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19 Cards in this Set
- Front
- Back
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What is the littoral zone |
Area of rapid change due to coastal techniques such as erosion |
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What is strata |
Layers of rock |
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What are bedding planes |
Horizontal cracks in the strata |
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What are joints |
Vertical cracks caused by contraction as sediments dry out or earth movements during uplift |
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What causes folds |
Pressure during tectonic activity, makes ricks buckle and crumble |
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What causes faults |
Stress or pressure exceeds its internal strength causing it to fracture |
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What is porosity |
Amount of space in a rock |
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What is lithology |
Study of physical characteristics of rocks |
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What is morphology |
Study of geological structure, shape or form of a feature |
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What is a fetch |
Maximum distance of sea that the wind has blown over |
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What is a berm |
Where the high tide gets up to |
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What does inter-glacial mean |
Time between ice ages |
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What is eustatic change |
A global change in the ocean for example sea temperatures |
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What is isostatic change |
A local change in the sea |
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What is isostatic subsidence |
When weight of an ice sheet in land causes it to sink |
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What is isostatic recovery |
When ice melts, the reduced weight causes land to readjust and rise |
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What are raised beaches |
Emergent feature. Areas of wave cut platform higher that the current sea level. Example- Kings Cave in Scotland |
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What are fjords |
Submerged feature. Glacial valleys which have been drowned- make a U shape. Underdeveloped rias |
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What are rias |
Submerged feature. Drowned river valley. The hills in upper+ middle course remain. Example- Milford Haven, South Wales |
