valley fill

valley fill

[′val·ē ‚fil]
(geology)
Unconsolidated sedimentary deposit which fills or partly fills a valley.
References in classic literature ?
4000 feet in height, in the latitude of Cumberland, with every valley filled with streams of ice descending to the sea-coast.
And it was not long before the Sea Valley filled up, and in it were countless families.
It appears to be open to the south and west but is covered by valley fill and vegetation.
The proposed permit went through several major changes before final approval in 2014, including removal of a proposed valley fill and the creation of buffer zones around streams to avoid the need for a federal "dredge and fill" permit under the Clean Water Act.
Winning for valley fill construction in the southern region were Catenary Coal's Samples surface mine and Alpha Natural Resources' Republic Energy Empire surface operation, and earning honors in water treatment was Alpha Natural Resources' Road Fork Development Turkey Creek refuse area.
The study incorporates a three-stage crushing circuit and a valley fill heap leach facility designed by Knight Piesold, along with a standard carbon-adsorption gold recovery plant to produce a total of 1.86 million oz of gold dore over the life of mine.
previous proposed facility and seven kilometers from the pits and is a potentially good valley fill."
Several of these valleys such as that of the lower Cuyahoga River in northern Ohio are being exhumed by modern rivers; tributaries of these rivers dissect the valley fill exposing sediments that represent processes associated with glaciation (Szabo 1987, 2006a).
No longer do creeks in the Willamette Valley fill with salmon, but Oregonians still celebrate their return.
Pond, an environmental biologist with EPA Region 3 in Wheeling, showed that more than 90% of 27 Appalachian streams below valley fill sites were impaired as per Clean Water Act standards, while none of 10 streams sampled in nonmined valleys were impaired.
For instance West Virginia resident Maria Gunnoe's home sits directly below a 10-story valley fill that contains two toxic ponds of coal mine waste.
Last week, the agency recommended that none of the 79 valley fill permit applications associated with mountaintop removal mining be streamlined for approval.

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