Eide is a former municipality in Møre og Romsdal county , Norway . It was part of the region of Nordmøre . It was located on the Romsdal peninsula , along the Kornstadfjorden and the Kvernesfjorden . The administrative centre of the municipality was the village of Eide . Other villages included Lyngstad , Vevang , and Visnes .
94-542: The municipality was known for its traditional and modern limestone (marble) quarries and related crafts industry. The Atlanterhavsveien coastal road connected Eide Municipality to neighboring Averøy Municipality to the east. The municipal border lies at the Storseisundet Bridge on the Atlanterhavsveien road. At the time if its dissolution in 2020, the 152-square-kilometre (59 sq mi) municipality
188-472: A Group Representation Constituency (GRC), a Single Member Constituency (SMC), or a collection of neighbouring GRCs and SMCs controlled by the same political party. The Members of Parliament head the town councils of their constituencies. Town councils boundaries do not correspond to new town boundaries; different parts of the same HDB town may be managed by different town councils. In the Republic of China ,
282-455: A Mohs hardness of 2 to 4, dense limestone can have a crushing strength of up to 180 MPa . For comparison, concrete typically has a crushing strength of about 40 MPa. Although limestones show little variability in mineral composition, they show great diversity in texture. However, most limestone consists of sand-sized grains in a carbonate mud matrix. Because limestones are often of biological origin and are usually composed of sediment that
376-457: A bloom of cyanobacteria or microalgae . However, stable isotope ratios in modern carbonate mud appear to be inconsistent with either of these mechanisms, and abrasion of carbonate grains in high-energy environments has been put forward as a third possibility. Formation of limestone has likely been dominated by biological processes throughout the Phanerozoic , the last 540 million years of
470-429: A municipal council of directly elected representatives. The mayor was indirectly elected by a vote of the municipal council. The municipal council ( Kommunestyre ) of Eide was made up of 21 representatives that were elected to four year terms. The party breakdown for the final municipal council was as follows: The mayors of Eide: Limestone Limestone ( calcium carbonate CaCO 3 )
564-675: A Chief Executive Officer or Secretary of the Municipality who is responsible for the day-to-day administration. In cities Municipal Corporation acts as the governing body. Municipal councils are parliamentary bodies established in local authorities in accordance with Article 93 of the Constitution of Japan and Article 89 of the Local Autonomy Act , etc. The Yokohama and Osaka City Councils are examples. The Municipal Council in Moldova
658-651: A City by the Local Government etc. (Scotland) Act 1994 such as Glasgow City Council . The three cities which are not council areas have no city council. In Wales , where the lowest tier of local government is known as a community , the Community Council may unilaterally declare itself to be a Town Council, but this has the same status as a Community Council. A city council may be: City councils and town boards generally consist of several (usually somewhere between 5 and 51) elected aldermen or councillors . In
752-434: A carbonate rock outcrop can be estimated in the field by etching the surface with dilute hydrochloric acid. This etches away the calcite and aragonite, leaving behind any silica or dolomite grains. The latter can be identified by their rhombohedral shape. Crystals of calcite, quartz , dolomite or barite may line small cavities ( vugs ) in the rock. Vugs are a form of secondary porosity, formed in existing limestone by
846-612: A central quartz grain or carbonate mineral fragment. These likely form by direct precipitation of calcium carbonate onto the ooid. Pisoliths are similar to ooids, but they are larger than 2 mm in diameter and tend to be more irregular in shape. Limestone composed mostly of ooids is called an oolite or sometimes an oolitic limestone . Ooids form in high-energy environments, such as the Bahama platform, and oolites typically show crossbedding and other features associated with deposition in strong currents. Oncoliths resemble ooids but show
940-449: A change in environment that increases the solubility of calcite. Dense, massive limestone is sometimes described as "marble". For example, the famous Portoro "marble" of Italy is actually a dense black limestone. True marble is produced by recrystallization of limestone during regional metamorphism that accompanies the mountain building process ( orogeny ). It is distinguished from dense limestone by its coarse crystalline texture and
1034-949: A composition reflecting the organisms that produced them and the environment in which they were produced. Low-magnesium calcite skeletal grains are typical of articulate brachiopods , planktonic (free-floating) foraminifera, and coccoliths . High-magnesium calcite skeletal grains are typical of benthic (bottom-dwelling) foraminifera, echinoderms , and coralline algae . Aragonite skeletal grains are typical of molluscs , calcareous green algae , stromatoporoids , corals , and tube worms . The skeletal grains also reflect specific geological periods and environments. For example, coral grains are more common in high-energy environments (characterized by strong currents and turbulence) while bryozoan grains are more common in low-energy environments (characterized by quiet water). Ooids (sometimes called ooliths) are sand-sized grains (less than 2mm in diameter) consisting of one or more layers of calcite or aragonite around
