504 resultados para QUATERNARY PERIOD
em Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States
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Although during much of its geologic history Iowa was part of an interior sea, today what we see on the land surface has been heavily influenced by recent glaciation. Everything from Iowa soils, rivers, lakes, and hills has been influenced by glaciation. Most of Iowa’s bedrock is hidden beneath a thick mantle of deposits from the Cenozoic (i.e., new life) Era, spanning the last 65 million years. Geologists have divided the Cenozoic Era into two periods. These are the Tertiary (1.8-65 million years ago) and Quaternary Periods (recent to 1.8 million years ago). Most geologic records in Iowa are from the Quaternary period, and include glacial till and loess.
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Community School District Audit Report - Special Investigation
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State Agency Audit Report
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Report on a Special Investigation of the Central Point Coordination for Calhoun and Pocahontas Counties.
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City Audit Report - Special Investigation
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Community School District Audit Report - Reaudit
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City Audit Report - Reaudit
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State Agency Audit Report - Special Investigation
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Other Audit Reports - Performance Investigation
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State University Audit Report - Special Investigation
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State University Audit Report - Special Investigation
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City Audit Report - Special Investigation
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Other Audit Reports - Special Investigation
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Other Audit Reports - Special Investigation
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Other Audit Reports - Dubuque County Reaudit