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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Page 9
... Sandstone , Vemavaram Shale and Pavulur Sandstone , and correlated them with the Golla- palli Sandstone , Raghavapuram Shale and Tirupathi Sandstone , respectively , of Krishna- Godavari coastal tract . The present work in Guntur ...
... Sandstone , Vemavaram Shale and Pavulur Sandstone , and correlated them with the Golla- palli Sandstone , Raghavapuram Shale and Tirupathi Sandstone , respectively , of Krishna- Godavari coastal tract . The present work in Guntur ...
Page 12
... sandstone units are laterally impersistent . Petrographic examination of sandstone reveals that the constitutents , in decreasing order of abundance , are quartz , rock fragments , feldspars and opaques . Shales are laminated ; white to ...
... sandstone units are laterally impersistent . Petrographic examination of sandstone reveals that the constitutents , in decreasing order of abundance , are quartz , rock fragments , feldspars and opaques . Shales are laminated ; white to ...
Page 176
... sandstone assemblage belonging to Lower Gondwana , is encountered upto a depth of 55.30 m . This rock assemblage is indurated , mylonitised and sheared and resembles quartzite at places . It shows high degree of fractures with dip of 30 ...
... sandstone assemblage belonging to Lower Gondwana , is encountered upto a depth of 55.30 m . This rock assemblage is indurated , mylonitised and sheared and resembles quartzite at places . It shows high degree of fractures with dip of 30 ...
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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