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#17328756870331128-412: A considerable fraction of the limestone bed. At depths greater than 1 km (0.62 miles), burial cementation completes the lithification process. Burial cementation does not produce stylolites. When overlying beds are eroded, bringing limestone closer to the surface, the final stage of diagenesis takes place. This produces secondary porosity as some of the cement is dissolved by rainwater infiltrating
1222-483: A drop of dilute hydrochloric acid is dropped on it. Dolomite is also soft but reacts only feebly with dilute hydrochloric acid, and it usually weathers to a characteristic dull yellow-brown color due to the presence of ferrous iron. This is released and oxidized as the dolomite weathers. Impurities (such as clay , sand, organic remains, iron oxide , and other materials) will cause limestones to exhibit different colors, especially with weathered surfaces. The makeup of
1316-621: A few million years, as this is the most stable form of calcium carbonate. Ancient carbonate formations of the Precambrian and Paleozoic contain abundant dolomite, but limestone dominates the carbonate beds of the Mesozoic and Cenozoic . Modern dolomite is quite rare. There is evidence that, while the modern ocean favors precipitation of aragonite, the oceans of the Paleozoic and middle to late Cenozoic favored precipitation of calcite. This may indicate
1410-455: A few thousand years. As rainwater mixes with groundwater, aragonite and high-magnesium calcite are converted to low-calcium calcite. Cementing of thick carbonate deposits by rainwater may commence even before the retreat of the sea, as rainwater can infiltrate over 100 km (60 miles) into sediments beneath the continental shelf. As carbonate sediments are increasingly deeply buried under younger sediments, chemical and mechanical compaction of
1504-490: A high percentage of the mineral dolomite , CaMg(CO 3 ) 2 . Magnesian limestone is an obsolete and poorly-defined term used variously for dolomite, for limestone containing significant dolomite ( dolomitic limestone ), or for any other limestone containing a significant percentage of magnesium . Most limestone was formed in shallow marine environments, such as continental shelves or platforms , though smaller amounts were formed in many other environments. Much dolomite
1598-435: A limestone sample except in thin section and are less common in ancient limestones, possibly because compaction of carbonate sediments disrupts them. Limeclasts are fragments of existing limestone or partially lithified carbonate sediments. Intraclasts are limeclasts that originate close to where they are deposited in limestone, while extraclasts come from outside the depositional area. Intraclasts include grapestone , which
1692-466: A lower Mg/Ca ratio in the ocean water of those times. This magnesium depletion may be a consequence of more rapid sea floor spreading , which removes magnesium from ocean water. The modern ocean and the ocean of the Mesozoic have been described as "aragonite seas". Most limestone was formed in shallow marine environments, such as continental shelves or platforms . Such environments form only about 5% of
1786-525: A lower diversity of organisms and a greater fraction of silica and clay minerals characteristic of marls . The Green River Formation is an example of a prominent freshwater sedimentary formation containing numerous limestone beds. Freshwater limestone is typically micritic. Fossils of charophyte (stonewort), a form of freshwater green algae, are characteristic of these environments, where the charophytes produce and trap carbonates. Limestones may also form in evaporite depositional environments . Calcite
1880-523: A mechanism for dolomitization, with one 2004 review paper describing it bluntly as "a myth". Ordinary seawater is capable of converting calcite to dolomite, if the seawater is regularly flushed through the rock, as by the ebb and flow of tides (tidal pumping). Once dolomitization begins, it proceeds rapidly, so that there is very little carbonate rock containing mixed calcite and dolomite. Carbonate rock tends to be either almost all calcite/aragonite or almost all dolomite. About 20% to 25% of sedimentary rock
1974-555: A multitude of much smaller city councils. Also, some significant urban areas can be under the jurisdiction of otherwise rural local governments. Periodic re-alignments of boundaries attempt to rationalize these situations and adjust the deployment of assets and resources. There are currently seven town councils in Belize . Each town council consists of a mayor and a number of councillors, who are directly elected in municipal elections every three years. Town councils in Belize are responsible for
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#17328756870332068-623: A municipal council represents a special municipality or a provincial city . Members of the councils are elected through municipal elections held every four–five years. Councils for the special municipalities in Taiwan are Taipei City Council , New Taipei City Council , Taichung City Council , Tainan City Council , Kaohsiung City Council and Taoyuan City Council . Councils for the provincial cities in Taiwan are Chiayi City Council , Hsinchu City Council , and Keelung City Council . In Ukraine , almost all cities have their City Councils, and
