Petrology and Geochemistry of the Harlan, Kellioka, and Darby Coals from the Louellen 7.5-Minute Quadrangle, Harlan County, Kentucky

Minerals

Michelle N. Johnston¹  James C. Hower¹  Shifeng Dai²  Peipei Wang²  Panpan Xie²  Jingjing Liu² 

[1] Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, KY 40511, USA;State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing 100083, China;

关键词: Pennsylvanian;    mining history;    coking coal;    coal quality;   

DOI  :  10.3390/min5040532

来源: mdpi

【 摘 要 】

The Harlan, Kellioka, and Darby coals in Harlan County, Kentucky, have been among the highest quality coals mined in the Central Appalachians. The Middle Pennsylvanian coals are correlative with the Upper Elkhorn No. 1 to Upper Elkhorn No. 3½ coals to the northwest of the Pine Mountain thrust fault. Much of the mining traditionally was controlled by captive, steel-company-owned mines and the coal was part of the high volatile A bituminous portion of the coking coal blend. Overall, the coals are generally low-ash and low-sulfur, contributing to their desirability as metallurgical coals. We did observe variation both in geochemistry, such as individual lithologies with significant P₂O₅/Ba + Sr/Rare earth concentrations, and in maceral content between the lithotypes in the mine sections.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.