Precambrian geomagnetic field - An overview

Toni Henri Kristian Veikkolainen, Lauri Pesonen, Kimmo Korhonen

Forskningsoutput: Kapitel i bok/rapport/konferenshandlingKonferensbidragVetenskaplig

Sammanfattning

The Precambrian geomagnetic field plays a key role in various aspects of Earth Sciences, most prominently in studies of the development of the core, associated geodynamo processes, thermal history and paleogeography of our planet. Here we provide an overview of its content and time variations using data from “PALEOMAGIA”, a new open-access resource of Precambrian paleomagnetic information. Having applied inclination frequency analysis, reversal asymmetries and frequencies, intensity data and relative contributions of symmetric
and antisymmetric field families, we have concluded that the Precambrian geomagnetic field was close to that expected from the GAD (Geocentric Axial Dipole) model, with the smallest departure in the Neoarchean.
Originalspråkengelska
Titel på gästpublikation2014 Nordic Supercontinent Workshop
Antal sidor4
Utgivningsdatum2014
Sidor31-35
StatusPublicerad - 2014
MoE-publikationstypB3 Ej refererad artikel i konferenshandlingar
Evenemang2014 Nordic Supercontinent Workshop - Hurdal, Norge
Varaktighet: 13 okt 201419 okt 2014

Vetenskapsgrenar

  • 1171 Geovetenskaper

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