Due to the vibration and weathering of natural forces such as crustal movement, after the impact of mountain torrents, the handling of running water and repeated rolling friction between sand and stones, lovely round muddy pebbles were finally formed.
The formation process of pebbles can be divided into two stages: the first stage is the stage of rock weathering and collapse; The second stage is the stage when rocks are carried and bypassed by rivers.
Pebbles containing pebbles are formed by the breaking of rocks. Only long-distance transportation makes the edges and corners disappear, forming round or oval pebbles (or pebbles and gravels), and then the cemented rocks are called gravels.
The formation of pebbles is a long process, that is, they can be washed by drinking water or rubbed against each other. The cobblestones in your place may be caused by floods and mudslides in history (because they are mountainous areas), but the specific reasons depend on the geological structure and geographical environment there, and you need to refer to other surrounding mountains. As for the absence of trees on the mountain, it may be caused by soil reasons or the connection between surrounding tree species and living things.
How are pebbles formed? About 1 100 million years ago, in the Mesozoic era, under the action of crustal movement, magma gushed out from the surface, and the rapidly cooled magma formed granite. Thousands of years later, due to the dislocation and extrusion of granite caused by magma intrusion, a large number of small stones were produced. Those stones near the water, after a long period of slow water erosion and mutual rolling, finally formed today's pebbles.
Pebbles took a long time to form.
Due to the vibration and weathering of natural forces such as crustal movement, after the impact of mountain torrents, the handling of running water and repeated rolling friction between sand and stones, lovely round muddy pebbles were finally formed. Rivers flow through different geological structures, and mountains have different rocks. After scouring, pebbles with different compositions will be formed. The rocks on the mountain collapsed due to weathering, and were taken away by the current in the process of river scouring, trying to round each other and form pebbles.
No matter how hard the stone is, it gradually becomes smooth under the scouring of the river until it is as smooth as an egg.
The formation process of pebbles can be divided into two stages: the first stage is the stage of rock weathering and collapse; The second stage is the stage when rocks are carried and bypassed by rivers.
Pebbles containing pebbles are formed by the breaking of rocks. Only long-distance transportation makes the edges and corners disappear, forming round or oval pebbles (or pebbles and gravels), and then the cemented rocks are called gravels.
Colored sand pebbles, Taihu pebbles, Melaleuca pebbles and other colors: red paste, green paste, wide red, coffee, China coffee net, black background and white background, thread paste, Hangzhou ash, yellow cave stone, beige cave stone, emerald, Dandong green, big flower green, beige jade, topaz, Yushan red, white marble, jet, Jin Xiangyu and so on.
Originally, it was a thick and big rock, but after millions of years of rain erosion and collision, it became transparent and beautiful pebbles.