A Miocene polarity transition recorded on St. Helena, South Atlantic
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Autoren
Organisationseinheiten
Externe Organisationseinheiten
- University of Liverpool
- ZAMG
- Levelwood, St. Helena Island
Abstract
Paleomagnetic sampling was undertaken in locations with successions of lava ows on St. Helena in April 2019. Two parallel pro_les recorded transitional _eld directions of a reversal from reversed to normal polarity. The lavas ows are part of the SW Upper Shield and have an age of _9.0 Ma. Determinations of paleointensity and 39Ar/40Ar dating are currently under work. The detailed characterization of the polarity transition will allow for Earth's magnetic _eld modelling and provides
a better understanding of the South Atlantic Magnetic Anomaly.
a better understanding of the South Atlantic Magnetic Anomaly.
Details
Originalsprache | Englisch |
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Seiten (von - bis) | 14 |
Seitenumfang | 1 |
Fachzeitschrift | COBS Journal |
Jahrgang | 2020 |
Ausgabenummer | 6 |
Status | Veröffentlicht - 2021 |