Records of the Geological Survey of India, Volume 122, Part 5The Survey, 1987 - 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 59
... veins traversing the graphite gneisses from Burugubanda and Tapasikonda - Etipalli . Geochemical surveys through bedrock , stream sediment and geobotanical sampling were carried out to find out possible strike extension between ...
... veins traversing the graphite gneisses from Burugubanda and Tapasikonda - Etipalli . Geochemical surveys through bedrock , stream sediment and geobotanical sampling were carried out to find out possible strike extension between ...
Page 74
... veins and veinlets of quartz with sulphides in altered hornblende schist and sheared Champion gneiss . Wall rock alteration is represented by biotitisation , silicification and sericitisa- tion . Pyrite and pyrrhotite are the dominant ...
... veins and veinlets of quartz with sulphides in altered hornblende schist and sheared Champion gneiss . Wall rock alteration is represented by biotitisation , silicification and sericitisa- tion . Pyrite and pyrrhotite are the dominant ...
Page 5
... veins , lenses and pods , etc. , localised in several bands of highly foliated phyllitic formations occurring within the massive greenstone country . The formations show an easterly dip and they are almost vertical . There are ancient ...
... veins , lenses and pods , etc. , localised in several bands of highly foliated phyllitic formations occurring within the massive greenstone country . The formations show an easterly dip and they are almost vertical . There are ancient ...
Contents
Quaternary Geology and Geomorphology of the Coastal Tracts in East Godavari District | 3 |
Quaternary Geology and Geomorphology of the Coastal Tracts in parts of Nellore District | 11 |
Quaternary Geology and Geomorphology of the Coastal Tracts of Srikakulam Vizianagaram and Visakhapatnam Districts | 19 |
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amphibolite ANANTAPUR DISTRICT ANDHRA PRADESH ANDHRA PRADESH Code anomaly anorthosite Archaean axis bands bed rock biotite biotite granite block boreholes boreholes drilled charnockite charnockite gneiss clay comprises conglomerate dam alignment Deccan Trap depth Dharwar dips DISTRICT dolerite dolerite dykes earth dam enclaves excavated exposed fluvial folds foliation formation foundation fresh rock gabbro GEOLOGICAL MAP GEOPHYSICAL GEOTECHNICAL gneiss Godavari granite granite gneiss granodiorite granulite grey indicated intrusives investigation joints KARNATAKA KERALA landforms laterite left flank limestone located lode magnetite metabasalt metres migmatite NNW-SSE NW-SE occur overburden pegmatite Peninsular gneiss phyllite pink granite PLATE power house PROJECT proposed quartz quartz veins quartzite Raichur reservoir ridge right flank river bed rock types samples sand sandstone scale schist schist belt schistose sediments shale shear zone soil spillway sq km strike length studies suggested Supergroup surface TALUK TAMIL NADU thickness toposheet traversed trench trending ultramafic upto width