downthrow


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downthrow

[′dau̇n‚thrō]
(geology)
The side of a fault whose relative movement appears to have been downward.
References in periodicals archive ?
Normal faults serve to downthrow the section progressively to the south where a more complete stratigraphy is displayed.
They occur at the base of the Waulsortian Limestone Formation, in the middle of a sub-outcropping dolomitised belt, and north of a major southwest-northeast trending normal fault system with downthrow to the north in excess of 200 m.
In the phase of postorogeny extension, the ductile and later fragile zones expanded; in essence, these zones were the downthrow faults combined with horizontal dislocations.