sag pond


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sag pond

[′sag ‚pänd]
(geology)
A small body of water occupying an enclosed depression or sag formed where active or recent fault movement has impounded drainage. Also known as fault-trough lake; rift lake; rift-valley lake.
References in periodicals archive ?
Oriented photographs were taken from curved tree trunks tilted electric poles transverse cracks main and minor scarps crown tension cracks backward rotated trees and sag ponds. Both younger and older trees in the crown part of the slump have pronounced downslope effects.
Sag ponds which are developed from the northward rotation of the leading edges of the slump materials within the main slump block are filled with water from seepages and heavy rainfalls (Fig.10).