Records of the Geological Survey of India, Volume 127, Parts 5-6The Survey, 1994 - 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 13
... intrusives older intrusives Banded gneiss The banded gneiss represents the oldest rock unit exposed in the area . It is grey medium - grained and exhibits pronounced gneissosity . It ranges in composition from diorite though quartz ...
... intrusives older intrusives Banded gneiss The banded gneiss represents the oldest rock unit exposed in the area . It is grey medium - grained and exhibits pronounced gneissosity . It ranges in composition from diorite though quartz ...
Page 32
... intrusives . The generalised stratigraphy of the area is given below : LOWER P R Z OO Younger T I Intrusives E C R ARCHAEAN N Basic intrusives 1 Acid intrusives Metasediments Schist Belt Felsic volcanics Mafic volcanics Peninsular ...
... intrusives . The generalised stratigraphy of the area is given below : LOWER P R Z OO Younger T I Intrusives E C R ARCHAEAN N Basic intrusives 1 Acid intrusives Metasediments Schist Belt Felsic volcanics Mafic volcanics Peninsular ...
Page 129
... intrusives of metapyrexenite - metagabbro composition occur within the granitoid gneisses along the western margin ... intrusives are pink and grey pegmatite , leucogranite , aplite and quartz veins . The alkaline intrusives occur at ...
... intrusives of metapyrexenite - metagabbro composition occur within the granitoid gneisses along the western margin ... intrusives are pink and grey pegmatite , leucogranite , aplite and quartz veins . The alkaline intrusives occur at ...
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Common terms and phrases
acid alignment amphibolite analysed ANDHRA PRADESH anomaly bands basalt basic basin biotite biotite gneiss block boreholes calc-silicate charnockite chert chlorite Deccan Trap deformation depth dips DISTRICT dolerite drilling dykes enclaves ENE-WSW excavation exposed flows folds foliation Formation fractures gabbro garnet garnetiferous geochemical GEOLOGICAL MAP geophysical gneiss gneissic gold Gondwana granite granite gneiss granitoids granulite grey Group hornblende indicated intrusives joints KARNATAKA kimberlite laterite lineament located magnetite magnetite quartzite MAHARASHTRA metabasalt migmatite mineral mineralised zone NE-SW NNW-SSE NW-SE occur pegmatite phyllite pink granite porphyritic PRADESH Code Project pyrite pyroxene pyroxene granulite pyroxenite quartz quartz veins quartzite quartzo-feldspathic Quaternary regional reservoir river rock types Sakoli samples sandstone scale schist schist belt schistose sediments shale shear zone slope soil sq km sq.km strike length studies sulphide Supergroup surveys TAMIL NADU thick toposheet traverse trench trending tunnel upto values volcanics width के