2162-448: A plausible source of mud. Another possibility is direct precipitation from the water. A phenomenon known as whitings occurs in shallow waters, in which white streaks containing dispersed micrite appear on the surface of the water. It is uncertain whether this is freshly precipitated aragonite or simply material stirred up from the bottom, but there is some evidence that whitings are caused by biological precipitation of aragonite as part of
2256-449: A radial rather than layered internal structure, indicating that they were formed by algae in a normal marine environment. Peloids are structureless grains of microcrystalline carbonate likely produced by a variety of processes. Many are thought to be fecal pellets produced by marine organisms. Others may be produced by endolithic (boring) algae or other microorganisms or through breakdown of mollusc shells. They are difficult to see in
2350-495: A range of functions, including street maintenance and lighting, drainage, refuse collection, public cemeteries, infrastructure, parks and playgrounds. Township councils in Ontario play a similar role as city councils in cities for smaller or low tier municipalities. Directly elected every four years, the number of councillors vary depending on the size of their municipalities. The councillors' powers and responsibilities are governed by
2444-470: A similar but separate form of legislature called " Sangguniang Panlungsod " (literally "city council"). The Local Government Code of 1991 established the current local government structure, including municipal councils. City councils range from 12, in most cities, to 38 members, such as the Manila City Council . Members of city councils are called "councilors". The Local Government Act 2001 restyled
2538-650: A town council. If another type of local council, such as a district authority, covers a single town (such as Luton or Stevenage ) then the council is often a 'borough council': borough status is however conferred at the discretion of the Crown . There is also the London assembly which is City council by default Civil parishes are the most local level in the local government system. The higher levels are district , unitary and county . However town councils are not subordinate in democratic accountability to those higher levels, but to
2632-416: Is a type of carbonate sedimentary rock which is the main source of the material lime . It is composed mostly of the minerals calcite and aragonite , which are different crystal forms of CaCO 3 . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as
2726-560: Is also favored on the seaward margin of shelves and platforms, where there is upwelling deep ocean water rich in nutrients that increase organic productivity. Reefs are common here, but when lacking, ooid shoals are found instead. Finer sediments are deposited close to shore. The lack of deep sea limestones is due in part to rapid subduction of oceanic crust, but is more a result of dissolution of calcium carbonate at depth. The solubility of calcium carbonate increases with pressure and even more with higher concentrations of carbon dioxide, which
2820-482: Is an uncommon mineral in limestone, and siderite or other carbonate minerals are rare. However, the calcite in limestone often contains a few percent of magnesium . Calcite in limestone is divided into low-magnesium and high-magnesium calcite, with the dividing line placed at a composition of 4% magnesium. High-magnesium calcite retains the calcite mineral structure, which is distinct from dolomite. Aragonite does not usually contain significant magnesium. Most limestone
2914-402: Is carbonate rock, and most of this is limestone. Limestone is found in sedimentary sequences as old as 2.7 billion years. However, the compositions of carbonate rocks show an uneven distribution in time in the geologic record. About 95% of modern carbonates are composed of high-magnesium calcite and aragonite. The aragonite needles in carbonate mud are converted to low-magnesium calcite within
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3008-474: Is clusters of peloids cemented together by organic material or mineral cement. Extraclasts are uncommon, are usually accompanied by other clastic sediments, and indicate deposition in a tectonically active area or as part of a turbidity current . The grains of most limestones are embedded in a matrix of carbonate mud. This is typically the largest fraction of an ancient carbonate rock. Mud consisting of individual crystals less than 5 μm (0.20 mils) in length
3102-416: Is commonly white to gray in color. Limestone that is unusually rich in organic matter can be almost black in color, while traces of iron or manganese can give limestone an off-white to yellow to red color. The density of limestone depends on its porosity, which varies from 0.1% for the densest limestone to 40% for chalk. The density correspondingly ranges from 1.5 to 2.7 g/cm . Although relatively soft, with
3196-420: Is controlled largely by the amount of dissolved carbon dioxide ( CO 2 ) in the water. This is summarized in the reaction: Increases in temperature or decreases in pressure tend to reduce the amount of dissolved CO 2 and precipitate CaCO 3 . Reduction in salinity also reduces the solubility of CaCO 3 , by several orders of magnitude for fresh water versus seawater. Near-surface water of
