Megabreccia

Lipman, P.W., and Sawyer, D.A., 1985, Mesozoic ash-flow caldera fragments in southeastern Arizona and their relation to porphyry copper deposits: Geology, v. 13, no. 9, p. 652-656.

Lipman, P.W., 1989, Field guide to the Cretaceous Tucson Mountains caldera, Arizona - Anatomy of an asymmetrical trap-door subsidence structure; Arizona Geological Society Spring Field Trip, April 15, 1989: Arizona Geological Society Field Trip Guidebook, 23 p.

Lipman, P.W., 1984, The roots of ash flow calderas in western North America: Windows into the tops of granitic batholiths: Journal of Geophysical Research, v. 89, no. B10, p. 8801-8841.

Krieger, M.H., 1977, Large landslides, composed of megabreccia, interbedded in Miocene basin deposits, southeastern Arizona: U.S. Geological Survey Professional Paper 1008, 25 p., 4 sheets, scales 1:125,000, 1:12,000, and 1:6,000.

Krieger, M.H., 1974, Geologic map of the Crozier Peak quadrangle, Pinal County, Arizona: U.S. Geological Survey Geologic Quadrangle Map GQ-1107, 11 p., 1 sheet, scale 1:24,000.

Krieger, M.H., 1974, Geologic map of the Putnam Wash quadrangle, Pinal County, Arizona: U.S. Geological Survey Geologic Quadrangle Map GQ-1109, 7 p., 1 sheet, scale 1:24,000.

Krieger, M.H., 1973, Megabreccias (large landslide blocks) interbedded in Miocene playa and alluvial deposits, south of Ray, Arizona [abs.]: Geological Society of America Abstracts with Programs, v. 5, no. 7, p. 699-700.

Breed, W.J., and Ford, T.D., 1973, Chapter Two-and-a-half of Grand Canyon history, or the Sixty Mile Formation: Plateau, v. 46, no. 1, p. 12-18.

Breed, W.J., 1975, The Sixty Mile Formation: A slide breccia of younger Precambrian age, Grand Canyon, Arizona [abs.]: Geological Society of America Abstracts with Programs, v. 7, no. 5, p. 590.

Anderson, R.E., 1978, Geologic map of the Black Canyon 15-minute quadrangle, Mohave County, Arizona, and Clark County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-1394, 1 sheet, scale 1:62,500.