Records of the Geological Survey of India, Volume 125, 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 100
... values in soil samples ( 111 Nos . ) are Cu 10-175 ppm ; Sn : 210-50 ppm . There are no significant values of Pb ( < 10-50 ppm ) . Two linear zones of about 350-500 m length at the contact between quartzite ( Chorbaoli ) and schist ...
... values in soil samples ( 111 Nos . ) are Cu 10-175 ppm ; Sn : 210-50 ppm . There are no significant values of Pb ( < 10-50 ppm ) . Two linear zones of about 350-500 m length at the contact between quartzite ( Chorbaoli ) and schist ...
Page 118
... values in rhyolite is 25ppm excepting one value of 15 ppm . The channel samples ( bedrock ) collected along the Gurwandi nala from a 53m wide zone ( 75 samples ) have given Au - values from 0.1 to 1.5 ppm ( Av . 0.11 ppm ) . A 2.5m wide ...
... values in rhyolite is 25ppm excepting one value of 15 ppm . The channel samples ( bedrock ) collected along the Gurwandi nala from a 53m wide zone ( 75 samples ) have given Au - values from 0.1 to 1.5 ppm ( Av . 0.11 ppm ) . A 2.5m wide ...
Page 235
... values . Out of 196 stream sediment samples analysed by AAS method , 91.32 % samples gave Au value of less than 50 ppb , 5.6 % samples indicated gold values ranging from 50 ppb to 100 ppb and only 3.06 % samples indicated gold values ...
... values . Out of 196 stream sediment samples analysed by AAS method , 91.32 % samples gave Au value of less than 50 ppb , 5.6 % samples indicated gold values ranging from 50 ppb to 100 ppb and only 3.06 % samples indicated gold values ...
Contents
Introduction | 11 |
Southern Region 291362 | 13 |
Geochronology and Isotope Geology Division | 16 |
Copyright | |
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Alluvium amphibolite analysis Andhra Pradesh anomaly associated Asstt bands basalt base metal basin belt Bihar biotite Block boreholes Calcutta Director carried chalcopyrite charnockite clay coal comprising Construction stage geotechnical core covered Deccan Trap delineated deposits depth district DIVISION Headquarters Divn drilling dykes earth dam exploration exposed field season Formation foundation geochemical geological mapping Geologist Jr geophysical geotechnical investigation gneiss gold Gondwana grade granite gneiss granitoids gravity Group indicated investigation was taken Kumar limestone lineaments located logging Madhya Pradesh magnetic Maharashtra migmatite mineral Nagpur Orissa pegmatite phyllite power house Pradesh Code programme proposed quartz quartz veins quartzite Quaternary Rajasthan REGIONAL GEOLOGY DIVISION rhyolite river samples were collected sandstone scale schist seams sediments shear zone Shri Singh slope spillway sq km stage geotechnical investigation stratigraphic strike length studies sulphide mineralisation Supergroup surveys thick Toposheet traverse trending tunnel ultramafic upto volcanics