Records of the Geological Survey of India, Volume 123, Part 1The Survey, 2002 - 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 92
... clay units of vary- ing thickness the clay units being thicker in the western part the average being about 60cm . Sediments in the eastern part are heavy mineral bearing fine sands , relatively free of clay intercalations , especially ...
... clay units of vary- ing thickness the clay units being thicker in the western part the average being about 60cm . Sediments in the eastern part are heavy mineral bearing fine sands , relatively free of clay intercalations , especially ...
Page 95
... clay and clay , except for the top 20 cms , down - core from seabed . In the case of the top 20 cms column , an abrupt change in facies is noted with an increase in sand content . The reverse graded nature of the sediments indicates ...
... clay and clay , except for the top 20 cms , down - core from seabed . In the case of the top 20 cms column , an abrupt change in facies is noted with an increase in sand content . The reverse graded nature of the sediments indicates ...
Page 371
... clay , sand , silt and gravel , whereas the upper level alluvium consists of clay , coarse sand and boulders of quartzite , gneisses and granites . About 12 sq km area was mapped on 1 : 25,000 scale and two types of clay were noticed at ...
... clay , sand , silt and gravel , whereas the upper level alluvium consists of clay , coarse sand and boulders of quartzite , gneisses and granites . About 12 sq km area was mapped on 1 : 25,000 scale and two types of clay were noticed at ...
Contents
CENTRAL HEADQUARTERS | 1 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING | 46 |
COAL WING | 72 |
Copyright | |
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analysed anomaly assess associated bands basalt base basic basin belt Bihar block bodies boreholes carried channel clay coal Code collected completed comprises condition construction continued core covered delineated deposits depth detailed developed Director district Division drilling dykes eastern exploration exposed field flows Formation foundation geological mapping geophysical geotechnical investigation gneiss gold grade grained granite Group Headquarters holes identified indicated intrusive irrigation length lignite limestone located lower magnetic major mineral mineralisation Nagpur objective occur Orissa Pradesh prepared present processed proposed quartz quartzite range Regional reported reservoir revealed river rock samples sand sandstone scale Scheme schist seams sediments shale shear soil spillway sq km stage strike structure suggested surface surveys taken thickness thin tion Toposheet traverses trending tunnel units upto values varies various veins West zone