Characteristics of Wisconsinan glacial tills in Indiana and their influence on argillic horizon development.

D. P. Franzmeier, R. B. Bryant, G. C. Steinhardt

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12 Scopus citations

Abstract

In relatively young soil landscapes the parent material largely controls the properties of soils formed on it. Glaciers of the Tazewell subage (15 000-21 000 yr ago) covered the northern two-thirds of Indiana and glaciers of the Cary subage (15 000-12 000 yr ago) covered the northern third. Particle size distribution, calcium carbonate equivalent (CCE), and calcite-dolomite ratio were determined by standard soil characterization procedures on pedons sampled mainly during the course of the soil survey to represent till-derived soils. These data were grouped into classes according to geographic areas defined by major end moraines and recognized ice-margin positions and by new boundaries that separate areas shown to have different kinds of till in this study. In a series of concentric Cary-age moraines in the northeast, average clay content increases from 27 to 37% and CCE decreases from 310 to 170 g kg-1 northeastward, reflecting increasing lacustrine influence in the younger tills. -from Authors

Original languageEnglish (US)
Pages (from-to)1481-1486
Number of pages6
JournalSoil Science Society of America Journal
Volume49
Issue number6
DOIs
StatePublished - Jan 1 1985

All Science Journal Classification (ASJC) codes

  • Soil Science

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