[052-02]Heavy Minerals in the Underclay of the Illinois No. 2 Coal
Parham, Walter E. Heavy Minerals in the Underclay of the Illinois No. 2 Coal 052-02-print
[056-09]Contact Temperature of a Peridotite Dike with Pennsylvanian Shale Determined by Clay Mineral Alterations
Parham, Walter E. Contact Temperature of a Peridotite Dike with Pennsylvanian Shale Determined by Clay Mineral Alterations 056-9-print