GLOSARI GEOGRAFI

Khamis, 22 April 2010

Cerun Curam Gelinciran [fault scarp]
Pergerakan menegak batu-batan di sepanjang gelinciran menghasilkan satu cerun curam gelinciran.

Oleh kerana gelinciran mendedahkan batu-batan dengan daya tahan luluh yang berbeza-beza kepada kuasa gondolan, bentuk muka bumi gelinciran yang asal akhirnya akan dihakis dan diherotkan oleh pergerakan bumi yang lain

Illustration of four types of faults. Faults are classified according to how steeply they dip and the relative movement of the crustal blocks on either side of a fault. Normal faults, for example, occur when underground pressure causes the crust to stretch or pull apart, whereas reverse faults occur when underground pressure causes the crust to compress.

When fault planes are angled downward toward each other, a down-dropped block, called a graben, is formed. If the fault planes of the parallel faults are angled downward away from each other, a crustal block between them may be elevated. This uplifted block is called a horst.

http://www.scienceclarified.com/landforms/Faults-to-Mountains/Fault.html

GLOSARI GEOGRAFI

Khamis, 22 April 2010

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