Records of the Geological Survey of India, Volume 109Geological Survey of India, 1974 - 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 100
... diamonds which dates back to Ptolemy ( founder of the library at Alexandria ) * . According to Varahamihira , Vajra ... diamonds occur in the river floods , mine and the oceans . Varahamihira has given a table to evaluate the diamonds in ...
... diamonds which dates back to Ptolemy ( founder of the library at Alexandria ) * . According to Varahamihira , Vajra ... diamonds occur in the river floods , mine and the oceans . Varahamihira has given a table to evaluate the diamonds in ...
Page 154
... diamond is the most important factor . The temperature and pressure of formation of diamonds have been an enigma , as the source of its element , carbon . The conversion of graphite into diamond is known to take place at temperature of ...
... diamond is the most important factor . The temperature and pressure of formation of diamonds have been an enigma , as the source of its element , carbon . The conversion of graphite into diamond is known to take place at temperature of ...
Page 157
... diamonds needs more examination . Accor- ding to Dawson ( at Wyllie , 1967 ) , diamond can be formed within the crust under the following conditions . 1. Lowering of the diamond stability field due to crystallisation in a volatile- rich ...
... diamonds needs more examination . Accor- ding to Dawson ( at Wyllie , 1967 ) , diamond can be formed within the crust under the following conditions . 1. Lowering of the diamond stability field due to crystallisation in a volatile- rich ...
Contents
An approach to Quaternary research with examples from Hungary | 5 |
Outline of methods of detailed exploration of bedded limestone | 14 |
Algal stromatolites in the Bhander Group of Formations | 38 |
Copyright | |
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algal amphibolite Andhra Pradesh assemblage axial plane B₁ bands Baraganda basin beds Bihar bindrabunensis borehole Bose calc-magnesian rocks Callialasporites carbonatite chlorite clays Collenia column contour core Cretaceous deformation deposit depth developed diamonds diopside district dolomite drilling Eocene facies flora folds fossils genus Geol Geological Survey Geologist Gondwana grade grains granite grey Guruvayur horizon indicate interbedded Intertrappean Jurassic Kemari kimberlites known laminae Lattavaram limestone Limestone member lineation lithologic Lower Madhya Pradesh Magardha Mahayuga mapping mesoscopic metamorphism mica mineralisation minerals Nagod observed occur Palaeobotanist pelitic Plate plunge pollen present pyrites quarry quartz quartz-mica-schist quartzite Quaternary Rajmahal hills rajmahalensis river sahnii samples sandstone Sanskrit schist schistosity sediments sequence shale shear Siddhanta siliceous slate species spores stratigraphic stromatolites structures Subarea Survey of India Suryasiddhanta talc Tamil Nadu Tanur thickness tremolite ultramafic Upper Gondwana Varahamihira vertical Wajrakarur water level zones