Records of the Geological Survey of India, Volume 121, Part 1The Survey, 1991 - 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 241
... values from the mineralised zones of felsic volcanic rock and at the contact of mafic and felsic volcanic rocks . A meta chert band towards south of Mallappakonda has shown some sporadic high values . P. Suthanandam and I. S. ...
... values from the mineralised zones of felsic volcanic rock and at the contact of mafic and felsic volcanic rocks . A meta chert band towards south of Mallappakonda has shown some sporadic high values . P. Suthanandam and I. S. ...
Page 386
... values . ( C ) Kokhwa - Harrahwa block : The old workings discontinuously extend over a strike length of 8.5 km . These are located in arenaceous phyllite with sheared , limonitised and brecciated quartz veins . A total of 8 nos . of ...
... values . ( C ) Kokhwa - Harrahwa block : The old workings discontinuously extend over a strike length of 8.5 km . These are located in arenaceous phyllite with sheared , limonitised and brecciated quartz veins . A total of 8 nos . of ...
Page 397
... values ranging from 0.20 g / t to 0.90 g / t . Rest of samples have shown lower values . Field work in the last phase of investigation indicates some very promising areas , such as Gulba - Balli area in Toposheet No. 43 L / 9 , where ...
... values ranging from 0.20 g / t to 0.90 g / t . Rest of samples have shown lower values . Field work in the last phase of investigation indicates some very promising areas , such as Gulba - Balli area in Toposheet No. 43 L / 9 , where ...
Contents
INTRODUCTION | 1 |
AIRBORNE MINERAL SURVEYS EXPLORATION WING | 44 |
OPERATION BIHAR | 135 |
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alignment analysis Andhra Pradesh anomaly arca assess Asstt bands basalt basin Bihar biotite block boreholes carried chalcopyrite charnockite chemical clay coal coalfield comprising Construction stage covering an area Deccan Trap delineated deposits depth district DIVISION Director DIVISION-I Divn drill cores dykes Economic Geology evaluation exploration exposed field season Formation fossils geochemical geological investigations geological mapping Geologist Jr GEOLOGY DIVISION geomorphological geophysical surveys Geophysicist geotechnical investigation Ghosh gneiss Gondwana granite granite gneiss Group indicated investigation was taken Karnataka km was covered Kumar laboratory limestone located logging magnetic Maharashtra migmatites mineral mineralisation occur Orissa pegmatite Petrology phyllite power house programme proposed quartz quartzite Quaternary Rajasthan Regional Geology river rock types S/Shri samples were collected sandstone scale schist schist belt seams sediments sequence shale Shri Singh Siwalik spillway sq km Srivastava strike length studies suggested sulphide surface thickness toposheet trending tunnel upto Uttar Pradesh