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Brent Group
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 oil field, where it forms one of the reservoir units. It is subdivided into five formations, in order of age, the Broom, Rannoch, Etive, Ness Ness or NESS may refer to: Places Australia * Ness, Wapengo, a heritage-listed natural coastal area in New South Wales United Kingdom * Ness, Cheshire, England, a village * Ness, Lewis, the most northerly area on Lewis, Scotland, UK * Cuspat ... and Tarbet Formations whose first letters spell out the name of the group. References {{Reflist Geology of the North Sea ...
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Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The Jurassic constitutes the middle period of the Mesozoic, Mesozoic Era and is named after the Jura Mountains, where limestone strata from the period were first identified. The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic magmatic province, Central Atlantic Magmatic Province. The beginning of the Toarcian Stage started around 183 million years ago and is marked by an extinction event associated with widespread Anoxic event, oceanic anoxia, ocean acidification, and elevated temperatures likely caused by the eruption of the Karoo-Ferrar, Karoo-Ferrar large igneous provinces. The end of the Jurassic, however, has no clear boundary with the Cretaceous and i ...
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Drake Formation
Drake may refer to: Animals * A male duck People and fictional characters * Drake (surname), a list of people and fictional characters with the family name * Drake (given name), a list of people and fictional characters with the given name * Drake (musician) (born 1986), Canadian rapper, singer, and actor Aubrey Drake Graham Places United States * Drake, Arizona, an unincorporated community * Drake, Colorado, an unincorporated community * Drake, Illinois, an unincorporated community * Drake, Kentucky, an unincorporated community * Drake, Missouri, an unincorporated community * Drake, North Dakota, a town * Drake, North Carolina, a place in Nash County near Dr. Franklin Hart Farm * Drake, South Carolina, an unincorporated community * Drake Park, Bend, Oregon Antarctica * Drake Passage, between Cape Horn and Antarctica * Drake Head, Oates Land, a headland * Drake Icefall, Ellsworth Land Australia * Drake County, New South Wales, Australia * Drake, New South Wales, a par ...
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Northern North Sea Basin
The North Sea is part of the Atlantic Ocean in northern Europe. It is located between Norway and Denmark in the east, Scotland and England in the west, Germany, the Netherlands, Belgium and France in the south. The geology of the North Sea describes the geological features such as channels, trenches, and ridges today and the geological history, plate tectonics, geological events that created them. A geological basin is a large low-lying area or depression. It is often below sea level. Depressions are typically formed by tectonic processes acting on the lithosphere, providing "accommodation space" for sediment to be preserved. Basins are formed in a variety of tectonic settings: extensional, compressional, strike-slip and intraplate. Geological basins are one of the most common places which collect sediment. The type of rocks which form there tell about the palaeoclimate of the continent. The geology is of interest to oil prospectors, hydrologists and palaeontologists. Explorat ...
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Petroleum Reservoir
A petroleum reservoir or oil and gas reservoir is a subsurface accumulation of hydrocarbons contained in porous or fractured rock formations. Such reservoirs form when kerogen (ancient plant matter) is created in surrounding rock by the presence of high heat and pressure in the Earth's crust. Petroleum reservoirs are broadly classified as ''conventional'' and '' unconventional'' reservoirs. In conventional reservoirs, the naturally occurring hydrocarbons, such as crude oil or natural gas, are trapped by overlying rock formations with lower permeability, while in unconventional reservoirs, the rocks have high porosity and low permeability, which keeps the hydrocarbons trapped in place, therefore not requiring a cap rock. Reservoirs are found using hydrocarbon exploration methods. Oil field An oil field is an area of accumulation of liquid oil underground in multiple (potentially linked) reservoirs, trapped as it rises by impermeable rock formations. In industrial terms, ...
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Middle Jurassic
The Middle Jurassic is the second epoch of the Jurassic Period. It lasted from about 174.1 to 163.5 million years ago. Fossils of land-dwelling animals, such as dinosaurs, from the Middle Jurassic are relatively rare, but geological formations containing land animal fossils include the Forest Marble Formation in England, the Kilmaluag Formation in Scotland,British Geological Survey. 2011Stratigraphic framework for the Middle Jurassic strata of Great Britain and the adjoining continental shelf: research report RR/11/06 British Geological Survey, Keyworth, Nottingham. the Daohugou Beds in China, the Itat Formation in Russia, and the Isalo III Formation of western Madagascar. Paleogeography During the Middle Jurassic Epoch, Pangaea began to separate into Laurasia and Gondwana, and the Atlantic Ocean formed. Eastern Laurasia was tectonically active as the Cimmerian plate continued to collide with Laurasia's southern coast, completely closing the Paleo-Tethys Ocean. A subd ...
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Brent Oil Field
The Brent field was an oil and gas field located in the East Shetland Basin of the North Sea, north-east of Lerwick in the Shetland Islands, Scotland, at the water depth of . The field operated by Shell UK Limited was discovered in 1971 and was once one of the most productive parts of the UK's offshore assets but has reached the stage where production is no longer economically viable. Decommissioning of the Brent field is complete with the exception of Brent C, which is producing from another field. The discovery well 211/26-1 was drilled in 1971 by the semi-submersible drilling rig "Staflo". This was a major surprise at the time as the nearest land in Scotland and Norway is composed of granite and other non reservoir metamorphic rocks. Name Shell initially named all of its UK oil fields after seabirds in alphabetical order by discovery – Auk, Brent, Cormorant, Dunlin, Eider, Fulmar and so on. Brent refers to the brent goose, and in turn gave its initials to the geologic sub ...
