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Ancylus Lake
Ancylus Lake is a name given by geologists to a large freshwater lake that existed in northern Europe approximately from 9500 to 8000 years B.C being in effect one of various predecessors to the modern Baltic Sea. Origin, evolution and demise The Ancylus Lake replaced the Yoldia Sea after the latter had been severed from its saline intake across a seaway along the Central Swedish lowland, roughly between Gothenburg and Stockholm. The cutoff was the result of isostatic rise being faster than the concurrent post-glacial sea level rise. In the words of Svante Björck the Ancylus Lake "is perhaps the most enigmatic (and discussed) of the many Baltic stages". The lake's outlet and elevation relative to sea-level was for long time surrounded by controversy. It is now known that the lake was above sea level, included Lake Vänern, and drained westward through three outlets at Göta Älv, Uddevalla and Otteid. As result of the continued isostatic uplift of Sweden, the outlets in cent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltic Sea
The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain. The sea stretches from 53°N to 66°N latitude and from 10°E to 30°E longitude. A marginal sea of the Atlantic, with limited water exchange between the two water bodies, the Baltic Sea drains through the Danish Straits into the Kattegat by way of the Øresund, Great Belt and Little Belt. It includes the Gulf of Bothnia, the Bay of Bothnia, the Gulf of Finland, the Gulf of Riga and the Bay of Gdańsk. The " Baltic Proper" is bordered on its northern edge, at latitude 60°N, by Åland and the Gulf of Bothnia, on its northeastern edge by the Gulf of Finland, on its eastern edge by the Gulf of Riga, and in the west by the Swedish part of the southern Scandinavian Peninsula. The Baltic Sea is connected by artificial waterways to the White Sea via the White Sea–Baltic Canal and to the German ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Bridge
In biogeography, a land bridge is an isthmus or wider land connection between otherwise separate areas, over which animals and plants are able to cross and Colonisation (biology), colonize new lands. A land bridge can be created by marine regression, in which sea levels fall, exposing shallow, previously submerged sections of continental shelf; or when new land is created by plate tectonics; or occasionally when the sea floor rises due to post-glacial rebound after an ice age. Prominent examples * Adam's Bridge (also known as Rama Setu), connecting India and Sri Lanka * The Bass Strait#Discovery and exploration, Bassian Plain, which linked Australia and Tasmania * The Beringia, Bering Land Bridge (aka Beringia), which intermittently connected Alaska (Northern America) with Siberia (North Asia) as sea levels rose and fell under the effect of ice ages * East Asia’s former unnamed landmass, During the last Ice Age, which ended approximately 15,000 years ago, Japanese Archipela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lennart Von Post
Ernst Jakob Lennart von Post (16June 188411January 1951) was a Swedish naturalist and geologist. He was the first to publish quantitative analysis of pollen and is counted as one of the founders of palynology. He was a professor at Stockholm University 1929–1950. Early life Lennart von Post was born in Johannesberg, near Västerås in Västmanland County, Sweden. He was the son of Carl-Fabian Axel von Post (1849-1927) and Beata Jacqueline Charlotta Christina (1852-1885). Von Post was an only child. His father served in the Swedish Army as a judge-advocate but also worked as a civilian lawyer, farmer and assistant cantonal judge. Education Von Post studied geology at Uppsala University from 1902 to 1907, eventually obtaining his ''licentiat'' degree. At Uppsala he learned from lecturers such as A.G. Högbom, who developed the concept of the geochemical carbon cycle and Rutger Sernander, of the Blytt-Sernander Pleistocene sequence. Von Post began working on a history of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Axel Gavelin
Axel Olof Gavelin (4 October 1875 – 14 June 1947) was Swedish geologist. He was director of the Geological Survey of Sweden. He studied both ice-dammed lakes and Precambrian rocks across Sweden. Biography Axel Olof Gavelin was born in the parish of Vilhelmina in Västerbotten County, Sweden. Gavelin earned a Ph.D. at Uppsala University in 1905. He was employed as acting geologist at the Swedish Geological Survey in 1902, became state geologist in 1903, acting head in 1914 and director general in 1916–41. He carried out his most important geological work in Sweden's bedrock areas and mountain range. He became a member of the Swedish Academy of Sciences and of the Academy of Agriculture in 1922, of the Physiographic Society in Lund in 1924 and of the Academy of Engineering Sciences in 1925. In 1931, Gavelin became chairman of the Swedish Society for Nature Conservation. He died during 1947 at Engelbrekt Parish in Stockholm County Stockholm County ( sv, Stockholms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arvid Högbom
Arvid Gustaf Högbom was a Swedish geologist. He was a professor of mineralogy and geology at Uppsala University. Biography Arvid Högbom was born at Vännäs in Västerbotten County, Sweden. Högbom was a student at Uppsala University earning a Bachelor of Philosophy in 1880 and a Licentiate in philosophy in 1884. In 1885, he defended his doctorate thesis; '' Iakttagelser rörande Jemtlands glaciala geologi med inledande öfversigt af berggrunden'' ( Stockholm. 1885). He appointed lecturer at Uppsala in 1885. In 1891 he joined the staff of the University of Stockholm, but returned to Uppsala University in 1896 as professor of geology and mineralogy, occupying the chair until his retirement in 1922. He became a member of the Royal Society of Sciences in Uppsala in 1898, of the Royal Swedish Academy of Agriculture and Forestry in 1913 and of the Royal Society of Arts and Sciences in Gothenburg in 1921. He became a member of the Royal Swedish Academy of Sciences in 1905 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernst Antevs
