Records of the Geological Survey of India, Volume 112, Part 3government of India., 1977 - Geology 1867- includes the "Annual report of the Geological survey of India". |
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Page 3
... granite gave a K / Ar date of 1974 Ma , but a whole rock gave a Rb / Sr Isochron of 318085 Ma . With regard to the age of the Singbhum Granite mass , the view first expressed by Iyengar and Alwar ( 1965 ) that the Singhbhum Granite was ...
... granite gave a K / Ar date of 1974 Ma , but a whole rock gave a Rb / Sr Isochron of 318085 Ma . With regard to the age of the Singbhum Granite mass , the view first expressed by Iyengar and Alwar ( 1965 ) that the Singhbhum Granite was ...
Page 5
... Granite and other Granites Metamorphosed basic igneous rocks , amphibolite - epidiorite , chlorite schist ( mainly observed as dykes and sills in Laigar , Kumarmunda and Ghoriajor stages ) Staurolite and garnetiferous mica schist , calc ...
... Granite and other Granites Metamorphosed basic igneous rocks , amphibolite - epidiorite , chlorite schist ( mainly observed as dykes and sills in Laigar , Kumarmunda and Ghoriajor stages ) Staurolite and garnetiferous mica schist , calc ...
Page 5
... Granite : 1140 K. felspar pegmatite in Singhbhum Granite Singhbhum granite ( 10 km . south of Jamshedpur ) Rb / Sr . Ma . ( Min ) 1980 K / Ar . Ma . ( Min ) 1460 Ma . Singhbhum Granodiorite 1940 Ma . ( Min ) Biotite from Singhbhum Granite ...
... Granite : 1140 K. felspar pegmatite in Singhbhum Granite Singhbhum granite ( 10 km . south of Jamshedpur ) Rb / Sr . Ma . ( Min ) 1980 K / Ar . Ma . ( Min ) 1460 Ma . Singhbhum Granodiorite 1940 Ma . ( Min ) Biotite from Singhbhum Granite ...
Contents
GEOLOGICAL SURVEY OF INDIA | 1 |
Some aspects of the geochemistry of Dhanjori Volcanics Singhbhum District | 7 |
Geology and Structure of Southern GangpurBonaigarh Region Sundargarh | 13 |
Copyright | |
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analysis andradite anomaly average axial plane Badampahar bands basin bauxite bedding Bihar biotite calc-gneiss chalcopyrite channel chlorite cleavage Colliery conglomerate Dalma deformation deposits Dhanjori epidiorite district dolerite dolerite dykes eastern epidiorite epidote F₁ facies fold fossils fractures fuchsite galena Gangpur Gangpur Group Geol Geological Survey geophysical Ghatsila gibbsite gneiss grains granite gneiss gravity Group-II rocks Hazaribagh hornblende indicate kaolinite Karharbari Formation Keonjhar Khola Kusunda laterite lavas limb lineation massive garnet metamorphic metasedimentary belt metres mica schists mineralisation minerals muscovite Nausahi Nayadih Kusunda occur Orissa pegmatite phyllite plagioclase Plate plunging quartz quartzite Raghunathpali Rajgir Rangpo Records regional resistivity samples sand sandstone saprolite Sarkar scale schist schistose sedimentary sediments sequence sericite shales shear shows Simlipal Singhbhum skarn stowed stress structures sulphide Sundargarh District Surv Survey of India syncline synformal textural thickness TRAV traverse trend ultrabasic rock unstowed volcanics Volume