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 22
... lower Tipam Sandstone Formation and Girujan Clay For- mation . The Tipam Sandstone Formation comprises mainly medium ot coarse grained micaceous sandstone , gritty sandstone , clay and shalepebble - conglomerate . The sandstone may be ...
... lower Tipam Sandstone Formation and Girujan Clay For- mation . The Tipam Sandstone Formation comprises mainly medium ot coarse grained micaceous sandstone , gritty sandstone , clay and shalepebble - conglomerate . The sandstone may be ...
Page 27
... Lower Bhuban Formation respectively . The stratigraphic succesion as established in the area is as below : SURMA GROUP Lower Bhuban For- mation : Highly rhythmic sequence of sandstone , siltstone and shale with thick prominent bands of ...
... Lower Bhuban Formation respectively . The stratigraphic succesion as established in the area is as below : SURMA GROUP Lower Bhuban For- mation : Highly rhythmic sequence of sandstone , siltstone and shale with thick prominent bands of ...
Page 79
... Lower Unit Grey , black , fine grained with small scanty - foraminifers . Shale intercalations are also present . In overall assemblage , Family Nummulitidae bredominates , of which genus Nummulites overwhelms in perentage as well as in ...
... Lower Unit Grey , black , fine grained with small scanty - foraminifers . Shale intercalations are also present . In overall assemblage , Family Nummulitidae bredominates , of which genus Nummulites overwhelms in perentage as well as in ...
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