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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Results 1-3 of 74
Page 113
... Boreholes Completed . Boreholes proposed in I Phase . Boreholes proposed in II Phase One of the two boreholes proposed in the first phase of the exploration programme has been completed . Both lode I & lode II have been encountered in ...
... Boreholes Completed . Boreholes proposed in I Phase . Boreholes proposed in II Phase One of the two boreholes proposed in the first phase of the exploration programme has been completed . Both lode I & lode II have been encountered in ...
Page 121
... boreholes . The bands and lenses of coal exposed on surface have been mapped on 1 : 2,000 scale covering an area of about 0.1 sq km . From the surface and sub- surface data , two main coal hoirzons - ' A ' and B ( Plate - 1 ) have been ...
... boreholes . The bands and lenses of coal exposed on surface have been mapped on 1 : 2,000 scale covering an area of about 0.1 sq km . From the surface and sub- surface data , two main coal hoirzons - ' A ' and B ( Plate - 1 ) have been ...
Page 311
... boreholes and the extension of the Barakar coal seams including the important workable seams of the IIIA , III and IVA with thickness generally ranging between 0.95 m to 4.05 m and grade varying mainly between A to B were established ...
... boreholes and the extension of the Barakar coal seams including the important workable seams of the IIIA , III and IVA with thickness generally ranging between 0.95 m to 4.05 m and grade varying mainly between A to B were established ...
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