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 84
... strike of the beds varies from N75 ° W - S75 ° E to E - W with moderate to high dips ( 40 ° - 75 ° ) towards north . Studies of structural elements bear the imprints of three phases of folding movement with development of related axial ...
... strike of the beds varies from N75 ° W - S75 ° E to E - W with moderate to high dips ( 40 ° - 75 ° ) towards north . Studies of structural elements bear the imprints of three phases of folding movement with development of related axial ...
Page 85
... strike length of 400m and down dip depth of 30 m upto R.L. of 700 m . The analytical data of the core samples is awaited . PRELIMINARY INVESTIGATION FOR GRAPHITE IN DONGA AREA , CHUKHA DISTRICT , BHUTAN [ Code No. GM / 78 EI / CHQ / BHT ...
... strike length of 400m and down dip depth of 30 m upto R.L. of 700 m . The analytical data of the core samples is awaited . PRELIMINARY INVESTIGATION FOR GRAPHITE IN DONGA AREA , CHUKHA DISTRICT , BHUTAN [ Code No. GM / 78 EI / CHQ / BHT ...
Page 120
... strike length to test the copper sulphides associated with the acidic volcanics along their hanging wall contact with the mica schist . Four adjoining boreholes established copper mineralisa- tion over an effective strike length of ...
... strike length to test the copper sulphides associated with the acidic volcanics along their hanging wall contact with the mica schist . Four adjoining boreholes established copper mineralisa- tion over an effective strike length of ...
Contents
Geochronology and Isotope Geology Division 1833 | 18 |
Central Petrological Laboratories 4450 | 44 |
Central Geophysics Division 5168 | 50 |
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Common terms and phrases
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