Palaeomagnetic correlation of the Acraman impact structure and the Late Proterozoic Bunyeroo ejecta horizon, South Australia

Palaeomagnetic data for meltrock from the Acraman impact structure, South Australia, indicate a stable magnetization and a virtual geomagnetic pole that is in close agreement with the palaeomagnetic pole for the Late Proterozoic (˜ 600 Ma) Bunyeroo Formation in the Adelaide Geosyncline. The palaeoma...

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Bibliographic Details
Published in:Australian Journal of Earth Sciences
Main Authors: Schmidt, P. W., Williams, G. E.
Format: Article in Journal/Newspaper
Language:English
Published: 1991
Subjects:
Acraman impact structure
Adelaide Geosyncline
Bunyeroo ejecta horizon
Bunyeroo Formation
Gawler Range Volcanics
Late Proterozoic palaeomagnetism
Meteorite impact
Geomagnetic Pole
Online Access:https://researchers.mq.edu.au/en/publications/b8f60359-5406-4594-85d4-64af13b5ac54
https://doi.org/10.1080/08120099108727972
http://www.scopus.com/inward/record.url?scp=0026307766&partnerID=8YFLogxK
Description
Summary:Palaeomagnetic data for meltrock from the Acraman impact structure, South Australia, indicate a stable magnetization and a virtual geomagnetic pole that is in close agreement with the palaeomagnetic pole for the Late Proterozoic (˜ 600 Ma) Bunyeroo Formation in the Adelaide Geosyncline. The palaeomagnetic data are therefore consistent with the correlation of the Acraman impact event and deposition of the widespread impact ejecta horizon in the Bunyeroo Formation.

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