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 19
... nature and the dark grey colour is caused by the presence of carbonaceous matter . There is general coarsening of sedi- ments upwards . Shale is the oldest member overlain by siltstone and then sandstone . The shales are thinly ...
... nature and the dark grey colour is caused by the presence of carbonaceous matter . There is general coarsening of sedi- ments upwards . Shale is the oldest member overlain by siltstone and then sandstone . The shales are thinly ...
Page 22
... nature of the top layer , can retain enough water and hence used for paddy cultivation . The Dhansiri surface which ... natural hazard processes , causing rapid environmental degradation of the area . The present geological and ...
... nature of the top layer , can retain enough water and hence used for paddy cultivation . The Dhansiri surface which ... natural hazard processes , causing rapid environmental degradation of the area . The present geological and ...
Page 47
... nature of the terrain with poor logistic facilities ( being approachable only by sorties of the Indian Air Force ) , the investigation was envisaged to be taken up in two phases , the initial phase being of a reconnoitory nature . An ...
... nature of the terrain with poor logistic facilities ( being approachable only by sorties of the Indian Air Force ) , the investigation was envisaged to be taken up in two phases , the initial phase being of a reconnoitory nature . An ...
Contents
AssamMeghalaya TripuraMizoram and ManipurNagaland | 3 |
Geological Mapping TripuraMizoram | 23 |
Geological Mapping ManipurNagaland | 29 |
Copyright | |
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Common terms and phrases
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