Abstract:
Paleomagnetic study of a 3-m thick sequence containing 302 glacial varves outcropping in Alto Rio Mayo valley shows strong intensities, a declination shifting gradually to the west and an increasing negative inclination. Virtual geomagnetic pole positions reveal a migration of the geomagnetic pole from NE Canada-SW Greenland to a position around NW Siberia. The deposit is believed to represent the interval between the recession of the last glacial maximum and a final ice front oscillation, with a readvance in the Alto Río Mayo valley thought to have occurred shortly before 13 500 yr B.P. © 1990.
Registro:
Documento: |
Artículo
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Título: | Paleomagnetic record from glacial varves in Alto Río Mayo, Patagonia, Argentina |
Autor: | Sylwan, C.A.; Beraza, L.A. |
Filiación: | Stockholm Paleomagnetic Laboratory, Geological Institute, University of Stockholm, S-106 91 Stockholm, Sweden CONICET, Paleomagnetic Laboratory, Department of Geology, RA, 1428 Buenos Aires, Argentina
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Palabras clave: | glacial varve; palaeomagnetism; Quaternary; virtual geomagnetic pole; Argentina, Patagonia, Alto Rio Mayo valley |
Año: | 1990
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Volumen: | 61
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Número: | 3-4
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Página de inicio: | 230
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Página de fin: | 237
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DOI: |
http://dx.doi.org/10.1016/0031-9201(90)90107-9 |
Título revista: | Physics of the Earth and Planetary Interiors
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Título revista abreviado: | Phys. Earth Planet. Inter.
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ISSN: | 00319201
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319201_v61_n3-4_p230_Sylwan |
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Citas:
---------- APA ----------
Sylwan, C.A. & Beraza, L.A.
(1990)
. Paleomagnetic record from glacial varves in Alto Río Mayo, Patagonia, Argentina. Physics of the Earth and Planetary Interiors, 61(3-4), 230-237.
http://dx.doi.org/10.1016/0031-9201(90)90107-9---------- CHICAGO ----------
Sylwan, C.A., Beraza, L.A.
"Paleomagnetic record from glacial varves in Alto Río Mayo, Patagonia, Argentina"
. Physics of the Earth and Planetary Interiors 61, no. 3-4
(1990) : 230-237.
http://dx.doi.org/10.1016/0031-9201(90)90107-9---------- MLA ----------
Sylwan, C.A., Beraza, L.A.
"Paleomagnetic record from glacial varves in Alto Río Mayo, Patagonia, Argentina"
. Physics of the Earth and Planetary Interiors, vol. 61, no. 3-4, 1990, pp. 230-237.
http://dx.doi.org/10.1016/0031-9201(90)90107-9---------- VANCOUVER ----------
Sylwan, C.A., Beraza, L.A. Paleomagnetic record from glacial varves in Alto Río Mayo, Patagonia, Argentina. Phys. Earth Planet. Inter. 1990;61(3-4):230-237.
http://dx.doi.org/10.1016/0031-9201(90)90107-9