3290-545: Is converted to low-magnesium calcite. Diagenesis is the likely origin of pisoliths , concentrically layered particles ranging from 1 to 10 mm (0.039 to 0.394 inches) in diameter found in some limestones. Pisoliths superficially resemble ooids but have no nucleus of foreign matter, fit together tightly, and show other signs that they formed after the original deposition of the sediments. Silicification occurs early in diagenesis, at low pH and temperature, and contributes to fossil preservation. Silicification takes place through
3384-503: Is deposited close to where it formed, classification of limestone is usually based on its grain type and mud content. Most grains in limestone are skeletal fragments of marine organisms such as coral or foraminifera . These organisms secrete structures made of aragonite or calcite, and leave these structures behind when they die. Other carbonate grains composing limestones are ooids , peloids , and limeclasts ( intraclasts and extraclasts [ ca ] ). Skeletal grains have
3478-460: Is described as coquinite . Chalk is a soft, earthy, fine-textured limestone composed of the tests of planktonic microorganisms such as foraminifera, while marl is an earthy mixture of carbonates and silicate sediments. Limestone forms when calcite or aragonite precipitate out of water containing dissolved calcium, which can take place through both biological and nonbiological processes. The solubility of calcium carbonate ( CaCO 3 )
3572-617: Is described as micrite . In fresh carbonate mud, micrite is mostly small aragonite needles, which may precipitate directly from seawater, be secreted by algae, or be produced by abrasion of carbonate grains in a high-energy environment. This is converted to calcite within a few million years of deposition. Further recrystallization of micrite produces microspar , with grains from 5 to 15 μm (0.20 to 0.59 mils) in diameter. Limestone often contains larger crystals of calcite, ranging in size from 0.02 to 0.1 mm (0.79 to 3.94 mils), that are described as sparry calcite or sparite . Sparite
3666-462: Is distinguished from micrite by a grain size of over 20 μm (0.79 mils) and because sparite stands out under a hand lens or in thin section as white or transparent crystals. Sparite is distinguished from carbonate grains by its lack of internal structure and its characteristic crystal shapes. Geologists are careful to distinguish between sparite deposited as cement and sparite formed by recrystallization of micrite or carbonate grains. Sparite cement
3760-462: Is generally only those local government areas which have been specifically granted city status (usually on a basis of population) that are entitled to refer to themselves as cities. The official title is "Corporation of the City of ______" or similar. Some of the urban areas of Australia are governed mostly by a single entity (e.g. Brisbane and other Queensland cities), while others may be controlled by
3854-408: Is led by a mayor ( ordfører ) and is divided into an executive council ( formannskap ) and a number of committees, each responsible for a subsection of tasks. It is not uncommon for some members of the council to sit in the county councils too, but very rare that they also hold legislative ( Storting ) or Government office, without leave of absence . The municipal council dates back to 1837 with
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3948-560: Is one of the first minerals to precipitate in marine evaporites. Most limestone is formed by the activities of living organisms near reefs, but the organisms responsible for reef formation have changed over geologic time. For example, stromatolites are mound-shaped structures in ancient limestones, interpreted as colonies of cyanobacteria that accumulated carbonate sediments, but stromatolites are rare in younger limestones. Organisms precipitate limestone both directly as part of their skeletons, and indirectly by removing carbon dioxide from
4042-473: Is otherwise chemically fairly pure, with clastic sediments (mainly fine-grained quartz and clay minerals ) making up less than 5% to 10% of the composition. Organic matter typically makes up around 0.2% of a limestone and rarely exceeds 1%. Limestone often contains variable amounts of silica in the form of chert or siliceous skeletal fragments (such as sponge spicules, diatoms , or radiolarians ). Fossils are also common in limestone. Limestone
4136-472: Is produced by decaying organic matter settling into the deep ocean that is not removed by photosynthesis in the dark depths. As a result, there is a fairly sharp transition from water saturated with calcium carbonate to water unsaturated with calcium carbonate, the lysocline , which occurs at the calcite compensation depth of 4,000 to 7,000 m (13,000 to 23,000 feet). Below this depth, foraminifera tests and other skeletal particles rapidly dissolve, and
4230-514: Is secondary dolomite, formed by chemical alteration of limestone. Limestone is exposed over large regions of the Earth's surface, and because limestone is slightly soluble in rainwater, these exposures often are eroded to become karst landscapes. Most cave systems are found in limestone bedrock. Limestone has numerous uses: as a chemical feedstock for the production of lime used for cement (an essential component of concrete ), as aggregate for
4324-413: Is the legislative body of a municipality or local government area . Depending on the location and classification of the municipality it may be known as a city council , town council , town board , community council , rural council , village council , or board of aldermen . Because of the differences in legislation between the states , the exact definition of a city council varies. However, it
