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Besa River Formation
The Besa River Formation is a stratigraphical unit of Devonian age in the Western Canadian Sedimentary Basin. It takes the name from Besa River, a tributary of the Prophet River, and was first described in outcrop near the Muskwa River, in the Muskwa Ranges by F.A. Kidd in 1963.Kidd, F.A., 1963. The Besa River Formation: Bulletin of Canadian Petroleum Geology, vol. 11, no. 4, pp. 369-372. Lithology The Besa River Formation is composed primarily of dark shale. Sandstone, bedded chert or limestone beds can occur at the top of the formation. The shale is slightly calcareous or siliceous and contains sponge spicules and radiolarians. Distribution The Besa River Formation reaches a maximum thickness of in the foothills . The lower Besa River Formation is faulted and folded in the Northern Rockies. It occurs in the sub-surface in east-central British Columbia, in the folded Rocky Mountain Thrust Belt and southern Mackenzie Fold Belt. Relationship to other units The Besa Rive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness (geology), thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muskwa River
The Muskwa River flows through northern British Columbia, Canada. It is a major tributary of the Fort Nelson River - part of the Mackenzie River system. The river rises at Fern Lake in the Bedaux Pass in the Northern Rocky Mountains. From there, it flows generally east, then north, and then east again to meet with the Fort Nelson River just east of the town of Fort Nelson. The river drops approximately , its course taking it down the Rocky Mountain foothills through sub-alpine and boreal forest to meander across the forest and muskegs of the vast Liard River plains. From mouth to headwater, prominent tributaries include the Prophet River, Tuchodi River, and Gathto Creek. Much of the upper portions of this wilderness river and its watershed are located in the Northern Rocky Mountains Provincial Park, which is part of the larger Muskwa-Kechika Management Area. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Simpson Formation
The Fort Simpson Formation is a stratigraphical unit of Devonian age in the Western Canadian Sedimentary Basin. It takes the name from the settlement of Fort Simpson, and was first described in well Briggs Turkey Lake No. 1 (located south-east of Fort Simpson) by A.E. Cameron in 1918.Cameron, A.E., 1918. Explorations in the vicinity of Great Slave Lake. Geological Survey of Canada, Summary Report, 1917, Part C, p. 21-27. Lithology The Fort Simpson Formation is composed of grey shale and mudstone. The shale can be calcareous, silty or sandy. Distribution The Fort Simpson Formation reaches a thickness of over in the sub-surface of the Mackenzie River plain. It extends from northern Alberta to south-western northwest Territories and in north-eastern British Columbia (north of Peace River Arch). Relationship to other units The Fort Simpson Formation is overlain by the Jean Marie Member of the Redknife Formation in its eastern reaches, and progressively by the Kakisa Forma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Road River Formation
The Road River Formation is a geologic formation in Alaska. It preserves fossils dating back to the Silurian period. See also * List of fossiliferous stratigraphic units in Alaska * Paleontology in Alaska Paleontology in Alaska refers to paleontological research occurring within or conducted by people from the U.S. state of Alaska. During the Late Precambrian, Alaska was covered by a shallow sea that was home to stromatolite-forming bacteria. Alask ... References * Geologic formations of Alaska Silurian System of North America Ordovician northern paleotropical deposits Silurian northern paleotropical deposits Devonian southern paleotropical deposits {{Silurian-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nahanni Formation
The Nahanni Formation is a stratigraphical unit of Givetian age in the Western Canadian Sedimentary Basin. It takes the name from Nahanni Butte, a prominent ridge at the confluence of the South Nahanni River and Liard River, and was first described in outcrop on the south face of the mountain by C.O. Hage in 1945.Hage, C.O., 1945. Geological reconnaissance along the lower Liard River, British Columbia, Yukon and Northwest Territories. Geol. Surv. Can., Paper 45-22. Lithology The Nahanni Formation is composed of dolomitic limestone. Petroleum geology gas is produced from the Nahanni Formation in the Mackenzie River Valley. Paleontology The Nahanni Formation contains paleofauna composed of corals, brachiopods and trilobites. Distribution The Nahanni Formation reaches a maximum thickness of at Nahanni Butte, and has typical thickness of . It occurs from the Franklin Mountains in the north to north-eastern British Columbia in the south. Relationship to other units ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northwest Territories
The Northwest Territories (abbreviated ''NT'' or ''NWT''; french: Territoires du Nord-Ouest, formerly ''North-Western Territory'' and ''North-West Territories'' and namely shortened as ''Northwest Territory'') is a federal territory of Canada. At a land area of approximately and a 2016 census population of 41,790, it is the second-largest and the most populous of the three territories in Northern Canada. Its estimated population as of 2022 is 45,605. Yellowknife is the capital, most populous community, and only city in the territory; its population was 19,569 as of the 2016 census. It became the territorial capital in 1967, following recommendations by the Carrothers Commission. The Northwest Territories, a portion of the old North-Western Territory, entered the Canadian Confederation on July 15, 1870. Since then, the territory has been divided four times to create new provinces and territories or enlarge existing ones. Its current borders date from April 1, 1999, when t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stoddart Group
