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
... grade into anorthositic rocks indicating a possible genetic link . The Jadoh - Nonglwai body also randomly grade into medium / coarse grained to very coarse grained variety resembling the norite of Nongstoin . It also grade into medium ...
... grade into anorthositic rocks indicating a possible genetic link . The Jadoh - Nonglwai body also randomly grade into medium / coarse grained to very coarse grained variety resembling the norite of Nongstoin . It also grade into medium ...
Page 45
... grade of metamorphism . The mineral assemblages recorded in the metasedimentaries show low grade metamorphism ( green schist facies ) and amphibolite , mafic- ultramafic rocks and gneiss / schistose rocks ( quartz ± biotite tactinolite ...
... grade of metamorphism . The mineral assemblages recorded in the metasedimentaries show low grade metamorphism ( green schist facies ) and amphibolite , mafic- ultramafic rocks and gneiss / schistose rocks ( quartz ± biotite tactinolite ...
Page 56
... grade . The exploratory drilling too has proved this aspect . Hence collapse and day lighting of HRT in the zone is apprehended at the time of excavation . The HRT in this zone passes through a geomorphic depression / valley portion ...
... grade . The exploratory drilling too has proved this aspect . Hence collapse and day lighting of HRT in the zone is apprehended at the time of excavation . The HRT in this zone passes through a geomorphic depression / valley portion ...
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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