by U.S. Dept. of the Interior, Geological Survey, Open-File Services Section, Western Distribution Branch, U.S. Geological Survey in Bismarck, N.D, Denver, Colo .
Written in English
|Statement||by Robert L. Houghton, Robert D. Koob, and Gerald H. Groenewold ; prepared in cooperation with the North Dakota Geological Survey.|
|Series||Water-resources investigations report -- 85-4016|
|Contributions||Koob, Robert D., Groenewold, Gerald H., North Dakota Geological Survey., Geological Survey (U.S.)|
|The Physical Object|
|Pagination||v, 70 p. :|
|Number of Pages||70|
Buy Geochemistry of Minor Elements in Coals of the Northern Great Plains Coal Province, , Geological Survey Bulletin, Number A: 58 pages. on Author: P. et al. Zubovic. Coal with a sulfur content less than 1% is classified as low-sulfur coal, while, coal which has a sulfur content of 1% to. Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of y: carbon. Highlights Sulfur abundance in coals is controlled primarily by depositional environments. Sulfur isotopic evidence indicates a seawater source for sulfur in high-sulfur coal. Formation of pyrite and organic sulfur compounds during diagenesis. A high-sulfur, iron-poor environment for the superhigh-organic-sulfur by:
1. Introduction. Mercury is, as a general rule, among the least abundant elements in coal. Nevertheless, it has been, in recent years, one of the most studied elements in coal due to its extremely toxic effects and its tendency to bioaccumulate through the food chain (U.S. Environmental Protection Agency, , U.S. Environmental Protection Agency, ).Cited by: An Introduction to Coal Quality. By Stanley P. Schweinfurth. 1. the Northern Great Plains. For a much more detailed account of the early discovery and use of coal in the United States see The National Coal Resource Assessment Overview. U S P F]))))). This study is related to four Jurassic-age bituminous coal (– Ro%) samples collected from coal mines from the west, central and east of central, Alborz in northern Iran. The Northern Great Plains Province has lignite and subbituminous coal of Cretaceous, Paleocene and Eocene age. The coal, largely very low in sulfur, occurs in beds up to ft (30 m) thick and is strip-mined. The Rocky Mountain Province contains a great variety of coal deposits in numerous separate intermontane basins.
The International Journal of Coal Geology deals with fundamental and applied aspects of the geology and petrology of coal, oil/gas source rocks and shale gas resources. The journal aims to advance the exploration, exploitation and utilization of these resources, and to stimulate environmental awareness. Sulfur analysis at SGS follow standardized methods. Our technical experts can work with you to choose the most appropriate testing procedure for your purpose. Many of our sulfur analyses are done by the LECO carbon-sulfur analyzer and high temperature combustion. For more definitive identification, we also offer infrared detection. The major oxides present in the coal and beneficiated coal ashes include Fe 2 O 3, Al 2 O 3, SiO 2, CaO, and MgO, which significantly affect the ash fusion temperature ranges. Initial deformation temperature (IDT) changes with the ash components and, increases with the increase in the Fe 2 O 3 content in coal by: 4. Bureau of Mines: Annual report of research and technologic work on coal, fiscal year / (Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines, ), also by Arno Carl Fieldner, W. E. Rice, and United States. Bureau of Mines (page images at HathiTrust).