New Geologic Maps Completed for ISGS STATEMAP Effort
In September 2008, the Illinois State Geological Survey (ISGS) received matching funds from the U.S. Geological Survey (USGS) National Cooperative Geologic Mapping Program's (NCGMP) STATEMAP component to produce seven 1:24,000-scale geologic maps. STATEMAP receives funds through an annual competitive grant process by which the State offers to match every Federal dollar. Mapping areas are selected based on issues or needs to address critical earth science problems. STATEMAP's mandate is to produce accurate geologic maps and three-dimensional framework models that help problem solvers and decision makers, both public and private, to understand how and where geology affects land-use decisions. The surficial and bedrock geology mapping provides the base data used to produce derivative maps to show the locations of potential geologic hazards (landslides, mined-out areas, karst, possible flood zones) and potential earth resources (water, coal, oil, aggregates). The seven geologic maps were completed and delivered to the USGS on August 31, 2009.