Records of the Geological Survey of India, Volume 129, Parts 3-4Government of India, 1994 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
From inside the book
Results 1-3 of 41
Page 128
... fold closure is observed , where am- phibolite has been conspicuously folded along a ENE- WSE axis plunging towards west at 30 ° ( Plate- 43 ) . The area has been affected by three phases of folding deformation . The first phase of folding ...
... fold closure is observed , where am- phibolite has been conspicuously folded along a ENE- WSE axis plunging towards west at 30 ° ( Plate- 43 ) . The area has been affected by three phases of folding deformation . The first phase of folding ...
Page 142
... fold . In major part of the area , F , and F , folds are co - axial . The third fold is represented by broad warps and puckers with steep easterly or west- erly dipping axial planes . Mylonitisation , development of slip schistosity and ...
... fold . In major part of the area , F , and F , folds are co - axial . The third fold is represented by broad warps and puckers with steep easterly or west- erly dipping axial planes . Mylonitisation , development of slip schistosity and ...
Page 6
... fold . The earlier deformation is strong whereas the later deformation is weak and is of buckling type . Relation- ship between the deformation related to the shear zone , that related to fold , fault , and mafic intrusion , remains to ...
... fold . The earlier deformation is strong whereas the later deformation is weak and is of buckling type . Relation- ship between the deformation related to the shear zone , that related to fold , fault , and mafic intrusion , remains to ...
Contents
WEST BENGAL SIKKIM A N ISLANDS | 1 |
Report of investigation for rare metal mineralisation within pegmatite | 7 |
Gold | 14 |
Copyright | |
3 other sections not shown
Other editions - View all
Common terms and phrases
acid volcanics amphibolite Andaman anomaly Arunachal Pradesh Assam bands basemetal basin bed rock belt Bihar biotite block boreholes Chhotanagpur clay Code colour comprising conglomerate covered depth Division drilling dykes east eastern Engineering Geology erosion exploration exposed fault feldspar field season fold foliation Formation geochemical GEOLOGICAL MAP geophysical GEOTECHNICAL INVESTIGATION gneiss gneissic gold Gondwana grade granite granite gneiss granitoids grey Group of rocks GSI Rec Hills district identified intrusives Karbi Anglong laterite limestone lineament lithological located medium grained Meghalaya mica schist migmatites mineralisation minerals nala occurs Orissa OVERVIEW pegmatite phyllite plagioclase Proterozoic Purulia district quartz quartz veins quartzite Quaternary Region river sand sandstone scale schist sector sequence shale Shillong Shillong Group Sikkim siltstone Singhbhum slope soil spillway sq km STAGE GEOTECHNICAL INVESTIGATION stream sediment samples structure sulphide Surface SURVEY OF INDIA terrain thick Toposheet trending ultramafic upto West Bengal western