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The products of chalk weathering are dissolved in rainwater and are transported in stream flow. Chalk streams transport little suspended material (unlike most rivers), but are considered "mineral-rich" due to the dissolved calcium and carbonate ions. The surface water of chalk streams is commonly described as "gin clear".
The word bourne derives from the Anglo-Saxon word for a stream. [1] It is an unnavigable tributary of the River Gade, which flows into the River Colne, which in turn is a tributary of the River Thames. The Bulbourne is an example of a chalk stream, which is a watercourse that flows from chalk-fed groundwater. Chalk streams are a very rare ...
The Gypsey Race rises in the Great Wold Valley [4] through a series of springs and flows intermittently between Duggleby and West Lutton where it runs underground in the chalk aquifer before re-surfacing in Rudston. It has been known during very wet conditions for the stream to re-appear at Wold Newton [5] some 4.3 miles (7 km) north-west of ...
The Hogsmill River in Surrey and Greater London, England, is a small chalk stream tributary of the River Thames.It rises in Ewell and flows into the Thames at Kingston upon Thames on the lowest non-tidal reach, that above Teddington Lock.
A wide variety of river and stream channel types exist in limnology, the study of inland waters.All these can be divided into two groups by using the water-flow gradient as either low gradient channels for streams or rivers with less than two percent (2%) flow gradient, or high gradient channels for those with greater than a 2% gradient.
Fire crews continue containment efforts on the Chalk Mountain Fire, which is the largest in the area at an estimated 6,000 acres as of Wednesday, as well as other fires in the region.
An extensive Neolithic ritual complex, the main elements of which are four large cursus monuments and a henge, is situated near the eastern end of the Great Wold Valley. More than 1,400 Bronze Age round barrows, comprising one or more burials and accompanied by items of grave goods, are known to exist on the Yorkshire Wolds.
Downland develops when chalk rock becomes exposed at the surface. The chalk slowly erodes to form characteristic rolling hills and valleys. As the Cretaceous chalk layer in southern England is typically tilted, chalk downland hills often have a marked scarp slope on one side, which is very steep, and a much gentler dip slope on the