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 63
Page 112
... structure . The only anomalous structure appears to be the northerly plunging synformal folding of the basal ( ? ) quartzite over Bonai granite in the south- west corner of the area . The anomaly being ( i ) the northerly plunge of the ...
... structure . The only anomalous structure appears to be the northerly plunging synformal folding of the basal ( ? ) quartzite over Bonai granite in the south- west corner of the area . The anomaly being ( i ) the northerly plunge of the ...
Page 36
... structures are present in the mapped areas . These include ripple marks , current bedding . flaser bedding , laminations , convolute laminations , load casts . flute casts , rib and furrow structure and ball and pillow structure . These ...
... structures are present in the mapped areas . These include ripple marks , current bedding . flaser bedding , laminations , convolute laminations , load casts . flute casts , rib and furrow structure and ball and pillow structure . These ...
Page 54
... structure which has been subsequently affected by a later phase of E - W trending saddle along the hinge area , thus cross folding the entire structure in a doubly plunging geometry . 1 Petrographic studies reveal the presence of two ...
... structure which has been subsequently affected by a later phase of E - W trending saddle along the hinge area , thus cross folding the entire structure in a doubly plunging geometry . 1 Petrographic studies reveal the presence of two ...
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