Chemical Weathering Of Granite

The reaction of feldspar minerals in granite with rainwater produces kaolinite white clay known as china clay used in the production of porcelain paper and glass.

Chemical weathering of granite.

Chemical weathering of rocks is a spontaneous i e irreversible thermodynamic process leading to a more stable state for natural materials under a given set of conditions e g temperature and pressure. The kinds of changes that take place are highly specific to the mineral and the environmental conditions. Chemical weathering occurs when water dissolves minerals in a rock producing new compounds. Some minerals like quartz are virtually unaffected by chemical weathering while.

5 2 chemical weathering chemical weathering results from chemical changes to minerals that become unstable when they are exposed to surface conditions. Chemical weathering is the breakdown of rock induced by reactions between rock minerals and groundwater. This reaction is called hydrolysis. The deep red color of solis found in georgia and other warm humid regions in caused by.

Breakdown of rock to depths of many metres induced by the chemical alteration of rock minerals by groundwater. The physical and chemical weathering of a granite will produce. The remainder is 15 aluminum oxide and 10 various othe. Hydrolysis is the chemical weathering of minerals by a mildly acidic water that forms when rains dissolves trace gases in the atmosphere.

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. Granite contains on average 75 of silicon dioxide quartz and feldspar various metal aluminosilicates. Chemical weathering studies are of fundamental importance for several reasons. What are the products of physical and chemical weathering of granite.

It results from the reaction of aqueous acidic and oxidizing solutions with the minerals in rocks and soils. Ions dissolved in rainwater and soil water mineral fragments and granite fragments clays and iron oxides all of these. Chemical weathering can produce caves made of limestone some types of rock are not easily weathered by chemicals. Chemical weathering of granite occurs when dilute carbonic acid and other acids present in rain and soil waters alter feldspar in a process called hydrolysis.

For example granite and gabbro are hard rocks that are weathered only slowly.