Mechanical Weathering and fracture-controlled erosion

 

These images don't link to other pages, but they are at sufficiently high resolutions for power point.

photo of grus
Successive stages of grus formation from granitic rock. Grus forms by a combination of mechanical and chemical weathering processes.

 

photo of weathering and erosion along joints
Effects of weathering and erosion along joint
surfaces, SE Utah.

photo of arch developed along joint surface
Development of arch along joint surface,
Arches NP, Utah. Note fins in background.

photo of talus
Talus produced by frost-wedging, Montana. 		photo of tree exploiting crack in tree
Tree exploiting crack in rock, SE Utah.

 

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