Records of the Geological Survey of India, Volume 99Geological Survey of India, 1972 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 94
... Coal seams Coal seams - Quality , rank and development As already stated , the Damuda of Darjeeling foot - hills are differen- tiated into two coal bearing units , Dalingkot and Rongtong formations separated by the barren Chunabati ...
... Coal seams Coal seams - Quality , rank and development As already stated , the Damuda of Darjeeling foot - hills are differen- tiated into two coal bearing units , Dalingkot and Rongtong formations separated by the barren Chunabati ...
Page 95
... coal seams and coal outcrops of this coalfield are usually less than 0.30 to 2.25 m . in thickness . Quality and rank Air dried moisture varies from 1.1-6.6 % ( though usually between 2-4 % ) in the upper unit coal . Their ash content ...
... coal seams and coal outcrops of this coalfield are usually less than 0.30 to 2.25 m . in thickness . Quality and rank Air dried moisture varies from 1.1-6.6 % ( though usually between 2-4 % ) in the upper unit coal . Their ash content ...
Page 98
... coal seams are crudely rat - holed by the local people . Their crude working process has resulted in numerous ac ... coal geology of India . The author grate- fully acknowledges the superintendence of Shri P. K. Ghosh , Director , Coal ...
... coal seams are crudely rat - holed by the local people . Their crude working process has resulted in numerous ac ... coal geology of India . The author grate- fully acknowledges the superintendence of Shri P. K. Ghosh , Director , Coal ...
Contents
VOLUME 99 PART | 2 |
Observations on the Siwalik System of India | 17 |
Microflora of the Nari Series of Kutch | 27 |
Copyright | |
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Andaman assemblage bands Barren Measures basin beds biotite boulder carbonaceous cells Chinji chlorite coal seams coarse Collenia colour Conophyton Daling series Damuda Darjeeling Darjeeling gneiss deposition developed Dhokpathan dips dolerite Eocene epidote facies faults fauna felspar ferruginous folds foliation foraminifera formation forms fossil G.S.I. Type garnet Geol Geological Survey Ghanpur area Giridih glacier gneisses Gondwana grained granites greenish grey groundwater Hipparion horizon indicate Jour Kaphni lamination lamprophyres lenses limestone lithological Lower Makrera metamorphism mica-schist microns migmatites mineral Miocene moraine Nagri occur olivine outlier overlying Panchet pebbly peridotite perithallus Pinjor plagioclase planes Plate Pliocene pollen quartz quartzites Raniganj Raniganj coalfield recorded reservoir rocks saline samples sandstone Sastry schist sections sediments sequence shales siltstone Siwalik system species specimens stage stratigraphic stromatolites structure Surv Survey of India Talchir Tappan Tatrot tectonic thick thrust tourmaline upto Uttattur group valley veins vitrinites zone