Late Pleistocene littoral deposits from 33° to 40°S, Argentine Republic: Blake and probable Lake Mungo events - magnetostratigraphic geochronology

Geochronological data are presented on a basis of magnetostratigraphic evidence from old lagoonal deposits and younger estuarine deposits from Irazusta Quarry (33°S and 58°W). The Virtual Geomagnetic Pole Position (VGP) recorded in the lagoonal deposits, corresponds to the Blake Event and confirms i...

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Bibliographic Details
Language:unknown
Published: 1990
Subjects:
Blake Event
Brunhes magnetic epoch
eustasy
Lake Mungo Event
littoral deposit
magnetostratigraphic geochronology
magnetostratigraphy
Pleistocene
Pleistocene (Late)
sea level
Argentina
Irazusta Quarry
Argentina (fish)
Argentine
Geomagnetic Pole
Online Access:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07490208_v6_n2_p357_Gonzalez
https://hdl.handle.net/20.500.12110/paper_07490208_v6_n2_p357_Gonzalez
Description
Summary:Geochronological data are presented on a basis of magnetostratigraphic evidence from old lagoonal deposits and younger estuarine deposits from Irazusta Quarry (33°S and 58°W). The Virtual Geomagnetic Pole Position (VGP) recorded in the lagoonal deposits, corresponds to the Blake Event and confirms its correlation with the Sangamon (Eemian) Interglacial. An "excursion', or "transition interval' of the earth's magnetic field recorded in the younger estuarine deposits, previously dated between 35 400 NP and 26 600 BP (14C ages), could indicate the Lake Mungo Event. On the other hand, littoral deposits from 38°S, dated in 30 500 BP, also recorded an "excursion' that could coincide with the Lake Mungo Event. -from Author

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