Spontaneous combustion of coal is one of the most horrifying hazards in coal industries, especially in underground coal mines. Thus having a prior knowledge about the occurrence of this phenomenon in underground coal mines is of crucial importance in preventing this process, loss of life, huge economic loss, and environmental pollution. The aim of this work is to determine the spontaneous combu...

The Ab-Bid deposit, located in the Tabas-Posht e Badam metallogenic belt (TPMB) Central Iran, is largest Pb-Zn (±Cu) deposit Behadad-Kuhbanan mining district. Sulfide mineralization formed Middle Triassic carbonate rocks and contains galena sphalerite with minor pyrite, chalcopyrite, chalcocite, barite. Silicification dolomitization are main wall-rock alteration styles. Structural textural obse...

Abstract The Garedu Red Bed Formation (GRBF) of the northern Tabas Block (Central-East Iranian Microcontinent, CEIM) is a lithologically variable, up to 500-m-thick, predominantly continental unit. It rests gradually or unconformably on marine limestones Esfandiar Subgroup (Callovian–Oxfordian) and assigned Kimmeridgian–Tithonian. In lower part, it consists pebble- boulder-sized conglomerates/b...

Sulfur emission from coal combustion presents many environmental problems. The techniques used to reduce the amount of sulfur in coal before combustion, include physical, chemical and biological processes.Biological processes based on degradation of sulfur compounds by microorganisms offer many advantages over the conventional physical and chemical processes. The processes are performed und...

qoheston is a region in the southeastern khorasan which includes kashmar, tabas, ferdos, birjand, qaen, torbate haidarie, khaf and taibad cities. this region is surrounded by sabzevar and nishaboor from north, central desert from west, sistan and kerman from south and naomid plains from east. in addition to the geographical and climatic characteristics of the region the abundance of historical ...

A large amount of gas is emitted during underground mining processes, so productivity decreases and safety risks increase. Efficient methane drainage from the coal seam surrounding rocks in mines not only improves but also leads to higher productivity. Methane must be performed when ventilation air cannot dilute emissions mine a level below allowed limits. The cross-measure borehole method one ...