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Group (stratigraphy), the Glossary

In geology, a group is a lithostratigraphic unit consisting of a series of related formations that have been classified together to form a group.^[1]

28 relations: Buntsandstein, Chronostratigraphy, Erg (landform), Geochronology, Geologic time scale, Geological formation, Glen Canyon Group, Glenwoody Formation, International Commission on Stratigraphy, Jurassic, Kayenta Formation, Keuper, Late Jurassic, Lias Group, Lithology, Lithostratigraphy, Middle Jurassic, Moenave Formation, Muschelkalk, Navajo Sandstone, New Mexico, Permian, Rotliegend, Stratigraphic unit, Triassic, Vadito Group, Wingate Sandstone, Zechstein.
Geological groups

Buntsandstein

The Buntsandstein (German for coloured or colourful sandstone) or Bunter sandstone is a lithostratigraphic and allostratigraphic unit (a sequence of rock strata) in the subsurface of large parts of west and central Europe.

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Chronostratigraphy

Chronostratigraphy is the branch of stratigraphy that studies the ages of rock strata in relation to time.

See Group (stratigraphy) and Chronostratigraphy

Erg (landform)

An erg (also sand sea or dune sea, or sand sheet if it lacks dunes) is a broad, flat area of desert covered with wind-swept sand with little or no vegetative cover.

See Group (stratigraphy) and Erg (landform)

Geochronology

Geochronology is the science of determining the age of rocks, fossils, and sediments using signatures inherent in the rocks themselves.

See Group (stratigraphy) and Geochronology

Geologic time scale

The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth.

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Geological formation

A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column).

See Group (stratigraphy) and Geological formation

Glen Canyon Group

The Glen Canyon Group is a geologic group of formations that is spread across the U.S. states of Nevada, Utah, northern Arizona, north west New Mexico and western Colorado.

See Group (stratigraphy) and Glen Canyon Group

Glenwoody Formation

The Glenwoody Formation is a geological formation that is exposed in the cliffs southeast of the Rio Grande Gorge near the town of Pilar and in a few other locations in the Picuris Mountains.

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International Commission on Stratigraphy

The International Commission on Stratigraphy (ICS), sometimes unofficially referred to as the "International Stratigraphic Commission", is a daughter or major subcommittee grade scientific daughter organization that concerns itself with stratigraphical, geological, and geochronological matters on a global scale.

See Group (stratigraphy) and International Commission on Stratigraphy

Jurassic

The Jurassic is a geologic period and stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya.

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Kayenta Formation

The Kayenta Formation is a geological formation in the Glen Canyon Group that is spread across the Colorado Plateau province of the United States, including northern Arizona, northwest Colorado, Nevada, and Utah.

See Group (stratigraphy) and Kayenta Formation

Keuper

The Keuper is a lithostratigraphic unit (a sequence of rock strata) in the subsurface of large parts of west and central Europe.

See Group (stratigraphy) and Keuper

Late Jurassic

The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 161.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.

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Lias Group

The Lias Group or Lias is a lithostratigraphic unit (a sequence of rock strata) found in a large area of western Europe, including the British Isles, the North Sea, the Low Countries and the north of Germany.

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Lithology

The lithology of a rock unit is a description of its physical characteristics visible at outcrop, in hand or core samples, or with low magnification microscopy.

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Lithostratigraphy

Lithostratigraphy is a sub-discipline of stratigraphy, the geological science associated with the study of strata or rock layers.

See Group (stratigraphy) and Lithostratigraphy

Middle Jurassic

The Middle Jurassic is the second epoch of the Jurassic Period.

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Moenave Formation

The Moenave Formation is a Mesozoic geologic formation, in the Glen Canyon Group.

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Muschelkalk

The Muschelkalk (German for "shell-bearing limestone"; calcaire coquillier) is a sequence of sedimentary rock strata (a lithostratigraphic unit) in the geology of central and western Europe.

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Navajo Sandstone

The Navajo Sandstone is a geological formation in the Glen Canyon Group that is spread across the U.S. states of southern Nevada, northern Arizona, northwest Colorado, and Utah as part of the Colorado Plateau province of the United States.

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New Mexico

New Mexico (Nuevo MéxicoIn Peninsular Spanish, a spelling variant, Méjico, is also used alongside México. According to the Diccionario panhispánico de dudas by Royal Spanish Academy and Association of Academies of the Spanish Language, the spelling version with J is correct; however, the spelling with X is recommended, as it is the one that is used in Mexican Spanish.; Yootó Hahoodzo) is a state in the Southwestern region of the United States.

See Group (stratigraphy) and New Mexico

Permian

The Permian is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.902 Mya.

See Group (stratigraphy) and Permian

Rotliegend

The Rotliegend, Rotliegend Group or Rotliegendes (the underlying red) is a lithostratigraphic unit (a sequence of rock strata) of latest Carboniferous to Guadalupian (middle Permian) age that is found in the subsurface of large areas in western and central Europe.

See Group (stratigraphy) and Rotliegend

Stratigraphic unit

A stratigraphic unit is a volume of rock of identifiable origin and relative age range that is defined by the distinctive and dominant, easily mapped and recognizable petrographic, lithologic or paleontologic features (facies) that characterize it. Group (stratigraphy) and stratigraphic unit are geological groups.

See Group (stratigraphy) and Stratigraphic unit

References

[1] https://en.wikipedia.org/wiki/Group_(stratigraphy)

Also known as Geologic group, Geological group, Group (geology), Stratigraphic group.