Records of the Geological Survey of India, Volume 93, Part 2The Survey, 1963 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 167
... fractions . The specimens , then , were prepared according to the normal procedure by suspending in 0.01 normal ... fraction less than 20μ in diameter and the concretions were taken up for X - ray examination by the Debye - Scherrer ...
... fractions . The specimens , then , were prepared according to the normal procedure by suspending in 0.01 normal ... fraction less than 20μ in diameter and the concretions were taken up for X - ray examination by the Debye - Scherrer ...
Page 179
... fraction , more than 0-2 mm . in diameter , can be examined under binocular microscope and consists almosts exclusively of quartz . As few grains of tourmaline were , however , found . In the fraction , with diameter from 0-63 mm . to 2 ...
... fraction , more than 0-2 mm . in diameter , can be examined under binocular microscope and consists almosts exclusively of quartz . As few grains of tourmaline were , however , found . In the fraction , with diameter from 0-63 mm . to 2 ...
Page 186
... fractions - contd . Specimen No. Fraction Mica % Kaolinite % Quartz Calcite Hematite % % % 108 < 2 DTA 95 < 2 DTA 85 < 2 ( 15 ) 2-6 Phako 87 < 2 13 DTA 75 < 2 ( 20 ) 6-20 Phako < 2 DTA ( 10 ) DTA ( 5 ) 60 F 88 77 23 90 < 2 2 < 2 ( 30 ) ...
... fractions - contd . Specimen No. Fraction Mica % Kaolinite % Quartz Calcite Hematite % % % 108 < 2 DTA 95 < 2 DTA 85 < 2 ( 15 ) 2-6 Phako 87 < 2 13 DTA 75 < 2 ( 20 ) 6-20 Phako < 2 DTA ( 10 ) DTA ( 5 ) 60 F 88 77 23 90 < 2 2 < 2 ( 30 ) ...
Contents
GEOLOGICAL SURVEY OF INDIA | 121 |
Some Features related to Eolian Sedimentation on Shore Linés By R N P 135142 | 135 |
A suggested succession of the Purana Formations of the Southern Part of 143148 | 143 |
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acid aluminium analyses anorthite anticline arkosic Banihal Banihal pass Bihar biotite calcite cent Cervus Chaibasa chloride chrome-ore chromite chromium clay particles composition concretions containing corroded Cr₂O crystallised crystals deposits diameter diaspore differential thermal analysis district Eklara End-member fault Fe ratio felspar Ferrochromite ferrous fireclay folds formation fossils fraction G. S. I. Type Geol Geological Survey goethite grain sizes grains of quartz granite hematite Hercynite Indian chromites kaolin kaolinite Kashmir Khairagarh laterite laterite profile layer limestone Madras Magnesiochromite magnetite metres mica muscovite occur outcrop oxide Palghat gap Panjal traps parent rock Pedhamli percentage Phako phyllite Pir Panjal pisolites plagioclase quartz quartz grains quartzite Raipur ripples sample sand sandstone Sayamalai sections sequence shales shear zone silica Singhbhum sodium solution specimen spinel Stegodon Surv Survey of India syncline Table thickness tunnel unit cell upper Vedadri X-ray