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Korba Coalfield : ウィキペディア英語版 | Korba Coalfield
Korba Coalfield is located in Korba district in the Indian state of Chhattisgarh in the basin of the Hasdeo River, a tributary of the Mahanadi. ==The coalfield== Korba Coalfield is located between latitudes 220 15’ N and 220 30’ N and longitudes 820 15’ E and 82055 ’ E.〔R. Venugopal, T.Sharma, V.K.Saxena, N.R.Mandre (editors), International Seminar on Mineral Processing Technology, January 6–8, 2005, Jointly organized by Indian School of Mines, Dhanbad and Indian Institute of Mineral Engineers, p. 606, Tata Mc Graw Hill ISBN 978-0-07-059921-5〕 Korba Coalfield covers an area of about . According to Geological Survey of India, total reserves (including proved, indicated and inferred reserves) of non-coking coal (as on 1.1.2004) in Korba Coalfield was 10,074.77 million tonnes, out of which 7,732.87 was up to a depth of 300 m and 2,341.90 million tonnes was at a depth of 300–600 m. Coal mined at Korba coalfield generally has the following characteristics – moisture: 4.5–7.4 per cent, volatile matter: 27.9–39.2 per cent, fixed carbon: 34.1–47.7 per cent, ash content: 11.2–31.6 per cent.
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