Records of the Geological Survey of India, Volume 122, Part 7The 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 3
... volcanics of the Delhi Supergroup , their relations with other Delhi rocks , and also to study possible relationship between sulphide mineralisation and basic vol- canics . During 1987-88 an area of 160 km2 was mapped on 1 : 25,000 ...
... volcanics of the Delhi Supergroup , their relations with other Delhi rocks , and also to study possible relationship between sulphide mineralisation and basic vol- canics . During 1987-88 an area of 160 km2 was mapped on 1 : 25,000 ...
Page 4
... volcanics of basaltic ( 45-55 % SiO2 ) and dacitic to rhyodacitic compo- ( 61-67 % SiO2 ) , together with sitions tuffaceous volcaniclastics , are inter- banded with the Hindoli flysch the core of the anticlinorium structure . The basic ...
... volcanics of basaltic ( 45-55 % SiO2 ) and dacitic to rhyodacitic compo- ( 61-67 % SiO2 ) , together with sitions tuffaceous volcaniclastics , are inter- banded with the Hindoli flysch the core of the anticlinorium structure . The basic ...
Page 68
... volcanics ( e.g. plots in the diagrams : Ti / Y vs Nb / Y ; Zr / Y vs Ti / Y ; Ti vs Zr ; etc ) . In all the plots the volcanics related to the alkaline - carbonatite suite fall in the field of WPB - ALK ( within plate alkalic ) . The ...
... volcanics ( e.g. plots in the diagrams : Ti / Y vs Nb / Y ; Zr / Y vs Ti / Y ; Ti vs Zr ; etc ) . In all the plots the volcanics related to the alkaline - carbonatite suite fall in the field of WPB - ALK ( within plate alkalic ) . The ...
Contents
Aravalli transect | 1 |
Highgrade sequence and the associated rocks of the Sandmata Complex 3 Stratigraphy and structure of north Delhi basin | 2 |
Study of volcanism in Delhi Supergroup | 3 |
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Common terms and phrases
aeolian Ajabgarh Group Ajmer Ajmer district Alwar amphibolite analysed anomaly zone antiform Bajta basalt BASE METAL INVESTIGATION basin belt Berach Granite Bethunmi Bhander Bhilwara Bhilwara district Bikaner block boreholes calcareous carbonatite carried chert clay comprises conglomerate copper mineralisation covering Deccan Delhi Supergroup deposits depth dips dolerite dolomite drilling dunes dykes exploration exposed facies felsic fluvial folds Formation Gangwara geochemical geological mapping Geology Division geophysical Geotechnical investigation gneiss gossan grade GUJARAT Hindoli indicated intersected intruded Jahazpur Jaipur km² area km² was mapped landforms lignite limestone located Mangalwar Complex marble metabasics metasediments mica schist Migmatite mineral mineralised zone Nagaur NE-SW Pali district pegmatites phase phyllite quartz quartz veins quartzite Quaternary Raialo Rajasthan river sand sandstone scale schist sediments sequence shale shear zones silt Sirohi district skarns spillway strike length sulphide Supergroup surveys Tertiary thick toposheets trench trending Udaipur district unconformably Vindhyan volcanics Zawar