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
... siltstone is invareably present above the con- glomerate . Overlying the limestone is an alternating sequence of shale , siltstone and mudstone with fine grained oxidised sandstone at the top . The argillaceous sequence displays dif ...
... siltstone is invareably present above the con- glomerate . Overlying the limestone is an alternating sequence of shale , siltstone and mudstone with fine grained oxidised sandstone at the top . The argillaceous sequence displays dif ...
Page 24
... siltstone with subordinate bands of khaki- grey , fine to medium , friable to massive , cross bedded , sandstones . Large scale cross bedding is seen at many places . Gradational Contact ( inferred ) - Bung Tlang Formation ( Upper ...
... siltstone with subordinate bands of khaki- grey , fine to medium , friable to massive , cross bedded , sandstones . Large scale cross bedding is seen at many places . Gradational Contact ( inferred ) - Bung Tlang Formation ( Upper ...
Page 30
... siltstone with silt and silty clay . -Unconformity- Dominantly argillaceous units con- sisting of shale , siltstone and silty Ishale with interbeds of sandstone and carbonaceous shale . Gradational Contact- Massive , multistoreyed ...
... siltstone with silt and silty clay . -Unconformity- Dominantly argillaceous units con- sisting of shale , siltstone and silty Ishale with interbeds of sandstone and carbonaceous shale . Gradational Contact- Massive , multistoreyed ...
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