What are the effects of chemical weathering on metamorphic rocks?
Whаt аrе thе effects οf chemical weathering οn metamorphic rocks
Thеѕе аrе rocks lіkе marble.
What are the effects of chemical weathering on metamorphic rocks?
Whаt аrе thе effects οf chemical weathering οn metamorphic rocks
Thеѕе аrе rocks lіkе marble.
Metamorphic rocks take in a wide spectrum of equipment with differing resistance to chemical weathering. Marble, like any other carbonate is susceptible to attack by weak acid such as carbonic acid in soil, and to a lesser extent in rainwater. Having looked at marble grave monuments I can say surface degradation can be several millimeters per hundred years in the contemporary atmosphere (acidic pollution is a major factor)
Slate is very chemically resistant, but vunerable to physical weathering.
Quartzite is *very* resistant to both physical and chemical weathering
Here is a list of some minerals in order of increacing resistance to chemical weathering:
Carbonates
Olivine — CA++ Plagioclase
Augite
Horneblende
Biotite —– Na+ Plagioclase
K+ Feldspar
Musovite
Quartz
(from A J Gerrard “Rocks and landforms” London 1988 P 115)