Gravel

Gravel /ˈɡrævəl/ is composed of unconsolidated rock fragments that have a general particle size range and include size classes from granule- to boulder-sized fragments. Gravel is categorized by the Udden-Wentworth scale into granular gravel (2 to 4 mm or 0.079 to 0.157 in) and pebble gravel (4 to 64 mm or 0.2 to 2.5 in). One cubic yard of gravel typically weighs about 3000 pounds (or a cubic metre is about 1,800 kilograms).

Gravel is an important commercial product, with a number of applications. Many roadways are surfaced with gravel, especially in rural areas where there is little traffic. Globally, far more roads are surfaced with gravel than with concrete or tarmac; Russia alone has over 400,000 km (250,000 mi) of gravel roads. Both sand and small gravel are also important for the manufacture of concrete.

Geological formation

Large gravel deposits are a common geological feature, being formed as a result of the weathering and erosion of rocks. The action of rivers and waves tends to pile up gravel in large accumulations. This can sometimes result in gravel becoming compacted and concreted into the sedimentary rock called conglomerate. Where natural gravel deposits are insufficient for human purposes, gravel is often produced by quarrying and crushing hard-wearing rocks, such as sandstone, limestone, or basalt. Quarries where gravel is extracted are known as gravel pits. Southern England possesses particularly large concentrations of them due to the widespread deposition of gravel in the region during the Ice Ages.

Gravel (surname)

Gravel or Gravell is a surname. Notable people with the surname include:

Gravel (disambiguation)

Gravel is a type of rock.

Gravel or Gravell may also refer to:

Places

Music and entertainment

Jon Gooch

Jonathan Gooch (born 22 August 1984 in Hertfordshire, England), more commonly known by his stage names Feed Me and Spor, is a drum and bass, dubstep and electro house producer and DJ. He is currently managed by Three Six Zero Group.

Biography

Jon Gooch obtained the name Spor after an authentication of particular IP identities. After a successful partnership with Renegade Hardware and Barcode Recordings, and releases with Teebee's Subtitles Recordings, in 2006, Spor and long-term friend Chris Renegade launched Lifted Music and signed music from producers such as Apex, Evol Intent, Ewun and Phace.

On 24 February 2010, Spor released his second double EP, Conquerors and Commoners, on the Lifted Music label. In an interview with K Magazine, he said the title was inspired by a quote by Harlan Ellison. The album was well received by drum and bass fans, with two of the tracks from the album ("Halogen" and "Kingdom") being played on Andy C's Nightlife 5 mix CD. Spor has since then been playing his music at clubs across the world under the Lifted Music guise. Gooch was also involved in a second side project called "Seventh Stitch", which produced alternative IDM. Under this alias, he worked with another artist named Andrew Aker on a track entitled "Oceans".