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Which sedimentary rock has the coarsest grain flint or limestone or sandstone?
Wiki User
∙ 12y ago
== == The "coarseness" of a sedimentary rock refers to the rock's textural character, and more particularly, the size of grains contained within it. Thus, a conglomerate containing pebble or cobble clasts is coarser than a sandstone containing sand grains.
In the same way, a conglomerate containing boulders is coarser than a conglomerate containing pebbles.
Clastic sedimentary rocks are classified using the Wentworth Scale. The coarsest elements of this scale are the Rudites. Boulder rudites are conglomeratic rocks with grains of diameter greater than 256mm. They are the coarsest element described on the Wentworth Scale.
There is no upper limit to the scale of sedimentary coarseness, since the size of clast which can be preserved in a sedimentary rocks is potentially very large. 'Olistolith' is a term which describes very large clasts often derived from the sub-sea collapse of oversteepened slopes such as are found at continental margins. Sediments containing olistoliths may reasonably be described as the coarsest sedimentary rocks.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoThe coarsest sedimentary rock is conglomerate or breccia.
Wiki User
∙ 14y agoThe coarsest sedimentary rock is conglomerate and it is made by deposition.
Wiki User
∙ 11y agoconglomerate
Wiki User
∙ 12y agoSandstone
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Is sandstone or flint harder?
sandstone is not harder than flint because sandstone breaks in to smaller pieces.
What are 3 examples of sedimentry rock?
Shales: formed from silt and clay that have hardenedto form rock.Arenaceous: shale with large amounts of sandargillaceous: shale with large amounts of claycarbonaceous: shale with large amounts of coalcalcareous: shale with large amounts of limeandcalcium from shell life formssandstone: composed essentially of pressure-cemented grains of sand (quartz)conglomerate: composed of cemented pebbles intermixedwith sand- if the grains are angular, the rock istermed breccia.- if the rock is a glacial deposit, it is called tillite.Limestone: chemical sediment consisting primarily ofcalcite (calcium carbonate)dolomite: limestone in which some calcite has beenrepla
Is flint intrusive or extrusive?
Flint is a chemical sedimentary rock formed from the precipitation of silica rich solutions in layers of marine sediments.
What is the definition of a flint rock?
Flint is a microcrystalline sedimentary rock composed primarily of quartz, exhibiting a conchoidal fracture which made it useful in tool making.
Are arrowheads made from sedimentary rocks?
Arrowheads can be made of metal, bone, chert and flint (sedimentary rocks), or obsidian (volcanic glass).
Is sandstone or flint harder?
sandstone is not harder than flint because sandstone breaks in to smaller pieces.
What is the hardest rock flint or sandstone?
Flint
Is flint igneous or sedimentary?
Flint is a hard, sedimentary cryptocrystalline form of the mineral quartz.
What kind of rock is flint?
Flint is often referred to as a "Chemical Sedimentary" rock. Commonly formed when solid materials are dissolved by other means (water) and then redeposited in layers. This explains to a degree why flint has such a fine texture; it's comprised essentially of stuff that's small enough to be floating about in a glass of tap water. -S.M.
What minerals are in Stonehenge?
sarsen (a very hard type of sandstone) generic 'bluestone' - Welsh dolorite also a few other ingneous rock of volcanic origin micaceous sandstone (Altar stone) small amounts of limestone used in packing of uprights some 'geensand' - sandstone bedrock is chalk, flint is also present
What rocks are located in Ohio and what types are they?
Igneous, Sedimentary, and Metamorphic. Ohio's state rock is the Ohio Flint. Common rocks found in Ohio are; Coal (which is very sulfuric in the region), Concretions, Dolomite, Ironstone, Limestone, Shale, Sandstone, Flint, Conglomerate, Calcite, Celestite, Diamond, Fluorite, Galena, Gold, Gypsum, Hematite, Marcasite, Melanterite, Pyrite, Quartz, Sphalerite, Strontianite. Ohio also has non native rocks that have been imported from other places.
What are 3 examples of sedimentry rock?
Shales: formed from silt and clay that have hardenedto form rock.Arenaceous: shale with large amounts of sandargillaceous: shale with large amounts of claycarbonaceous: shale with large amounts of coalcalcareous: shale with large amounts of limeandcalcium from shell life formssandstone: composed essentially of pressure-cemented grains of sand (quartz)conglomerate: composed of cemented pebbles intermixedwith sand- if the grains are angular, the rock istermed breccia.- if the rock is a glacial deposit, it is called tillite.Limestone: chemical sediment consisting primarily ofcalcite (calcium carbonate)dolomite: limestone in which some calcite has beenrepla
Is flint intrusive or extrusive?
Flint is a chemical sedimentary rock formed from the precipitation of silica rich solutions in layers of marine sediments.
How do you tell that a rock is flint?
Flint is a common name for a form of sedimentary rock called chert, formed from microscopic siliceous (essentially quartz) skeletons of radiolarians. As such the hardness of chert is 7, which is slighly harder than glass and considerably harder than steel. If it will scratch glass it is likely to be flint. Flint is often mistaken for limestone or marble, which is much softer and will not scratch glass.
What is the transparency of flint?
Flint is a hard sedimentary form of quartz. It is not transparent. See the picture above.
Is flint easy to find?
you can find flint in limestone quarries and near bridges
What is the definition of a flint rock?
Flint is a microcrystalline sedimentary rock composed primarily of quartz, exhibiting a conchoidal fracture which made it useful in tool making.
