Records of the Geological Survey of India, Volume 123, Parts 7-8Government of India, 1988 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 136
... tunnel . A por- tion of the access tunnel from R. D. 759 m to 755 m has been found unstable . This section of the tunnel is occupied by a highly jointed vertical dolerite dyke . Most of the joints are coated with thin layers of chlorite ...
... tunnel . A por- tion of the access tunnel from R. D. 759 m to 755 m has been found unstable . This section of the tunnel is occupied by a highly jointed vertical dolerite dyke . Most of the joints are coated with thin layers of chlorite ...
Page 127
... tunnel length has been done . Alternate sequence of clay - shale , siltstone and sandstone bands of Murree Formation are exposed in the area and have been encountered inside the tunnel . Generally , strike of the beds is N80E - S80 W ...
... tunnel length has been done . Alternate sequence of clay - shale , siltstone and sandstone bands of Murree Formation are exposed in the area and have been encountered inside the tunnel . Generally , strike of the beds is N80E - S80 W ...
Page 128
... Tunnel was carried out between RDS . 280m and 340m from the outlet end . The tunnel has been excavated through moderatly jointed phyllitic quartzite and phyllite of Cambro - Silurian age . Shear zones varying in width from 0.30m to 0.40 ...
... Tunnel was carried out between RDS . 280m and 340m from the outlet end . The tunnel has been excavated through moderatly jointed phyllitic quartzite and phyllite of Cambro - Silurian age . Shear zones varying in width from 0.30m to 0.40 ...
Contents
GEOLOGICAL MAPPING Page 1 Highgrade sequence and associated rocks of the Sandmata Complex 1 | 1 |
Mangalwar Project 3 | 3 |
Geological mapping of the Aravalli Supergroup and the associated granitic rocks in Panchmahals district Gujarat 7 | 7 |
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Common terms and phrases
aeolian alluvial Alluvium amphibolite bands basalt basin bedrock belt biotite block boreholes calcareous CHAMOLI DISTRICT channel clay comprises conglomerate covered crystalline deposits depth dipping DISTRICT dolomite downstream dunes dykes excavation exposed fault field season flood plain flows fluvial folds foliation Formation fossils foundation grade Ganga geochemical GEOENVIRONMENTAL geological mapping Geology Division geomorphological geophysical geotechnical gneiss grained granite Granitoid grey Group HIMACHAL PRADESH Himalaya HYDEL indicated intrusive JAMMU joints KASHMIR kmĀ² Krol Ladakh limestone lineament located Mangalwar metre mineral mineralisation nala Older Alluvium pegmatite phyllite porphyritic power house Proterozoic quartz quartz veins quartzite Quaternary Rajasthan regional river rocks samples sand sandstone scale schist sediments sequence shale shear zone silt siltstone Sirohi district Siwalik skarns slate slope spillway sq.km STAGE GEOLOGICAL INVESTIGATION structural studies sulphide surface tectonic terrace thick Thrust toposheet traverse trending tunnel Udaipur district Upper upto UTTAR PRADESH valley Vindhyan volcanics