Sag pond
From Wikipedia, the free encyclopedia
A sag pond is a body of fresh water[1] collected in the lowest parts of a depression formed between two sides of an active strike-slip, transtensional or normal fault zone.[2][3]
A sag pond is formed along a strike-slip fault, which may create a depression in the earth.[4][5] When water enters the depression from rivers, streams, rainfall or snowfall, it fills the low-lying area, and a pond is the result.[6]
Scientific significance
Sag pond formation is common in California,[7] and many of them can be found on the San Andreas Fault, which runs through the western part of the state.[8][9] Aerial photography or high-resolution topography can easily determine their locations.[10]