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Lake Ancylus
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 c ... [...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] |
