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See searches and references containing GROUP STRATIGRAPHY!GROUP STRATIGRAPHY
Group of geologic formations
Formations are the fundamental unit of stratigraphy. Groups may sometimes be combined into supergroups. Groups are useful for showing relationships between
Group_(stratigraphy)
Topics referred to by the same term
Group (database) Group (online social networking) Usenet newsgroup Google Groups Yahoo! Groups Facebook groups Group (stratigraphy), in geology, consisting
Group
Study of archaeological sedimentation for dating purposes
Stratigraphy is a key concept to modern archaeological theory and practice. Modern excavation techniques are based on stratigraphic principles. The concept
Stratigraphy_(archaeology)
fossils dating back to the Cretaceous period. Most of the La Jolla Group stratigraphy was deposited during the Eocene when sea level was higher than its
La_Jolla_Group
Study and analysis of groups of sedimentary deposits
Sequence stratigraphy is a form of stratigraphy that attempts to discern and understand historic geology through time by subdividing and linking sedimentary
Sequence_stratigraphy
Research group studying the Anthropocene
on Quaternary Stratigraphy (SQS), a constituent body of the International Commission on Stratigraphy (ICS). As of 2021, the research group features 37 members
Anthropocene_Working_Group
Geologic group in the North Sea
The Brent Group is a stratigraphic group of Middle Jurassic age. It is an important hydrocarbon reservoir in the Northern North Sea. It is named for the
Brent_Group
the Meguma terrane, Nova Scotia, Canada: Resolution of early Paleozoic stratigraphy and implications for paleogeography". Geological Society of America Bulletin
Goldenville_Group
System that relates geologic strata to time
Chronostratigraphy is the branch of stratigraphy that organises all the rocks of the Earth's crust into groups, known as chronostratigraphic units, based
Geologic_time_scale
Volume of rock
fossil group. This is a special case of a range zone. Chronostratigraphy Glaciology Magnetostratigraphy Sedimentology Sequence stratigraphy Stratigraphy 2004
Stratigraphic_unit
Purilactis Group stratigraphy. Fourth ISAG, Goettingen. Goettingen, Germany. Charrier, Reynaldo; Reutter, Klaus-J. (1990). "The Purilactis Group of Northern
Purilactis_Group
The Bend Group is a geologic group in Texas. It preserves fossils dating back to the Carboniferous period. Earth sciences portal Texas portal Paleontology
Bend_Group
Geologic unit found in the Illinois Basin, U.S.
, and Keller, S. J., 1995, Subsurface stratigraphy and distribution of oil fields of the Buffalo Wallow Group (Mississippian) in Indiana: Indiana Geological
Pope_Mega_Group
The Jackson Group is a geologic group in Arkansas, North Carolina and Tennessee. It preserves fossils dating back to the Paleogene to Neogene period.
Jackson_Group
Geologic group in West Virginia
The Mauch Chunk Group is a geologic group in West Virginia. It preserves fossils dating back to the Carboniferous period. Earth sciences portal Paleontology
Mauch_Chunk_Group
Topics referred to by the same term
within a language family (see also subgrouping) a subgroup of a group (stratigraphy) This disambiguation page lists articles associated with the title
Subgroup_(disambiguation)
Geologic formation in Belgium
Ieper Group was redefined by Steurbaut in 2006, and is since 2017 subdivided into five formations by the National Commission for the Stratigraphy of Belgium
Ieper_Group
Geologic group in the southern United States
The Midway Group is a geologic group in the Mississippi Embayment of Tennessee, Arkansas, Mississippi, Louisiana, Texas and Alabama. It preserves fossils
Midway_Group
Geologic formation in the western United States
Geologists Bulletin, v. 46, no. 11, p. 2003-2018 Mississippian Madison group stratigraphy and sedimentation in Wyoming and southern Montana, by John Michael
Madison_Group
Geological formation in South America
A. (2000). Ichnology, sedimentary dynamics, and sequence stratigraphy of the Mesón Group: A Cambrian macrotidal shallow-marine depositional system in
