Records of the Geological Survey of India, Volume 126, Issues 5-6Vols. 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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Results 1-3 of 87
Page 54
... grained mafic - felsic rock series , which have a gradational variation from horn- blendite to leucodiorite through hornblende diorite and diorite . · The igneous enclaves are mainly confined to mafic facies of the TGA group with sharp ...
... grained mafic - felsic rock series , which have a gradational variation from horn- blendite to leucodiorite through hornblende diorite and diorite . · The igneous enclaves are mainly confined to mafic facies of the TGA group with sharp ...
Page 80
... grained well - foliated / banded gneiss ( G1 ) Layered Mafic- Ultramafic Complex Banded magnetite / specularite - grunerite - quartzite 81 P.G.K. BHAT AND L.G. JAGANNATHAACHAR To TUMKUR GI Bolligere. Specialised thematic mapping on 1 ...
... grained well - foliated / banded gneiss ( G1 ) Layered Mafic- Ultramafic Complex Banded magnetite / specularite - grunerite - quartzite 81 P.G.K. BHAT AND L.G. JAGANNATHAACHAR To TUMKUR GI Bolligere. Specialised thematic mapping on 1 ...
Page 27
... grained , grey and ocassional- ly pink coloured either hornblende or biotite rich granitoid with a wide range in chemical composition from quartz diorite ( tonalite ) , adamallite , granodiorite to minor alkali granite . This “ suite ...
... grained , grey and ocassional- ly pink coloured either hornblende or biotite rich granitoid with a wide range in chemical composition from quartz diorite ( tonalite ) , adamallite , granodiorite to minor alkali granite . This “ suite ...
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Common terms and phrases
acid amphibolite ANDHRA PRADESH anomaly zones axis bands basalt basin biotite biotite gneiss block boreholes charnockite complex Deccan Trap deformation depth DISTRICT dolerite drilling enclaves ENE-WSW exposed feldspar field season flows folds foliation Formation gabbro geochemical GEOLOGICAL MAP Geology Division Geophysical GEOTECHNICAL INVESTIGATIONS gneiss gneissic gold grained granite granite gneiss granitoids granulite grey Group hornblende INDEX indicated intrusives joints KARNATAKA kimberlite laterite lava lineament located mafic magnetite MAHARASHTRA metabasalt migmatite mineral mineralised zone Nagpur Narmada NE-SW NNW-SSE NW-SE occur pahoehoe pegmatite pink granite plagioclase porphyritic pyrite pyroxene granulite pyroxenite quartz quartz veins quartzite Quaternary regional reservoir rhyolite river rock types Sakoli samples sandstone scale schist schist belt schistose sediments shale shear zone soil spillway sq km strike length structures studies sulphide surveys syenite TAMIL NADU thick toposheet traversed trench trending tunnel ultramafic upto valley volcanics width