Records of the Geological Survey of India, Volume 120, Parts 2-8government of India., 1985 - 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 89
... tonnes or more ) , may require 2 to 3 years of an investigation period , conventionally accepted as the gestation period for a large - sized iron - ore open - cast mine defined as a 4-5 million tonnes or more of production capacity p.a. ...
... tonnes or more ) , may require 2 to 3 years of an investigation period , conventionally accepted as the gestation period for a large - sized iron - ore open - cast mine defined as a 4-5 million tonnes or more of production capacity p.a. ...
Page 94
... tonnes , wherein exploratory mining shall raise the reserve rank to proved category . 5. Exploration mining excavations 200 to 300m3 in deep pits and / or adits per million tonne of proved ore reserve , in addition to drilling as above ...
... tonnes , wherein exploratory mining shall raise the reserve rank to proved category . 5. Exploration mining excavations 200 to 300m3 in deep pits and / or adits per million tonne of proved ore reserve , in addition to drilling as above ...
Page 101
... tonnes of ore rated at about 16 tonnes or so of metallic gold equivalent , by the year 1981-82 . The Hutti Group of Dharwar Supergroup forms a northwesterly inverted V of unequal lengths in either limbs in Raichur district , Karnataka ...
... tonnes of ore rated at about 16 tonnes or so of metallic gold equivalent , by the year 1981-82 . The Hutti Group of Dharwar Supergroup forms a northwesterly inverted V of unequal lengths in either limbs in Raichur district , Karnataka ...
Contents
Contents | 1 |
Stratigraphy and structure of Delhi Supergroup of rocks | 12 |
Structures in Singhbhum shear zone at and around | 27 |
Copyright | |
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anhydrite antiform Aravalli range average axial planes bands Barotiya and Sendra Barotiya Group basalts basin Bhim Group block boreholes Chaibasa channel chert Chitradurga chlorite clay crescentic lamina deformation Delhi Delhi Supergroup deposit developed Devgarh Devgarh Group dextral Dhanjori drilling east eastern evaporites exploration F₂ folds folds F formation Geol Geological map geophysical gneiss gold grade granite gravity ground water halite Haryana hinge Hutti Ingaldhalu iron isoclinal Jodhpur laterite limb lineation lode metabasalts metamorphism migmatization mineral mineralisation minor folds Nagaur occur phase of folding planar plunge polyhalite pre-Delhi inlier pre-Delhi west Precambrian Punjab quartz quartzite Rajasthan Rajgarh Rajgarh Group Ras Marble red beds regional rocks Rohtak district samples schist schist belt schistosity sediments Sendra Group sequence shear zone Singhbhum strand plain stratigraphic Strike Reef structures sulphide Supergroup Surv Survey of India synform tectonic thickness tion trend Tuff values variogram Vasudev volcanics western