geography - coastal stability

• Isostatic change is the local rise and fall of land levels as a result of loss of ice or tectonic activity.
• Eustatic change is the rise and fall of water levels caused by a difference in the volume of water, affecting all the world's seas and oceans.
• Isostatic uplift / rebound / recovery is the rise of land masses after the removal of the huge weight of ice sheets, causing local sea levels to fall relative to the land.
• Isostatic subsidence is the sinking of land when mass is added to the crust causing local sea levels to rise relative to the land.
• Isostatic downwarping is where isostatic uplift happens in one area tilting the land downwards in another area.
• Crustal sag is when the Earth's crust sinks into the mantle due to increased weight of ice or deposition of materials.
• Regression is where the former sea bed is exposed due to fall in sea levels.
• Transgression is when the coastline is drowned by rising sea levels.
• Orogenic uplift is when the tectonic plates converge and push upwards to form mountains.
• Interglacial is a period of warmer global average temperature lasing thousands of years that separates two glacial periods.
• Glacial is a period of time that is marked by colder average temperatures when glaciers extend over the land.
• Holocene is the name given to the last 11,700 years, then time since the last major glacial period.
• Denudation is the wearing away of the Earth's surface by processes such as weathering, mass wasting and erosion, reducing the elevation of an area.