Records of the Geological Survey of India, Volume 110Geological Survey of India, 1975 - 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 64
... Saha , the " Iron Ore Group " is characterised by deformation on NNE - SSW trending axes , imprinted by an older orogenic cycle ( Sarkar and Saha , 1963 ) . As the shear zone is approached , fold structures with an E - W structure are ...
... Saha , the " Iron Ore Group " is characterised by deformation on NNE - SSW trending axes , imprinted by an older orogenic cycle ( Sarkar and Saha , 1963 ) . As the shear zone is approached , fold structures with an E - W structure are ...
Page 75
... Saha ( op cit ) . Age data provided by Vinogradov et al ( 1964 ) , and Sarkar et al ( 1969 ) buttress the opinion that the Newer Dolerites , Noamundi Lavas and the Dalma Lavas were approximately coeval . The age date have been tabulated ...
... Saha ( op cit ) . Age data provided by Vinogradov et al ( 1964 ) , and Sarkar et al ( 1969 ) buttress the opinion that the Newer Dolerites , Noamundi Lavas and the Dalma Lavas were approximately coeval . The age date have been tabulated ...
Page 95
... Saha ( 1975 ) supports this classification accepting it as synkinematic with respect to the second generation of deformation within the " Singhbhum Group " . According to him it is a ferrohastingsite - biotite granite grading to alkali ...
... Saha ( 1975 ) supports this classification accepting it as synkinematic with respect to the second generation of deformation within the " Singhbhum Group " . According to him it is a ferrohastingsite - biotite granite grading to alkali ...
Contents
InĂ¥r | 1 |
Recent advances in our knowledge of the Pakhal Supergroup with | 39 |
Precambrian geology of eastern India between the Ganga and | 60 |
Copyright | |
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amphibolite anorthosite Archaean arkose assemblage Banerjee basal basin beds belt Bihar charnockites Chatterjee Chhotanagpur clay conglomerate correlation Cuddapah Dalma deformation Deolond deposits Dhanjori district Dolerite dolomite Dunn Eastern epidiorites fauna fold formations fossils Gangpur garnet Geol Soc Ind Geol Surv Ind Geological Survey geologists glauconite gneisses Godavari valley Gondwana grade granite granite gneiss granulite facies heavy mineral Himalayas Hooghly Ind Miner India Indian shield Int Geol intrusive Iron Ore Group Iyengar Kaimur Kashmir lavas limestone lithological Mallampalli Mallik marine Mem Geol metamorphic Mulug Noamundi occur offshore Orissa outcrop Pakhal Pal Ind palaeontology phyllites Plate Porcellanite Pradesh Precambrian Precambrian rocks Proc Proterozoic quartz quartzite Rec Geol Surv region Rewa rift samples sand Sandstone Sarkar and Saha Sastry schists sedimentary sediments sequence Shale shear zone Singhbhum Singhbhum granite stratigraphic structures studies suggested Sullavai SURVEY OF INDIA tectonic thickness ultramafic unconformity Vindhyan younger