Portheras Cove Photo

Raised Beach and head deposits

Rounded stones in eroded cliff were beach material 120000 years ago when the sea level was a bit higher due to a warmer climate. The climate then worsened as the world went into the most recent glacial period (100000 to 15000 years ago) and the area was tundra - the angular rocks above were split by ice and sea level was over 40 metres below current levels

© Hugh Venables and licensed for reuse under this Creative Commons Licence