thumbnail

Bedrock topography of southeast Iowa

IMAP 808

By:

Links

Abstract

The bedrock in Iowa is covered nearly everywhere by unconsolidated deposits of glacial drift and alluvium, which range in thickness from less than 1 foot to more than 400 feet, and from less than 1 foot to about 60 feet, respectively. The configuration of the bedrock surface is the result of a complex system of ancient drainage courses which were developed during a long period of preglacial erosion and during shorter, but more intesne periods of interglacial erosion. 

Study Area

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Bedrock topography of southeast Iowa
Series title:
IMAP
Series number:
808
Year Published:
1973
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Iowa City, IA
Contributing office(s):
Iowa Water Science Center
Description:
2 Plates: 31.96 x 36.58 inches and 28.23 x 41.80 inches
Country:
United States
State:
Iowa
Scale:
25000
Online Only (Y/N):
N
Additional Online Files (Y/N):
N