4418-459: Is the 353rd largest by area out of the 422 municipalities in Norway. Eide is the 248th most populous municipality in Norway with a population of 3,440. The municipality's population density is 23.6 inhabitants per square kilometre (61/sq mi) and its population has increased by 2.3% over the last decade. The municipality of Eide was established on 1 January 1897 when the large Kvernes Municipality
4512-555: Is the governing body in five municipalities: Chișinău , Bălți , Tiraspol and Bendery (also known as Tighina or Bender ). The Municipal Council ( Moldovan language : Consiliul municipal ) serves as a consultative body with some powers of general policy determination. It is composed of a legally determined number of counsellors (for example 35 in Bălți) elected every four years, representing political parties and independent counsellors. Once elected, counsellors may form fractions inside of
4606-526: The Municipal Act of Ontario. Manitoba town council members serve primarily as a policy and direction board for the community. They consist of five to seven members with the head of council being the mayor or reeve . Municipal councils exist in the People's Republic of China , these are designated as Municipal People's Congress in many sub-provincial cities and direct-administered municipalities such as
4700-484: The Local Government Commission in 1989 when approximately 700 councils and special purpose bodies were amalgamated to create 87 new local authorities. As a result, the term "city" began to take on two meanings. The word "city" came to be used in a less formal sense to describe major urban areas independent of local body boundaries. Gisborne , for example, adamantly described itself as the first city in
4794-548: The Shanghai Municipal People's Congress . In spite of enormous differences in populations, each of the communes of the French Republic possesses a mayor ( French : maire ) and a municipal council ( French : conseil municipal ), which manage the commune from the mairie ( city hall ), with exactly the same powers no matter the size of the commune and council. The one exception is the city of Paris, where
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#17328756870334888-520: The constituencies and district boards . Both of the Municipal Councils in Hong Kong are now defunct. In India,a Municipal council is the legislative and decision making body of a municipality. A municipality is the local government for a smaller urban area, known as municipal area. The entire district under the Municipality is divided into smaller legislative units known as a ward. The people of
4982-481: The dative case of the word eið which means " isthmus ". This name is not referring to a true isthmus, but rather referring to a small valley area between two large hills and between the fjord and a large lake where the main village of Eide is located. The coat of arms was granted on 9 July 1982. The official blazon is " Azure , three swans argent naiant wings displayed, 2 over 1" ( Norwegian : I blått tre svømmende sølv svaner, to over en ). This means
5076-619: The Board. The Board was reconstituted in 1935 and hence renamed as Urban Council in the following year after the government had passed the Urban Council Ordinance. Democratisation had been implemented, allowing universal suffrage to happen throughout its development. Two years after the Transfer of sovereignty over Hong Kong , the council was disbanded in 1999 by the then Chief Executive of Hong Kong Special Administrative Region . All members of
5170-496: The Earth's history. Limestone may have been deposited by microorganisms in the Precambrian , prior to 540 million years ago, but inorganic processes were probably more important and likely took place in an ocean more highly oversaturated in calcium carbonate than the modern ocean. Diagenesis is the process in which sediments are compacted and turned into solid rock . During diagenesis of carbonate sediments, significant chemical and textural changes take place. For example, aragonite
5264-814: The Municipal Council. Last regional elections of local public administration held in Bălți in June 2007, brought to the power the Party of Communists of the Republic of Moldova (PCRM), which holds 21 mandates, 11 mandates are held by representatives of other parties, and 3 mandates by independents. There are two fractions in the Municipal Council: PCRM fraction (21 counsellors) and "Meleag" fraction (3 independent counsellors and 4 representatives of different parties). The Mayor of
5358-430: The accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite , a closely related rock, which contains
5452-420: The arms have a blue field (background) and the charge is three whooper swans (Cygnus cygnus) . The swans have a tincture of argent which means they are commonly colored white, but if the arms are made out of metal, then silver is used. The swans are facing dexter in a swimming position . The swans were chosen since they are very common in the many local lakes. Each swan has seven feathers, representing
5546-434: The base of roads, as white pigment or filler in products such as toothpaste or paint, as a soil conditioner , and as a popular decorative addition to rock gardens . Limestone formations contain about 30% of the world's petroleum reservoirs . Limestone is composed mostly of the minerals calcite and aragonite , which are different crystal forms of calcium carbonate ( CaCO 3 ). Dolomite , CaMg(CO 3 ) 2 ,
