Depth of Emplacement of James Run Formation Pillow Basalts, and the Depth of Deposition of Part of the Wissahickon Formation, Appalachian Piedmont, Maryland
Higgins, M. W. (1971). Depth of emplacement of James Run Formation pillow basalts, and the depth of deposition of part of the Wissahickon Formation, Appalachian Piedmont, Maryland. American Journal of Science, 271(4), 321–332. https://doi.org/10.2475/ajs.271.4.321