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 187
... migmatites with the bulk being predominantly potash - felspar- rich granite gneiss , biotite ( ± amphibole ) gneiss with minor vestiges of leucocratic , sodic plagioclase - rich ( ± quartz ± am- phibole biotite alkali felspar ) plutonic ...
... migmatites with the bulk being predominantly potash - felspar- rich granite gneiss , biotite ( ± amphibole ) gneiss with minor vestiges of leucocratic , sodic plagioclase - rich ( ± quartz ± am- phibole biotite alkali felspar ) plutonic ...
Page 192
... migmatite complex with older supracrustal as- semblages ( fig . 1 ) Pre - Sakoli rocks include granite gneiss and migmatites having compositional range from tonalite / granodiorite to granite , alkali feldspar granite and peg- matite ...
... migmatite complex with older supracrustal as- semblages ( fig . 1 ) Pre - Sakoli rocks include granite gneiss and migmatites having compositional range from tonalite / granodiorite to granite , alkali feldspar granite and peg- matite ...
Page 240
... migmatites and gneisses enclose a host of mafic , ultramafic and acid volcanic rocks . The lithounits comprise mainly the metamorphites of high grade amphibolite to granulite facies of metamorphism and have been subjected to intense ...
... migmatites and gneisses enclose a host of mafic , ultramafic and acid volcanic rocks . The lithounits comprise mainly the metamorphites of high grade amphibolite to granulite facies of metamorphism and have been subjected to intense ...
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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