Records of the Geological Survey of India, Volume 71The Survey, 1937 - 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 106
... dykes are intrusive into the granite , and all , except one , are basic in character . The dykes are mostly doleritic in texture , but some are basaltic , while gabbro or norite has also been observed in a few places [ e.g. , in the ...
... dykes are intrusive into the granite , and all , except one , are basic in character . The dykes are mostly doleritic in texture , but some are basaltic , while gabbro or norite has also been observed in a few places [ e.g. , in the ...
Page 110
... dykes in Keonjhar are simply a continuation of the Newer Dolerite ' dykes in Singhbhum . The average Deccan trap is also akin to these dyke rocks . In comparison with these , the Gwalior trap contains less alumina and more alkalies ...
... dykes in Keonjhar are simply a continuation of the Newer Dolerite ' dykes in Singhbhum . The average Deccan trap is also akin to these dyke rocks . In comparison with these , the Gwalior trap contains less alumina and more alkalies ...
Page 118
... dykes have penetrated through and are surrounded by granitic rocks , and hence such a mixing may probably have taken place . Dr. N. L. Bowen ' has discussed this question and has stated that such assimilation can take place if the rock ...
... dykes have penetrated through and are surrounded by granitic rocks , and hence such a mixing may probably have taken place . Dr. N. L. Bowen ' has discussed this question and has stated that such assimilation can take place if the rock ...
Contents
PART | 1 |
General Report of the Geological Survey of India for the year 1935 | 96 |
The Dyke Rocks of Keonjhar State Bihar and Orissa By M | 105 |
Copyright | |
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Assam bands Bathonian Bengal Bihar Bihar and Orissa brachiopod Buckm Burma calcareous Calcutta cent Central Provinces Chandpur Chaung clays Coal Cretaceous Dagshai deposits district dyke east epidiorite fauna feet felspar formations fossils G. S. I. Type Garhwal genus Geol Geological Survey gneisses Gondwana granite Himalaya Holcothyris inches India Jurassic Krol Kyaukse limestone Liu-wun lower Madras Manganese-ore Mansuy mapped marble Mesozoic Messrs meteorite Mica Middlemiss miles minerals Mogok Nahan Namyau series Napeng beds Nappe Norian north-east Northern Shan Nummulitics occur Orbitolina Orissa outliers output P. L. Renewal Petroleum phyllites pinnules Plate production Quantity quartz quartzites river rocks Sahni sandstones schistose schistose series schists Septem shales sheet showing Simla Siwalik slates species specimens stone Surv Survey of India syncline thrust tons valued TOTAL Triassic Upper valley wolfram Yunnan Zinbon