Records of the Geological Survey of India, Volume 127, Part 4The Survey, 1995 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 74
... bed rock . A major portion of the area along the dam axis is covered with overburden material and bed rock is exposed only along the river banks . The area along the dam axis from R.D 0.0 to 120m , 385m to 465m is covered by talus ...
... bed rock . A major portion of the area along the dam axis is covered with overburden material and bed rock is exposed only along the river banks . The area along the dam axis from R.D 0.0 to 120m , 385m to 465m is covered by talus ...
Page 77
... bedrock at a depth of 1.8m . The deeper channel portion has been interpreted to be close to left abutment where the bed rock configuration has to be established by further drilling . At higher reaches on either bank , bedrock has not ...
... bedrock at a depth of 1.8m . The deeper channel portion has been interpreted to be close to left abutment where the bed rock configuration has to be established by further drilling . At higher reaches on either bank , bedrock has not ...
Page 82
... Bed rock is exposed on both abutments with thin cover of soil / hill wash material at higher elevation . A thick terrace is observed on the left abutment above RL 495m . Slide cracks are noticed on the right abutment at about 10m above ...
... Bed rock is exposed on both abutments with thin cover of soil / hill wash material at higher elevation . A thick terrace is observed on the left abutment above RL 495m . Slide cracks are noticed on the right abutment at about 10m above ...
Contents
AssamMeghalaya TripuraMizoram and ManipurNagaland | 3 |
Geological Mapping TripuraMizoram | 23 |
Geological Mapping ManipurNagaland | 29 |
Copyright | |
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Abor volcanics abutment Aizawl alignment amphibolite anomaly anticlines arenaceous argillaceous ARUNACHAL PRADESH Assam axial bands Barail Group bed rock Bhuban Formation block Bokabil bore holes boreholes Brahmaputra Buxa Formation Chandel districts channel chromite clay dam axis deposits depth Disang dolomite drilling East Siang East Siang district Engineering Geology excavated exposed faults field season fold geochemical geomorphological geotechnical gneiss grey Group of rocks harzburgite hill indicated investigation Jorhat limestone lithological lithounits located LUNGLEI DISTRICTS Manipur medium grained Meghalaya mineral mineralisation MIZORAM NAGALAND nala NE-SW Noa Dihing occur Older Alluvial Plain ophiolite pelagic sediments Phyllite power house Precambrian Project proposed quartz quartzite Quaternary regional right bank river Samchampi samples sandstone schist sequence shale shear Shergaon Shillong Shillong Group silt siltstone slope sq.km structures studies sulphides surface Surma Group synclines systematic geological mapping terrace Tertiary thick Tipam traverses Tripura tunnel ultramafic Umpyrtha area unconformably upto veins Yinkiong zone