Mesón_Group
American geologist (1916–1997)
Curtis, titled "Wilcox (Eocene) Stratigraphy, a Key to Production". The paper analyzed Eocene Wilcox Group stratigraphy and its implications for petroleum
Dorothy_Jung_Echols
Geologic group in Kentucky and Ohio, United States
Ordovician Period. The Cincinnati Group Has produced many fossil animals. The stratigraphy of the Cincinnati Group is complex and the different constituents
Cincinnati_Group
The Group is notable for its fossil content, including those of dinosaurs. Sattayarak, Nares (1983). "Review of the Continental Mesozoic Stratigraphy of
Khorat_Group
Sedimentary sequence of Ordovician limestone
that was deposited atop the Decorah Shale. It is part of the Ordovician stratigraphy of the Upper Midwestern United States. It was deposited in a calm marine
Galena_Group
Endorheic rift basin in southwestern Tanzania
2010). "Sedimentology and depositional environments of the Red Sandstone Group, Rukwa Rift Basin, southwestern Tanzania: New insight into Cretaceous and
Rukwa_Rift_Basin
Bea-Yeh (1995). "Revised stratigraphy and correlations of the Niagaran provincial series (Medina, Clinton, and Lockport groups) in the type area of western
Medina_Group
Widespread shallow marine limestone
BLACK RIVER AND TRENTON GROUPS (UPPER ORDOVICIAN) IN THE BLACK RIVER VALLEY: REVISITED THROUGH TRADITIONAL AND SEQUENCE STRATIGRAPHY" (PDF). Retrieved 30
Trenton_Group
Geologic group in Alaska
The Lisburne Group is a geologic group in Alaska. It preserves fossils dating back to the Carboniferous period. Earth sciences portal Alaska portal Paleontology
Lisburne_Group
The McLeansboro Group is a geologic group in Indiana, Illinois and Kentucky. It preserves fossils dating back to the Carboniferous period. Earth sciences
McLeansboro_Group
Geological group in eastern Morocco
The Kem Kem Group (commonly known as the Kem Kem beds) is a geological group in the Kem Kem region of eastern Morocco, whose strata date back to the Cenomanian
Kem_Kem_Group
Kappel, William M.; Yager, Richard M. "Stratigraphy, Structural Geology, and Hydrogeology of the Lockport Group: Niagara Falls Area, New York" (PDF). New
Lockport_Group
Group of a common ancestor and all of their descendants
of clades cannot be directly observed. They are inferred, either from stratigraphy of fossils, or from molecular clock estimates. Viruses, and particularly
Clade
Geological group in mid Wales
The Cwmystwyth Grits Group is a Silurian lithostratigraphic group (a sequence of rock strata) in mid Wales. The name is derived from the village of Cwmystwyth
Cwmystwyth_Grits_Group
The Mull Lava Group is a Palaeogene lithostratigraphic group (a sequence of rock strata) in the west Highlands of Scotland. The name is derived from the
Mull_Lava_Group
Geologic group in North America
Middle Wilcox Reservoirs, East Central Louisiana Bammel, Bobby H (1979). "Stratigraphy of the Simsboro Formation, East-Central Texas" (PDF). Baylor University
Wilcox_Group
Assemblage of Upper Triassic and Lower Jurassic sedimentary rocks
Nadon, G. C.; Middleton, G. V. (1985-08-01). "The stratigraphy and sedimentology of the Fundy Group (Triassic) of the St. Martins area, New Brunswick"
Newark_Supergroup
Geologic formation on the Dingle Peninsula, Ireland
The Smerwick Group is a Devonian lithostratigraphic group (a sequence of rock strata) in the Dingle peninsula, County Kerry, Ireland. The name is derived
Smerwick_Group
Group of Triassic rocks in the United Kingdom
Heritage. p. 10. Retrieved 11 October 2011. Gallois, R.W. 2019. The stratigraphy of the Permo-Triassic rocks of the Dorset and East Devon Coast World
Mercia_Mudstone_Group
Geologic group in North America
Geological Survey of Kansas. p. Stratigraphy). Retrieved 2021-05-20. Later, Hayden (1876, p. 45) coined the term "Colorado Group" for No. 2 (Fort Benton), No
Colorado_Group
Assemblage of geologic formations in Canada
of Huronian Stratigraphy". Archived from the original on 2006-10-02. Retrieved 2010-08-18. "Preliminary Redefinition of the Cobalt Group (Huronian Supergroup)
Huronian_Supergroup
Geological group in eastern Greenland