Ernst Valdemar Antevs (November 20, 1888 – May 19, 1974) was a Swedish-American geologist and educator who made significant contributions to Quaternary geology, particularly geomorphology and geochronology. Ernst Valdemar Antevs was born on a farm in the Vartofta-Åsaka parish of Skaraborg, (now Västra Götaland), Sweden. He attended Stockholm University where in 1917, he was awarded his Ph.D. in geology. He was employed as a docent at the University of Stockholm from 1917 to 1935. He was also a research associate for the American Geographical Society (1921 to 1922), the Carnegie Institution of Washington (between 1922-1940), Geological Survey of Canada (between 1923- 1930), and Harvard University (1924-1926). He moved to the United States during the 1930s and joined investigators from the Gila Pueblo Archaeological Foundation in Globe, Arizona. In 1939, he became a citizen of the United States. Antevs joined the University of Arizona Department Geoch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gerard De Geer
Baron Gerard Jacob De Geer (20 November 1858 – 24 July 1943) was a Swedish geologist who made significant contributions to Quaternary geology, particularly geomorphology and geochronology. De Geer is best known for his work on varves. In 1890 De Geer was the first to apply the name Ancylus Lake to the Baltic paleolake discovered by Henrik Munthe. He subsequently participated the protracted scientific controversy surrounding this lake. Biography Baron Gerard Jacob De Geer comes from a well-known Swedish aristocratic family of Brabant origin, who had emigrated to Sweden in the early seventeenth century. His family included prominent industrialists and politicians. His father Louis and older brother Gerhard Louis served as the Prime Minister of Sweden. Gerard Jacob was born on October 2, 1858 in Stockholm in the family of Baron Louis Gerhard de Geer, at that time the first Minister of Justice in the Swedish government, and Carolina de Geer, née Countess Wachtmeister. Since 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancylus Fluviatilis
The river limpet (''Ancylus fluviatilis'') is a species of very small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusk in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies. Description The 5–8 mm. limpet-like shell has a backwardly directed, conical apex. The shell shape is higher than ''Acroloxus'' and ''Ferrissia''.The apex is blunt when seen from above, but appears more pointed from the side. The shell is bent backwards and very weakly to the right side. It is thin and translucent, with reticulate sculpture and fine growth lines. In colour it is light yellowish to reddish brown or dull pale brown. The animal is grey with black dots near the head and almost entirely covered by the shell. The tentacles are triangular with eyes at their base. The genital pore and pneumostome are very small and located at the right side. Distribution The distribution type is (probably since de-limitation of various souther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henrik Munthe
Henrik Vilhelm Munthe (1 November 1860 – 15 August 1958) was a Swedish geologist. Biography Munthe became a student in 1882 and in 1892 a doctor of philosophy and associate professor of geology at Uppsala University, where he was acting professor of mineralogy and geology in 1894–96. In 1898 he was appointed and in 1899 regular geologist at the Swedish Geological Survey (SGU). In the years 1904-13 he was secretary of the Geological Society in Stockholm. Munthe received the title of professor in 1917. He was elected to the Royal Swedish Academy of Sciences in 1928. His research centered on the Quaternary geology of the Baltic Sea region, nevertheless he did also some contributions on the Silurian stratigraphy of Västergötland and Gotland. Having begun his career using bicycles to survey the terrain Munthe continued to advocate using bicycle well after survey by car had become commonplace. A Gotlänning ("Gotlander") by birth Munthe's dialect is reported to have been Gotlà ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltic History 7500-BC
Baltic may refer to: Peoples and languages *Baltic languages, a subfamily of Indo-European languages, including Lithuanian, Latvian and extinct Old Prussian *Balts (or Baltic peoples), ethnic groups speaking the Baltic languages and/or originating from the Baltic countries *Baltic Germans, historical ethnic German minority in Latvia and Estonia *Baltic Finnic peoples, the Finnic peoples historically inhabiting the area on the northeastern side of the Baltic sea Places Northern Europe * Baltic Sea, in Europe * Baltic region, an ambiguous term referring to the general area surrounding the Baltic Sea * Baltic states (also Baltic countries, Baltic nations, Baltics), a geopolitical term, currently referring to Estonia, Latvia and Lithuania * Baltic Provinces or governorates, former parts of the Swedish Empire and then Russian Empire (in modern Latvia, Estonia) * Baltic Shield, the exposed Precambrian northwest segment of the East European Craton * Baltic Plate, an ancient tectonic pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Of Bothnia
The Gulf of Bothnia (; fi, Pohjanlahti; sv, Bottniska viken) is divided into the Bothnian Bay and Bothnian Sea, and it is the northernmost arm of the Baltic Sea, between Finland's west coast ( East Bothnia) and the Sweden's east coast (West Bothnia and North Bothnia). In the south of the gulf lies Åland, between the Sea of Åland and the Archipelago Sea. Name Bothnia is a latinization. The Swedish name was originally just , with being Old Norse for "gulf" or "bay", which is also the meaning of the second element . The name was applied to the Gulf of Bothnia as in Old Norse, after , which at the time referred to the coastland west of the gulf. Later, was applied to the regions on the western side and the eastern side ('East Bottom' and 'West Bottom'). The Finnish name of Österbotten, (, meaning 'land'), gives a hint as to the meaning in both languages: the meaning of includes both 'bottom' and 'north'. is the base word for north, , with an adjectival suffix adde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
