Bedrock:
The solid rock that underlies all soil or other loose material; the rock material that breaks down to eventually form soil.
Bilingual:
The ability to use either one of two languages, especially when speaking.
Bedrock Geology
Elevation data for each bedrock unit were extracted from the well database, separated according to their location with respect to the Plum River Fault Zone, gridded with a grid spacing of approximately 925 ft. x 775 ft.
bedrock -- n. The general term referring to the rock underlying other unconsolidated material, i.e. soil.
bedrock Any solid rock exposed at the Earth's surface or overlain by unconsolidated material.
beheaded stream The headwaters of a stream that have been captured by another stream. compare stream piracy .
Figure 17. A bedrock elevation subtracted from surface elevation by a GIS to show the thickness of water-saturated sediment.
Figure 18. Potential sites with saturated thickness of sediments greater than 40 feet.
Pediment A gradually sloping bedrock surface located at the base of fluvial-eroded mountain range. Found in arid locations and normally covered by fluvial deposits.
[LINK] The map of surficial geology shows the earth materials that lie above bedrock.
A general term used in reference to unconsolidated rock, alluvium or soil material on top of the bedrock. Regolith may be formed in place or transported in from adjacent lands.
Regression:
A retreat of the sea from land areas.
polymorph of Fe2O3 and similar minerals [including the group of hydrated iron oxides going under the name of "limonite", if water at and beneath the surface could "weather" the hematite]); 2) the dark bluish to blackish surface, presumably bedrock ...
Sound bedrock is the most desirable location for a BM, as illustrated by Figure 3-2. It provides the most stable setting in terms of underground activity and potential disturbances. Always use bedrock when a suitable outcrop exists.
The color mask denotes the exposure of the immediate bedrock, even if obscured by soil or other cover. Each area of color denotes a geologic unit or particular rock formation (as more information is gathered new geologic units may be defined).
For example, a map of dead and dying spruce/fir parcels can be statistically compared to maps of driving variables, such as elevation, slope, aspect, soil type and depth to bedrock.
Sample: 2004 Pine County Geologic Atlas, Part B Plate 8: Hydrogeology of the Unconsolidated and Bedrock Aquifers (Minnesota DNR - Source: Avenza Systems Inc) ...
Physical characteristics of a control point may vary from a metal stake in the ground to a marker set in concrete or bedrock to a brass plate embedded in a pillar.
They suggested that waters previously acidified by acid deposition or other sources were not neutralized by contact with subsurface soils and bedrock, as is normally the case.
 See also: Surface, Area, Feature, Region, Map
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