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2. Gravel - Wikipedia

   en.wikipedia.org/wiki/Gravel

   Gravel (largest fragment in this photo is about 40 mm (1.6 in)) Gravel (/ ˈ ɡ r æ v əl /) is a loose aggregation of rock fragments.Gravel occurs naturally on Earth as a result of sedimentary and erosive geological processes; it is also produced in large quantities commercially as crushed stone.

3. Construction aggregate - Wikipedia

   en.wikipedia.org/wiki/Construction_aggregate

   In Europe, sizing ranges are specified as d/D, where the d shows the smallest and D shows the largest square mesh grating that the particles can pass. Application-specific preferred sizings are covered in European Standard EN 13043 for road construction, EN 13383 for larger armour stone, EN 12620 for concrete aggregate, EN 13242 for base layers of road construction, and EN 13450 for railway ...

4. Shingle beach - Wikipedia

   en.wikipedia.org/wiki/Shingle_beach

   A shingle beach, also known as either a cobble beach or gravel beach, is a commonly narrow beach that is composed of coarse, loose, well-rounded, and waterworn gravel, called shingle. The gravel (shingle) typically consists of smooth, spheroidal to flattened, pebbles , cobbles , and sometimes small boulders , generally in the 20 to 200 ...

5. Thorpe Park No 1 Gravel Pit - Wikipedia

   en.wikipedia.org/wiki/Thorpe_Park_No_1_Gravel_Pit

   Thorpe Park No 1 Gravel Pit is a 42.5-hectare (105-acre) biological Site of Special Scientific Interest (SSSI) east of Virginia Water in Surrey. [ 1 ] [ 2 ] It is part of the Thorpe Park theme park. Ecology

6. Hay-a-Park Gravel Pit - Wikipedia

   en.wikipedia.org/wiki/Hay-a-Park_Gravel_Pit

   Hay-a-Park Gravel Pit is a Site of Special Scientific Interest, or SSSI, adjacent to the east side of the town of Knaresborough, North Yorkshire, England. Having been a disused and flooded quarry since the 1970s, it now consists of the large Hay-a-Park Lake and three smaller ponds, besides associated reedbeds , scrub , woodland and grassland .

7. Upper Nene Valley Gravel Pits - Wikipedia

   en.wikipedia.org/wiki/Upper_Nene_Valley_Gravel_Pits

   Upper Nene Valley Gravel Pits is a 1,382.4 hectare biological Site of Special Scientific Interest in a chain of flooded gravel pits along 35 kilometres of the valley of the River Nene between Northampton and Thorpe Waterville (east of Kettering) in Northamptonshire, England.