Records of the Geological Survey of India, Volume 124, Parts 5-6Government of India, 1991 - 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 251
... dykes were examined , which are mainly dolerites and gabbros . One dyke each of lherzolite and pyroxenite are also noticed . While all the above dykes belong to pre- granitic activity , some older dykes of amphibolite also occur as ...
... dykes were examined , which are mainly dolerites and gabbros . One dyke each of lherzolite and pyroxenite are also noticed . While all the above dykes belong to pre- granitic activity , some older dykes of amphibolite also occur as ...
Page 255
... dykes shows that the dykes are tholeiitic in composition ( Plate - 3 , fig.1 ) , with SiO2 ranging between 47.83 and 53.62 % . They plot in oceanic basalt field with a few dykes showing continental affinity ( Plate - 3 , fig.2 ) , and ...
... dykes shows that the dykes are tholeiitic in composition ( Plate - 3 , fig.1 ) , with SiO2 ranging between 47.83 and 53.62 % . They plot in oceanic basalt field with a few dykes showing continental affinity ( Plate - 3 , fig.2 ) , and ...
Page 70
... dykes and associated formations . This study was supplemented by regional gravity and semidetailed magnetic ( VF ) surveys to locate the source bodies of the dykes . The dyke - swarm was emplaced into the Precam- Ι”rian Bengpal and ...
... dykes and associated formations . This study was supplemented by regional gravity and semidetailed magnetic ( VF ) surveys to locate the source bodies of the dykes . The dyke - swarm was emplaced into the Precam- Ι”rian Bengpal and ...
Contents
Andhra Pradesh | 1 |
Karnataka and Goa | 61 |
Tamil Nadu Kerala | 109 |
Copyright | |
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Common terms and phrases
aa flows amphibolite ANDHRA PRADESH ANDHRA PRADESH Code anomaly Archaean bands basalt flows basement basin biotite block bole boreholes carried charnockite chert clay coarse compound pahoehoe comprises Deccan Trap deposits depth dips DISTRICT dolerite drilling dykes emplaced exposed feldspar field season foliation Formation gabbro geochemical GEOLOGICAL MAP Geologist Jr geophysical GEOTECHNICAL gneiss gneissic gold Gondwana granite granite gneiss gravel grey Group hornblende INDEX indicated intrusives investigation joints KARNATAKA kimberlite laterite lava limestone located Madhya Pradesh MADHYA PRADESH Code magnetite MAHARASHTRA metabasalt migmatites mineral mineralised zone Nagpur NW-SE occur pahoehoe pegmatite phenocrysts phyllite pink granite plagioclase Plate-2 porphyritic quartz quartz reefs quartz veins quartzite Quaternary reservoir river rock types samples sandstone scale schist schist belt sediments shale shear zone soil spillway sq km stratigraphic strike length studies sulphide Supergroup surface surveys TAMIL NADU thick toposheet traverse trench trending ultramafic upto volcanic width