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 ?
The Ziarat Pir Fault is steeply west dipping along which the eastern flank of the Ziarat Pir Syncline is downthrown to the west.
7, SW wall), giving a left-lateral displacement with the downthrown block to the northeast, consistent with the original topography of the area previous to the extraction of aggregates.
Bulk mining first will remove the Enrichment Blanket, and then as operations progress downward, the Berkeley gross pit resource, the Intermediate-depth "Kelley Blocks" resource, the Intermediate-depth zinc-copper resource, and eventually the Anaconda and Pittsmont downthrown block domes.
Taking into account the offset of the Carboniferous and the Cretaceous outcrops along this fault, this is a normal fault with the north-west limb downthrown.
Oil and gas are found on the upthrown side of the main fault and in the anticlinal structure on the downthrown side of the fault.
Points 602 and SZYM, located on the fault's downthrown wing, show significant displacements similar in direction.
Where movement on a fault is small then mineralization normally cross-cuts the structure, however the thicker and higher grade intersections are interpreted to occur on the downthrown side.
Plans are being finalized to drill the next well (ZJS-03) late in the first quarter of 2011 on the upthrown block, which is larger than the downthrown block drilled in by ZJS-02.
With a downthrown of the western block it also affects the Choiyoi Group and Las Lagunitas Formation (Figs.
7-8; Qureshi et al, GSP map, 2001) would be on the downthrown side of this fault that probably created the accommodation space for deposition of these coarse clastics.
The importance of the South East Remora-1 discovery is that it has been made on the downthrown side of the Rosedale Fault - due West to but on a similar geological setting to the Vic/P41 Kipling/Benchley Prospects and the nearby Kipper Gasfield.
In this area the metamorphic foundation of the Fore-Sudetic Block has been downthrown approx.