Weathering and soil Earth’s external processes - weathering Mechanical frost wedging unloading thermal expansion Chemical dissolution oxidation hydrolysis Biological Weathering and soil

Mechanical weathering – frost wedging Weathering and soil

Mechanical weathering – frost wedging Weathering and soil

Mechanical weathering – talus slopes Weathering and soil

Mechanical weathering – unloading (sheeting) Weathering and soil

Mechanical weathering – unloading (exfoliation domes) Weathering and soil

Mechanical weathering – unloading (exfoliation domes) Weathering and soil

Mechanical weathering – thermal expansion Weathering and soil

Chemical weathering – dissolution Weathering and soil

Chemical weathering – dissolution Weathering and soil

Chemical weathering – oxidation Weathering and soil

Chemical weathering – acid mine drainage Weathering and soil

Chemical weathering – spheroidal weathering Weathering and soil

Rates of weathering – differential weathering Weathering and soil

Soil - regolith Weathering and soil

Soil - humus Weathering and soil

Soil – formation and composition Weathering and soil

Soil – formation and composition Weathering and soil

Soil – parent material Weathering and soil

Soil – parent material (residual soil) Weathering and soil

Soil – soil profile

Soil – eluviation and leaching Weathering and soil

Soil – eluviation and leaching Weathering and soil

Soil – eluviation and leaching Weathering and soil

Soil – soil taxonomy Weathering and soil