Paleomagnetic investigation of McMurdo volcanics, Antarctica
A total of 212 paleomagnetic samples were collected from the Hut Point Peninsula, the Cape Royds and the Taylor Valley in the McMurdo Sound, Antarctica. These samples have stable natural remanent magnetization. The results of paleomagnetic studies are as follows : (1) The position of Antarctica has...
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National Institute of Polar Research
1983
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ftdoajarticles:oai:doaj.org/article:369f940708174fb7942b3b566674e836 2023-05-15T13:47:51+02:00 Paleomagnetic investigation of McMurdo volcanics, Antarctica Minoru Funaki 1983-01-01T00:00:00Z https://doi.org/10.15094/00008333 https://doaj.org/article/369f940708174fb7942b3b566674e836 EN JA eng jpn National Institute of Polar Research https://doi.org/10.15094/00008333 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008333 0085-7289 2432-079X https://doaj.org/article/369f940708174fb7942b3b566674e836 Antarctic Record, Iss 77, Pp 1-19 (1983) Geography (General) G1-922 article 1983 ftdoajarticles https://doi.org/10.15094/00008333 2022-12-30T20:51:47Z A total of 212 paleomagnetic samples were collected from the Hut Point Peninsula, the Cape Royds and the Taylor Valley in the McMurdo Sound, Antarctica. These samples have stable natural remanent magnetization. The results of paleomagnetic studies are as follows : (1) The position of Antarctica has been almost the same from the Late Pliocene Age up to the present. The position of the virtual geomagnetic pole (VGP) (11 normals and 3 reverses) from the Pliocene Age to the present is within a polar cap area of about 30°latitude, whose center is located almost exactly at the south geographical pole. (2) The sequence of lava eruption was determined by synthetic evidence from paleomagnetic, geological and geochronological data. The result revealed, from the latest to the earliest, Twin Crater Sequence and Cape Royds Sequence (Brunhes Epoch), Half Moon Crater Sequence (Jaramillo Event), Observation Hill Sequence, Cape Armitage Sequence (Matuyama Epoch), Crater Hill and Castle Rock (Olduvai or Reunion Events) and Taylor Valley Sequence (Kaena Event). Article in Journal/Newspaper Antarc* Antarctica Geomagnetic Pole McMurdo Sound Castle Rock Directory of Open Access Journals: DOAJ Articles McMurdo Sound Taylor Valley ENVELOPE(163.000,163.000,-77.617,-77.617) Royds ENVELOPE(166.150,166.150,-77.550,-77.550) Cape Royds ENVELOPE(166.150,166.150,-77.550,-77.550) Armitage ENVELOPE(166.667,166.667,-77.850,-77.850) Hut Point ENVELOPE(166.850,166.850,-77.767,-77.767) Hut Point Peninsula ENVELOPE(166.850,166.850,-77.767,-77.767) Castle Rock ENVELOPE(-130.208,-130.208,57.840,57.840) Cape Armitage ENVELOPE(163.250,163.250,-78.150,-78.150) Observation Hill ENVELOPE(166.667,166.667,-77.850,-77.850) Crater Hill ENVELOPE(166.717,166.717,-77.833,-77.833) Half Moon Crater ENVELOPE(166.750,166.750,-77.800,-77.800) Twin Crater ENVELOPE(166.683,166.683,-77.833,-77.833) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Japanese |
topic |
Geography (General) G1-922 |
spellingShingle |
Geography (General) G1-922 Minoru Funaki Paleomagnetic investigation of McMurdo volcanics, Antarctica |
topic_facet |
Geography (General) G1-922 |
description |
A total of 212 paleomagnetic samples were collected from the Hut Point Peninsula, the Cape Royds and the Taylor Valley in the McMurdo Sound, Antarctica. These samples have stable natural remanent magnetization. The results of paleomagnetic studies are as follows : (1) The position of Antarctica has been almost the same from the Late Pliocene Age up to the present. The position of the virtual geomagnetic pole (VGP) (11 normals and 3 reverses) from the Pliocene Age to the present is within a polar cap area of about 30°latitude, whose center is located almost exactly at the south geographical pole. (2) The sequence of lava eruption was determined by synthetic evidence from paleomagnetic, geological and geochronological data. The result revealed, from the latest to the earliest, Twin Crater Sequence and Cape Royds Sequence (Brunhes Epoch), Half Moon Crater Sequence (Jaramillo Event), Observation Hill Sequence, Cape Armitage Sequence (Matuyama Epoch), Crater Hill and Castle Rock (Olduvai or Reunion Events) and Taylor Valley Sequence (Kaena Event). |
format |
Article in Journal/Newspaper |
author |
Minoru Funaki |
author_facet |
Minoru Funaki |
author_sort |
Minoru Funaki |
title |
Paleomagnetic investigation of McMurdo volcanics, Antarctica |
title_short |
Paleomagnetic investigation of McMurdo volcanics, Antarctica |
title_full |
Paleomagnetic investigation of McMurdo volcanics, Antarctica |
title_fullStr |
Paleomagnetic investigation of McMurdo volcanics, Antarctica |
title_full_unstemmed |
Paleomagnetic investigation of McMurdo volcanics, Antarctica |
title_sort |
paleomagnetic investigation of mcmurdo volcanics, antarctica |
publisher |
National Institute of Polar Research |
publishDate |
1983 |
url |
https://doi.org/10.15094/00008333 https://doaj.org/article/369f940708174fb7942b3b566674e836 |
long_lat |
ENVELOPE(163.000,163.000,-77.617,-77.617) ENVELOPE(166.150,166.150,-77.550,-77.550) ENVELOPE(166.150,166.150,-77.550,-77.550) ENVELOPE(166.667,166.667,-77.850,-77.850) ENVELOPE(166.850,166.850,-77.767,-77.767) ENVELOPE(166.850,166.850,-77.767,-77.767) ENVELOPE(-130.208,-130.208,57.840,57.840) ENVELOPE(163.250,163.250,-78.150,-78.150) ENVELOPE(166.667,166.667,-77.850,-77.850) ENVELOPE(166.717,166.717,-77.833,-77.833) ENVELOPE(166.750,166.750,-77.800,-77.800) ENVELOPE(166.683,166.683,-77.833,-77.833) |
geographic |
McMurdo Sound Taylor Valley Royds Cape Royds Armitage Hut Point Hut Point Peninsula Castle Rock Cape Armitage Observation Hill Crater Hill Half Moon Crater Twin Crater |
geographic_facet |
McMurdo Sound Taylor Valley Royds Cape Royds Armitage Hut Point Hut Point Peninsula Castle Rock Cape Armitage Observation Hill Crater Hill Half Moon Crater Twin Crater |
genre |
Antarc* Antarctica Geomagnetic Pole McMurdo Sound Castle Rock |
genre_facet |
Antarc* Antarctica Geomagnetic Pole McMurdo Sound Castle Rock |
op_source |
Antarctic Record, Iss 77, Pp 1-19 (1983) |
op_relation |
https://doi.org/10.15094/00008333 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008333 0085-7289 2432-079X https://doaj.org/article/369f940708174fb7942b3b566674e836 |
op_doi |
https://doi.org/10.15094/00008333 |
_version_ |
1766247944144551936 |