Arctic East Siberia had a lower latitude in the Pleistocene
Remains of mammoths in Arctic East Siberia, where there is not sufficient sunlight over the year for the growth of the plants on which these animals feed, indicate that the latitude of this region was lower before the end of the Pleistocene than now. Reconstructing this geographic pole shift, we int...
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Online Access: | https://doi.org/10.1590/S0001-37652007000200001 https://doaj.org/article/aee181b82659439686f5ce058f322129 |
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ftdoajarticles:oai:doaj.org/article:aee181b82659439686f5ce058f322129 2023-05-15T14:58:13+02:00 Arctic East Siberia had a lower latitude in the Pleistocene Willy Woelfli Walter Baltensperger 2007-06-01T00:00:00Z https://doi.org/10.1590/S0001-37652007000200001 https://doaj.org/article/aee181b82659439686f5ce058f322129 EN eng Academia Brasileira de Ciências http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000200001 https://doaj.org/toc/0001-3765 https://doaj.org/toc/1678-2690 doi:10.1590/S0001-37652007000200001 0001-3765 1678-2690 https://doaj.org/article/aee181b82659439686f5ce058f322129 Anais da Academia Brasileira de Ciências, Vol 79, Iss 2, Pp 183-193 (2007) era do gelo deslocamento dos pólos nuvem interplanetária extinção em massa ice age pole shift interplanetary cloud mass extinction Science Q article 2007 ftdoajarticles https://doi.org/10.1590/S0001-37652007000200001 2022-12-31T05:21:15Z Remains of mammoths in Arctic East Siberia, where there is not sufficient sunlight over the year for the growth of the plants on which these animals feed, indicate that the latitude of this region was lower before the end of the Pleistocene than now. Reconstructing this geographic pole shift, we introduce a massive object, which moved in an extremely eccentric orbit and was hot from tidal work and solar radiation. Evaporation produced a disk-shaped cloud of ions around the Sun. This cloud partially shielded the solar radiation, producing the cold and warm periods characterizing the Pleistocene. The shielding depends on the inclination of Earth's orbit, which has a period of 100. 000 years. The cloud builds up to a point where inelastic particle collisions induce its collapse The resulting near-periodic time dependence resembles that of Dansgaard-Oeschger events. The Pleistocene ended when the massive object had a close encounter with the Earth, which suffered a one per mil extensional deformation. While the deformation relaxed to an equilibrium shape in one to several years, the globe turned relative to the rotation axis: The North Pole moved from Greenland to the Arctic Sea. The massive object split into fragments, which evaporated. Na Sibéria Oriental Ártica, onde há sobras de mamutes, a luzsolar durante o ano é insuficiente para sustentar as plantas que alimentam esses animais. Isto prova que a latitude dessas regiões era menor durante o Pleistoceno. Reconstruindo esse deslocamento geográfico dos pólos introduzimos um planeta adicional numa órbita tão excêntrica que a energia da maré e da radiação solar o esquentou. A sua evaporação criava em torno do sol uma nuvem de íons que espalhava a radiação solar e assim causava os períodos quentes e frios do Pleistoceno. O efeito depende da inclinação da órbita da terra, que varia com um período de 100. 000 anos. Quase periodicamente anuvem se formava até o ponto em que as colisões inelásticas entre as partículas a levaram ao colapso. Essa dependência do tempo é ... Article in Journal/Newspaper Arctic Dansgaard-Oeschger events Greenland North Pole Siberia Directory of Open Access Journals: DOAJ Articles Arctic Greenland North Pole Anais da Academia Brasileira de Ciências 79 2 183 193 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
era do gelo deslocamento dos pólos nuvem interplanetária extinção em massa ice age pole shift interplanetary cloud mass extinction Science Q |
spellingShingle |
