Igneous

Lewis, P.H., 1973, Mica pyroxenite inclusions in limburgite, Hopi Buttes volcanic field, Arizona: Provo, Utah, Brigham Young University Geology Studies, v. 20, pt. 4, p. 121-225.

Laughlin, A.W., Aldrich, M.J., Shafiqullah, M., and Husler, J., 1986, Tectonic implications of the age, composition, and orientation of lamprophyre dikes, Navajo volcanic field, Arizona: Earth and Planetary Science Letters, v. 76, p. 361-374.

Kress, V.C., Laughlin, A.W., and Aldrich, M.J., 1985, K-Ar ages of Cenozoic dikes in Arizona and New Mexico: Isochron/West, no. 43, p. 3-4.

King, J.W., 1952, Geology of Horse Mesa, Arizona-New Mexico, with recommendations for wagon drilling: U.S. Atomic Energy Commission Report TM-20, 7 p.

Kelley, V.C., and Clinton, N.J., 1960, Fracture systems and tectonic elements of the Colorado Plateau: Albuquerque, University of New Mexico, Publications in Geology no. 6, 104 p., 1 sheet, scale 1:500,000.

Johnson, M.G., and Todd, V.R., 1973, A summary of radiometric age determinations of igneous rocks from southeastern Arizona: Isochron/West, no. 8, p. 1-19.

Johannsen, A., 1908, Notes on the igneous rocks of western Arizona, in Lee, W.T., Geological reconnaissance of a part of western Arizona: U.S. Geological Survey Bulletin 352, p. 81-92.

Jinks, J.E., 1982, Mineral investigation of the Superstition Wilderness and contiguous RARE II further planning areas, Gila, Maricopa, and Pinal Counties, Arizona: U.S. Bureau of Mines Mineral Land Assessment Open File Report MLA 136-82, 25 p., 1 sheet, scale 1:48,000.

Gregory, H.E., and Moore, R.C., 1931, The Kaiparowits region; a geographic and geologic reconnaissance of parts of Utah and Arizona: U.S. Geological Survey Professional Paper 164, 161 p., 3 sheets, scale 1:250,000.

Gregory, H.E., 1950, Geology and geography of the Zion Park region, Utah and Arizona: U.S. Geological Survey Professional Paper 220, 200 p., 5 sheets, scale 1:125,000.