Chemical Weathering Processes Unlike mechanical weathering, chemical weathering alters the molecular structure of the rock, transforming it into new minerals or soluble substances. Hydrolysis and Carbonation Water is a universal solvent, but its power is amplified when it reacts with minerals.
Temperature Changes Break Rocks Slowly
Carbonation happens when carbon dioxide in the air or soil dissolves in rainwater, forming a weak carbonic acid that dissolves calcium carbonate found in limestone and marble, leading to the formation of caves and karst landscapes. Agents such as water, wind, ice, and gravity transport the sediment downstream, over dunes, or along geological faults.
The process that alters their structure, whether through cracking, flaking, or complete disintegration, is known as weathering. Plant roots are powerful natural wedges; as a seed germinates in a rock crevice, the growing root exerts tremendous pressure, prying the rock apart.
How Temperature Changes Cause Mechanical Weathering of Rocks
Biological Activity Living organisms are significant agents of mechanical breakdown. This action is particularly effective in mountainous regions and climates with seasonal temperature fluctuations.
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