Records of the Geological Survey of India, Volume 131, Part 4The Survey, 1996 - 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 24
... core of the major anticline . It comprises predominantly grey to brownish , bluish - greenish grey , thinly laminated , micaceous siltstone and shale with interbands of fine grained , khaki to brown sandstone . Shale is splintery . Well ...
... core of the major anticline . It comprises predominantly grey to brownish , bluish - greenish grey , thinly laminated , micaceous siltstone and shale with interbands of fine grained , khaki to brown sandstone . Shale is splintery . Well ...
Page 38
... core length of 227.5 m . These boreholes have been drilled on the right abutment to know the depth of overburden . In all the boreholes the core recovery was very poor and RQD is almost negligible , which indicates that the rock is very ...
... core length of 227.5 m . These boreholes have been drilled on the right abutment to know the depth of overburden . In all the boreholes the core recovery was very poor and RQD is almost negligible , which indicates that the rock is very ...
Page 40
... Core recovery in limestone is 80-100 % , in sandstone 35- 90 % and in granite - gneiss 14-100 % . The partial loss ... core recovery zone from 15.30 m to 22.80 m and conglomerates from 22.80 to 39.60 m depth . Another prominent no - core ...
... Core recovery in limestone is 80-100 % , in sandstone 35- 90 % and in granite - gneiss 14-100 % . The partial loss ... core recovery zone from 15.30 m to 22.80 m and conglomerates from 22.80 to 39.60 m depth . Another prominent no - core ...
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Common terms and phrases
alignment Alluvium ANTICLINE Archaean Arunachal Pradesh Assam AXIAL TRACE bands basin bedrock BHUBAN FORMATION biotite Bokabil boreholes boulders Chhimtuipui conglomerates construction dam axis Dawki depth Dibang Valley district dimension stone dips drilled East Khasi Hills erosion excavation exposed fault folds foliation Gandhigram Formation Garo Hills geoenvironmental GEOTECHNICAL APPRAISAL GEOTECHNICAL EVALUATION GEOTECHNICAL INVESTIGATION Ghosh gneiss gold and basemetal granite granitoid grey Hailakandi districts Hunli investigation for gold Jaintia Hills district kg/cm² KHASI HILLS DISTRICT Kopili Formation Lakadong landslide left abutment limestone located Longlai valley Lunglei districts magnetic VF Manipur marble medium grained Meghalaya mineral mineralisation Mizoram Multipurpose Project Nagaland OVERVIEW Papumpare penstock power channel proposed dam quartzite Quaternary resource right abutment right bank river road rocks sandstone scale schist sedimentary shear zone Shillong Group siltstone Siwalik slope spillway sq km sq km area structure studies suitable synclines Systematic geological mapping Tertiary thick Tilung Tipam TOPOSHEET trending upstream WEST KHASI