Abstract
Analysis of maceral and mineral content and huminite reflectance for the Rosebud coal at the Absaloka, Big Sky, and Rosebud mines provides information on the variation of coal composition and rank probably caused by variation in depositional environments and coalification. Humanite reflectance indicates that rank is gradational from lignite at the Absaloka and Rosebud mines to subbituminous C at the Big Sky mine. Amounts of minerals and huminite, inertinite, and liptinite group macerals vary vertically at Absaloka and Big Sky, defining lithologic layers and suggesting changes in type and style of peat accumulation. Direct correlation of huminite reflectance with huminite abundance and inverse correlation with inertinite abundance suggests a possible relationship with coalification, depositional environment, and/or original floral characters. Depositional environment is initially interpreted as a swamp with mixed vegetation, or a swamp alternating from arboreal to herbaceous vegetation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
