Earth Technology

Gondwana coal deposits of India: Fueling growth Indian Gondwana Coal Basins Introduction The Indian Gondwana coal deposits are primarily found in the eastern and central parts of India, dating back to the Permian and Triassic periods. They are spread across several states in central and eastern India, primarily in the Damodar Valley Basin (Jharkhand and West Bengal), Mahanadi Basin (Odisha), Son-Mahanadi Basin (Chhattisgarh), Godavari Valley Basin (Telangana and Maharashtra), and Wardha Valley Basin (Maharashtra). These coal deposits are stratigraphically classified into several formations, including the Talchir, Barakar, Raniganj, and Kamthi formations. The coal-bearing strata are typically interbedded with sandstones, shales, and conglomerates, representing fluvial and lacustrine environments. These formations hold significant economic importance as they contain vast reserves of coal, contributing significantly to India's energy and growth needs. Geological Setting The ...

Comprehensive evaluation of coal quality: proximate and ultimate analysis along with gross calorific value Introduction Coal remains one of the most vital energy resources globally, playing a significant role in electricity generation, industrial processes, and heating applications. Understanding the quality of coal is paramount for efficient utilization and environmental sustainability. Proximate analysis, ultimate analysis, and gross calorific value assessment are fundamental techniques used in evaluating coal quality. This comprehensive analysis provides insights into the composition, combustion characteristics, and energy potential of coal. This article will discuss these methods, their significance, and their application in assessing coal quality.      Opencast coal mining Proximate Analysis Proximate analysis involves the determination of the basic components of coal, including moisture, volatile matter, fixed carbon, and ash content. These parameters...