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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ftjscielo:oai:scielo:S0001-37652007000200001 2023-05-15T14:52:34+02:00 Arctic East Siberia had a lower latitude in the Pleistocene Woelfli,Willy Baltensperger,Walter 2007-06-01 text/html http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000200001 en eng Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências v.79 n.2 2007 ice age pole shift interplanetary cloud mass extinction journal article 2007 ftjscielo 2015-10-26T15:34:46Z 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. Article in Journal/Newspaper Arctic Dansgaard-Oeschger events Greenland North Pole Siberia SciELO Brazil (Scientific Electronic Library Online) Arctic Greenland North Pole |
institution |
Open Polar |
collection |
SciELO Brazil (Scientific Electronic Library Online) |
op_collection_id |
ftjscielo |
language |
English |
topic |
ice age pole shift interplanetary cloud mass extinction |
spellingShingle |
ice age pole shift interplanetary cloud mass extinction Woelfli,Willy Baltensperger,Walter Arctic East Siberia had a lower latitude in the Pleistocene |
topic_facet |
ice age pole shift interplanetary cloud mass extinction |
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. |
format |
Article in Journal/Newspaper |
author |
Woelfli,Willy Baltensperger,Walter |
author_facet |
Woelfli,Willy Baltensperger,Walter |
author_sort |
Woelfli,Willy |
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 |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000200001 |
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 v.79 n.2 2007 |
_version_ |
1766323797120516096 |