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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Results 1-3 of 28
Page 1
... indicate the values of Pt as 50 ppb to less than 5 ppb . In Sela - Jang area of West Kameng district , study was taken up for possible metallogenic occurrences in Oligo - Miocene granitoids . In the samples , presence of secondary ...
... indicate the values of Pt as 50 ppb to less than 5 ppb . In Sela - Jang area of West Kameng district , study was taken up for possible metallogenic occurrences in Oligo - Miocene granitoids . In the samples , presence of secondary ...
Page 38
... indicated by fluourescence under U.V. light . Trace element studies of the above five smaples indicate W content in the range of 120-710 ppm with Sn and Mo less than 20 ppm and 5 ppm respectively . Presence of tin and tungsten is not ...
... indicated by fluourescence under U.V. light . Trace element studies of the above five smaples indicate W content in the range of 120-710 ppm with Sn and Mo less than 20 ppm and 5 ppm respectively . Presence of tin and tungsten is not ...
Page 46
... indicate ' W ' content as 235 , 400 , 710 , 530 , and 120 ppm respectively with ' Sn ' and ' Mo ' / 20 and / 5 ppm respectively . Emission spectographic analysis of three other samples by the Chemical Laboratory CHQ , Calcutta , indicates ...
... indicate ' W ' content as 235 , 400 , 710 , 530 , and 120 ppm respectively with ' Sn ' and ' Mo ' / 20 and / 5 ppm respectively . Emission spectographic analysis of three other samples by the Chemical Laboratory CHQ , Calcutta , indicates ...
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