Assumed dipolar geomagnetic field

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ARTICLES Proterozoic low orbital obliquity and axial-dipolar geomagnetic field from evaporite palaeolatitudes

Palaeomagnetism of climatically sensitive sedimentary rock types, such as glacial deposits and evaporites, can test the uniformitarianism of ancient geomagnetic fields and palaeoclimate zones. Proterozoic glacial deposits laid down in near-equatorial palaeomagnetic latitudes can be explained by ‘snowball Earth’ episodes, high orbital obliquity or markedly non-uniformitarian geomagnetic fields. ...

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ژورنال

عنوان ژورنال: Nature

سال: 1976

ISSN: 0028-0836,1476-4687

DOI: 10.1038/262643a0