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 15
... mineral ( ? ) in addition to pyrite has been noted . Within pyroxenite , chunks of isotropic , non - magnetic , dark grey metallic mineral have been recorded of which chemical analysis results are awaited . It occurs as disseminations ...
... mineral ( ? ) in addition to pyrite has been noted . Within pyroxenite , chunks of isotropic , non - magnetic , dark grey metallic mineral have been recorded of which chemical analysis results are awaited . It occurs as disseminations ...
Page 39
... minerals embedded in a matrix of carbonate . The sandy shale in thin section shows poor sorting , sub angular to sub rounded grains of quartz ( fractured ) , mica and clay minerals floating in a matrix of carbonate , Shale shows clasts ...
... minerals embedded in a matrix of carbonate . The sandy shale in thin section shows poor sorting , sub angular to sub rounded grains of quartz ( fractured ) , mica and clay minerals floating in a matrix of carbonate , Shale shows clasts ...
Page 45
... minerals . The general trend of mylonitic fabric is N30 ° W - S30 ° E , dipping 20 ° -30 ° toward NE . The development of secondary chlorite along the foliation planes is its characteristic feature . Leucocratic gneiss grades into ...
... minerals . The general trend of mylonitic fabric is N30 ° W - S30 ° E , dipping 20 ° -30 ° toward NE . The development of secondary chlorite along the foliation planes is its characteristic feature . Leucocratic gneiss grades into ...
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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