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 77
... block , a lean zone of lower grade mineralisation ( 0.30 to 0.68 % Cu over widths of 0.10 to 0.35 m ) has been traced for a strike length of 750 m by drilling . Based on geophysical anomalies , drilling has con- firmed the northern ...
... block , a lean zone of lower grade mineralisation ( 0.30 to 0.68 % Cu over widths of 0.10 to 0.35 m ) has been traced for a strike length of 750 m by drilling . Based on geophysical anomalies , drilling has con- firmed the northern ...
Page 104
... Block by block estimation based upon aver- ages from drive - face samples , could be somewhat improved by weighting the cross - cut samples rep- resenting the two mutually perpendicular attitudes FREQUENCY 70- 50+ GRADE THICKNESS 30- 10 ...
... Block by block estimation based upon aver- ages from drive - face samples , could be somewhat improved by weighting the cross - cut samples rep- resenting the two mutually perpendicular attitudes FREQUENCY 70- 50+ GRADE THICKNESS 30- 10 ...
Page 107
... block estima- tion in both dimensions of the strike Reef in Hutti Gold mine , is large ( + ) for block estimations but is uniform over both directions . This how- ever , does not deter the estimations since in the blocks with dimensions ...
... block estima- tion in both dimensions of the strike Reef in Hutti Gold mine , is large ( + ) for block estimations but is uniform over both directions . This how- ever , does not deter the estimations since in the blocks with dimensions ...
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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Common terms and phrases
anhydrite antiform Aravalli range axial planes bands Barotiya and Sendra Barotiya Group 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 F₁ F₂ F₂ folds formation Geol geophysical gneiss gold grade granite gravity grey ground water halite Haryana hinge Hutti Ingaldhalu iron isoclinal Jodhpur Krishna river 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 S₁ S₂ samples sandstone schist schist belt schistosity sediments Sendra Group sequence shear zone Singhbhum strand plain stratigraphic Strike Reef structures sulphide Supergroup Surv synform tectonic thickness tion tonnes trend Tuff values variogram Vasudev volcanics western