Open AccessThe Palaeomagnetism of the Foyers Plutonic Complex, Inverness‐shire
Author(s) -
Kneen Sylvia J.
Publication year - 1973
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.1973.tb06519.x
Subject(s) - devonian , paleomagnetism , geology , magnetization , schist , pluton , geochemistry , petrology , geophysics , paleontology , physics , magnetic field , tectonics , quantum mechanics , metamorphic rock
Summary A palaeomagnetic study of the Foyers Plutonic Complex, and its associated country rocks, has been made. From a total of 330 samples from 80 sites, 23 sites gave stable directions of magnetization after a/c cleaning. An α 95 rejection criterion of 20° was applied to the directions of magnetization. The mean direction obtained was D = 13.6° I =−5.8° ( K = 4, α 95 = 17.6) giving a corresponding palaeomagnetic pole at 29° N 160° E and an oval of confidence dP = 8.9°, dm = 17.6°. Application of the conglomerate test to the overlying basal Devonian breccia, and a contact test to the surrounding schists, imply that the direction of magnetization obtained from the granite is original, and the pole position obtained is valid for Upper Silurian‐Lower Devonian times.