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 248
... collected from Mikir Hills . One sample from Dibong valley analysed 55 % forsterite . Kaolinite and gibbrite were found in two samples from West Garo Hills . Nine samples collected from Sonapahar area were found to contain sillimanite ...
... collected from Mikir Hills . One sample from Dibong valley analysed 55 % forsterite . Kaolinite and gibbrite were found in two samples from West Garo Hills . Nine samples collected from Sonapahar area were found to contain sillimanite ...
Page 273
... collected from the mineralised zone indicated the presence of pyrite , chalcopyrite , pyrrhotite and insignificant amount of sphalerite . Minor element values by spectrographic analysis are Cu - 0.72 % , Pb - 40 ppm , Zn - 30 ppm , Cd ...
... collected from the mineralised zone indicated the presence of pyrite , chalcopyrite , pyrrhotite and insignificant amount of sphalerite . Minor element values by spectrographic analysis are Cu - 0.72 % , Pb - 40 ppm , Zn - 30 ppm , Cd ...
Page 301
... collected from Gondwana formation of Andhra Pradesh ( G.Laxminarayana ) , Tamil Nadu ( Kumaraguru ) , and Madhya Pradesh ( V. Rajaiah ) . Cretaceous : Ch . Venugopal Rao submitted an identification report on samples collected by I.K. ...
... collected from Gondwana formation of Andhra Pradesh ( G.Laxminarayana ) , Tamil Nadu ( Kumaraguru ) , and Madhya Pradesh ( V. Rajaiah ) . Cretaceous : Ch . Venugopal Rao submitted an identification report on samples collected by I.K. ...
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