1. Classification of running water erosion: marine erosion, river erosion, etc.

2. Classification of flowing water solution: karst upper stagnant water solution and karst phreatic water solution.

Second, the overview of the two is different:

1. Overview of running water erosion: erosion includes the movement and decomposition of rocks and minerals through water, ice, wind and gravity. Erosion can be divided into mechanical erosion and chemical erosion.

2. Overview of flowing water dissolution: The most typical landform formed under the action of dissolved water is karst landform. For example, karst caves, stone forests, stalactites, dissolved buckets and other karst landforms formed in Guilin, a famous tourist resort in China, are all over the region.

Third, the reasons for their formation are different:

1. Causes of flowing water erosion: The flowing water erosion is more powerful and common, and about 90% of the mainland area is under the control of flowing water erosion. Precipitation erodes the surface, valleys and rivers, widening the valley floor and river bed, and the slope water washes the whole slope and makes it tend to be broken.

2. Causes of running water dissolution: Using the mobile liquid-phase water-rock reaction experimental device, under different burial diagenetic temperature and pressure conditions, with dilute acetic acid as the medium, the dissolution kinetics experiments of carbonate rocks with different mineral components were carried out, which proved that the dissolution degree and dissolution rate of carbonate rocks increased with the increase of burial depth.

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