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North Sea
The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian Sea in the north. It is more than long and wide, covering . It hosts key north European shipping lanes and is a major fishery. The coast is a popular destination for recreation and tourism in bordering countries, and a rich source of energy resources, including wind and wave power. The North Sea has featured prominently in geopolitical and military affairs, particularly in Northern Europe, from the Middle Ages to the modern era. It was also important globally through the power northern Europeans projected worldwide during much of the Middle Ages and into the modern era. The North Sea was the centre of the Vikings' rise. The Hanseatic League, the Dutch Republic, and the British each sought to gain command of the North Sea and access ...
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Viking Graben
Vikings ; non, víkingr is the modern name given to seafaring people originally from Scandinavia (present-day Denmark, Norway and Sweden), who from the late 8th to the late 11th centuries raided, pirated, traded and settled throughout parts of Europe.Roesdahl, pp. 9–22. They also voyaged as far as the Mediterranean Sea, Mediterranean, North Africa, Volga Bulgaria, the Middle East, and Greenland, North America. In some of the countries they raided and settled in, this period is popularly known as the Viking Age, and the term "Viking" also commonly includes the inhabitants of the Scandinavian homelands as a collective whole. The Vikings had a profound impact on the Early Middle Ages, early medieval history of Scandinavia, the History of the British Isles, British Isles, France in the Middle Ages, France, Viking Age in Estonia, Estonia, and Kievan Rus'. Expert sailors and navigators aboard their characteristic longships, Vikings established Norse settlem ...
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East Shetland Basin
The East Shetland Basin is a major oil-producing area of the North Sea between Scotland and Norway. Oil produced in the UK area is landed at Sullom Voe Terminal in the Shetland Islands. Associated gas flows via the FLAGS pipeline to St Fergus Gas Terminal. The UK East Shetland Basin includes the following oil and gas fields and accumulations: * Alwyn North * Barra * Brent * Broom * Causeway * Cheviot * Cladhan * Conrie * Cormorant * Deveron * Don * Dunbar * Eider * Ellon * Falcon * Fionn * Grant * Harris * Heather * Hudson * Hutton * Islay * Jura * Kestrel * KrakenLyell * Magnus * Merlin * Murchison * Ninian * Nuggets * Orlando * Otter * Pelican * Penguin * Playfair * Rhum * Strathspey * Tern * Thistle * Ythan See also *Energy policy of the United Kingdom The energy policy of the United Kingdom refers to the United Kingdom's efforts towards reducing energy intensity, reducing energy poverty, and maintaining energy supply reliability. The United Kingdom has ha ...
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Heather Formation
The Heather Formation is a geological formation occurs in the North Sea, offshore the United Kingdom and Norway. It preserves fossils from the Bathonian to Oxfordian stages of the Middle to Late Jurassic period and was deposited in an open marine depositional environment. See also * List of fossiliferous stratigraphic units in Norway See also * Lists of fossiliferous stratigraphic units in Europe ** List of fossiliferous stratigraphic units in Denmark ** List of fossiliferous stratigraphic units in Scotland ** List of fossiliferous stratigraphic units in Svalbard * ... References * Jurassic Norway {{Jurassic-stub ...
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Aalenian
The Aalenian () is a subdivision of the Middle Jurassic Epoch/ Series of the geologic timescale that extends from about 174.1 Ma to about 170.3 Ma (million years ago). It was preceded by the Toarcian and succeeded by the Bajocian. Stratigraphic definitions The Aalenian takes its name from the town of Aalen, some 70 km east of Stuttgart in Germany. The town lies at the northeastern end of the Swabian Jura. The name Aalenian was introduced in scientific literature by Swiss geologist Karl Mayer-Eymar in 1864. The base of the Aalenian is defined as the place in the stratigraphic column where the ammonite genus '' Leioceras'' first appears. The global reference profile (GSSP) is located 500 meters north of the village of Fuentelsaz in the Spanish province of Guadalajara.Cresta ''et al.'' (2001) The top of the Aalenian (the base of the Bajocian) is at the first appearance of ammonite genus '' Hyperlioceras''. In the Tethys domain, the Aalenian contains four ammonite biozo ...
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Tarbet Formation
Tarbet (Scottish Gaelic: ''An Tairbeart'') may refer the following places in Scotland: * Tarbet, Argyll, a village on the side of Loch Lomond * Tarbet, Loch Nevis, a hamlet in Lochaber, near Mallaig * Tarbet, Sutherland, a hamlet on the north-west coast, near the island of Handa * Castle Tarbet, on the island of Fidra in the Firth of Forth * Tarbet Isle, in Loch Lomond See also * Tarbert (other) * Tarbat, a civil parish in the east of Ross and Cromarty, Scotland * Tarbert Tarbert ( gd, An Tairbeart) is a place name in Scotland and Ireland. Places named Tarbert are characterised by a narrow strip of land, or isthmus. This can be where two lochs nearly meet, or a causeway out to an island. Etymology All placenames ...
, a place name in Scotland and Ireland {{disambiguation, geo ...
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