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Preliminary paleomagnetic results of a terminal pleistocene/holocene record from northeastern Buenos Aires province (Argentina)

Hugo G. Nami

Puni tekst: engleski, pdf (900 KB) str. 119-141 preuzimanja: 207* citiraj
APA 6th Edition
Nami, H.G. (2006). Preliminary paleomagnetic results of a terminal pleistocene/holocene record from northeastern Buenos Aires province (Argentina). Geofizika, 23 (2), 119-141. Preuzeto s https://hrcak.srce.hr/16725
MLA 8th Edition
Nami, Hugo G.. "Preliminary paleomagnetic results of a terminal pleistocene/holocene record from northeastern Buenos Aires province (Argentina)." Geofizika, vol. 23, br. 2, 2006, str. 119-141. https://hrcak.srce.hr/16725. Citirano 17.05.2021.
Chicago 17th Edition
Nami, Hugo G.. "Preliminary paleomagnetic results of a terminal pleistocene/holocene record from northeastern Buenos Aires province (Argentina)." Geofizika 23, br. 2 (2006): 119-141. https://hrcak.srce.hr/16725
Harvard
Nami, H.G. (2006). 'Preliminary paleomagnetic results of a terminal pleistocene/holocene record from northeastern Buenos Aires province (Argentina)', Geofizika, 23(2), str. 119-141. Preuzeto s: https://hrcak.srce.hr/16725 (Datum pristupa: 17.05.2021.)
Vancouver
Nami HG. Preliminary paleomagnetic results of a terminal pleistocene/holocene record from northeastern Buenos Aires province (Argentina). Geofizika [Internet]. 2006 [pristupljeno 17.05.2021.];23(2):119-141. Dostupno na: https://hrcak.srce.hr/16725
IEEE
H.G. Nami, "Preliminary paleomagnetic results of a terminal pleistocene/holocene record from northeastern Buenos Aires province (Argentina)", Geofizika, vol.23, br. 2, str. 119-141, 2006. [Online]. Dostupno na: https://hrcak.srce.hr/16725. [Citirano: 17.05.2021.]

Sažetak
Paleomagnetic data from the Lomas del Mirador (34° 39.29’ S, 58° 32.17’ W) sedimentary section in northeastern Buenos Aires province (Argentina) comprises 149 oriented samples that record a significant but gentle gradual change in the geomagnetic field at the terminal Pleistocene and Holocene. Based on rock magnetic and detrital remanence experiments, the deposit seems to be a good recorder of the past geomagnetic field behavior. The characteristic remanent magnetization (ChRM), determined by progressive AF demagnetization, shows that the sections registered normal and inter­mediate polarities during the terminal Pleistocene/Holocene. The PSV is cha­racterized by a large variation with ~ 80° difference in inclination in both sections and a significant but gentle westward shift in the declination in the upper part. A similar trend was observed in the paleomagnetic record re­gis­tered in other sections from northeastern Argentina. This remarkably large PSV, especially the inclination record, became a reliable chronostra­ti­gra­phical marker for latest Pleistocene/Holocene sedimentary deposits in north­eastern Buenos Aires. VGPs resemble those registered during terminal Pleis­to­cene and Holocene in the southern cone of South America. Palaeomagnetic poles for the sections other contemporaneous sites from northeastern Ar­gen­tina fall some ~ 5–15° away from the Earth’s rotation’s axis

Ključne riječi
Paleomagnetism; paleosecular variation; terminal Pleistocene; Ho­lo­cene; South America; Argentina

Hrčak ID: 16725

URI
https://hrcak.srce.hr/16725

[hrvatski]

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