Web-Based Geologic Maps, Databases, and HTML Pages for Marion County, Indiana

Abstract
The Indiana Geological Survey (IGS) has created an internet map server for Marion County in central Indiana. The site provides detailed geologic information needed to address environmental issues, resource management issues, and land-use conflicts related to a growing population. Marion County is the location of Indianapolis, the state capital and largest city. The IGS anticipates that the Web site will be widely used by the general public, industry, and government entities concerned about the geology, groundwater, and other natural resources. The Marion County Web site links an Internet map server (IMS) and database to provide a portal to the IGS‘s enterprise geodatabases, which allow users to efficiently create, manage, update, and distribute maps and data. The IMS site retrieves maps of bedrock and surficial geology completed during earlier IGS mapping projects. Hydrogeology, infrastructure, and imagery map layers are also included. Database information includes lithologic information (iLITH) compiled from water-well records stored in the Indiana Department of Natural Resources, Division of Water archives and natural gamma-ray geophysical log data, stratigraphic test hole data, and petroleum well-record data from the IGS. Currently, the following products are being prepared: (1) illustrated Web pages discussing the surficial geology, bedrock geology, and bedrock topography; (2) illustrated Web pages discussing digital elevation model terrain, gamma-ray log, iLITH, and clay thickness data sets; (3) online glossary; and (4) metadata for the map layers. The development of the Web site is funded by the IGS and the Great Lakes Geologic Mapping Coalition.
Description
This poster was presented at the 2011 meeting of the Indiana Academy of Science, 126th Annual Academy Meeting, March 4-5, 2011, Indianapolis, Indiana.
Keywords
gamma-ray log records, glacial geology, surficial geology, unconsolidated thickness, bedrock topography, bedrock geology, water well record, petroleum well record, geographic information systems, Internet map server, digital elevation model, DEM, IMS, GIS, Great lakes Geologic Mapping Coalition, Indiana, Indianapolis, Indiana Geological Survey, Marion County
Citation
[for abstract] Rupp, R. F., Hasenmueller, N. R., