|
Impact Craters In Finland
As of June 2018, 12 confirmed impact craters have been found in Finland. They are listed below, sorted by original diameter. Note 1: The "original" crater dimensions are coarse estimates. Original depths were calculated using the given original diameter using thImpact: Earth!program. Note 2: "Current solid surface" topography is calculated from the deepest floor (regardless whether it is underwater or on dry land) to highest rim crest; other depth values give the depth of the floor in relation to the original terrain, thus excluding the rim and/or central uplift. Note 3: Evidence for impact origin for a given structure is often provided in several publications. The year column includes some publications where some evidence of impact origin was provided even though an impact was not necessarily suggested by the authors; somewhere an impact was suggested even though the proof wasn't conclusive; and somewhere definite proof was provided. General note 1: Crater sizes and shapes vary a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metre
The metre (British spelling) or meter (American spelling; see spelling differences) (from the French unit , from the Greek noun , "measure"), symbol m, is the primary unit of length in the International System of Units (SI), though its prefixed forms are also used relatively frequently. The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumference is approximately km. In 1799, the metre was redefined in terms of a prototype metre bar (the actual bar used was changed in 1889). In 1960, the metre was redefined in terms of a certain number of wavelengths of a certain emission line of krypton-86. The current definition was adopted in 1983 and modified slightly in 2002 to clarify that the metre is a measure of proper length. From 1983 until 2019, the metre was formally defined as the length of the path travelled by light in a vacuum in of a second. After the 2019 redefi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saimaa
Saimaa ( , ; sv, Saimen) is a lake located in the Finnish Lakeland area in southeastern Finland. At approximately , it is the largest lake in Finland, and the fourth largest natural freshwater lake in Europe. The name Saimaa likely comes from a non-Uralic, non-Indo European substrate language. History It was formed by glacial melting at the end of the Ice Age. Major towns on the lakeshore include Lappeenranta, Imatra, Savonlinna, Mikkeli, Varkaus, and Joensuu. About 6000 years ago, ancient Lake Saimaa, estimated to cover nearly at the time, was abruptly discharged through a new outlet. The event created thousands of square kilometres of new residual wetlands. Following this event, the region saw a population maximum in the decades following only to later return to an ecological development towards old boreal conifer forests which saw a decline in population. Topography The Vuoksi River flows from Saimaa to Lake Ladoga. Most of the lake is spotted with islands, and narrow can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Korsholm
Korsholm (; fi, Mustasaari) is a municipality of Finland. The town of Vaasa was founded in Korsholm parish in 1606 and today the municipality completely surrounds the city. It is a coastal, mostly rural municipality, consisting of a rural landscape and a large, fractured archipelago. The administrative center is Smedsby, situated from Vaasa center along Finnish national road 8. Geography It is located in the province of Western Finland and is part of the Ostrobothnia region. The municipality consists of the central areas, the southern plain, and the extensive archipelago. Parts of the archipelago belong to the UNESCO World Heritage Site of Kvarken. One of Korsholm's more notable landmarks is that it holds Finland's longest bridge, the Replot Bridge. The bridge connects the island of Replot to the mainland. Finland's second oldest stone bridge that is still in use, can also be found in Korsholm, in the village of Toby. Major islands in the archipelago include Replot, Björkö ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vaasa
Vaasa (; sv, Vasa, , Sweden ), in the years 1855–1917 as Nikolainkaupunki ( sv, Nikolajstad; literally meaning "city of Nicholas),Vaasa oli ennen Nikolainkaupunki ja Aurinkolahti Mustalahti – paikannimiä ei kuitenkaan pidä muuttaa heppoisin perustein – '''' (in Finnish) is a city on the west coast of . It received its charter in 1606, during the reign of [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Cambrian
The Cambrian Period ( ; sometimes symbolized Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million years ago (mya) to the beginning of the Ordovician Period mya. Its subdivisions, and its base, are somewhat in flux. The period was established as "Cambrian series" by Adam Sedgwick, who named it after Cambria, the Latin name for 'Cymru' (Wales), where Britain's Cambrian rocks are best exposed. Sedgwick identified the layer as part of his task, along with Roderick Murchison, to subdivide the large "Transition Series", although the two geologists disagreed for a while on the appropriate categorization. The Cambrian is unique in its unusually high proportion of sedimentary deposits, sites of exceptional preservation where "soft" parts of organisms are preserved as well as their more resistant shells. As a result, our understanding of the Cambrian bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambrian
The Cambrian Period ( ; sometimes symbolized C with bar, Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million years ago (mya) to the beginning of the Ordovician Period mya. Its subdivisions, and its base, are somewhat in flux. The period was established as "Cambrian series" by Adam Sedgwick, who named it after Cambria, the Latin name for 'Cymru' (Wales), where Britain's Cambrian rocks are best exposed. Sedgwick identified the layer as part of his task, along with Roderick Murchison, to subdivide the large "Transition Series", although the two geologists disagreed for a while on the appropriate categorization. The Cambrian is unique in its unusually high proportion of sedimentary deposits, sites of exceptional preservation where "soft" parts of organisms are preserved as well as their more resistant shells. As a result, our understanding of the Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Söderfjärden
