Records of the Geological Survey of India, Volume 142, Part 4The Survey, 2009 - 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 3
... medium grained groundmass . At many places the gabbroic anorthosite randomly grades into anorthosite with increase of plagioclase at the expense of mafics . Petrographically , gabbroic anorthosite consists of laths of plagioclase ...
... medium grained groundmass . At many places the gabbroic anorthosite randomly grades into anorthosite with increase of plagioclase at the expense of mafics . Petrographically , gabbroic anorthosite consists of laths of plagioclase ...
Page 45
... medium grained variety is more common . At places , it shows fibrous or needle like appearance due to its intense serpentinisation . The minerals identified are forsterite , diopside , enstatite , antigorite , crysotile , and tremolite ...
... medium grained variety is more common . At places , it shows fibrous or needle like appearance due to its intense serpentinisation . The minerals identified are forsterite , diopside , enstatite , antigorite , crysotile , and tremolite ...
Page 59
... medium to coarse grained , pinkish granite up to 20.20m depth . Fresh , hard and compact granite starts from 20.20m to 20.70m . BH - 7 has been drilled in the bucket area to a depth of 11.10m . From 0.00m to 5.15m depth , slightly ...
... medium to coarse grained , pinkish granite up to 20.20m depth . Fresh , hard and compact granite starts from 20.20m to 20.70m . BH - 7 has been drilled in the bucket area to a depth of 11.10m . From 0.00m to 5.15m depth , slightly ...
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Common terms and phrases
active fault alignment amphibolite anorthosite arsenic Arunachal Pradesh Assam bands basic granulite biotite biotite gneiss charnockite clay coarse grained core logging dam axis depth DETAILED CORRIDOR MAPPING dipping DIVISION REVIEW drill East Khasi Hills exposed feldspar field season fold foliation Formation gabbroic anorthosite Geochemical Mapping geological mapping geotechnical investigation gneiss granite granulite gravity grey H.E. Project Hazard Zone Imphal Jaintia Hills district Kakching Khasi Hills district Leikai located Lower Dibang Valley mapped area Mawpyut Mayudia Meghalaya metamorphism minerals Mizoram NE-SW overburden phyllite pink granite gneiss plagioclase porphyritic porphyritic granite power house Proterozoic quartz quartzite Ri-Bhoi Riangdo river sandstone scale schist shale Shillong sillimanite silt siltstone slope stations studies surge shaft tectonic thick toposheet trend West Kameng district West Khasi West Khasi Hills इस एवं का कार्य की के को जनपद टोपोशीट सं तथा पर भूवैज्ञानिक मानचित्रण किया गया मेघालय वर्ग से हेतु है