In the first half of the 19th century. in the United States there was a massive settlement of the western territories of the continent. Mastering the Wild West. Immigrants arriving on the east coast of North America moved west on what is now the Oregon Trail.
The settlers did not move one by one, but in such carts. In 1869, the Pacific Railway was built and the horse-drawn route came to naught. But according to the assurances of historians, many thousands of carts left with their wheels such ruts in the rocks:
Allegedly, sandstone and more durable rocks were erased by the wheels and left marks. It looks at least unusual. It resembles the ruts in the stone rocks of Malta, Crimea, Turkey, Spain.
Historians have no other explanation than the process of grinding the rock with wheels. Because in their luggage of knowledge there is no information that sandstone itself or calcareous mineral tuff could only recently be plastic like clay. And in these masses left a trace from the wheels. From the hooves of horses and bulls, pulling carts - there are also traces. I suggest looking at these examples.
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Now previously plastic or even liquid rock is a solid stone. The plastic rock probably petrified very quickly. This is another example of geo-concrete. It was such masses that the Indians of South America could use for their buildings. Nobody carved anything in the quarries. Everything lay under their feet and the ancients could see that the breed tends to turn to stone rather quickly.
Section of the Chisholmsky Trakt. This section lay in the river floodplain. Probably, river silt plays a role in the formation of such stone masses.
There are sections with stone ruts in the desert regions of the continent. Here is far from the floodplain of the river, not a swampy area, which would suggest that the carts passed in clay and it miraculously turned to stone. Here for historians there is only one explanation - erased by wheels. And geologists themselves are not familiar with alternative hypotheses.
It can be assumed that the folding itself here is the result of geological processes of heaving of layers of the earth with cold fluidolites from the depths. Somewhere the “shell” was broken and mud and water streams came out of it. The entire landscape of the central regions of North America speaks of global water erosion. Specifically: mesas, deserts (sand), Grand Canyon, etc.
This photo is very revealing: the Stockton Hills ore road. In addition to the ruts in the stone, traces left by animals pulling carts are visible. Both left and center. Apparently, there were carts drawn by a pair or even four. And also on a single traction. Although historians claim that the grooves were specially made and used for braking the carts with poles that rested against the stone base.
The trail next to the Penitent canyon. Rut in harder rock. The layering of the stone is visible on its surface. It is possible that it was also formed by masses flowing onto the surface.
After such examples, a thought arose that answered the question: why did stone construction stop all over the world and in most cases switched to brick construction. Plastic stone masses are petrified. It became impossible to saw and process them in a handicraft way. I had to introduce brick firing wherever possible.