more like tufa.

https://www.google.com/search?q=tuf...VUIzQIHXI1AU0Q4lYoBnoECAEQHA&biw=1343&bih=632

 

[aliny]

noo, it is a Central Asia, Kazakhstan, probably it is unfamiliar to you

 

[aliny]

Thanks for reply! but it is a chalk deposit

 

[danloop]

noo, it is a Central Asia, Kazakhstan, probably it is unfamiliar to you

Sounds like you already know.

 

[bowwinkles]

I have seen this many times in Oregon.

https://www.google.com/search?q=pic...oAhXGmuAKHUTmArEQ7Al6BAgFECk&biw=1226&bih=552

 

[Plug N Play]

Pitted limestone

" Especially in dry environments, or in the sheltered areas of wetter climates, it is common to see the pitting of limestone surfaces. Examination under high magnification by scanning electron microscope often reveals that the interiors of these pits are colonised by communities of algae, fungi and bacteria. These help to dissolve the stone, and in doing so create tiny ecological niches that encourage further colonisation. "