COAL SEAM DELINEATION AND THEIR PROXIMATE ANALYSIS IN NORTH AND NORTHEASTRAN PARTS OF AURONGA COAL FIELD, JHARKHAND, INDIA

Raju Doddi; Santhosh Kumar. S; Muralidhar. M

Volume : IV, Issue : V, May - 2015

COAL SEAM DELINEATION AND THEIR PROXIMATE ANALYSIS IN NORTH AND NORTHEASTRAN PARTS OF AURONGA COAL FIELD, JHARKHAND, INDIA

Raju Doddi, Santhosh Kumar. S, Muralidhar. M

Abstract :

Coal is one of the primary sources of energy, accounting for about 67% of the total energy consumption in India. India has some of the largest reserves of coal in the world. Indian coal has high ash content and low calorific value. Auranga Coalfield is the easternmost member of the Koel Valley group of coalfields in Latehar District of Jharkhand State, India. Five promising sectors of coal be� formations had been identified in Auranga Coalfield viz., Jagaldagga, Gowa, Rajbar, Sabanu, and Banhardi sectors. Of the potential sectors identified, Rajbar coal block occupies the largest area which is spread over an area of 17 sq km in the north and north–eastern part of the Auranga coalfield. On the basis of drilling data, the geological formations encountered are Raniganj, Barren Measure, Barakar and Talchir Formations of the lower Gondwana Supergroup and representative lithology in these formations in overall are sandstone, siltstone, coal seams and sandstone with predominant black shale, pebble beds, conglomerate and fireclay. To establish quality of the coal in terms of grade and chemical nature, a few coal seam samples were collected from Rajbar coal block and proximate analysis for different elements like moisture and ash contents, volatile matter and fixed carbon etc has been carried out. The results show that the coals of this basin are equally rich in ash, volatile matter and fixed carbon. Moisture content and used–heat–value (UHV) are low. In general, the grades of these non– cocking coals in this area have been assigned as D, E and F