Geochemistry of the Leatherwood coal in eastern Kentucky

The Middle Pennsylvanian (Bolsovian) Leatherwood coal in central eastern Kentucky is a moderately thick (up to >1.6 m in the sites examined in this study) coal bed...肯塔基州中东部的中宾夕法尼亚世（Middle Pennsylvanian）布尔佐夫阶（Bolsovian）莱瑟伍德煤（Leatherwood coal）为厚度中等的煤层，在本研究考察的各采样点中，该煤层最大厚度可达1.6米以上……