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pure and applied geophysics

, Volume 98, Issue 1, pp 127–138 | Cite as

Magnetic study of metabasic rocks of Gomoh (India)

  • Jagdeo Singh
  • M. Krishna Rao
Article
  • 22 Downloads

Summary

A magnetic study of metabasic dykes of pre-Cambrian age in Gomoh has been done. 9 magnetic profiles have been taken with Schmidt vertical force variometer. Direction and intensity of NRM have been determined for 25 oriented samples with an astatic magnetometer. Magnetic susceptibility of the samples has been determined. The magnetic profiles have been interpreted by considering both natural remanence and susceptibility of the rock samples. The remanent magnetic directions have two groups, one corresponding to the northern hemisphere and the other to the southern hemisphere. The corresponding latitudes of the place would then be 34°N and 42°S. It is suggested here that metamorphism of the basic rocks of this area took place during two distinct geologic epochs, one when India was in northern hemisphere and the other when in southern hemisphere, presuming that continental drift has taken place.

Keywords

India Magnetic Susceptibility Northern Hemisphere Southern Hemisphere Rock Sample 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Birkhäuser Verlag 1972

Authors and Affiliations

  • Jagdeo Singh
    • 1
  • M. Krishna Rao
    • 1
  1. 1.Department of Applied GeophysicsIndian School of MinesDhanbad(India)

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