Montana sage wall

Davey Crockett

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Interesting story how this was recently found in Montana and the different opinions if it's natural or man made .



 


Allen

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That dude is definitely not a geologist. I hated mineralogy, but that looks like a basaltic intrusion in a much larger granitic/diorite(?) formation. Lots of lichens and other coverings on the rocks. He could use a rock hammer!

Those gouges in the rock he thinks is a kitchen are often formed by a rock rolling around in an eddy on a river. Yeah, he seems to like making shit up, so I am guessing he's an archeologist. At least, he is at heart.
 

Davey Crockett

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The "nubs" and indents seem natural to me but I watched another vid from a geologist who claims granite naturally cracks in one direction and that the rocks had been rotated and placed.
 


Tinesdown

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Yeah didnt watch the video but people have been living here for thousands of years atleast along the missouri river drainage (mountrail county) mckenzie county) water sources where key to paleo Indians.
 

SerchforPerch

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Appears to be a columnar basalt formation. The "food grinding" impressions, are likely calcite vesicles that eroded away over the years.
 


guywhofishes

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1721907049964.png

4:20 much?
 

Allen

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There are plenty of examples of straight lines in the world of geology:
1721923730221.png




And while that's on a pretty large scale, right down to the molecular level, a fair number of minerals have a cubic crystal lattice:
1721923926115.png

1721923966840.png

The first image is Devil's Tower and shows the natural tendency for basalt to fracture along lengthy straight lines in its cooling process. The second two images are your ordinary table salt (NaCl) and Pyrite (FeS2) and show how clean those lines can be when there are not many impurities. Of course, impurities along with weathering can muck up the natural crystal lattice, but they are there.

Cubic is just one of several crystal lattices that have straight lines:
https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Inorganic_Chemistry_(LibreTexts)/07:_The_Crystalline_Solid_State/7.02:_Formulas_and_Structures_of_Solids/7.2.02:_Lattice_Structures_in_Crystalline_Solids
 


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