Records of the Geological Survey of India, Volume 127, Part 2The Survey, 1992 - 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 139
... granite suits of the Thimphu Formation . These trends indicate that a normal magmatic differentiation process was operative within this suite , resulting in earlier granodioritic and later granite components . The plots in different ...
... granite suits of the Thimphu Formation . These trends indicate that a normal magmatic differentiation process was operative within this suite , resulting in earlier granodioritic and later granite components . The plots in different ...
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Common terms and phrases
aeromagnetic airborne amphibolite AMSE Wing analysis ANDHRA PRADESH anomalies bands Barakar Barakar Formation Barren Measures basement basin Bengal BHUTAN Bihar biotite block boreholes carbonaceous charnockite Chekha clay coal seams COAL WING Coalfield coarse Code cores covered cruise depth range DISTRICT Division dolomite drilling east eastern exploration for coal faults field season fold geochemical GEOLOGICAL MAP gneiss Gondwana grained 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 Talchir Tamil Nadu tectonic thickness Thimphu Thimphu Formation toposheet trending upto varies