Buried valley
Encyclopedia
A buried valley is an ancient river or stream valley that since has been filled with glacial or unconsolidated sediment
. http://www.dnr.state.oh.us/water/pubs/fs_div/fctsht46/tabid/4133/Default.aspx This sediment is made up of gravel
, sand
, silt
, and clay
. These types of sediment can often store and transmit large amounts of ground water.
Sediment
Sediment is naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of fluids such as wind, water, or ice, and/or by the force of gravity acting on the particle itself....
. http://www.dnr.state.oh.us/water/pubs/fs_div/fctsht46/tabid/4133/Default.aspx This sediment is made up of gravel
Gravel
Gravel is composed of unconsolidated rock fragments that have a general particle size range and include size classes from granule- to boulder-sized fragments. Gravel can be sub-categorized into granule and cobble...
, sand
Sand
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.The composition of sand is highly variable, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal...
, silt
Silt
Silt is granular material of a size somewhere between sand and clay whose mineral origin is quartz and feldspar. Silt may occur as a soil or as suspended sediment in a surface water body...
, and clay
Clay
Clay is a general term including many combinations of one or more clay minerals with traces of metal oxides and organic matter. Geologic clay deposits are mostly composed of phyllosilicate minerals containing variable amounts of water trapped in the mineral structure.- Formation :Clay minerals...
. These types of sediment can often store and transmit large amounts of ground water.