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Bjorøy Tunnel
The Bjorøy Tunnel ( no, Bjorøytunnelen) is a subsea road tunnel in Vestland county, Norway. The tunnel is part of the Norwegian County Road 5236 which connects the island of Bjorøy in the municipality of Øygarden to the mainland near Håkonshella and Hilleren in the city-municipality of Bergen. It crosses underneath the Vatlestraumen strait, reaching below mean sea level. It serves as a fixed link for the 900 residents of the islands of Bjorøy and Tyssøy as well as a large number of cottage owners who vacation on the islands. The first proposal was launched in 1980, and construction started on 29 September 1993. There were severe problems because the tunneling encountered an area of sandstone, causing a year's delay. The total construction cost was . It opened on 7 May 1996 and remained a toll road until 29 January 2005. Specifications The Bjorøy Tunnel is a subsea tunnel which runs below the Vatlestraumen strait between the island of Bjorøy and the mainland ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Øygarden
Øygarden is a Municipalities of Norway, municipality in Vestland Counties of Norway, county, Norway. It is an island municipality located in the Districts of Norway, traditional district of Midhordland, stretching along the west coast of the county. The village of Straume, Øygarden, Straume is the administrative centre of the municipality. Other villages in the municipality include Alveim, Blomvåg, Vikavågen, Ågotnes, Fjell (village), Fjell, Foldnes, Knappskog, Knarrevik, Kolltveit, Landro, Hordaland, Landro, Sekkingstad, Skogsvåg, Klokkarvik, Tælavåg, Kausland, and Hammarsland. The municipality consists of a chain of islands to the north and west of the city of Bergen. Øygarden is connected to the mainland by a series of bridges and a single road running across the islands. Some of the major islands include Litlesotra, Store Sotra, Bildøy, Bjorøy, Misje, Turøy, Seløyna, Alvøyna, Ona, Hordaland, Ona, Blomøyna, Rongøyna, and Toftøyna. The municipality is the 260t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norwegian Public Safety Radio
The Norwegian Public Safety Network ( no, Nødnett literally ''Emergency Network'') is a public safety network system based on Terrestrial Trunked Radio (TETRA). Nødnett is implemented by the Directorate for Emergency Communication ( no, Direktoratet for nødkommunikasjon). The network is primarily used for internal and interdisciplinary communication by the police, fire departments and health services. Nødnett is also used by several organisations participating in rescue and emergency work. Planning of the network started in 1995 and in 2006 the contract to build it was awarded to Nokia Siemens Networks. As Nokia Siemens Networks was unable to complete the contract, it was passed on to Motorola Solutions in 2012. The critical infrastructure of Nødnett was finished and was operational in all districts of mainland Norway by December 1, 2015. The network replaced nearly 300 local and regional networks which operated independently for the fire, police and healthcare agencies. N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vardø Tunnel
The Vardø Tunnel ( no, Vardøtunnelen) is a subsea road tunnel in Vardø Municipality in Troms og Finnmark county, Norway. The long two-lane tunnel under the Bussesundet strait connects the island of Vardøya to the village of Svartnes on the Varanger Peninsula on the mainland. The tunnel is part of the European Route E75 highway and it reaches a depth of below sea level. The tunnel opened in 1982 and was the first subsea tunnel in Norway. King Olav V Olav V (; born Prince Alexander of Denmark; 2 July 1903 – 17 January 1991) was the King of Norway from 1957 until his death in 1991. Olav was the only child of King Haakon VII of Norway and Maud of Wales. He became heir apparent to the Nor ... officially opened the tunnel on 16 August 1983. References External links * {{DEFAULTSORT:Vardo Tunnel Road tunnels in Troms og Finnmark Subsea tunnels in Norway Vardø 1982 establishments in Norway Tunnels completed in 1982 Roads within the Arctic Circle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bjorøy Tunnel Map 2
Bjorøyna or Bjorøy is an island in Øygarden Municipality in Vestland county, Norway. The island is located south of the island of Litlesotra, west of the Bergen Peninsula, north of the island of Tyssøyna, and east of the island of Sotra. Bjorøy is connected to the mainland city of Bergen by a subsea road tunnel called the Bjorøy Tunnel. It is also connected to the small island of Tyssøy in neighboring Sund municipality by a bridge. Bjorøy has 878 inhabitants (September 2012), and several hundred vacation cabins. History Due to its favourable location, proximity to Bergen, and the construction of the tunnel, the island has in recent years been seeing strong population growth. To prevent uncontrolled development, a building ban was instituted in 2007 but was later removed. The ban was instituted after a non-legally binding cap that only allowed ten new houses to be built on the island per year. The purpose was to ensure that the population growth did not surpass the gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strike And Dip