Söderfjärden is a polder in Ostrobothnia, western Finland, 10 kilometres south of the town of Vaasa. The plain is in an impact crater which was made at least some 640 million years old (Proterozoic, near the end of the Cryogenian). The crater's diameter is and its maximum depth is . It is filled with Cambrian sandstones leaving only the outer rim visible. There is also a central uplift, which is buried. After rising from the sea due to post-glacial rebound, Söderfjärden was a wetland but was later drained with help of a pump station. It is currently cultivated and is clearly visible from air as a large circular field. This makes Söderfjärden unique among the other impact structures in Finland which are at least partially below sea level. The area of the basin is divided half and half between Vaasa and Korsholm, with a small corner belonging to Malax. See also *Impact craters in Finland References External links Sundom villagetravel information page about Söderfjärd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archipelago Sea
The Archipelago Sea ( fi, Saaristomeri, sv, Skärgårdshavet) is a part of the Baltic Sea between the Gulf of Bothnia, the Gulf of Finland and the Sea of Åland, within Finnish territorial waters. By some definitions it contains the largest archipelago in the world by the number of islands, although many of the islands are very small and tightly clustered. The larger islands are inhabited and connected by ferries and bridges. Åland, including the largest islands of the region, forms an autonomous region within Finland. The rest of the islands are part of the region of Southwest Finland. The Archipelago Sea is a significant tourist destination. ''The Guardians journalist Tristan Parker wrote an article praising the Turku Archipelago on July 29, 2021, mentioning that "nowhere has the gentle magic of the smaller islands – or their wildlife." Geography and geology The Archipelago Sea covers a roughly triangular area with the cities of Mariehamn, Uusikaupunki, and Hanko a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sund, Åland
Sund is a municipality of Åland. It is an autonomous territory of Finland which is very rich in history and culture, being one of the official 27 National landscapes of Finland. The municipality has a population of () and covers an area of of which is water. The population density is . The municipality is unilingually Swedish. The old Medieval post route from Stockholm, Sweden to Turku, Finland passes through Sund. History and sight-seeing Many pre-historic sites in Sund survive from the Stone, Bronze and Iron Ages. The medieval church of Sund, dedicated to John the Baptist, dates from the 13th century. It is the largest church in Åland. Inside the church there is a tall crucifix, the tallest in all of Scandinavia. Kastelholm Castle ( sv, Kastelholms slott), the only castle in Åland, is partially in ruins. The castle was built on a small island that was surrounded by water and moats filled with several lines of poles. It was first mentioned in 1388 in the contract of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lumparland
Lumparland is a municipality of Åland, an autonomous territory of Finland. It is the smallest municipality on mainland Åland. The municipality has a population of () and covers an area of of which is water. The population density is . The municipality is unilingually Swedish. The main village is Klemetsby, where there is a bank, a church, a post office and a school. Klemetsby is away from Mariehamn along the Highway 3. The ferry port of Långnäs is situated in the eastern part of Lumparland. Lumparland was the last municipality in Finland to establish its own website which happened in 2004. The municipality has previously also been known as "'Lumparlanti" in some Finnish documents, but is today referred to as "Lumparland" also in Finnish. Geography Lumparland borders the eastern edge of a billion-year-old nine-kilometer wide water filled impact crater, Lumparn, which is devoid of islands. Lumpokasen () is the highest point in the municipality. Economy Agriculture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lemland
Lemland is a municipality of Åland, an autonomous territory of Finland. The municipality has a population of () and covers an area of of which is water. The population density is . The municipality is unilingually Swedish. The Lemström channel divides Lemland from its neighboring municipality, Jomala. It was widened by Russian POWs in 1882. History The church in Lemland was built in the 13th century and has wall paintings from the 14th century. The church is dedicated to Bridget of Sweden. During the Finnish War in 1808 the Swedish king Gustav IV Adolf Gustav IV Adolf or Gustav IV Adolph (1 November 1778 – 7 February 1837) was King of Sweden from 1792 until he was deposed in a coup in 1809. He was also the last Swedish monarch to be the ruler of Finland. The occupation of Finland in 1808–09 ... had his headquarters in the Lemland parsonage.Torsten Hellberg (ed): ''Åland – mer än öar'', p.19. Stockholm 2001. Gallery References External links Municipality o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jomala
Jomala is a municipality of Åland, an autonomous territory of Finland. In terms of population, it is the next largest after Mariehamn, the capital of Åland. The municipality has a population of () and covers an area of of which is water. The population density is . The municipality is unilingually Swedish. Mariehamn Airport is located in Jomala. Three of Åland's four highways cross the municipality of Jomala as they start from Mariehamn; highway 1 runs west to Eckerö, highway 2 northeast to Sund and highway 3 east to Lumparland. History "Jomala" is the name of a god common to many Finnic peoples. Jumala is Finnish for god and Jomala is one of the sites where the Christian church organized itself in Finland. Other versions of the name that have occurred are Jwmala in 1356, Jomalum in 1414, Jomala in 1486 and Jwmala in 1494. One of oldest churches in Finland stands here as testament to these times. Jomala was inhabited around 2000 BC with Jettböle being one of the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
