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The volatile matter ranges from 25-30 per cent. The calorific value of the coal varies from 4,200-5,900 Kcal/kg. [2] Almost all of India’s coal reserves are of Gondwana coal. Thickness of coal seams in Indian coalfields generally range from 1 m to 30 m. An exceptionally thick seam of 138 m has been discovered in Singrauli coalfield. [3]
Jharia coalfield is a large coal field located in the east of India in Jharia, Dhanbad, Jharkhand. Jharia represents the largest coal reserves in India having estimated reserves of 19.4 billion tonnes of coking coal. [1] The coalfield is an important contributor to the local economy, employing much of the local population either directly or ...
The carbon content is low in India's coal, and toxic trace element concentrations are negligible. The natural fuel value of Indian coal is poor. On average, the Indian power plants using India's coal supply consume about 0.7 kg of coal to generate a kWh, whereas United States thermal power plants consume about 0.45 kg of coal per kWh.
A coalfield often groups the seams of coal, railroad companies, cultural groups, and watersheds and other geographical considerations. At one time the coalfield designation was an important category in business and industrial discussions.
The South Karanpura coalfield forms an elongated strip along the Chingara fault. Barkakana railway junction is situated at the south-east edge of the field. There are two coal beds:the upper one is 50 feet (15 m) thick and the lower one 38 feet (12 m) thick, separated by sandstone, shales and shaly coal, mixed coal and shale. [2]
Talcher Coalfield is located in Angul district in the Indian state of Odisha, in the valley of the Brahmani.Talcher is famous for its rich coal reserves and coal mining industry. Located in the state of Odisha, India, Talcher is a major center of coal production and home to several large coal mining operations. The region is known for its ...
According to Geological Survey of India, the Talcher Coalfield has reserves of 38.65 billion tonnes, the highest in India. Ib Valley Coalfield has reserves of 22.3 billion tonnes, the third highest in India. [5] This coalfield forms part of the large Gondwana basin that extends across several districts in adjoining Chhattisgarh. [2]
It was the third highest reserve in Jharkhand, after Jharia Coalfield (19.4 billion tonnes) and North Karanpura Coalfield (14.6 billion tonnes). While Raniganj Coalfield is the major producer of superior quality non-coking coal, Rajmahal is one of the coalfields that has power-grade coal at shallow depth (up to 300 m). [3]