Limestone Granite Weathering

Granite vs limestone characteristics assist us to distinguish and recognize rocks.

Limestone granite weathering.

Why does weathering of granite bedrock produce rounded shapes. Rainwater can get acidic because of the carbonic acid that it contains. This is because calcium carbonate which is one of the minerals found in limestone readily reacts with rainwater. Limestone gets pitted and porous due to chemical weathering.

Limestone being sedementary is sheety and softer than granite which is igneous and harder having less cracks so it weathers more slowly. Thus limestone is not easily soluble in pure water but carbonated water dissolves the rock effectively. It begins when a crack made larger by freeze thaw and tree roots growing larger until the rock splits. Karst is landscape formed from the weathering of limestone.

B hydration and hydrolysis. Mechanical weathering is weathering done by trees ice etc. Although the granite is now starting to show some signs of decay it took over a hundred years and exposure to aggressive water to do so. Hard rocks such as granite weather more slowly than softer rocks such as limestone.

This causes the limestone to dissolve. Differential weathering happens when softer rocks weathers away and leaves harder more resistant rock behind. Granite is extremely hard and less affected by the freeze thaw cycle the forces of abrasion and the surface exfoliation processes that are all a part of physical weathering. Many horizontal and vertical cracks run through limestone.

Limestone is a rock which is more prone to especially chemical weathering than other types of rocks such as granite. Characteristics of rocks include texture appearance color fracture streak hardness etc. This greatly shows that out of the three rock samples being tested against limestone that granite will most likely show less weathering through the duration of the experiment. Carbon dioxide from the respiration of animals and ourselves is one cause of increased carbon dioxide in the atmosphere.

These two processes indicate the direct attack of atmospheric moisture on the individual minerals of a rock that ultimately affect its structural make up. Granite vs limestone characteristics. The rounded shapes are pillows formed at depth in the granitic magma roots rub against the edges of the granite burrowing animals eat away parts of the granite weathering removes corners and edges as in spheroidal weathering. Though some rocks look identical they have certain characteristics which distinguish them from others.

These cracks allow water to pass easily through the rock. Limestone is a sedimentary rock created from the remains of dead sea creatures and is predominately made up of calcium carbonate.