weathered bedrock

The third level, weathered bedrock, is common to almost all soil types.

Other anomalous values were recorded at the weathered bedrock overburden interface.

The extra rooting volume supplied by weathered bedrock is especially important to pine relative to manzanita.

R horizons are the layers of partially weathered bedrock at the base of the soil profile.

Consequently, millions of years of erosion has established a thick cover of soil and weathered bedrock.

Most soils are composed of weathered bedrock but glacial or fluvioglacial deposition can be a problem, especially in upland areas.

As the weathered bedrock turns to soil, there is a greater elevation difference between the soil level and the hard bedrock.

Beyond the ice limit, sparse erratics and degraded meltwater channels within weathered bedrock are evidence of older, more extensive glaciation(s).

The preferential removal of weathered bedrock by erosion creates often creates bedrock blocks, which are called corestones.

Aircore drilling generally only penetrates a few metres into the top of weathered bedrock and is used as a screening tool to select targets for further investigations.

Glaciation in the area of Charlie Lake, New Brunswick, has produced a granitic till very similar in appearance to weathered bedrock.

In the north half of the site, the weathered bedrock consisted almost entirely of angular fragments of limestone within a fine, brownish-yellow gravel and sand matrix.

The 100kN Roson system is designed for seabed foundation and engineering projects that require deeper penetration or measurements through dense gravels or weathered bedrock.

Existing dug wells were deepened and new blast holes were made to take advantage of seepages from the weathered bedrock and fractures in the bedrock.

The high values are located on topographic highs, with maxima over deeply weathered bedrock occurrences, and the low values are located in glacial valleys.

It is ideal for environmental and civil engineering applications such as pollution monitoring and mapping, salinity control, depth-to-rock determination and weathered bedrock mapping.

Salinity is due to the pre-existence of salts in the soil and weathered bedrock, and salinity levels range from low (hyposaline) to high (hypersaline).

Aircore drilling at the Melrose Magnetic Anomaly which is required to penetrate up to 50m of younger, unconsolidated overburden and sample weathered bedrock has been completed.

The site consists of Aeolian sediments (sand and loess) overlying weathered bedrock of the Yukon-Tanana crystalline terrace.

Landslide in which the sliding surface is located within the soil mantle or weathered bedrock (typically to a depth from few decimetres to some metres)is called a shallow landslide.

Geochemical exploration strategies over much of the Mt Isa Block are relatively simple due to the extensive outcrop of unweathered or partially weathered bedrock and skeletal soils.

At a limited number of sampling points (probably only about 6-12 sites) the deep augering penetrated below this sand dune cover layer into clays which are thought to be products of weathered bedrock.

Remote sensing allows us to solve this problem by making use of the physical characteristics of Quaternary deposits and the weathered bedrock, which influence internal drainage and the availability of soil moisture to the vegetation.

In the vertical dipole (horizontal coplanar) mode the EM 34-3 is very sensitive to vertical geological anomalies and is widely used for groundwater exploration in fractured, faulted and weathered bedrock zones.

At Jack Dam, several gravity and magnetic features along and adjacent to the prospective Bimba horizon were tested and returned numerous anomalous gold and copper values in the deeply weathered bedrock, including best results of :