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 12
... assemblage . A group of metasedimentary rocks of uncertain age , named the Devgarh Group , intervenes between the Bhim Group and the pre - Delhi . The rocks of pre - Delhi of all three domains , i.e. the western flank , the eastern ...
... assemblage . A group of metasedimentary rocks of uncertain age , named the Devgarh Group , intervenes between the Bhim Group and the pre - Delhi . The rocks of pre - Delhi of all three domains , i.e. the western flank , the eastern ...
Page 38
... assemblage of sedimentary rocks , mainly clastics with promi- nent red colouration , formed in a highly oxidising environment so that the iron present is in the form of ferric hydroxide . The term has acquired a meaning almost ...
... assemblage of sedimentary rocks , mainly clastics with promi- nent red colouration , formed in a highly oxidising environment so that the iron present is in the form of ferric hydroxide . The term has acquired a meaning almost ...
Page 73
... assemblages suggest that the rocks have suffered greenschist facies of metamorphism . The different minerals are chlorite , sericite , actinolite , palgioclase feldspar , epidote , calcite , sphene with magnetite , pyrite and pyrrhotite ...
... assemblages suggest that the rocks have suffered greenschist facies of metamorphism . The different minerals are chlorite , sericite , actinolite , palgioclase feldspar , epidote , calcite , sphene with magnetite , pyrite and pyrrhotite ...
Contents
Contents | 1 |
Stratigraphy and structure of Delhi Supergroup of rocks | 12 |
Structures in Singhbhum shear zone at and around | 27 |
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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