Open AccessPalaeomagnetism of the Great Whin Sill
Author(s) -
Creer K. M.,
Irving E.,
Nairn A. E. M.
Publication year - 1959
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1959.tb05802.x
Subject(s) - geology , paleomagnetism , longitude , latitude , sill , permian , magnetization , geodesy , magnetic declination , paleontology , geophysics , earth's magnetic field , physics , magnetic field , petrology , structural basin , quantum mechanics
Summary The Great Whin Sill, which was intruded in Upper Carboniferous to Lower Permian times, has been sampled at 36 sites in Northumberland and Durham. It was found to be magnetically stable, the site mean direction of magnetization being 187°·8–4°·9 and the mean pole position lying in latitude 37°·3 N longitude 168°·9 E. The distribution of the mean directions of magnetization at these sites is not circular but oval, with the variation in the direction of the palaeomagnetic longitude about twice that in the direction of palaeomagnetic latitudes. However the poles calculated from the site mean directions of magnetization have a circular distribution, and this observation leads to proposal of a method of calculating the errors associated with the palaeomagnetic pole positions.