Records of the Geological Survey of India, Volume 128, 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 39
... schist and garnetiferous mica schist . In addition thin bands of quartzite , carbonaceous schist and impersistent calcareous bands are also present . Small sized intrusives of amphibolite and granite occur locally . The Sela Group of ...
... schist and garnetiferous mica schist . In addition thin bands of quartzite , carbonaceous schist and impersistent calcareous bands are also present . Small sized intrusives of amphibolite and granite occur locally . The Sela Group of ...
Page 43
... schist Sericite quartzite / quartz schist The lithounits have a generalised strike of NNE - SSW to NE - SW but at places change its orientation to E - W , with dip varying from 10 ° to 48 ° northerly . The metasedimentary rocks have ...
... schist Sericite quartzite / quartz schist The lithounits have a generalised strike of NNE - SSW to NE - SW but at places change its orientation to E - W , with dip varying from 10 ° to 48 ° northerly . The metasedimentary rocks have ...
Page 46
... Schists are also a dominent unit of the older metamorphics and consist of fine grained biotite schist , mica schist , with flattened discs of aggregate of quartz pebbles and felspathic schist . Thinly bedded quartzite , occurs as ...
... Schists are also a dominent unit of the older metamorphics and consist of fine grained biotite schist , mica schist , with flattened discs of aggregate of quartz pebbles and felspathic schist . Thinly bedded quartzite , occurs as ...
Contents
LIMESTONE INVESTIGATION Ops I Meghalaya | 6 |
An Overview | 17 |
Quaternary geology and geomorphological mapping of the Brahmaputra Valley | 23 |
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Common terms and phrases
Aizawl AIZAWL DISTRICT arenaceous argillaceous Arunachal Pradesh Assam bands Barail Group Bhuban Formation biotite Bokabil borehole CACHAR clay coal Code comprises Dauki Fault Dibang Valley Disang Group DIVISION An Overview dolomite East Siang Eocene erosion excavation exposed field season fold Geoenvironmental geotechnical gneiss granite granitoids grey indicate JAINTIA HILLS DISTRICT joint KALIYANI LINEAMENT Karbi Anglong District Khasi Greenstones Kopili Kumar limestone Litang lithostratigraphy lithounits located medium grained Meghalaya mineral mineralisation Mizoram molybdenite Mukatung Nagaland NE-SW North Eastern Region occur overlain pegmatitic power house prone areas Quaternary Ranganadi river rockmass samples sandstone scale schist sediments Sela Group sequence shale shear Shella Formation Shillong Siang District Sibsagar siltstone slope soil sq.km structure Surma Surma Group Survey of India Sylhet synclinal systematic geological mapping tectonic Tertiary thick TINSUKIA DISTRICT tion Tipam Group toposheet traverse trend TRIPURA tunnel ultramafic Unconformity West Kameng district zone