Records of the Geological Survey of India, Volume 131, Parts 5-6The 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 82
... quartz- sercite schist , quartz prophyry , metarhyolite , metabasalt , metagabbro , banded magnetite / haematite , quartzite , dolomitic , limestone and argillite - greywacke suite of rocks . These are later intruded by basic dykes and ...
... quartz- sercite schist , quartz prophyry , metarhyolite , metabasalt , metagabbro , banded magnetite / haematite , quartzite , dolomitic , limestone and argillite - greywacke suite of rocks . These are later intruded by basic dykes and ...
Page 235
... quartz grains show slight to moderate undulose extinction . At places thin lenses of recrystallised mosaic of quartz or recrystallised quartz stringers are present . Often stretched and strongly undulose ribbonised quartz also occur ...
... quartz grains show slight to moderate undulose extinction . At places thin lenses of recrystallised mosaic of quartz or recrystallised quartz stringers are present . Often stretched and strongly undulose ribbonised quartz also occur ...
Page 238
... Quartz grains show size range from 0.10 to 0.80 mm while quartz in wall rock and adjoining zones shows size range from 0.003 to 0.01 mm . TEXTURE Quartz in all auriferous lodes under microscope is aligned , stretched , and shows ribbon ...
... Quartz grains show size range from 0.10 to 0.80 mm while quartz in wall rock and adjoining zones shows size range from 0.003 to 0.01 mm . TEXTURE Quartz in all auriferous lodes under microscope is aligned , stretched , and shows ribbon ...
Contents
ANDHRA PRADESH | 1 |
KARNATAKA AND GOA | 71 |
GEOTECHNICAL INVESTIGATIONS | 144 |
Copyright | |
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amphibolite ANANTAPUR DISTRICT ANDHRA PRADESH anomaly arsenopyrite auriferous bands basalt basin bed rock biotite block borehole carried charnockite chert clay Cuddapah Deccan Trap depth dimensional stone DISTRICT dolerite drilling emplaced excavation exposed fault field season folds foliation Formation gabbro geochemical GEOLOGICAL MAP geophysical gneiss gneissic gold mineralisation Gondwana grained granite granulite gravity grey grouting indicated intersected intrusives joints Karnataka Kerala kimberlite laterite lineament located lode MADHYA PRADESH magnetic Maharashtra metabasalt metamorphism migmatite mineral mineralised zone Nagpur NE-SW NNW-SSE NW-SE occurs pegmatite phyllite pink pyrite quarries quartz quartz veins quartzite Quaternary regional river samples sandstone Sausar Group scale schist schist belt shale shear zone slope soil spillway sq km strike length structure studies sulphide surveys TAMIL NADU tectonic thickness toposheet traverse trench trending tuff tunnel upto volcanic weathered width एवं का की के क्षेत्र मी में से हेतु है