Physics
Scientific paper
Dec 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pepi...49..304i&link_type=abstract
Physics of the Earth and Planetary Interiors, Volume 49, Issue 3-4, p. 304-313.
Physics
5
Scientific paper
Magnetotelluric soundings made in the central North Island of New Zealand over the last 20 years have been reanalysed, together with more recent soundings, in an attempt to detect any electrical conductivity contrast associated with a known boundary in other geophysical properties. `Invariant' apparent resistivity curves from 11 sites in all have been compared and curves which appear to be representative of the different regions have been selected. One-dimensional modelling has led to the identification of a good conductor at lower crustal or upper mantle depths in the northwest of the North Island. No such conductor is identified in the south and east. Modelling of a single site in the Taupo Volcanic Zone has led to the first indication yet obtained of a deeper conductor beneath the geothermal region.
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