Memoirs of the Geological Survey of India, Volume 95order of the Governor-General of India., 1965 - Geology |
Contents
iii Total seam composition | 51 |
c SEMANA SEAMS | 57 |
MICROSTRUCTURE OF THE COAL CONSTITUENTS OF KARANPURA | 67 |
Copyright | |
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Common terms and phrases
anthraxylon Argada Argada seam Bachra and Ray Bachra area Balkudra Barakar coals basis bituminous coals borehole Carbonifere cent chemical Churi seams clarain clarodurite classification of coal coal components Coal Petrology coal seams coal type coking constituents Cutinite dull coal durain duroclarite exines exinite Fuel fusain fusibles fusinite fusite Geol Geological Giridih Gluckauf Gondwana Grey shale group macerals Heerlen houille India Indian coals indicates inertinite infusibles Inst intermediates Karharbari coals Kurse seam lignite Lower Bachra seam megaspore metres micrinite micro-bands microlithotype composition microscopic microstructure Middle Bachra mineral and shaly Nakari normal to bedding North occur opaque petrographic composition petrographic study portion Proc proportion Raniganj Ray area resinite samples sandstone Saunda Sayal Semana Bottom Semana Top semi-bright coal semifusinite shale shaly shaly matter siderite South Karanpura coalfield specimens spores sporinite Talcher telinite thick-walled thickness Thiessen thin section normal tracheids Upper Bachra upper seams variation vitrinite vitrite vitrite and clarite