Records of the Geological Survey of India, Volume 130, 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 32
... joints cannot be ruled out . Rock mass is closely dissected by a number of joint sets and thus result in wedge failure and require proper supports by way of rock bolting etc. The presence of shear zone / weak zones at certain reaches of ...
... joints cannot be ruled out . Rock mass is closely dissected by a number of joint sets and thus result in wedge failure and require proper supports by way of rock bolting etc. The presence of shear zone / weak zones at certain reaches of ...
Page 34
... joints . ( b ) The ground water movement is toward east and south- east with 60-80 gradient of water -table , which follows roughly the dips of the Sylhet limestone and Kopili shale / sandstone . ( c ) The combined minimum discharge ...
... joints . ( b ) The ground water movement is toward east and south- east with 60-80 gradient of water -table , which follows roughly the dips of the Sylhet limestone and Kopili shale / sandstone . ( c ) The combined minimum discharge ...
Page 39
... joints are present in these outcrops . Prima acie , geotechnically this site appears to be feasible for ocating diversion structure . The proposed power channel will pass through red soil . The southern bank of this channel is steep and ...
... joints are present in these outcrops . Prima acie , geotechnically this site appears to be feasible for ocating diversion structure . The proposed power channel will pass through red soil . The southern bank of this channel is steep and ...
Contents
Foreword | 1 |
PROJECT2 LIMESTONE MEGHALAYA | 7 |
Regional geoenvironmental appraisal of Meghalaya | 9 |
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abutment amphibolite Archaean ARUNACHAL PRADESH Assam axial plane axis bands basemetal bed rock Bhuban Formation biotite block bore holes boreholes carried channel Chu valley clay comprises conglomerate construction Crystalline Complex depth dimension stones dips dolerite drilled dyke EAST KHASI HILLS evaluation excavation exposed folds foliation Gandhigram Formation GDP-LOG geoenvironmental GEOTECHNICAL INVESTIGATION gneisses granite gneiss granitoids grey Karbi Anglong district KHASI HILLS DISTRICT Kopili lamprophyre leakage limestone lithounits located Mahadek Formation Mawsynram medium grained Meghalaya metasedimentary metasediments micaceous Middle Bhuban migmatites mineralisation mylonitic Nagaon overburden phyllite power house proposed Proterozoic quartzite Quaternary reservoir river samples sandstone scale schist sediments Sela Group sequence shale Shillong Shillong Group Siang district siltstone slope soil spillway sq km sq km area sq.km structure studies Subansiri suitable Surma Group surveys Systematic geological mapping Tertiary thick Thrust Tilung Tipam Toposheet trending Tuting Crystallines Unconformity Upper Bhuban upstream WEST के