Records of the Geological Survey of India, Volume 128, Part 4The Survey, 1993 - 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 4
... mineralisation occurs in grey discordant quartz veins / lenses , as well as , in gneisses as dissemi- nated specks ... mineralised quartz veins usually ran- ges from a few cms to a meter ( the thickest one being 2.5m wide ) , while the ...
... mineralisation occurs in grey discordant quartz veins / lenses , as well as , in gneisses as dissemi- nated specks ... mineralised quartz veins usually ran- ges from a few cms to a meter ( the thickest one being 2.5m wide ) , while the ...
Page 43
... mineralisation . During the period under review , 5 sq km mapping ( 1 : 10,000 scale ) was carried out in Mukatung block along with collection of 57 nos . of bed rock channel / chip samples from host dolomite . In addition , in A - V ...
... mineralisation . During the period under review , 5 sq km mapping ( 1 : 10,000 scale ) was carried out in Mukatung block along with collection of 57 nos . of bed rock channel / chip samples from host dolomite . In addition , in A - V ...
Page 80
... mineralisation . The magnetic surveys brought out a linear feature in E - W direction around 700 m to 1000 m north of Kaliyani river , a part from indicating discrete faults . Further the magnetic surveys reveal that the basement is ...
... mineralisation . The magnetic surveys brought out a linear feature in E - W direction around 700 m to 1000 m north of Kaliyani river , a part from indicating discrete faults . Further the magnetic surveys reveal that the basement is ...
Contents
LIMESTONE INVESTIGATION Ops I Meghalaya | 6 |
An Overview | 17 |
Quaternary geology and geomorphological mapping of the Brahmaputra Valley | 23 |
Copyright | |
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Common terms and phrases
Aizawl AIZAWL DISTRICT arenaceous argillaceous Arunachal Pradesh Assam bands Barail Group biotite Bokabil borehole CACHAR clay coal coarse Code comprises Dauki Fault Dibang Valley Disang Group dolomite East Siang Eocene erosion excavation exposed field season fold Geoenvironmental geotechnical gneiss granite granitoids grey indicate joint KALIYANI LINEAMENT Karbi Anglong District Khasi Greenstones Khasi Hills 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 quartz veins Quaternary Ranganadi river rockmass samples sandstone scale schist sedimentary 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 Δ Δ