5640-657: The beds. This may include the formation of vugs , which are crystal-lined cavities within the limestone. Diagenesis may include conversion of limestone to dolomite by magnesium-rich fluids. There is considerable evidence of replacement of limestone by dolomite, including sharp replacement boundaries that cut across bedding. The process of dolomitization remains an area of active research, but possible mechanisms include exposure to concentrated brines in hot environments ( evaporative reflux ) or exposure to diluted seawater in delta or estuary environments ( Dorag dolomitization ). However, Dorag dolomitization has fallen into disfavor as
5734-488: The bottom with the concave face downwards. This traps a void space that can later be filled by sparite. Geologists use geopetal structures to determine which direction was up at the time of deposition, which is not always obvious with highly deformed limestone formations. The cyanobacterium Hyella balani can bore through limestone; as can the green alga Eugamantia sacculata and the fungus Ostracolaba implexa . Municipal council (Norway) A municipal council
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#17328756870335828-487: The city police is in the hands of the central state , not in the hands of the mayor of Paris. This uniformity of status is a clear legacy of the French Revolution, which wanted to do away with the local idiosyncrasies and tremendous differences of status that existed in the kingdom of France. The size of a commune still matters, however, in two domains: French law determines the size of the municipal council according to
5922-720: The common areas of Housing and Development Board (HDB) flats and estates, such as the common corridors, void decks , lifts, water tanks, external lighting and the open spaces surrounding the estates. They are regulated under the Town Councils Act ;( Cap. 329A, 2000 Rev. Ed. ). The rationale was to delegate the duties of estate management to the members of parliament in addition to their existing responsibilities. They would also gain management experience and be accountable to their district's resident voters. Town councils boundaries are drawn based on electoral districts boundaries. A town council area can consist of
6016-599: The council were elected through universal suffrage by the time of the dissolution. The counterpart of the Municipal Council serving the New Territories (excluding New Kowloon ) was the Regional Council established as the Provisional Regional Council in 1986. The functional select committees, district committees, and sub-committees constituted the entire Regional Council. All members were elected from
6110-605: The creation of the Formannskabsdistrikt . In cities, the council is often called a city council ( bystyre ). The Palestinian National Authority established village councils to serve as local administrations and service providers for Palestinian villages and small towns. Village councils are also referred to as D-level municipalities. In the Philippines , all municipalities have their own municipal council, and these are officially called: " Sangguniang Bayan ". Cities have
6204-462: The depositional fabric of carbonate rocks. Dunham divides the rocks into four main groups based on relative proportions of coarser clastic particles, based on criteria such as whether the grains were originally in mutual contact, and therefore self-supporting, or whether the rock is characterized by the presence of frame builders and algal mats. Unlike the Folk scheme, Dunham deals with the original porosity of
6298-469: The deposits are highly porous, so that they have a spongelike texture, they are typically described as tufa . Secondary calcite deposited by supersaturated meteoric waters ( groundwater ) in caves is also sometimes described as travertine. This produces speleothems , such as stalagmites and stalactites . Coquina is a poorly consolidated limestone composed of abraded pieces of coral , shells , or other fossil debris. When better consolidated, it
6392-406: The earth's oceans are oversaturated with CaCO 3 by a factor of more than six. The failure of CaCO 3 to rapidly precipitate out of these waters is likely due to interference by dissolved magnesium ions with nucleation of calcite crystals, the necessary first step in precipitation. Precipitation of aragonite may be suppressed by the presence of naturally occurring organic phosphates in
6486-414: The electorate of their civil parish area. The chairman of a town council is entitled to be styled as "town mayor". This term contrasts with simply "mayor", which means the mayor of a borough or a city . However, this is often abbreviated simply to mayor, especially where the town was historically a borough or city, such as Lewes or Ely . In Scotland , the term ' provost ' is commonly used to designate
6580-399: The first refers to the grains and the second to the cement. For example, a limestone consisting mainly of ooids, with a crystalline matrix, would be termed an oosparite. It is helpful to have a petrographic microscope when using the Folk scheme, because it is easier to determine the components present in each sample. Robert J. Dunham published his system for limestone in 1962. It focuses on
