Physical weathering, also called mechanical weathering or disaggregation, is the class of processes that … See more

Most rock forms at elevated temperature and pressure, and the minerals making up the rock are often chemically unstable in the relatively cool, wet, and oxidizing conditions typical of the Earth's surface. Chemical w… See more

Weathering of basaltic oceanic crust differs in important respects from weathering in the atmosphere. Weathering is relatively slow, with basalt becoming less dense, at a rate of about 15% per 100 million years. The basalt … See more

Buildings made of any stone, brick or concrete are susceptible to the same weathering agents as any exposed rock surface. Also statues, monuments and ornamental stonework can be badly damaged b… See more

Granitic rock, which is the most abundant crystalline rock exposed at the Earth's surface, begins weathering with destruction of hornblende. Biotite then weathers to vermiculite, and finally oligoclase and microcline are … See more

Wood can be physically and chemically weathered by hydrolysis and other processes relevant to minerals and is highly susceptible to ultraviolet radiation from sunlight. This induces photochemical reactions th… See more

• Aeolian processes – Processes due to wind activity
• Biorhexistasy – Soil formation theory
• Case hardening of rocks
• Decomposition – Process in which organic substances are broken down into simpler organic ma… See more