The UKs Evolving Physical Landscape Flashcards
Weathering
The physical, chemical or biological breakdown of solid rock by the action of weather or plants
Physical weathering examples
Freeze Thaw weathering and Onion skin
Example of biological weathering
Living things can affect a rock
Chemical Weathering
Chemicals can affect rocks
Rock fall
Fragment of rocks breaking away from the cliff face due to weathering
Landslide
Blocks of rock slide downhill
Mud slide
Saturated soil flows down a slope
Slumping
Saturated soil slumps along a curved surface
Examples of metamorphic rocks
Crystals
Ribbon like layers
Examples of igneous
Gas bubbles and glassy surface
Examples of sedimentary
Fossils and sand or particles
Anticline
A ridge or fold of rock with many layers
Escarpment
Higher areas of resistant rocks like chalk
Dip slopes
Behind the escarpment, gentle sloped follow the angle of the scarp
Vales
Softer slays form lower and flatter ground
Concordant coastline
The rock layers (strata) are parallel to the coastline
Discordant coastline
The rock layers (strata) are at a right angle to the coastline
Joints
Joints are small, usually vertical cracks found in many rocks
Faults
Faults are larger cracks caused by past tectonic movements
What sort of coastline does headland and bays form at?
Discordant
What sort of coastline does coves form at?
Concordant
Hydraulic power
The sheer power of the waves
Corrosion
The affect of rocks being flung at the cliff by powerful waves