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 168
... fold the axial plane of which extends in NNE - SSW to NE - SW direction . It is moderately open and assymetrical fold , which shows overturn- ing effect to west . The ( F ) fold plunges gently ( at about 25 ° to 40 ' ) N 15 ° E to N 40 ...
... fold the axial plane of which extends in NNE - SSW to NE - SW direction . It is moderately open and assymetrical fold , which shows overturn- ing effect to west . The ( F ) fold plunges gently ( at about 25 ° to 40 ' ) N 15 ° E to N 40 ...
Page 217
... fold closure is observed , where amphibolite has been conspicu- ously folded along a ENE - WSW axis plunging to- wards west at 30 ° . The area has been affected by three phases of folding episodes . The first phase of folding ( F ) is ...
... fold closure is observed , where amphibolite has been conspicu- ously folded along a ENE - WSW axis plunging to- wards west at 30 ° . The area has been affected by three phases of folding episodes . The first phase of folding ( F ) is ...
Page 122
... folded into tightly appressed isoclinal folds with axial plane trending N65 ° E - S65 ° W with the fold axis plung - ing 45 ° towards SW . At the closure portion of the fold in BIF , axial plane cleavages have developed parallel to the ...
... folded into tightly appressed isoclinal folds with axial plane trending N65 ° E - S65 ° W with the fold axis plung - ing 45 ° towards SW . At the closure portion of the fold in BIF , axial plane cleavages have developed parallel to the ...
Contents
Coastal studies and Neotectonics | 5 |
Chhotonagpur Gneiss East | 12 |
Investigation for copper and associated mineralisation | 18 |
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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