Records of the Geological Survey of India, Volume 124, Part 2The Survey, 1991 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 70
... depth estimates are indicated in the en- closed figure 1. It is evident from the figure , that the area is covered by a magnetic block of considerable intensity , extending , on an average , to a depth of 18 kms . A part of this block ...
... depth estimates are indicated in the en- closed figure 1. It is evident from the figure , that the area is covered by a magnetic block of considerable intensity , extending , on an average , to a depth of 18 kms . A part of this block ...
Page 225
... depth extensions . This could not be accomplished due to rough sea conditions . An area of 200 sq km bounded by N. latitudes 17 ° 15 ' to 17 ° 28.5 ' and E. longitudes 82 ° 54 ' to 83 ° 05 ' off Pudimadaka coast in Andhra Pradesh was ...
... depth extensions . This could not be accomplished due to rough sea conditions . An area of 200 sq km bounded by N. latitudes 17 ° 15 ' to 17 ° 28.5 ' and E. longitudes 82 ° 54 ' to 83 ° 05 ' off Pudimadaka coast in Andhra Pradesh was ...
Page 249
... depth levels of 54 m and 455 m , while , in Pachwara sub - basin , a maximum number of six coal seam zones , ranging from 2 m to 19.7 m thickness , were intersected between depth levels of 7 m and 240 m . These are Barakar coals ...
... depth levels of 54 m and 455 m , while , in Pachwara sub - basin , a maximum number of six coal seam zones , ranging from 2 m to 19.7 m thickness , were intersected between depth levels of 7 m and 240 m . These are Barakar coals ...
Contents
CENTRAL HEADQUARTERS | 6 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING | 143 |
Overview of the Deputy Director General | 211 |
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Common terms and phrases
aeromagnetic amphibolite AMSE Wing analysis Andhra Pradesh anomalies assemblage bands Barakar Formation BARREN MEASURES FORMATION basement basin Bhutan block boreholes carbonaceous Central chalcopyrite clay coal seams Coal Wing coarse grained Code copper mineralisation core Cruise deposits depth range DISTRICT drilling east eastern ENE-WSW evaluation EXPLORATION FOR COAL faults felsic field season fold geochemical GEOLOGICAL MAP gneisses Gondwana grade granite gravity grey Group heavy mineral ilmenite INDEX India indicate intersected investigation Kamthi Formation limestone lineament MADHYA PRADESH magnetic magnetite medium metamorphism migmatite million tonnes NW-SE occur ORISSA phyllite potential PRECAMBRIAN pyrite quartz quartzite Raniganj Raniganj Formation Regional exploration rocks Sakoli samples sand sandstone scale schist schist belt seabed seam zones sector sediments shale siltstone silty Singhbhum soil sq km Stratigraphy strike length sulphide surface surveys Talchir Formation tectonic thickness tion Toposheet trending tuff upto VALLEY COALFIELD varies volcanics zone