НҮҮРСТ ХОТГОРЫН ОРДЫН НҮҮРСНИЙ ЧАНАРЫН ӨӨРЧЛӨЛТИЙН ЗҮЙ ТОГТОЛ

Abstract

In this article, structure and changes of coal quality of Nuurst Khorgot deposit are discussed. Nuurst Khotgor deposit is located in Kharkhiraa coal-hearing basin of Western Mongolian province. Deposits in Kharkhiraa coal-bearing basin are located in separate structures and hosted mainly in Upper Carboniferious rocks. At Nuurst Khotgor deposit, carboniferous rocks can be divided into two Formations, Shanagabulag and Uliastai. Uliastai formation consists of conglomerate, mudstone, siltstone and coal seam. Nuurst Khotgor deposit is hosted in syncline structure called ‘Avdar’ and it is clearly shown on satellite image. Recently, as the results of exploration work, in total 13 coal seams were identified. The most prolific seam is Seam I (up to 205.3 m thick). Coal quality changes are mainly related to decrease in rank from Zh type to G type from bottom seam to upper seam. Further detailed study on coal quality of the deposit is required.