Records of the Geological Survey of India, Volume 123, Part 2The Survey, 1990 - 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 197
... Gondwana rocks is found to be narrowed down towards the south - eastern part of the mapped area . The Lower Gondwana lithic packet in this area starts with the Talchir Formation which constitute mainly of finely laminated khaki - brown ...
... Gondwana rocks is found to be narrowed down towards the south - eastern part of the mapped area . The Lower Gondwana lithic packet in this area starts with the Talchir Formation which constitute mainly of finely laminated khaki - brown ...
Page 222
... Gondwana sediments resting unconformably over the Precambrian basement and often seen with faulted boundary with the ... Gondwana rock for- mations that rests over the Proterozoic basement . The Lower Gondwana sediments comprise Talchir ...
... Gondwana sediments resting unconformably over the Precambrian basement and often seen with faulted boundary with the ... Gondwana rock for- mations that rests over the Proterozoic basement . The Lower Gondwana sediments comprise Talchir ...
Page 234
... GONDWANA BASINS SCALE Km 10 5 0 10 20 30 40 50 ка BOKARO 400 RAMGARH COAL CONTENT ( Values in % in respect of total thickness of Barakar strata ) ISOPACH & ISO - THICKNESS LINE ( Value in metre ) 840 ' MAP SHOWING THICKNESS VARIATION ...
... GONDWANA BASINS SCALE Km 10 5 0 10 20 30 40 50 ка BOKARO 400 RAMGARH COAL CONTENT ( Values in % in respect of total thickness of Barakar strata ) ISOPACH & ISO - THICKNESS LINE ( Value in metre ) 840 ' MAP SHOWING THICKNESS VARIATION ...
Contents
Geochronology and Isotope Geology Division 1833 | 18 |
Central Petrological Laboratories 4450 | 44 |
Central Geophysics Division 5168 | 50 |
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aeromagnetic amphibolite AMSE Wing analysis ANDHRA PRADESH anomalies Argada bands Barakar Barakar Formation Barren Measures Formation basin Bhutan BIHAR block boreholes Calcutta Central chalcopyrite chemical clay coal seams Coal Wing copper cores correlation cruise depth developed DISTRICT dolomite dykes east eastern EXPLORATION FOR COAL fault field season geochemical GEOLOGICAL MAP Geophysics Division gneisses GODAVARI VALLEY Gondwana grade grained granite gneiss grey GROUND EVALUATION heavy mineral horizon India indicated intersected isotopic Kamthi Formation Karnataka lignite limestone located MADHYA PRADESH mafic magnetic Marine Wing metamorphic migmatites million tonnes mineralisation NW-SE occur Orissa phyllite PRADESH Code Precambrian quartz quartzite range Raniganj REGIONAL EXPLORATION revealed samples sand sandstone scale schist seam zones sector sediments seismic sequence shale sq km sulphide surface surveys TALCHIR FORMATION thickness tion toposheet trending upto VALLEY COALFIELD varying vibrocores volcanics WEST BENGAL whole rock zone