The Stoddart Group is a stratigraphical unit of Mississippian to Early Pennsylvanian age in the Western Canadian Sedimentary Basin. It takes the name from the Stoddart Creek, a creek that flows into Charlie Lake north of Fort St. John, and was first described in well Pacific Fort St. John #23 (at depths from 2000 to 2600m) by A.T.C. Rutgers in 1958. Lithology The Formation is composed of both carbonate and clastic facies. Distribution The Stoddart Group reaches a maximum thickness of in the sub-surface north of Fort St. John in north-eastern British Columbia. It is present in the sub-surface from the foothills of the Northern Rockies and eastwards into the Peace River Country in north-western Alberta. Subdivisions The Stoddart Group is composed of the following formations, from top to bottom: Relationship to other units The Stoddart Group is overlain by the Ishbel Group in the foothills and the Prophet Formation in the northern plains; it conformably overlays the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mattson Formation
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British Columbia
British Columbia (commonly abbreviated as BC) is the westernmost Provinces and territories of Canada, province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, forests, lakes, mountains, inland deserts and grassy plains, and borders the province of Alberta to the east and the Yukon and Northwest Territories to the north. With an estimated population of 5.3million as of 2022, it is Canada's Population of Canada by province and territory, third-most populous province. The capital of British Columbia is Victoria, British Columbia, Victoria and its largest city is Vancouver. Vancouver is List of census metropolitan areas and agglomerations in Canada, the third-largest metropolitan area in Canada; the 2021 Canadian census, 2021 census recorded 2.6million people in Metro Vancouver Regional District, Metro Vancouver. The First Nations in Canada, first known human inhabi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Rockies
The Northern Rocky Mountains, usually referred to as the Northern Rockies, are a subdivision of the Canadian Rockies comprising the northern half of the Canadian segment of the Rocky Mountains. While their northward limit is easily defined as the Liard River, which is the northward terminus of the whole Rockies, the southward limit is debatable, although the area of Mount Ovington and Monkman Pass is mentioned in some sources, as south from there are the Continental Ranges, which are the main spine of the Rockies forming the boundary between British Columbia and Alberta.''Landforms of British Columbia'', S. Holland, BC Govt, Bulletin 50, reprinted 1976. Some use the term to mean only the area north of the Peace Arm of the Williston Reservoir, and in reference to Northern Rocky Mountains Provincial Park, while others consider the term to extend all the way south, beyond the limit of the Hart Ranges at Mount Ovington, to include the McBride area, the Sir Alexander Group and Mount ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lexicon Of Canadian Geologic Units
The Lexicon of Canadian Geologic Units, also called the Lexicon of Canadian Geological Names or simply the Lexicon, is an online database provided by the Government of Canada. It includes the names of more than 16,000 geologic units throughout Canada, as well as information about each geologic unit from several sources. The names of these geologic units may be formal, informal or undefined; they may also be obsolete or currently in use. The Lexicon of Canadian Geologic Units includes both lithological units and chronological Chronology (from Latin ''chronologia'', from Ancient Greek , ''chrónos'', "time"; and , ''-logia'') is the science of arranging events in their order of occurrence in time. Consider, for example, the use of a timeline or sequence of events. It ... units, the latter of which may be searched only by age or name. In addition to age and name, geologic units in the Lexicon may also be searched by first citation, by source data set or by province or territory. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiolarian
The Radiolaria, also called Radiozoa, are protozoa of diameter 0.1–0.2 mm that produce intricate mineral skeletons, typically with a central capsule dividing the cell into the inner and outer portions of endoplasm and ectoplasm. The elaborate mineral skeleton is usually made of silica. They are found as zooplankton throughout the global ocean. As zooplankton, radiolarians are primarily heterotrophic, but many have photosynthetic endosymbionts and are, therefore, considered mixotrophs. The skeletal remains of some types of radiolarians make up a large part of the cover of the ocean floor as siliceous ooze. Due to their rapid change as species and intricate skeletons, radiolarians represent an important diagnostic fossil found from the Cambrian onwards. Description Radiolarians have many needle-like pseudopods supported by bundles of microtubules, which aid in the radiolarian's buoyancy. The cell nucleus and most other organelles are in the endoplasm, while the ectopl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
