Genesis of some tertiary Indian coals from the chemical composition of ash – a statistical approach: Part 1

Journal of Earth system science

B P Baruah1²  Puja Khare2¹  Ananya Saikia1²  Arpita Sharma1² 

[1] Agronomy-Soil Division, CSIR–CIMAP, Lucknow 226 015, India.$$;Coal Chemistry Division, CSIR–North East Institute of Science & Technology, Jorhat 785 006, Assam, India.$$

关键词: Tertiary;    Meghalaya;    high sulphur coal;    detrital/authigenic index;    PCA;    HCA;    XRD.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

In the present investigation, 37 numbers of high sulphur tertiary coal samples from Meghalaya, India have been studied on the basis of proximate and ash analysis. Various statistical tools like Bivariant Analysis, Principal Component Analysis (PCA) and Hierarchical Clustering Analysis (HCA), and also the geochemical indicators were applied to determine the dominant detrital or authigenic affinity of the ash forming elements in these coals. The genetic interpretation of coal as well as the coal ash has been carried out based on chemical compositions of high temperature ash (HTA) by using Detrital/Authigenic Index. X-Ray Diffraction (XRD) analysis was also carried out to study the mineralogy of the studied coal ashes. Both statistical tools and geochemical indicators have confirmed the detrital nature of these coals as well as the ash forming elements.

【 授权许可】

Unknown