Records of the Geological Survey of India, Volume 128, Parts 3-5Government of India, 1993 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 89
... dykes transect the area along N50 ° W - S50 ° E , NW - SE and N15 ° E - S15 ° W directions . The N50 ° W - S50 ° E trending dykes are more than 8 kms in length and are distinctly exposed between Battala- halli in the north and Kadathur ...
... dykes transect the area along N50 ° W - S50 ° E , NW - SE and N15 ° E - S15 ° W directions . The N50 ° W - S50 ° E trending dykes are more than 8 kms in length and are distinctly exposed between Battala- halli in the north and Kadathur ...
Page 93
... dykes of dolerite / gabbro and occasional pyro- xenite . There are two sets of dykes viz . , NW - SE & NE - SW . The former appears to be older as these are found offset by NE - SW dykes within the gneisses . The younger acidic phase is ...
... dykes of dolerite / gabbro and occasional pyro- xenite . There are two sets of dykes viz . , NW - SE & NE - SW . The former appears to be older as these are found offset by NE - SW dykes within the gneisses . The younger acidic phase is ...
Page 97
... dykes of basic rocks represented by gabbro - dolerite and pyroxenite dykes . WNW - ESE trending dykes are promi- nent in the area , many of which are traceable for several kilometers along strike and are sheared and fractured by the NE ...
... dykes of basic rocks represented by gabbro - dolerite and pyroxenite dykes . WNW - ESE trending dykes are promi- nent in the area , many of which are traceable for several kilometers along strike and are sheared and fractured by the NE ...
Contents
Coastal studies and Neotectonics | 5 |
Chhotonagpur Gneiss East | 12 |
Investigation for copper and associated mineralisation | 18 |
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Common terms and phrases
alignment amphibolite Andaman Andhra Pradesh apatite bands basemetal basin Bihar biotite block boreholes carbonatite charnockite chlorite clay conglomerate covered depth dips district dolerite drilling dykes Eastern excavation exposed fault field season fold foliation Formation fractures gabbro geochemical geological mapping geophysical GEOTECHNICAL INVESTIGATION gneiss gneissic gold mineralisation Gondwana grade grained granite granite gneiss granulite grey Group of rocks INDEX indicated intersected intrusives joints Karnataka kimberlite laterite limestone lineaments lithounits located magnetic magnetite migmatite mineral NE-SW NW-SE occur Orissa pegmatite phyllite power house Project proposed pyrite quartz quartz veins quartzite Quaternary regional reservoir river rock types samples sandstone scale schist schist belt schistose sedimentary shale shear zone Singhbhum slope soil spillway sq km STAGE GEOTECHNICAL INVESTIGATION stream sediment strike length structures sulphide Tamil Nadu thick tion toposheet traverse trench trending tunnel ultramafic upto valley volcanics West Bengal