6674-485: The five county boroughs of Dublin , Cork , Galway , Waterford , and Limerick as cities, each with a city council, having the same status in law as county councils. The Local Government Reform Act 2014 amalgamated Limerick City Council and Limerick County Council to form Limerick City and County Council , and Waterford City Council and Waterford County Council to form Waterford City and County Council . In Singapore, town councils are in charge of maintaining
6768-572: The formation of distinctive minerals from the silica and clay present in the original limestone. Two major classification schemes, the Folk and Dunham, are used for identifying the types of carbonate rocks collectively known as limestone. Robert L. Folk developed a classification system that places primary emphasis on the detailed composition of grains and interstitial material in carbonate rocks . Based on composition, there are three main components: allochems (grains), matrix (mostly micrite), and cement (sparite). The Folk system uses two-part names;
6862-429: The geologic record are called bioherms . Many are rich in fossils, but most lack any connected organic framework like that seen in modern reefs. The fossil remains are present as separate fragments embedded in ample mud matrix. Much of the sedimentation shows indications of occurring in the intertidal or supratidal zones, suggesting sediments rapidly fill available accommodation space in the shelf or platform. Deposition
6956-435: The government department Local Government New Zealand . For many decades until the local government reforms of 1989, a borough with more than 20,000 people could be proclaimed a city . The boundaries of councils tended to follow the edge of the built-up area, so little distinction was made between the urban area and the local government area. New Zealand's local government structural arrangements were significantly reformed by
7050-402: The island of Averøya . Kvitholmen Lighthouse lies just off the northern coast of the municipality, in an area with hundreds of small islands and skerries . Fræna Municipality lies to the west of Eide, Gjemnes Municipality lies to the southeast, and Averøy Municipality lies to the east. The open Norwegian Sea lies to the north. During its existence, this municipality was governed by
7144-650: The last mayor elections in Chișinău . In the Netherlands, the municipal council (Dutch: gemeenteraad ) is the elected assembly of the municipality. It consists of between 9 and 45 members (as determined by law) who are elected by the citizens once every four years. The council's main tasks are setting the city's policies and overseeing the execution of those policies by the municipality's executive board . Local councils in New Zealand do vary in structure, but are overseen by
7238-438: The leader of the town council. Historically the term 'town council' was used for the governing body of a municipal borough until the 1972 Act . A city council may be: Belfast City Council is now the only city council. Since the local government reforms of 2015 the other four cities form parts of wider districts and do not have their own councils. A city council is the council of one of four council areas designated
7332-587: The mayors (usually elected by people) are the chairmen of them (e.g.: Kyiv City Council , Kharkiv City Council , Odesa City Council , Lviv City Council , Chernihiv City Council ). In the United Kingdom, not all cities have city councils, and the status and functions of city councils vary. In England , since the Local Government Act 1972 , "town council" is the specific name given to a civil parish council which has declared itself by resolution to be
7426-528: The municipality is elected for four years. In Bălți, Vasile Panciuc (PCRM) is the incumbent from 2001 and was re-elected twice: in 2003 during the anticipated elections (as a result of a new reform of the administrative division in Moldova in 2003), and in 2007. In Chișinău, the last mayor elections had to be repeated three times, because of the low rate of participation. As a result, Dorin Chirtoacă (Liberal Party), won
7520-410: The ocean basins, but limestone is rarely preserved in continental slope and deep sea environments. The best environments for deposition are warm waters, which have both a high organic productivity and increased saturation of calcium carbonate due to lower concentrations of dissolved carbon dioxide. Modern limestone deposits are almost always in areas with very little silica-rich sedimentation, reflected in
7614-632: The population of the commune; and the size of the population determines which voting process is used for the election of the municipal council. Established as the Sanitary Board in 1883, the Municipal Council in Hong Kong Island and Kowloon (including the New Kowloon ) provided municipal services to the covered regions in the then British Hong Kong . Partial elections were allowed in 1887, though merely enabling selected persons to vote for members of
7708-426: The reaction: Fossils are often preserved in exquisite detail as chert. Cementing takes place rapidly in carbonate sediments, typically within less than a million years of deposition. Some cementing occurs while the sediments are still under water, forming hardgrounds . Cementing accelerates after the retreat of the sea from the depositional environment, as rainwater infiltrates the sediment beds, often within just
