2256021
Description
Flashcards by arshadhuss, updated more than 1 year ago
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Created by arshadhuss
about 9 years ago
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| Question | Answer |
| Define Earthquake? | A sudden release of energy in the crust. Caused by the tectonic movement. |
| How old is the continental crust? | 1500 million years ago |
| What is the bend in river called ? | A meander |
| Name key features of a Meander ? | High velocity in the outer region. Low velocity inner region. Outside erosion. Inside Deposition. |
| Hjulstrom Curve. What is it? | To determine whether a river will erode, transport, or deposit sediment. |
| Case Study. Black-water Estuary | Problems. Sea level rise. 30cm In the south east due to Isotactic Re- adjustment. 60% salt march lost in 25yr. |
| Case study Black water estuary | Sustainability. 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. |
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