Introduction to landslide breccia: Tens of thousands of years ago, due to landslides, the stones on the top of the canyon cliff rolled down and pushed together. Because the landslide occurred more than once, the stones rolled down more than once, and the time was longer. If the time is short, the crowding will be tighter, and if the time is short, the crowding will be looser, forming a dense and dense geological landscape.
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