Triplehorn, D.M., 1976, Clay mineralogy and petrology of the coal-bearing group near Healy: Alaska Division of Geological & Geophysical Surveys Geologic Report 52, 14 p. https://doi.org/10.14509/388
Report InformationClay; Coal; Geochemistry; Grubstake Formation; Healy Creek Formation; Kaolinite; Lignite Creek Formation; Mineralogy; Montmorillonite; Petrology; Plant Fossils; Tertiary; Type Section