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


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.


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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. [1]
    E. L. G. Clegg,General report for 1921, Rec. Geol. Surv. Ind.54 (1923), 34.Google Scholar
  2. [2]
    N. L. Sharma andY. K. Agrawal,A note on the rapakivi structure in the epidiorite and injection gneiss of Dhanbad area, Q. J. Geol. Min. Met. Soc. Ind.22, 1 (1950), 11–13.Google Scholar
  3. [3]
    Jagdeo Singh andM. Krishna Rao,Magnetization of a metadolerite dyke in relation to its petrography, Current Science28 (April 1959), 157–158.Google Scholar
  4. [4]
    Jagdeo Singh andM. Krishna Rao,Magnetization of Metanorite dyke in Hirapur, Dhanbad, Current Science39 (August 1970), 360–361.Google Scholar
  5. [5]
    M. S. Sadashivaiah,The metamorphic rocks around the Jharia Coalfield, ISMAG9, 1 (1953).Google Scholar
  6. [6]
    Jagdeo Singh andM. Krishna Rao,A magnetic study of dolerite dyke near Amarpur, Dhanbad (Bihar), Pure and Appl. Geophys.82 (1970/V), 133–148.Google Scholar
  7. [7]
    Jagdeo Singh andM. Krishna Rao,Magnetic study of a metabasic dyke in Dhaiya, Dhanbad (Bihar), Pure and Appl. Geophys.86 (1971/III), 42–62.Google Scholar
  8. [8]
    R. N. Athavale, C. Radha Krishnamurty andP. W. Sahasrabudhe,Palaeomagnetism of some Indian rocks, Geophys. Jour.7, 3 (1963), 304-313.Google Scholar
  9. [9]
    R. K. Verma, G. Pullaiah andM. S. Bhalla,The Palaeomagnetism of hematites from Veldurti, Cuddapah basin, India, Geophys. Jour.11, 5 (1966), 505.Google Scholar
  10. [10]
    P. W. Sahasrabudhe andD. C. Mishra,Palaeomagnetism of Vindhyan rocks of India, Bull. Natl. Geophys. Res. Inst. India4, 2 (1966), 49–55.Google Scholar
  11. [11]
    V. L. S. Bhimasankaram,A preliminary investigation on the Palaeomagnetic directions of the Charnockites of Andhra Pradesh, Current Science33, 15 (1964), 465–466.Google Scholar
  12. [12]
    R. K. Verma, G. Pullaiah andI. Hasnain,Palaeomagnetic study of a dyke near Hyderabad, India, Bull. Natl. Geophys. Research Inst., India,6, 2 (1968), 79–86.Google Scholar
  13. [13]
    D. W. Strangway,Magnetic properties of diabase dikes, J. Geophys. Res.66, 9 (1961), 3021–3032.Google Scholar

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)

Personalised recommendations