Records of the Geological Survey of India, Volume 99Geological Survey of India, 1964 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 83
... coal seams , ranging in thickness from less than 0.30 m . to 10 m . Usually these are plastered by a layer of natural coke . Coal seams associated with these are usually to- tally or partially converted to natural coke over a ...
... coal seams , ranging in thickness from less than 0.30 m . to 10 m . Usually these are plastered by a layer of natural coke . Coal seams associated with these are usually to- tally or partially converted to natural coke over a ...
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 ...
Contents
RECORDS | 1 |
Observations on the Siwalik System of India | 17 |
Microflora of the Nari Series of Kutch | 27 |
Copyright | |
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assemblage bands Barakar Barren Measures basin beds biotite boulder carbonaceous cells Chinji chlorite coal seams coarse Collenia colour conglomerate Conophyton Daling series Damuda Darjeeling Darjeeling gneiss deposition developed Dhokpathan dolerite dykes 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 Haritalyangar Hipparion horizon INDIA Records indicate Jour lamination lamprophyres limestone lithological Lower Gondwana Makrera metamorphism mica-schist microns migmatites mineral Miocene Nagri occur olivine overlying Panchet pebbly peridotite perithallus Pilgrim Pinjor plagioclase planes Plate Prasad quartz quartzites Raniganj Raniganj coalfield reservoir river rocks sandstone Sastry schist sections sediments shales siltstone Siwalik Siwalik system slates species spores stage stratigraphic stromatolites structures Surv SURVEY OF INDIA Talchir Tatrot thick thrust tourmaline trend upto valley veins vitrinites water table