bench gravel

bench gravel

[′bench ‚grav·əl]
(geology)
Gravel beds found on the sides of valleys above the present stream bottoms, representing parts of the bed of the stream when it was at a higher level.
References in periodicals archive ?
Fi and 50cm total length of 12m plastic SN 8 on the bench gravel + front walls prefabricated - 4 pcs.
This drilling identified an extensive bench gravel deposit along the Indian River, with consistent gold values across its entire width, and gold returned from every hole.
Initial drill testing in 2005 at the project identified an extensive bench gravel deposit along the Indian River, with consistent gold values across its entire width.
Similar bench gravels downstream are the subject of current exploration by Boulder Mining Corp.
Our technical staff have spent the summer implementing a multi-phase exploration program consisting of refraction seismic surveys, reverse circulation drilling and bulk testing, which have been successful in the preliminary identification of large volumes of deeply buried, potentially- rich tertiary gold-bearing gravels, and large volumes of lower grade, glacial bench gravels.