Records of the Geological Survey of India, Volume 127, Part 2The Survey, 1994 - 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 27
... granite is massive , non - foliatd , corase grained ( por- phyritic ) with megacrysts of white feldspar . The granite is biotite rich , leucocratic . Enclaves of quartzites / metasediments of various sizes were observed . Rb , Sr ...
... granite is massive , non - foliatd , corase grained ( por- phyritic ) with megacrysts of white feldspar . The granite is biotite rich , leucocratic . Enclaves of quartzites / metasediments of various sizes were observed . Rb , Sr ...
Page 28
... granite - greenstone terrain is charac- terised by an association of supracrustal volcanic - sedimentary belt , granite gneiss and post kinematic gmaite plutons . The high grade terrain comprises granulite facies rocks , minor ...
... granite - greenstone terrain is charac- terised by an association of supracrustal volcanic - sedimentary belt , granite gneiss and post kinematic gmaite plutons . The high grade terrain comprises granulite facies rocks , minor ...
Page 228
... granite into it . The above anomaly also demar- cates the extent of the Vidapanakallu intrusive granite . ( iv ) Mag K40 : The highly acidic and alkaline granites found as isolated hillocks in the gneissic and migmatitic terrain around ...
... granite into it . The above anomaly also demar- cates the extent of the Vidapanakallu intrusive granite . ( iv ) Mag K40 : The highly acidic and alkaline granites found as isolated hillocks in the gneissic and migmatitic terrain around ...
Contents
Photogeology Remote Sensing Division | 29 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING 146240 | 149 |
Overview of the Deputy Director General | 243 |
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aeromagnetic airborne amphibolite AMSE Wing analysis ANDHRA PRADESH anomalies bands Barakar Barakar Formation Barren Measures basin Bengal BHUTAN Bihar biotite block boreholes carbonaceous charnockite Chekha clay coal seams COAL WING Coalfield Code cores covered cruise depth range DISTRICT Division drilling east eastern exploration for coal faults field season fold geochemical GEOLOGICAL MAP geophysical data gneiss Gondwana granite gneiss gravity grey ground evaluation heavy mineral indicate intersected intrusives investigation isobath Kamthi LAMPROITE lamprophyres lignite lineament located MADHYA PRADESH magnetic metabasalt metamorphism migmatites million tonnes mineralisation multisensor NW-SE occur Orissa phyllite programme Proterozoic quartz quartzite Raniganj Regional exploration ridge rocks Sakoli sand sandstone scale schist seabed seam zones sector sediments sequence shale shear zones Shumar slope southern sq km strike length structural studies sub-basin sub-surface Survey of India Talchir Tamil Nadu tectonic thickness Thimphu toposheet trending upto varies