What Are Five Examples Of Chemical Weathering

Over time, chemical weathering can dramatically change the Earth’s landscape. It transforms rock chemically by changing its mineral makeup. The results can be visually stunning and sometimes lead to dangerous conditions. Here are five examples of chemical weathering.

Caves

Cave formed by weathering

Most caves are formed through chemical weathering. When minerals are dissolved and washed away, cracks are left behind, and, over extended periods of time, the cracks can expand to form caves and cave systems.

Stalactites

Stalactites meet stalagmites to form columns

When mineral-rich water comes through the roof of a cave and drips, it leaves a mineral deposit behind. Over time, the deposits build up and form a narrow, hollow tube called a stalactite.

Stalagmites

Stalactites drip to form stalagmites

When mineral-rich water drips from stalactites and then falls to the cave floor, it leaves a mineral deposit. As the water continues to drip, a round or cone-shaped mineral mound will form on the floor. This mound is called a stalagmite.

Sinkholes

When underground rock decays as a result of chemical weathering, it can cause the ground to collapse, creating a sinkhole.

Rusting

Rusting metal

Oxidation is an effect of chemical weathering. When iron and other metallic elements are exposed to moisture, they oxidize, or rust.


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