A report on Sedimentary rock
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation.
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Limestone
15 linksLimestone is a common type of carbonate sedimentary rock which is the main source of the material lime.
Shale
13 linksShale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.
Rock (geology)
9 linksAny naturally occurring solid mass or aggregate of minerals or mineraloid matter.
Any naturally occurring solid mass or aggregate of minerals or mineraloid matter.
Rocks are usually grouped into three main groups: igneous rocks, sedimentary rocks and metamorphic rocks.
Metamorphic rock
8 linksMetamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism.
Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism.
The protolith may be an igneous, sedimentary, or existing metamorphic rock.
Chert
9 linksChert is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide (SiO2).
Sandstone
8 linksClastic sedimentary rock composed mainly of sand-sized silicate grains.
Clastic sedimentary rock composed mainly of sand-sized silicate grains.
Sandstones comprise about 20–25% of all sedimentary rocks.
Igneous rock
7 linksIgneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic.
Sediment
7 linksNaturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles.
Naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles.
For example, sand and silt can be carried in suspension in river water and on reaching the sea bed deposited by sedimentation; if buried, they may eventually become sandstone and siltstone (sedimentary rocks) through lithification.
Feldspar
8 linksFeldspars are a group of rock-forming aluminium tectosilicate minerals, containing sodium, calcium, potassium, or barium.
Feldspars are a group of rock-forming aluminium tectosilicate minerals, containing sodium, calcium, potassium, or barium.
Feldspars are also found in many types of sedimentary rocks.
Weathering
7 linksDeterioration of rocks, soils and minerals as well as wood and artificial materials through contact with water, atmospheric gases, and biological organisms.
Deterioration of rocks, soils and minerals as well as wood and artificial materials through contact with water, atmospheric gases, and biological organisms.
Weathering is a crucial part of the rock cycle, and sedimentary rock, formed from the weathering products of older rock, covers 66% of the Earth's continents and much of its ocean floor.