Possible Holocene excursion of the Earth's magnetic field in southern South America: New records from archaeological sites in Argentina
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- Nami Hugo G.
- Laboratorio de Paleomagnetismo“Daniel A. Valencio”, Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas, Físicas y Naturales, Ciudad Universitaria Programa de Estudios Prehistóricos (CONICET)
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Palaeomagnetic studies were carried out in several archaeological and palaeontological sites across Argentina and Chile. Remanence directions far removed from the present magnetic field, probably corresponding to a field excursion were recorded in several stratigraphic sections spaning -11 to 2 ky bp. Detailed palaeomagnetic data from 235 cores obtained in six sections from archaeological sites in Argentina are reported. Stability of the NRM was analyzed by progressive thermal and alternating field demagnetization and ChRM directions determined in most cases. Computed VGPs from those directions tend to be concentrated over North America, Europe, Eastern Asia and Africa. Using 275 VGPs a palaeomagnetic pole that is -20°apart from the Earth's rotation's axis was obtained.
収録刊行物
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- Ｅａｒｔｈ， Ｐｌａｎｅｔｓ ａｎｄ Ｓｐａｃｅ
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Ｅａｒｔｈ， Ｐｌａｎｅｔｓ ａｎｄ Ｓｐａｃｅ 51 (3), 175-191, 1999
地球電磁気・地球惑星圏学会 、公益社団法人 日本地震学会、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会
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詳細情報 詳細情報について
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- CRID
- 1390282681485531008
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- NII論文ID
- 10003737489
- 130003780741
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- NII書誌ID
- AA11211921
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- ISSN
- 18805981
- 13438832
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- NDL書誌ID
- 4716978
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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