NEW METHODS OF ELECTRICAL EXPLORATION IN SIBERIA 



205 



£ 400 



800 

 co' 



400 



^ 1200 



l' 2 000 



2800 



Vyatkino Structure 



Sea level 



Fig. 7. Results of geophysical studies along the profile Viatkino-Krotovka. 1 — 5 lines; 

 2 — depth lines; 3 — supposed surface of supporting electrical high-resistance level; 

 4 — surface of seismical supporting levels. 



The geoelectrical section, denoting the behaviour of the electrically highly 

 resistant horizon level is given in the lower part of the drawing. It follows 

 from the data given that the results of the interpretation of electrical probes 

 make it possible to decide on the tectonics of the Mesozoic deposits. 



Similar results were obtained on other structures revealed by seismical 

 work in the region between the townships Viatkino and Vikulovo (Dmitriev- 

 skaia and Krutikhinskaia structures) and also on certain areas of the Tobolsk 





 -400 



-800 



-1200 



r -1600 



-2000 



A2-84 AZ-83 AZ-82 AZ-Bl A2-80 AZ-79 AZ-78 Sea level 



Krotovskaio structure 



Fig. 8. Two-way curves of an azimuthal probe over an upheaval of a support high- 

 resistance level. 1 — centres of two-way electrical probes; 2 — supposed surface of 

 highly resistant reflecting horizons; 3 — right-hand branches of AZ Western curves; 

 4 — right-hand branches of Eastern AZ curves. 



