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 20
... places lensoid in character and exhibit rippled bed form . The Upper Bhuban Formation has an approximately 1200 m . exposed thickness and covers more than 60 % of the area mapped . The sandstone , shale / siltstone ratio varies from 60 ...
... places lensoid in character and exhibit rippled bed form . The Upper Bhuban Formation has an approximately 1200 m . exposed thickness and covers more than 60 % of the area mapped . The sandstone , shale / siltstone ratio varies from 60 ...
Page 25
... places associated with shales , are minor clay bands . The Middle Siwalik is represented by sandstone with ... places to know the depth persistent and lateral continuity of the clay horizons . About 85 clay samples were collected from ...
... places associated with shales , are minor clay bands . The Middle Siwalik is represented by sandstone with ... places to know the depth persistent and lateral continuity of the clay horizons . About 85 clay samples were collected from ...
Page 42
... place in the area . Present drainage configuration is a result of 1950 earthquake . The river has been continuously shifting to west and eroding the banks to the tune of 200 m at places . The drainage on the left bank is . however ...
... place in the area . Present drainage configuration is a result of 1950 earthquake . The river has been continuously shifting to west and eroding the banks to the tune of 200 m at places . The drainage on the left bank is . however ...
Contents
CENTRAL HEADQUARTERS 179 | 1 |
Geological Survey of India | 4 |
AIRBORNE MINERAL SURVEY AND EXPLORATION WING 80104 | 80 |
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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