7802-482: The relative purity of most limestones. Reef organisms are destroyed by muddy, brackish river water, and carbonate grains are ground down by much harder silicate grains. Unlike clastic sedimentary rock, limestone is produced almost entirely from sediments originating at or near the place of deposition. Limestone formations tend to show abrupt changes in thickness. Large moundlike features in a limestone formation are interpreted as ancient reefs , which when they appear in
7896-460: The rock. The Dunham scheme is more useful for hand samples because it is based on texture, not the grains in the sample. A revised classification was proposed by Wright (1992). It adds some diagenetic patterns to the classification scheme. Travertine is a term applied to calcium carbonate deposits formed in freshwater environments, particularly waterfalls , cascades and hot springs . Such deposits are typically massive, dense, and banded. When
7990-479: The sediments increases. Chemical compaction takes place by pressure solution of the sediments. This process dissolves minerals from points of contact between grains and redeposits it in pore space, reducing the porosity of the limestone from an initial high value of 40% to 80% to less than 10%. Pressure solution produces distinctive stylolites , irregular surfaces within the limestone at which silica-rich sediments accumulate. These may reflect dissolution and loss of
8084-662: The sediments of the ocean floor abruptly transition from carbonate ooze rich in foraminifera and coccolith remains ( Globigerina ooze) to silicic mud lacking carbonates. In rare cases, turbidites or other silica-rich sediments bury and preserve benthic (deep ocean) carbonate deposits. Ancient benthic limestones are microcrystalline and are identified by their tectonic setting. Fossils typically are foraminifera and coccoliths. No pre-Jurassic benthic limestones are known, probably because carbonate-shelled plankton had not yet evolved. Limestones also form in freshwater environments. These limestones are not unlike marine limestone, but have
8178-568: The seven main villages in the municipality. The arms were designed by Jarle Skuseth. The municipal flag has the same design as the coat of arms. The Church of Norway had one parish ( sokn ) within the municipality of Eide. It was part of the Ytre Nordmøre prosti ( deanery ) in the Diocese of Møre . The municipality is located on the northern part of the Romsdal Peninsula , just west of
8272-476: The uninhabited island of Eldhusøya (now part of the Atlanterhavsveien ) was transferred from Eide to Averøy Municipality . On 1 January 2020, the neighboring municipalities of Eide and Fræna merged into the new municipality of Hustadvika . The municipality (originally the parish ) is named after the old Eide farm ( Old Norse : Eið ) since the first Eide Church was built there. The name comes from
8366-560: The ward elect a councillor known as the municipal councillor, and all such councillors together make the Council. The Council is the Legislative and decision-making unit of the Municipality. The head of the council is called a Chairperson, or President, followed by a Vice-chairperson or a Vice-president. All the meetings are conducted and presided over by the President. The state government appoints
8460-533: The water by photosynthesis and thereby decreasing the solubility of calcium carbonate. Limestone shows the same range of sedimentary structures found in other sedimentary rocks. However, finer structures, such as lamination , are often destroyed by the burrowing activities of organisms ( bioturbation ). Fine lamination is characteristic of limestone formed in playa lakes , which lack the burrowing organisms. Limestones also show distinctive features such as geopetal structures , which form when curved shells settle to
8554-553: The water. Although ooids likely form through purely inorganic processes, the bulk of CaCO 3 precipitation in the oceans is the result of biological activity. Much of this takes place on carbonate platforms . The origin of carbonate mud, and the processes by which it is converted to micrite, continue to be a subject of research. Modern carbonate mud is composed mostly of aragonite needles around 5 μm (0.20 mils) in length. Needles of this shape and composition are produced by calcareous algae such as Penicillus , making this
8648-532: The world to see the new millennium. Gisborne is administered by a district council, but its status as a city is not generally disputed. Under the current law, the minimum population for a new city is 50,000. The municipal council ( Norwegian : Kommunestyre ), literally municipal board, is the highest governing body of the municipality in Norway . The municipal council sets the scope of municipal activity, takes major decisions, and delegates responsibility. The council
8742-513: Was divided into four municipalities: Eide (population: 1,552), Kornstad (population: 1,599), Bremsnes (population: 2,917), and Kvernes (population: 857). During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee . On 1 January 1964, the Vevang area (population: 562) was transferred from Kornstad Municipality to Eide Municipality. On 1 January 1983,
8836-416: Was likely deposited in pore space between grains, suggesting a high-energy depositional environment that removed carbonate mud. Recrystallized sparite is not diagnostic of depositional environment. Limestone outcrops are recognized in the field by their softness (calcite and aragonite both have a Mohs hardness of less than 4, well below common silicate minerals) and because limestone bubbles vigorously when
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