margin). Kent, D.V.; Clemmensen L.B. (1996). "Paleomagnetism and cycle stratigraphy of the Triassic Fleming Fjord and Gipsdalen Formations of East Greenland"
Kap_Stewart_Group
The Llanbedrog Volcanic Group is an Ordovician lithostratigraphic group (a sequence of rock strata) in northwest Wales. The name is derived from the village
Llanbedrog_Volcanic_Group
William H. Straight, and Jonathan R. Wagner, 2018. Stratigraphy and depositional history of the Tornillo Group (Upper Cretaceous–Eocene) of West Texas. Geosphere
Tornillo_Group
Succession of sedimentary rocks in Zambia
Zambia. Unrug, R (May 1984). "The mid-Proterozoic Mporokoso Group of northern Zambia: Stratigraphy, sedimentation and regional position". Precambrian Research
Mporokoso_Group
Rhaetian age (Triassic) rock strata sequence
The Penarth Group is a Rhaetian age (Triassic) lithostratigraphic group (a sequence of rock strata) which is widespread in Britain. It is named from the
Penarth_Group
Geologic group in Kansas, United States
(2013). "Pennsylvanian stratigraphy of Northern Midcontinent Shelf and biostratigraphic correlation of cyclothems". Stratigraphy. 10 (1–2): 7, TEXT-FIGURE
Wabaunsee_Group
Stratigraphic group in Australia
ammonites. "Champion Bay Group". Australian Stratigraphic Units Database. Geoscience Australia and Australian Stratigraphy Commission. Retrieved 22 August
Champion_Bay_Group
Unused geological term
Newfoundland. Canadian Journal of Earth Sciences, 11:319–323. "Stratigraphy of the Bonavista Group, southeastern Newfoundland: growth faults and the..." (PDF)
Inlet_Group
Geological formation in Great Britain
The Thames Group is an Eocene lithostratigraphic group (a sequence of rock strata) which is widespread in southeast England, especially in the Hampshire
Thames_Group
Middle subdivision of the British Ordovician rocks
In geology, the Llandeilo Group is the middle subdivision of the British Ordovician rocks. It was first described and named by Sir Roderick Murchison
Llandeilo_Group
Widespread geologic group in the Southeastern United States
; Nowlan, G. S. (2003). "Reappraisal of the Beekmantown Group sedimentology and stratigraphy, Montréal area, southwestern Quebec: Implications for understanding
Knox_Supergroup
Geologic group in Illinois, Indiana, and Kentucky
The Raccoon Creek Group is a geologic group in Indiana. It preserves fossils dating back to the Carboniferous period. The Brazil Formation is a geologic
Raccoon_Creek_Group
Set of geologic units on Mercury
where ejecta from the better preserved basins was used to construct a stratigraphy, the ejecta from the Caloris Basin also can be used as a marker horizon
Caloris_Group
Sequence of rock strata in Scotland
The Caithness Flagstone Group is a Devonian lithostratigraphic group (a sequence of rock strata) in northern Scotland. The name is derived from the traditional
Caithness_Flagstone_Group
Geological group in Wisconsin
not extend where the glaciers did not. Sequence stratigraphy Stratigraphy Glaciology "Sinnipee Group". United States Geological Survey. Retrieved 20 October
Sinnipee_Group
Rock surface indicating a gap in the geological record
ISBN 9780495011484. Boggs, Sam (2006). Principles of sedimentology and stratigraphy (4th ed.). Upper Saddle River, N.J.: Pearson Prentice Hall. p. 405. ISBN 0131547283
Unconformity
Salt flat in Chile
Purilactis Group stratigraphy. Fourth ISAG, Goettingen. Goettingen, Germany. Charrier, Reynaldo; Reutter, Klaus-J. (1990). "The Purilactis Group of Northern
Salar_de_Atacama
Group of rock formations
The Exeter Group is a Permian lithostratigraphic group (a sequence of rock strata) which occurs through East Devon in southwest England. The name is derived
Exeter_Group
Geological group in Gwynedd, Wales
The Mawddach Group is a middle to upper Cambrian lithostratigraphic group (a sequence of rock strata) in Gwynedd, Wales. The name is derived from the river
Mawddach_Group
Group of geologic formations in the Colorado Plateau, USA
W.; Anderson, O.J. (1997). "Stratigraphy, biostratigraphy, and sequence stratigraphy of the Upper Triassic Chinle Group, Four Corners region" (PDF).
