Records of the Geological Survey of India, Volume 126, Parts 4-6The Survey, 1993 - 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 22
... intrusive into the Shillong Group . Post - tectonic basic intrusives in the form of dykes and sills have intruded the gneisses and younger granitoids . Petrologically the basic intrusive is diabase in composition . Ultrabasic intrusives ...
... intrusive into the Shillong Group . Post - tectonic basic intrusives in the form of dykes and sills have intruded the gneisses and younger granitoids . Petrologically the basic intrusive is diabase in composition . Ultrabasic intrusives ...
Page 43
... intrusive ( II ) --- Intrusive contact --- Ferruginous sandstone and shales --Unconformity ------- Intrusive contact Intrusive contact Intrusive contact Basic Vol- canics ( II ) Acid Quartz veins Basic intrusive ( I ) ...
... intrusive ( II ) --- Intrusive contact --- Ferruginous sandstone and shales --Unconformity ------- Intrusive contact Intrusive contact Intrusive contact Basic Vol- canics ( II ) Acid Quartz veins Basic intrusive ( I ) ...
Page 83
... intrusive bodies showing cold intrusive contacts and narrow differentiating zones have been mapped . It seems that the secondary intrusive granite bodies occurring along the contact of the Betul granitoids with the older metamorphite ...
... intrusive bodies showing cold intrusive contacts and narrow differentiating zones have been mapped . It seems that the secondary intrusive granite bodies occurring along the contact of the Betul granitoids with the older metamorphite ...
Contents
Arunachal Pradesh | 1 |
Mineral InvestigationII Arunachal Pradesh | 9 |
Geology of parts of Karbi Anglong North Cachar Hills and Nowgaon | 15 |
Copyright | |
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acid amphibolite ANDHRA PRADESH bands basalt biotite biotite gneiss block boreholes charnockite chert complex dam axis Deccan Trap depth DISTRICT dolerite dolomite drilling enclaves ENE-WSW Engineering Geology Division exposed feldspar field season flows folds foliation Formation gabbro geochemical GEOLOGICAL MAP Geophysical GEOTECHNICAL INVESTIGATIONS gneiss gneissic gold grained granite granite gneiss granitoids granulite grey Group hornblende INDEX indicated intrusives joints KARNATAKA kimberlite limestone lineament located mafic magnetic magnetite Maharashtra metabasalt migmatite mineral mineralised zone Nagpur Narmada NE-SW NNE-SSW NNW-SSE NW-SE occur pegmatite pink granite plagioclase porphyritic power house PRADESH Code pyrite pyroxene pyroxenite quartz quartz veins quartzite Regional Geology Division reservoir rhyolite river Sakoli samples sandstone scale schist schist belt schistose sediments shale shear zone slope soil Sp Sp spillway sq km strike length structures studies sulphide surveys syenite thick toposheet traverses trench trending tunnel ultramafic upto valley volcanics width Δ Δ Δ