(DOWNLOAD) "Vegetation of Wilmington Shrub Prairie Nature Preserve, Will County, Illinois (Report)" by Transactions of the Illinois State Academy of Science # eBook PDF Kindle ePub Free
eBook details
- Title: Vegetation of Wilmington Shrub Prairie Nature Preserve, Will County, Illinois (Report)
- Author : Transactions of the Illinois State Academy of Science
- Release Date : January 01, 2011
- Genre: Engineering,Books,Professional & Technical,
- Pages : * pages
- Size : 222 KB
Description
INTRODUCTION Sand deposits are relatively common in the northern half of Illinois, accounting for nearly 5% of the land surface. These deposits, the result of erosion events associated with Wisconsin glaciation, were formed about 14,500 years ago (King 1981; Schwegman 1973; Willman and Frye 1970). The Kankakee sand deposits in northeastern Illinois are the most extensive in the state, extending from Newton County, Indiana west through large parts of Iroquois, Kankakee, Will, and Grundy counties, Illinois. These deposits remained after glacial lakes were drained as glacial moraines and ice dams were breached resulting in the Kankakee Torrent (Willman 1973). This torrent carried large amounts of sand and gravel down the Kankakee and Illinois River valleys into central Illinois south of present day Hennepin, Illinois (Schwegman 1973).