Flashcards
Plate tectonics Keywords
Flashcards do conjunto (7)
- 1Define Earthquake?A sudden release of energy in the crust. Caused by the tectonic movement.
- 2How old is the continental crust?1500 million years ago
- 3What is the bend in river called ?A meander
- 4Name key features of a Meander ?High velocity in the outer region.
Low velocity inner region.
Outside erosion.
Inside Deposition. - 5Hjulstrom Curve. What is it?To determine whether a river will erode, transport, or deposit sediment.
- 6Case Study. Black-water EstuaryProblems.
Sea level rise. 30cm
In the south east due to Isotactic Re- adjustment.
60% salt march lost in 25yr. - 7Case study Black water estuarySustainability.
Salt marsh vegetation is trapping sediment.
feeding and breeding grounds for important species of birds.
manage realignment.
81 ha of mudflat, pioneer salt marsh and coastal grassland.