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 51
... composition and rankwise in the northern part of the basin . Total reactive constituents ( vitrinite + exinite + semivitrinite ) appear to vary across the basin being slightly highly in southern part High exinite content ( upto 22 ...
... composition and rankwise in the northern part of the basin . Total reactive constituents ( vitrinite + exinite + semivitrinite ) appear to vary across the basin being slightly highly in southern part High exinite content ( upto 22 ...
Page 81
... composition or any individual mineral and ( 2 ) their variation in composition is similar to that of a residual magma with advancing fractional crystallisation . Progressive increase of FeO / MgO ratio and decrease of MgO and FeO with ...
... composition or any individual mineral and ( 2 ) their variation in composition is similar to that of a residual magma with advancing fractional crystallisation . Progressive increase of FeO / MgO ratio and decrease of MgO and FeO with ...
Page 83
... Composition of Olivine Sl . No. Sample No. a b C β ± .002 A ° ± 0.03 ° Olivine Composition ( from do pacing ) 130 1 DA - 31 0.584 8.892 5.240 104.81 2 CD - 4 9.710 8.892 5.236 104.12 Fog Fa 3 DB - 11 9.602 8.916 5.240 103.85 4 DA - 40 ...
... Composition of Olivine Sl . No. Sample No. a b C β ± .002 A ° ± 0.03 ° Olivine Composition ( from do pacing ) 130 1 DA - 31 0.584 8.892 5.240 104.81 2 CD - 4 9.710 8.892 5.236 104.12 Fog Fa 3 DB - 11 9.602 8.916 5.240 103.85 4 DA - 40 ...
Contents
CENTRAL HEADQUARTERS | 6 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING | 143 |
Overview of the Deputy Director General | 211 |
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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