Records of the Geological Survey of India, Volume 122, Parts 2-4Geological Survey of India, 1987 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 53
... magnetic survey was taken up ( a five year programme ) in parts of the area bounded between lat . 22 ° N and 23 ° N and long . 85 ° E and 87 ° E ( degree sheet nos . 73F and 73J ) to prepare comprehensive gravity and magnetic maps of ...
... magnetic survey was taken up ( a five year programme ) in parts of the area bounded between lat . 22 ° N and 23 ° N and long . 85 ° E and 87 ° E ( degree sheet nos . 73F and 73J ) to prepare comprehensive gravity and magnetic maps of ...
Page 83
... magnetic contours with few point E. M. anomalies and one Grade - III intercept . Analysis of magnetic signatures identified 17 magnetic lows ( 2710 to 2994 gammas ) and 15 magnetic highs ( 3040-3506 gammas ) . Ground evaluation could ...
... magnetic contours with few point E. M. anomalies and one Grade - III intercept . Analysis of magnetic signatures identified 17 magnetic lows ( 2710 to 2994 gammas ) and 15 magnetic highs ( 3040-3506 gammas ) . Ground evaluation could ...
Page 89
... magnetic picture of the area shows two contrasting types of magnetic patterns ; a crowded high intensity magnetic zone in the schist belt area and a rather flat with occassional linear anomalies in the gneissic area . The high intensity ...
... magnetic picture of the area shows two contrasting types of magnetic patterns ; a crowded high intensity magnetic zone in the schist belt area and a rather flat with occassional linear anomalies in the gneissic area . The high intensity ...
Contents
CENTRAL HEADQUARTERS 179 | 1 |
Geological Survey of India | 4 |
AIRBORNE MINERAL SURVEY AND EXPLORATION WING 80104 | 80 |
Copyright | |
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amphibolite AMSE Wing analysis Andaman anomalies assemblage bands Barakar Barakar Formation Barren Measures basin belt Bihar biotite block boreholes Calcutta clay coal seams Coal Wing COALFIELD Construction stage geotechnical cores correlation deposits depth district Division-II drilling dykes Eastern Engineering Geology evaluation exploration fault Feasibility stage folds geochemical geological mapping Geology Division geophysical geotechnical investigation Ghosh gneiss Gondwana grained granite granite gneiss grey Group heavy minerals horizon indicated Irrigation LANDSAT limestone lineaments located magnetic metamorphic mica migmatites mineralisation NW-SE occur Orissa pegmatite phyllite PRADESH quartz quartzite Raniganj Raniganj Formation regional river sand sandstone scale schist seam zones sector sediments shale shear zone Shillong sillimanite Singhbhum slope Special Investigation spillway sq km stage geotechnical investigation Stratigraphy strike length structure surface Survey of India thickness toposheet traverses trending Upper upto valley varies veins volcanics West Bengal