era do gelo deslocamento dos pólos nuvem interplanetária extinção em massa ice age pole shift interplanetary cloud mass extinction Science Q Willy Woelfli Walter Baltensperger Arctic East Siberia had a lower latitude in the Pleistocene |
topic_facet |
era do gelo deslocamento dos pólos nuvem interplanetária extinção em massa ice age pole shift interplanetary cloud mass extinction Science Q |
description |
Remains of mammoths in Arctic East Siberia, where there is not sufficient sunlight over the year for the growth of the plants on which these animals feed, indicate that the latitude of this region was lower before the end of the Pleistocene than now. Reconstructing this geographic pole shift, we introduce a massive object, which moved in an extremely eccentric orbit and was hot from tidal work and solar radiation. Evaporation produced a disk-shaped cloud of ions around the Sun. This cloud partially shielded the solar radiation, producing the cold and warm periods characterizing the Pleistocene. The shielding depends on the inclination of Earth's orbit, which has a period of 100. 000 years. The cloud builds up to a point where inelastic particle collisions induce its collapse The resulting near-periodic time dependence resembles that of Dansgaard-Oeschger events. The Pleistocene ended when the massive object had a close encounter with the Earth, which suffered a one per mil extensional deformation. While the deformation relaxed to an equilibrium shape in one to several years, the globe turned relative to the rotation axis: The North Pole moved from Greenland to the Arctic Sea. The massive object split into fragments, which evaporated. Na Sibéria Oriental Ártica, onde há sobras de mamutes, a luzsolar durante o ano é insuficiente para sustentar as plantas que alimentam esses animais. Isto prova que a latitude dessas regiões era menor durante o Pleistoceno. Reconstruindo esse deslocamento geográfico dos pólos introduzimos um planeta adicional numa órbita tão excêntrica que a energia da maré e da radiação solar o esquentou. A sua evaporação criava em torno do sol uma nuvem de íons que espalhava a radiação solar e assim causava os períodos quentes e frios do Pleistoceno. O efeito depende da inclinação da órbita da terra, que varia com um período de 100. 000 anos. Quase periodicamente anuvem se formava até o ponto em que as colisões inelásticas entre as partículas a levaram ao colapso. Essa dependência do tempo é ... |
format |
Article in Journal/Newspaper |
author |
Willy Woelfli Walter Baltensperger |
author_facet |
Willy Woelfli Walter Baltensperger |
author_sort |
Willy Woelfli |
title |
Arctic East Siberia had a lower latitude in the Pleistocene |
title_short |
Arctic East Siberia had a lower latitude in the Pleistocene |
title_full |
Arctic East Siberia had a lower latitude in the Pleistocene |
title_fullStr |
Arctic East Siberia had a lower latitude in the Pleistocene |
title_full_unstemmed |
Arctic East Siberia had a lower latitude in the Pleistocene |
title_sort |
arctic east siberia had a lower latitude in the pleistocene |
publisher |
Academia Brasileira de Ciências |
publishDate |
2007 |
url |
https://doi.org/10.1590/S0001-37652007000200001 https://doaj.org/article/aee181b82659439686f5ce058f322129 |
geographic |
Arctic Greenland North Pole |
geographic_facet |
Arctic Greenland North Pole |
genre |
Arctic Dansgaard-Oeschger events Greenland North Pole Siberia |
genre_facet |
Arctic Dansgaard-Oeschger events Greenland North Pole Siberia |
op_source |
Anais da Academia Brasileira de Ciências, Vol 79, Iss 2, Pp 183-193 (2007) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000200001 https://doaj.org/toc/0001-3765 https://doaj.org/toc/1678-2690 doi:10.1590/S0001-37652007000200001 0001-3765 1678-2690 https://doaj.org/article/aee181b82659439686f5ce058f322129 |
op_doi |
https://doi.org/10.1590/S0001-37652007000200001 |
container_title |
Anais da Academia Brasileira de Ciências |
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79 |
container_issue |
2 |
container_start_page |
183 |
op_container_end_page |
193 |
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1766330309224169472 |