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
... Surma Group overlies the Barail Group of rocks with an unconformity marked by a bed of conglomerate which is more pronounced with larger clasts . However , the occurrence of this conglomerate is not uniform throughout and is often found ...
... Surma Group overlies the Barail Group of rocks with an unconformity marked by a bed of conglomerate which is more pronounced with larger clasts . However , the occurrence of this conglomerate is not uniform throughout and is often found ...
Page 87
... Surma Group with a small patch of Dupitila Group in the south . The Surma Group is comprising of Middle and Upper Bhuban Formations which are respectively argillaceous and arenaceous in nature and also of argillaceous Bokabil Formation ...
... Surma Group with a small patch of Dupitila Group in the south . The Surma Group is comprising of Middle and Upper Bhuban Formations which are respectively argillaceous and arenaceous in nature and also of argillaceous Bokabil Formation ...
Page 91
... Surma Group constituting the Neogene sequence is exposed in the western margin of the area . Characterised by alternation of sandstone , shale , siltstone sequence , the Surma Group is represented by Lower Bhuban Formation , overlying ...
... Surma Group constituting the Neogene sequence is exposed in the western margin of the area . Characterised by alternation of sandstone , shale , siltstone sequence , the Surma Group is represented by Lower Bhuban Formation , overlying ...
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