Geochemistry of Elements in the Coal Seams of the Xishanyao Formation from Gashunwusan Mine, Xinjiang, Northwest China

The samples from Xishanyao Formation in Gashunwusan Mine were analysed by inductively coupled plasma massspectrometry (ICP-MS), X-Ray fluorimetry (XRF) and other techniques. Through the use of the above techniques, we researched characteristics and modes of occurrence of the trace elements. According to content and ratios of trace elements, we discussed coalforming environments of the research area. The results show that Co, Ga, Sr, and Ba were slightly enriched in different coal seams in Xishanyao Formation in Gashunwusan Mine and total contents of trace elements were lower than the average values of Chinese and world coal. The common elements mainly contain CaO, SiO2, Al2O3 and Fe2O3. The contents of above elements were low.