Summary: Geol. Mag. 140 (4), 2003, pp. 443­451. c 2003 Cambridge University Press 443
DOI: 10.1017/S0016756803008082 Printed in the United Kingdom
The Early Carboniferous Magerøy dykes, northern Norway:
palaeomagnetism and palaeogeography
R. J. ROBERTS*, T. H. TORSVIK, T. B. ANDERSEN§ & E. F. REHNSTR ¨OM§¶
*School of Geosciences, Wits University, Private Bag 3, WITS, 2050, South Africa
Academy of Sciences and Statoil, c/o Geodynamic Centre, Geological Survey of Norway, Leiv Eirikssonsvei 39,
N-7491 Trondheim; and Institute for Petroleum Technology and Applied Geophysics, NTNU,
N-7491 Trondheim, Norway
§Department of Geology, University of Oslo, P.O. Box 1047 Blindern, N-0316 Oslo, Norway
¶Department of Geology, Lund University, S¨olvegaten 13, S-223 62 Sweden
(Received 10 December 2002; accepted 15 May 2003)
Abstract ­ Palaeomagnetic data from the 337 Ma Magerøy dykes (northern Norway) are of
exceptionally high quality, and a positive contact test along with an existing regional result from
the Silurian Honningsv°ag Igneous Suite attests to a primary Early Carboniferous magnetic signature.
The palaeomagnetic pole (S14.8
, E320.1
, dp/dm = 4.4/8.6
) is the first Early Carboniferous pole
from Baltica, and implies that northernmost Norway­Greenland, the Barents Sea and Svalbard were

Source: Andersen, Torgeir Bjørge - Centre for Physics of Geological Processes & Department of Geosciences, Universitetet i Oslo
Torsvik, Trond Helge - Sentrum for Geodynamikk, Norges Geologiske Undersøkelse

Collections: Geosciences