Geologists can't be sure what caused all this unless there is a new discovery I don't know. The best guess is the dome formed by igneous rock intrusion.

This is what I saw up close:

The pink in the middle is the natural color of the rock. All the gray areas are so-called "desert varnish", which is a metal-rich coating that forms on the rock surface at a speed of about the thickness of human hair every thousand years. There are various speculations about its function, but there is no conclusion.

One of my favorite phenomena is the "hot spot", which will give us something like this:

At the top is the Yellowstone crater, which is the remains of a super volcano that erupted hundreds of thousands of years ago. Below is the Hawaiian Islands. It is said that they are all the result of mantle plume. One in Yellowstone National Park is obviously opposite to the North American plate, and the other in Hawaii is opposite to the earth axis and rotates over the Pacific plate, so its eruption forms an island chain.

This is the one I visited:

The Grand Canyon is the most studied erosion landform on the earth. Geologists have tried to determine its age, but it is said to be between 6.5438+million years and 60 million years. Part of the problem is the disagreement about how it came into being: the popular view is that the Colorado River flows through this area, and as the land rises, the rivers decrease; Another way of saying it is that an ancient river did most of its work before it dried up. When the Colorado River formed, it entered the canyon and occupied it.

On a smaller scale, a promontory on the Oregon coast has been the subject of several master's theses, and its geology has puzzled the whole geological college. A friend wrote a master's thesis in this field. At the end of his oral presentation, a professor present asked him to go back to a certain point and repeat his explanation of a certain configuration. After repeating it, the professor asked, "Do you really think we will believe it?" My friend said, "No, no, but can anyone here think of a more credible alternative?" No one can do it, even if there are six doctoral professors in geology and more than 20 graduate students in geology.