R., 1969a. The Palisades Sill, New Jersey: A Reinvestigation. Geological Society of America Special Paper 111, 178 p. Walker, K. R., 1969b. A Mineralogical, Petrological, and Geochemical Investigation of the Palisades Sill, New Jersey. Geological Society of America Memoir, v. 115, p. 175 – 187. Igneous petrology of New Jersey Igneous petrology of New York (state) Triassic magmatism Sills (geology)