LAND SUBSIDENCE & EARTH FISSURES IN ARIZONA Slaff, S. (1993). L<strong>and</strong> Subsidence <strong>and</strong> Earth Fissures <strong>in</strong> <strong>Arizona</strong>: Down-to-Earth Series 3. Tucson: <strong>Arizona</strong> Geological Survey. Schumann, H. H. (1995). L<strong>and</strong> Subsidence <strong>and</strong> Earth fissure hazards near Luke Air Force Base, <strong>Arizona</strong>. In K. R. Pr<strong>in</strong>ce, D. L. Galloway, & S. A. Leake (Eds.), U.S. Geological Survey <strong>subsidence</strong> <strong>in</strong>terest group conference, Edwards Air Force Base, Antelope Valley, California, November 18–19, 1992—abstracts <strong>and</strong> summary (pp. 18-21). Sacramento, CA: U.S. Geological Survey. (Open-File Report No. 94-532) Schumann, H.H., <strong>and</strong> Cripe, L.S. (1986). L<strong>and</strong> <strong>subsidence</strong> <strong>and</strong> <strong>earth</strong> <strong>fissures</strong> caused by groundwater depletion <strong>in</strong> Southern <strong>Arizona</strong>, U.S.A. In A.I. Johnson, L. Carbogn<strong>in</strong> & L. Ubert<strong>in</strong>i (Eds.], Proceed<strong>in</strong>gs of the 3 rd International Symposium on L<strong>and</strong> Subsidence, Venice, Italy, 19-25 March 1984 (pp. 841-851). International Association of Hydrological Sciences. (Publication 151) Schumann, H. H., & Po<strong>l<strong>and</strong></strong>, J. F. (1969). L<strong>and</strong> <strong>subsidence</strong>, <strong>earth</strong> <strong>fissures</strong>, <strong>and</strong> groundwater withdrawal <strong>in</strong> South Central <strong>Arizona</strong>, U.S.A. International Symposium on Subsidence, Tokyo, 295–302. Strange, W. E. (1983). Subsidence Monitor<strong>in</strong>g for the State of <strong>Arizona</strong>. Rockville, MD: National Oceanic <strong>and</strong> Atmospheric Adm<strong>in</strong>istration National Geodetic Information Center. ARIZONA L<strong>and</strong> Subsidence Group December 2007 21
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