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 iii
... occur in the northeastern part of the area . The younger intrusives of pyroxenite , amphibolite and lamprophyre occur as composite sills and dykes . Some of the quartzite samples have analysed high SiO2 content and the rock may be ...
... occur in the northeastern part of the area . The younger intrusives of pyroxenite , amphibolite and lamprophyre occur as composite sills and dykes . Some of the quartzite samples have analysed high SiO2 content and the rock may be ...
Page 28
... occurs in considerable quantities in the Quaternary sediments in the form of flat , horizontal bodies ( at times discontinuous ) ... occur at shallow depths . Conclusions regarding the quality can be drawn only after receiving the detailed ...
... occurs in considerable quantities in the Quaternary sediments in the form of flat , horizontal bodies ( at times discontinuous ) ... occur at shallow depths . Conclusions regarding the quality can be drawn only after receiving the detailed ...
Page 33
... occurring as accessories . At places it is altered to thin veins of asbestos and talcose material . Isolated outcrops of dunite occur with harzburgite . Plagiogranite occurring as small boulders is fine to medium grained , leucocratic ...
... occurring as accessories . At places it is altered to thin veins of asbestos and talcose material . Isolated outcrops of dunite occur with harzburgite . Plagiogranite occurring as small boulders is fine to medium grained , leucocratic ...
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