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 131
... gneiss along with younger granites . The Chungthang sub - group include garnet- muscovite - biotite schist and quartzites interbanded with quartz- feldspar - biotite gneiss . Graphite schists are also present . Horizons of calc ...
... gneiss along with younger granites . The Chungthang sub - group include garnet- muscovite - biotite schist and quartzites interbanded with quartz- feldspar - biotite gneiss . Graphite schists are also present . Horizons of calc ...
Page 247
... gneissic rocks occurring in the area are mainly migmatite gneiss , grey biotite gneiss , granite gneiss and quartzo - feldspathic gneiss . The granite at Desani is the southern continuation of Kadur - Banavar granite and includes medium ...
... gneissic rocks occurring in the area are mainly migmatite gneiss , grey biotite gneiss , granite gneiss and quartzo - feldspathic gneiss . The granite at Desani is the southern continuation of Kadur - Banavar granite and includes medium ...
Page 311
... Gneissic Complex : Granite gneiss , augen gneiss , migmatite , hornblende gneiss , biotite gneiss , quartzo - feldspathic gneiss and bands of metabasic rocks together constitute the basement rocks of the area . Hornblende gneiss ...
... Gneissic Complex : Granite gneiss , augen gneiss , migmatite , hornblende gneiss , biotite gneiss , quartzo - feldspathic gneiss and bands of metabasic rocks together constitute the basement rocks of the area . Hornblende gneiss ...
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