Geomagnetic variations and electrical conductivity structure in south-western Australia

Details Geomagnetic variations and electrical conductivity structure in south-western Australia Geomagnetic variations and electrical conductivity structure in south-western Australia

Oct 1967

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1967pepi....1...24e&link_type=abstract

Physics of the Earth and Planetary Interiors, Volume 1, Issue 1, p. 24-34.

Physics

46

Scientific paper

Magnetic field variations have been recorded in digital form at ten stations on a traverse from the Nullabor Plain to Perth, across the pre-Cambrian shield of south-western Australia. The records are Fourier analysed. It is shown that a ``transfer function'' can be obtained for each station, relating the anomalous vertical magnetic field variations to the horizontal variations. The stations can thus be compared even when their records are not simultaneous. The coast effect for the shield area is found to persist about 21/2 times further inland than do the coast effects for California and eastern Australia. Therefore the electrical conductivity is less under the shield than elsewhere. This conclusion suggests that the temperature gradient is less, and agrees with the low heat flow values found for the shield area. The west coast is anomalous because the coast effect initially increases going inland. We conclude that the coastal area west of the Darling fault is not part of the continental shield but has a larger electrical conductivity. An attempt is made to correct for the coast effect in south-western Australia and the residual transfer functions are discussed in relation to the geological structure of the area. Present address: Department of Physics, Dalhousie University, Halifax, N.S., Canada.

Affiliated with

Also associated with

No associations

Rating

Geomagnetic variations and electrical conductivity structure in south-western Australia does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Geomagnetic variations and electrical conductivity structure in south-western Australia, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geomagnetic variations and electrical conductivity structure in south-western Australia will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1752988