Records of the Geological Survey of India, Volume 108The Survey, 1983 - 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 125
... dykes form the youngest igneous rocks of the area . The dykes are traversed by later faults . The regional foliation of the gneiss and schists is NW - SE to NNW - SSE with steep dips towards SE / SW or WSW - ESE at 45 ° to 80 ° . The ...
... dykes form the youngest igneous rocks of the area . The dykes are traversed by later faults . The regional foliation of the gneiss and schists is NW - SE to NNW - SSE with steep dips towards SE / SW or WSW - ESE at 45 ° to 80 ° . The ...
Page 129
... Dykes of two different ages mapped in the area are : ( 1 ) WNW - ESE , NNE - SSW and N - S trending dolerite dykes showing effects of thermal metamorphism ( D - 3 ) ; and ( 2 ) Swarms of lighter coloured dolerite dykes ( D - 4 ) cross ...
... Dykes of two different ages mapped in the area are : ( 1 ) WNW - ESE , NNE - SSW and N - S trending dolerite dykes showing effects of thermal metamorphism ( D - 3 ) ; and ( 2 ) Swarms of lighter coloured dolerite dykes ( D - 4 ) cross ...
Page 224
... dykes of different ages cut through the rocks of the area . The oldest among them are the microgranite , aplite and pegmatite dykes and veins which traverse the Aravallis and the Erinpura granites and are related to the granites . These ...
... dykes of different ages cut through the rocks of the area . The oldest among them are the microgranite , aplite and pegmatite dykes and veins which traverse the Aravallis and the Erinpura granites and are related to the granites . These ...
Contents
Palaeontology and Stratigraphy Division | 7 |
Planning and Training Division | 20 |
Offshore Mineral Exploration and Marine Geology Division | 27 |
Copyright | |
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alignment amphibolite Andhra Pradesh anomaly bands basalt bauxite bed rock Bihar biotite block boreholes carried chalcopyrite charnockite Circle clay collected comprising conglomerate copper cores covered Deccan Trap deposits depth dips Director DISTRICT dolerite dolomite drill holes dykes encountered exploratory exposed fault folds foliation Formation fossils foundation garnetiferous geochemical geological investigations geological mapping Geologists Jr GEOLOGY DIVISION geophysical geotechnical gneiss grade grained granite granite gneiss granulite graphite grey Group hornblende Hydel indicated intrusives Laboratory laterite limestone located logged magnetite mica schist migmatite million tonnes mineralisation minerals nala NW-SE occur Orissa pegmatite phyllite pits plane power house Project proposed pyrite pyrrhotite quartz quartz veins quartzite Quaternary Rajasthan Region river rock types samples sand sandstone Sarvashri scale schist seams sediments sequence shales shear zone Shri Singh Sinha soil spillway sq km strike length studies sulphide surveys terrace thick traverse trending tunnel upto valley varies