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Grus (geology)

Index Grus (geology)

Grus is an accumulation of angular, coarse-grained fragments (particles of sand and gravel) resulting from the granular disintegration by the processes of chemical and mechanical weathering of crystalline rocks (most notably granitoids) generally in an arid or semiarid region. [1]

15 relations: Arid, Arkose, Cementation (geology), Cenozoic, Crystal, Exfoliation joint, Granitoid, Gravel, Kaolinite, Laterite, Mesozoic, Sand, Sandstone, Saprolite, Weathering.

Arid

A region is arid when it is characterized by a severe lack of available water, to the extent of hindering or preventing the growth and development of plant and animal life.

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Arkose

Arkose is a detrital sedimentary rock, specifically a type of sandstone containing at least 25% feldspar.

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Cementation (geology)

Cementation involves ions carried in groundwater chemically precipitating to form new crystalline material between sedimentary grains.

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Cenozoic

The Cenozoic Era meaning "new life", is the current and most recent of the three Phanerozoic geological eras, following the Mesozoic Era and, extending from 66 million years ago to the present day.

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Crystal

A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

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Exfoliation joint

Exfoliation joints or sheet joints are surface-parallel fracture systems in rock, and often leading to erosion of concentric slabs.

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Granitoid

A granitoid or granitic rock is a variety of coarse grained plutonic rock similar to granite which mineralogically is composed predominantly of feldspar and quartz.

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Gravel

Gravel is a loose aggregation of rock fragments.

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Kaolinite

Kaolinite is a clay mineral, part of the group of industrial minerals, with the chemical composition Al2Si2O5(OH)4.

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Laterite

Laterite is a soil and rock type rich in iron and aluminium, and is commonly considered to have formed in hot and wet tropical areas.

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Mesozoic

The Mesozoic Era is an interval of geological time from about.

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Sand

Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.

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Sandstone

Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) mineral particles or rock fragments.

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Saprolite

Saprolite is a chemically weathered rock.

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Weathering

Weathering is the breaking down of rocks, soil, and minerals as well as wood and artificial materials through contact with the Earth's atmosphere, water, and biological organisms.

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References

[1] https://en.wikipedia.org/wiki/Grus_(geology)

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