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MAGNETO‐TELLURIC MEASUREMENTS IN THE NORTH GERMAN BASIN *
Author(s) -
VOZOFF K.,
SWIFT C. M.
Publication year - 1968
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.1968.tb01815.x
Subject(s) - geology , basement , geophysics , anomaly (physics) , magnetotellurics , seismology , electrical resistivity and conductivity , civil engineering , engineering , physics , electrical engineering , condensed matter physics
Magneto‐telluric measurements were carried out at a group of eight sites, from Braunschweig to Lübeck, to determine the resistivity values associated with the North German conductivity anomaly. The data were analyzed for scalar and tensor apparent resistivities over the period range 5–2000 seconds. The results in general indicate very conductive (˜I Ω‐m) sediments overlying a resistive basement which is strongly lineated. Interpreted basement depth (˜6 km) is compatible with published seismic refraction data. Principal conductivity axes in the basement appear to be directly related to trends of salt domes and major troughs. A major change in axis direction occurs near the center of the North German anomaly.