Rejuvenation

Rejuvenation

1. "Rejuvenation is an increase in the energy of a river caused by the fall or rise in the base level of the river"

2. This is caused by one of two types of sea level change

   • Eustatic
     • Changes in sea level induced by variations in the amount of water in the oceans
     • Occurs on a global scale
     • Decrease in global temperatures means the hydrological cycle is interrupted as water freezes as ice on land and is therefore not returned to the oceans = decrease in sea level
   • Isostatic
     • Changes in sea level resulting from the rise and fall of land masses
     • Occurs on a local scale
     • When ice sheets are on land masses, the weight causes the land mass to sink slightly = increase in sea level
     • When ice sheets melt, they slowly over thousands of years, move back to their original position = decrease in sea levels
     • Tectonic movement