Strike and dip is a measurement convention used to describe the orientation, or attitude, of a planar geologic feature. A feature's strike is the azimuth of an imagined horizontal line across the plane, and its dip is the angle of inclination measured downward from horizontal. They are used together to measure and document a structure's characteristics for study or for use on a geologic map. A feature's orientation can also be represented by dip and dip direction, using the azimuth of the dip rather than the strike value. Linear features are similarly measured with trend and plunge, where "trend" is analogous to dip direction and "plunge" is the dip angle. Strike and dip are measured using a compass and a clinometer. A compass is used to measure the feature's strike by holding the compass horizontally against the feature. A clinometer measures the features dip by recording the inclination perpendicular to the strike. These can be done separately, or together using a tool such a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bedding (geology)
In geology, a bed is a layer of sediment, sedimentary rock, or pyroclastic material "bounded above and below by more or less well-defined bedding surfaces".Neuendorf, K.K.E., J.P. Mehl, Jr., and J.A. Jackson, eds., 2005. ''Glossary of Geology'' (5th ed.). Alexandria, Virginia; American Geological Institute. p 61. Specifically in sedimentology, a bed can be defined in one of two major ways.Davies, N.S., and Shillito, A.P. 2021, ''True substrates: the exceptional resolution and unexceptional preservation of deep time snapshots on bedding surfaces.'' ''Sedimentology.'' published online 22 May 2021, doi: 10.1111/sed.12900. First, Campbell and Reineck and SinghReineck, H.E., and Singh, I.B., 1980. ''Depositional Sedimentary Environments'', (2nd ed.) Berlin, Germany: Springer-Verlag, 504 pp. use the term ''bed'' to refer to a thickness-independent layer comprising a coherent layer of sedimentary rock, sediment, or pyroclastic material bounded above and below by surfaces known as beddi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault (geology)
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxfordian (stage)
The Oxfordian is, in the ICS' geologic timescale, the earliest age of the Late Jurassic Epoch, or the lowest stage of the Upper Jurassic Series. It spans the time between 163.5 ± 1.0 Ma and 157.3 ± 1.0 Ma (million years ago). The Oxfordian is preceded by the Callovian and is followed by the Kimmeridgian. Stratigraphic definitions The Oxfordian Stage was called "Clunch Clay and Shale" by William Smith (1815–1816); in 1818 W. Buckland described them under the unwieldy title "Oxford, Forest or Fen Clay". The term Oxfordian was introduced by Alcide d'Orbigny in 1844. The name is derived from the English city of Oxford, where the beds are well developed, but they crop out almost continuously from Dorset to the coast of Yorkshire, generally forming low, broad valleys. They are well exposed at Weymouth, Oxford, Bedford, Peterborough, and in the cliffs at Scarborough, Red Cliff and Gristhorpe Bay. Rocks of this age are found also in Uig and Skye. The base of the Oxfordian Stage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gneiss
Gneiss ( ) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. Gneiss forms at higher temperatures and pressures than schist. Gneiss nearly always shows a banded texture characterized by alternating darker and lighter colored bands and without a distinct cleavage. Gneisses are common in the ancient crust of continental shields. Some of the oldest rocks on Earth are gneisses, such as the Acasta Gneiss. Description Orthogneiss from the Czech Republic In traditional English and North American usage, a gneiss is a coarse-grained metamorphic rock showing compositional banding (gneissic banding) but poorly developed schistosity and indistinct cleavage. In other words, it is a metamorphic rock composed of mineral grains easily seen with the unaided eye, which form obvious compositional layers, but which has only a weak tendency to fracture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conglomerate (geology)
Conglomerate () is a clastic sedimentary rock that is composed of a substantial fraction of rounded to subangular gravel-size clasts. A conglomerate typically contains a matrix of finer-grained sediments, such as sand, silt, or clay, which fills the interstices between the clasts. The clasts and matrix are typically cemented by calcium carbonate, iron oxide, silica, or hardened clay. Conglomerates form by the consolidation and lithification of gravel. They can be found in sedimentary rock sequences of all ages but probably make up less than 1 percent by weight of all sedimentary rocks. In terms of origin and depositional mechanisms, they are closely related to sandstones and exhibit many of the same types of sedimentary structures, e.g., tabular and trough cross-bedding and graded bedding.Boggs, S. (2006) ''Principles of Sedimentology and Stratigraphy.'', 2nd ed. Prentice Hall, New York. 662 pp. Friedman, G.M. (2003) ''Classification of sediments and sedimentary rocks.'' In G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breccia
Breccia () is a rock composed of large angular broken fragments of minerals or rocks cemented together by a fine-grained matrix. The word has its origins in the Italian language, in which it means "rubble". A breccia may have a variety of different origins, as indicated by the named types including sedimentary breccia, tectonic breccia, igneous breccia, impact breccia, and hydrothermal breccia. A megabreccia is a breccia composed of very large rock fragments, sometimes kilometers across, which can be formed by landslides, impact events, or caldera collapse. Types Breccia is composed of coarse rock fragments held together by cement or a fine-grained matrix. Like conglomerate, breccia contains at least 30 percent of gravel-sized particles (particles over 2mm in size), but it is distinguished from conglomerate because the rock fragments have sharp edges that have not been worn down. These indicate that the gravel was deposited very close to its source area, since otherwise th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