Glen_Canyon_Group
Current geological epoch
Subcommission on Quaternary Stratigraphy (SQS) of the International Commission on Stratigraphy (ICS) had a working group to determine whether it should
Holocene
X. (1985). [The Jurassic Reptilia]. [The Jurassic System of China. Stratigraphy of China, No. 11] 286–290. Weishampel, David B; et al. (2004). "Dinosaur
Dapuka_Group
deposited during regression and topped with erosional sequence boundary. Slite Group Hangvar Formation Tofta Formation Högklint Formation Upper Visby Formation
Geology_of_Gotland
Stratigraphic Group in England
The Wealden Group, occasionally also referred to as the Wealden Supergroup, is a group (a sequence of rock strata) in the lithostratigraphy of southern
Wealden_Group
Siliciclastic group of marine Ediacaran strata
2019-01-16 O’Brien, S.J.; King, A.F. "LATE NEOPROTEROZOIC (EDIACARAN) STRATIGRAPHY OF AVALON ZONE SEDIMENTARY ROCKS, BONAVISTA PENINSULA, NEWFOUNDLAND"
Signal_Hill_Group
Lithostratigraphic unit
The Landen Group is a lithostratigraphic unit (a "group" of rock strata) in the Belgian subsurface. The group consists of two formations of Thanetian (late
Landen_Group
Vincent; Clarke, Dougie; Clarke, Petya B. (2007). "A Mitochondrial Stratigraphy for Island Southeast Asia". American Journal of Human Genetics. 80 (1):
Taiwanese_indigenous_peoples
Silurian lithostratigraphic group in Ireland
The Dunquin Group is a Silurian lithostratigraphic group (a sequence of rock strata) in the Dingle peninsula, Munster, Ireland. The name is derived from
Dunquin_Group
Geological unit
The Lower Greensand Group is a geological unit present across large areas of Southern England. It was deposited during the Aptian and Albian ages of the
Lower_Greensand_Group
Geologic formation in Missouri, US
"Kansas Geological Survey--Johnson County Geohydrology--Kansas City Group: Stratigraphy of Outcropping Rocks". Kansas Geological Survey. April 2002 [Originally
Cherryvale_Formation
2nd Series (4). Petty, David M. (2003). "Sequence Stratigraphy of the Pahasapa Formation (Madison Group) in the Northeastern Black Hills: Insights from
Pahasapa_Formation
Ongoing mountain-forming process in South America
de Atacama basin, northern Chile: A reappraisal of the Purilactis Group stratigraphy. Fourth ISAG, Goettingen. Goettingen, Germany. Devries, T.J. (1998)
Andean_orogeny
Geologic group in the Orkney Islands, Scotland
The Yesnaby Sandstone Group is a Devonian lithostratigraphic group (a sequence of rock strata) in west Mainland Orkney, Scotland. The name is derived from
Yesnaby_Sandstone_Group
westernmost front ranges. Glass, D.J. (editor) 1997. Lexicon of Canadian Stratigraphy, vol. 4, Western Canada including eastern British Columbia, Alberta,
Spray_Lakes_Group
Fundamental unit of lithostratigraphy
geologic discipline of stratigraphy, and the formation is the fundamental unit of stratigraphy. Formations may be combined into groups of strata or divided
Geological_formation
Extinct genus of plants
(1992). "Late Devonian shoreline changes: an analysis of Witteberg Group stratigraphy in the Grahamstown area". South African Journal of Geology. 5: 203–214
Kowieria
The Grampian Group is an estimated 9,000 m thick sequence of metamorphosed Neoproterozoic sedimentary rocks that outcrop across the Central Highlands
Grampian_Group
Geologic formation in Australia
Retrieved November 13, 2020. Lovering, J. F. (1954). "The stratigraphy of the Wianamatta Group, Triassic System, Sydney Basin" (PDF). Records of the Australian
Wianamatta_Group
Geologic group of western Texas and eastern New Mexico
his "Chinle Group" should be named the Dockum Group due to stratigraphic nomenclature rules. Lehman (1994) advocated a simplified stratigraphy of up to five
Dockum_Group
The Llewelyn Volcanic Group is an Ordovician lithostratigraphic group (a sequence of rock strata) in Snowdonia, north-west Wales. The name is derived
Llewelyn_Volcanic_Group
Solar Group (Spanish: Grupo Morro Solar) is a stratigraphic group of Mesozoic-aged sedimentary formations exposed near Lima, Peru. The groups formations
Morro_Solar_Group
Geological formations in Morocco
(2008-10-27). "Jurassic (uppermost Sinemurian - Aalenian) sequence stratigraphy and geodynamic evolution of the Ait Bou Guemmez area (Central High Atlas
Tafraout_Group
Geologic Group found in the Appalachian Basin
Bartholomew, Alex; Benedict, Lucas; Matteson, Lucas; Shaw, George. "DEVONIAN STRATIGRAPHY AND K-BENTONITES IN THE CHERRY VALLEY – SCHOHARIE VALLEY REGION". Research
Helderberg_Group_(geology)
Stratigraphic unit in England
The Chalk Group (often just called the Chalk) is the lithostratigraphic unit (a certain number of rock strata) which contains the Upper Cretaceous limestone
Chalk_Group
Geologic group in the Appalachian Basin, U.S.
