Gritstone or grit is a hard, coarse-grained, siliceoussandstone. This term is especially applied to such sandstones that are quarried for building material. British gritstone was used for millstones to mill flour, to grind wood into pulp for paper and for grindstones to sharpen blades. "Grit" is often applied to sandstones composed of angular sand grains. It may commonly contain small pebbles.[1]
"Millstone Grit" is an informal term for a succession of gritstones which are to be found in the Pennines (including the Peak District) of northern England.[2] These sediments were laid down in the late (upper) Paleozoic era, in the Carboniferous period, in deltaic conditions. The Millstone Grit Group is a formal stratigraphic term for this sequence of rocks.
The gritstone edges of the Peak District are an important climbing area and the rock is much relished by English climbers, among whom it has almost cult status and is often referred to as "God's own rock".[3] The rough surface provides outstanding friction, enabling climbers to stand on or grip the subtlest of features in the rock.
Referencesedit
^Neuendorf, K.K.E.; Mehl Jr., J.P.; Jackson, J.A., eds. (2005). Glossary of Geology (5th ed.). Alexandria, Virginia: American Geological Institute. ISBN0-922152-76-4.[page needed]
^Peter, Libby. . Climber Magazine. Archived from the original on 2016-08-02. Retrieved 2019-12-15.
^Whitehouse, Annie (1999). "An Interview with Derek Hersey". In Long, John; Sponholz, Hai-Van K (eds.). The High Lonesome: Epic Solo Climbing Stories. Helena, MT: Falcon Publishing. p. 77. ISBN1-56044-858-X.
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gritstone, grit, hard, coarse, grained, siliceous, sandstone, this, term, especially, applied, such, sandstones, that, quarried, building, material, british, gritstone, used, millstones, mill, flour, grind, wood, into, pulp, paper, grindstones, sharpen, blades. Gritstone or grit is a hard coarse grained siliceous sandstone This term is especially applied to such sandstones that are quarried for building material British gritstone was used for millstones to mill flour to grind wood into pulp for paper and for grindstones to sharpen blades Grit is often applied to sandstones composed of angular sand grains It may commonly contain small pebbles 1 The Salt Cellar a gritstone tor on Derwent Edge in the Peak District England Millstone Grit is an informal term for a succession of gritstones which are to be found in the Pennines including the Peak District of northern England 2 These sediments were laid down in the late upper Paleozoic era in the Carboniferous period in deltaic conditions The Millstone Grit Group is a formal stratigraphic term for this sequence of rocks The gritstone edges of the Peak District are an important climbing area and the rock is much relished by English climbers among whom it has almost cult status and is often referred to as God s own rock 3 The rough surface provides outstanding friction enabling climbers to stand on or grip the subtlest of features in the rock References edit Neuendorf K K E Mehl Jr J P Jackson J A eds 2005 Glossary of Geology 5th ed Alexandria Virginia American Geological Institute ISBN 0 922152 76 4 page needed Peter Libby Gritstone Climber Magazine Climber Magazine Archived from the original on 2016 08 02 Retrieved 2019 12 15 Whitehouse Annie 1999 An Interview with Derek Hersey In Long John Sponholz Hai Van K eds The High Lonesome Epic Solo Climbing Stories Helena MT Falcon Publishing p 77 ISBN 1 56044 858 X nbsp This article related to petrology is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Gritstone amp oldid 1194452886, wikipedia, wiki, book, books, library,
