| 1 |
Organic geochemistry of Duckmantian (Pennsylvanian) coals from the Ruhr Basin, western Germany
Bocker J, Littke R, Hartkopf-Froder C, Jasper K, Schwarzbauer J
International Journal of Coal Geology, 107, 112, 2013 |
| 2 |
Lacustrine delta deposits and their effects on coal mining in a surface mine in Derbyshire, England
Davies-Vollum KS, Guion PD, Satterfield DA, Suthren RJ
International Journal of Coal Geology, 102, 52, 2012 |
| 3 |
Evolution of Pennsylvanian (Late Carboniferous) peat swamps of the Ruhr Basin, Germany: Comparison of palynological, coal petrographical and organic geochemical data
Jasper K, Hartkopf-Froder C, Flajs G, Littke R
International Journal of Coal Geology, 83(4), 346, 2010 |
| 4 |
Radiometric ages of the Fire Clay tonstein [Pennsylvanian (Upper Carboniferous), Westphalian, Duckmantian]: A comparison of U-Pb zircon single-crystal ages and Ar-40/Ar-39 sanidine single-crystal plateau ages
Lyons PC, Krogh TE, Kwok YY, Davis DW, Outerbridge WF, Evans HT
International Journal of Coal Geology, 67(4), 259, 2006 |
