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Technischer Bericht NTB 84-22

Geophysikalisches Untersuchungsprogramm Nordschweiz Gravimetrische Messungen 81/82

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Within the frame of the geophysical investigations of the NAGRA in the northern part of Switzerland the Swiss Geophysical Commission has measured 4'954 gravity stations.

The gravity data were processed and presented as Bouguer-anomaly and residual anomaly maps. The densities used for the corrections were 2.40 and 2.67 g/cm3. The residual field showed a negative anomaly along an axis passing through Weiach and Villigen. This anomaly can be interpreted quantitatively in terms of depth of the crystalline basement.

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