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 77
... Nummulites - Assilina assemblage zone and Alveolina - Nummulites - Assilina Assemblage Zone could be identified . The detailed work is still in progress . STUDY OF UPPER TERTIARY BIOTA AND ITS CORRELATION ( Code 77 GSI Rec . Vol . 128 ...
... Nummulites - Assilina assemblage zone and Alveolina - Nummulites - Assilina Assemblage Zone could be identified . The detailed work is still in progress . STUDY OF UPPER TERTIARY BIOTA AND ITS CORRELATION ( Code 77 GSI Rec . Vol . 128 ...
Page 78
... Nummulites obtusus , N. atacicus , N. lahirii , Rotalia trochidiformis , ? Lockhartia sp . The assemblage indicate of lower to lower part of middle Eocene age . In the similar set up near Garu , Sinha and Mishra ( 1984 ) recorded the ...
... Nummulites obtusus , N. atacicus , N. lahirii , Rotalia trochidiformis , ? Lockhartia sp . The assemblage indicate of lower to lower part of middle Eocene age . In the similar set up near Garu , Sinha and Mishra ( 1984 ) recorded the ...
Page 79
... Nummulites overwhelms in perentage as well as in numbers . But at a few places , Discocyclinidae percentage seems greater than Num- mulitidae . Both genus are mostly large in size , widely distributed and highly evolved . In general ...
... Nummulites overwhelms in perentage as well as in numbers . But at a few places , Discocyclinidae percentage seems greater than Num- mulitidae . Both genus are mostly large in size , widely distributed and highly evolved . In general ...
Contents
LIMESTONE INVESTIGATION Ops I Meghalaya | 6 |
An Overview | 17 |
Quaternary geology and geomorphological mapping of the Brahmaputra Valley | 23 |
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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