Please enable JavaScript.

Coggle requires JavaScript to display documents.

geo - revision - paper 1 - Coggle Diagram

- - - - Long term sea level changes can be either eustatic or isostatic.
      - Eustatic sea change occurs when ice on land melts and returns to the ocean, increasing the volume of water present in the sea.
      - Isostatic sea change occurs from the downward movement of land, causing localised sea level rise. Land can be stressed downward from post-glacial adjustments, subsidence (sinking of
        land) and accretion (accumulation of layers pushing down on the earth).
      - Sea level change has produced emergent coastlines (raised beaches with fossil cliffs) and submergent coastlines (rias, fjords and Dalmatian).
      - Global warming is causing eustatic sea level change as ocean temperatures become warmer and particles expand, taking up more space in the ocean basin. This causes sea levels to rise. Additionally, a warmer climate causes the melting of ice on land which adds water to the ocean.
      - Tectonic activity also contributes to the shape of ocean basins. If the ocean basins get smaller, the volume of the oceans decrease and sea level consequently rises.