Falls Group is a geologic group in the Appalachian Basin. It dates back to the Devonian period. Also stratigraphically equivalent to the Portage Group. The
West_Falls_Group
The Skomer Volcanic Group is a Silurian lithostratigraphic group (a sequence of rock strata) in Pembrokeshire, Wales. The name is derived from the island
Skomer_Volcanic_Group
Hadrosaurid dinosaur genus from Late Cretaceous US and Canada
David A. (2002). "Review and comparison of Belly River Group and Edmonton Group stratigraphy and stratigraphic architecture in the southern Alberta Plains"
Edmontosaurus
Stratigraphic unit of the Lockport Formation
Geological Survey proposed a revised stratigraphy based on studies in the Niagara region. It extended the Lockport to Group status and included, from base to
Eramosa_Member
Geologic formation in Norway
Norway Vidal, G.; Moczydłowska, M. (1995). "The Neoproterozoic of Baltica stratigraphy, palaeobiology and general geological evolution". Precambrian Research
Hedmark_Group
Geologic group in southeastern Brazil
The Areado Group is a Late Jurassic to Early Cretaceous (Tithonian to Albian; covering approximately 50 million years) geologic group in southeastern Brazil
Areado_Group
History of Earth 4600–539 million years ago
United States Geological Survey and the International Commission on Stratigraphy regard the term as informal. Because the span of time falling under the
Precambrian
Group in Orkney Islands, Scotland
The Eday Group is a Devonian lithostratigraphic group (a sequence of rock strata) in Orkney, northern Scotland. The name is derived from the island of
Eday_Group
Group of geologic formations in the western United States
Retrieved 31 August 2021. Hale, L.A. (1961). "Late Cretaceous (Montanan) stratigraphy eastern Washakie basin, Carbon County, Wyoming". Wyoming Geological Association
Mesaverde_Group
Large area of basaltic lava in south-central British Columbia, Canada
Western Canada Wells Gray-Clearwater volcanic field Regional stratigraphy and age of Chilcotin Group basalts, south-central British Columbia Retrieved on 2012-09-22
Chilcotin_Group
Large Geologic Group
DEPARTMENT OF NATURAL RESOURCES. Rickard, Lawernce (1969). "Stratigraphy of the Upper Silurian Salina Group New York, Pennsylvania, Ohio, Ontario" (PDF). New York
Salina_Group
Geological group in west Wales
The Drefach Group is an Ordovician lithostratigraphic group (a sequence of rock strata) in west Wales. The name is derived from the village of Drefach
Drefach_Group
Topographical feature in Washington State
Olympic–Wallowa Lineament, Hite Fault System, and Columbia River Basalt Group Stratigraphy in northeast Umatilla County, Oregon (M.S. Geology). Washington State
Yakima_Fold_Belt
Geological group in Spain
The Tera Group is a geological group in the Cameros Basin and Sierra de la Demanda in Burgos, Spain. The group contains several formations whose strata
Tera_Group
Lithostratigraphic group in England
the Purbeck Formation. Ensom in 1985 and Clements in 1993 detailed the stratigraphy of the Worbarrow Tout and Durlston Bay sections respectively, with the
Purbeck_Group
Geologic group in Norway
Challinor, A.; Harland, W. Brian; Parker, J.R. (1965). The Triassic Stratigraphy of Svalbard. Oslo: Norsk Polarinstitutt. Harland, W. Brian (1997). The
Kapp_Toscana_Group
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