Simonson, R. W., 1978, A multiple-process model <strong>of</strong> soil genesis, in Mahaney, W. C., ed., Qu<strong>at</strong>ernarySoils, Geo Abstracts, Norwich, England, p. 1-25.Soil Survey Division Staff, 1993, Soil Survey Manual, U. S. Department <strong>of</strong> Agriculture Handbook No. 18,U. S. Government Printing Office, Washington, DC, 437 p.Sparks, D. L., 1995, Environmental Soil Chemistry, Academic Press, San Diego, <strong>26</strong>7 p.Stevenson, I. L., 1964, Biochemistry <strong>of</strong> Soil, in Bear, F. E., ed., Chemistry <strong>of</strong> the Soil, Second Edition,American Chemistry Society Monograph Series, Reinhold Publishing Corp., New York, 515 p.We<strong>at</strong>herley, A. H., P. S. Lake, and S. C. Rogers, 1980, Zinc pollution and the ecology <strong>of</strong> the freshw<strong>at</strong>erenvironment, in Nriagu, J. O., ed., Zinc in the Environment, Part I: Ecological Cycling, Wiley-Interscience, New York, p. 337-418.White, M. L., 1957, The occurrence <strong>of</strong> zinc in soil, Economic Geology, v. 52, p. 645-651.Wilding, L. P., N. E. Smeck, and L. R. <strong>Dr</strong>ees, 1977, Silica in soils: Quartz, cristobalite,tridymite, and opal; in Dixon, J. B. and S. B. Weed, eds., Minerals in Soil Environments, SoilScience Society <strong>of</strong> America, Madison, WI, 948 p.Willman, H. B. and J. C. Frye, 1970, Pleistocene Str<strong>at</strong>igraphy <strong>of</strong> <strong>Illinois</strong>, Bulletin 94, <strong>Illinois</strong> St<strong>at</strong>eGeological Survey, 204 p.Yin, Y., H. E. Allen, C. P. Huang, D. L. Sparks, and P. F. Sanders, 1997, Kinetics <strong>of</strong> mercury(II) adsorptionand desorption on soil, Environ. Sci. Technol. v. 31, p. 496-503.Yuan, T. L., N. Gammon, Jr., and R. G. Leighty, 1967, Rel<strong>at</strong>ive contribution <strong>of</strong> organic and clay fractionsto c<strong>at</strong>ion-exchange capacity <strong>of</strong> sandy soils from several soil groups, Soil Sci., v. 104, p. 123-128.Zhang, Y. and J. K. Frost, 2002, Regional distribution <strong>of</strong> selected elements in <strong>Illinois</strong> soils, <strong>Illinois</strong> St<strong>at</strong>eGeological Survey, Environmental Geology 154.28
Table 1. Core number, county name, and final depth <strong>of</strong> coreCore Number County Name Final Depth <strong>of</strong> Core (ft)<strong>11</strong> Franklin 21.612 Hamilton 22.213 White 15.214 Washington 20.415 Washington 17.616 Monroe 14.517 Monroe 16.918 Clinton 17.519 Clinton 16.320 Marion 14.621 Wayne 15.222 Edwards 10.823 Wabash 21.824 Edwards 15.125 Wayne 22.8<strong>26</strong> Jefferson 9.829
- Page 1 and 2: A Progress Report on the Descriptio
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