What Causes Weathers Marble And Limestone

Limestone is soluble in acidic water.

What causes weathers marble and limestone.

Even natural rainwater is usually slightly acidic but many parts of the world especially urban and industrial areas have significant amount of nitrogen oxides and sulphur oxides as gases mostly from man ma. Chemical weathering produce weak acid that weathers rock. In simple terms acid rain is a weak sulphuric acid and this is a significant cause of chemical weathering. What causes weathers marble and limestone.

This makes weak sulphuric acid h 2 so 4. Chemical weathering weathers marble and limestone. Weathering is the breakdown of rock by physical chemical or biological processes. Release of pressure exfoliation.

Chemical weathering causes rust on some rock. When sulfurous sulfuric and nitric acids in polluted air and rain react with the calcite in marble and limestone the calcite dissolves. This causes the limestone to dissolve. The video in figure 2 shows how acid rain weathers limestone.

Limestone areas are predominantly affected by chemical weathering when rainwater which contains a weak carbonic acid reacts with limestone. Stone surface material may be lost all over or only in spots that are more reactive. Rain water h 2 o in the clouds dissolves some of the so 2 a pollutant from industrial manufacturing. Carbon dioxide from the respiration of animals and ourselves is one cause of increased carbon dioxide in the atmosphere.

Mechanical weathering roots pry apart and cracks in rocks. Water is the primary cause for the weathering of marble and limestone. Mechanical weathering causes rock to flake off.