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 17
... Group Unclassified Eocene Jaintia Group Pre- cambri - an Kopili Formation Predominantly arenaceous se- quence with rare calcareous shale . Ferruginous sandstone alternat- ing with khaki green shale and rare greyish - white nummulitic ...
... Group Unclassified Eocene Jaintia Group Pre- cambri - an Kopili Formation Predominantly arenaceous se- quence with rare calcareous shale . Ferruginous sandstone alternat- ing with khaki green shale and rare greyish - white nummulitic ...
Page 19
... 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 ...
... 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 91
... Group and arenaceous Barail Group of rocks occupy major part of the area . The Disang Group of rocks are confined to the valleys while the Barails form high rising sandstone hills . The Surma Group constituting the Neogene sequence is ...
... Group and arenaceous Barail Group of rocks occupy major part of the area . The Disang Group of rocks are confined to the valleys while the Barails form high rising sandstone hills . The Surma Group constituting the Neogene sequence is ...
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