Records of the Geological Survey of India, Volume 124, Part 1The Survey, 1999 - 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 126
... quartz veins , was con- ducted in 1989-90 F.S. On the basis of geological operations conducted earlier , it has been possible to delineate around 75 quartz veins ranging in length from a few metre to a maximum of about 175 m and widths ...
... quartz veins , was con- ducted in 1989-90 F.S. On the basis of geological operations conducted earlier , it has been possible to delineate around 75 quartz veins ranging in length from a few metre to a maximum of about 175 m and widths ...
Page 215
... quartz and microcline , respectively . The secondary minerals are calcite , epidote and sphene . Meta- rhyolite shows phyllitic , schistose , banded and foliated fabric . Mineralogically they consist of quartz , plagioclase , calcite as ...
... quartz and microcline , respectively . The secondary minerals are calcite , epidote and sphene . Meta- rhyolite shows phyllitic , schistose , banded and foliated fabric . Mineralogically they consist of quartz , plagioclase , calcite as ...
Page 222
... quartz veins and quartz ankerite bodies associated with quartz - sericite schist / chlorite schist and sheared granite appear to be auriferous . The " Quartz vein zone " is found to extend further north over a strike length of two ...
... quartz veins and quartz ankerite bodies associated with quartz - sericite schist / chlorite schist and sheared granite appear to be auriferous . The " Quartz vein zone " is found to extend further north over a strike length of two ...
Contents
AIRBORNE MINERAL SURVEYS EXPLORATION WING 28 | 28 |
MARINE WING 4757 | 47 |
CENTRAL REGION 5889 | 58 |
Copyright | |
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alluvium amphibolite analysis Andhra Pradesh anomaly associated Asstt bands basalt base metal basin bed rock Bihar biotite block boreholes carried chalcopyrite charnockite clay coal seams coalfield Construction stage core covering deposits depth Director Geologist district Code DIVISION Headquarters drilling dykes excavation exploration exposed Formation foundation geochemical geological investigation geological mapping Geologist Jr geophysical Geophysicist geotechnical investigation gneiss gold Gondwana grained granite granite gneiss granitoids Group holes indicated km long Kumar limestone line km located logging migmatite mineral mineralisation occurs Orissa pegmatite phyllite power house Pradesh Precambrian project envisages construction quartz quartz veins quartzite Quaternary Rajasthan Raniganj river rock types samples were collected sand sandstone scale schist schist belt sediments shale shear zone Shri A. K. Singhbhum spillway sq km sq km area stage geotechnical investigation strike length studies sulphide Supergroup surface surveys thick tion Toposheet traverse trending tunnel upto volcanics West Bengal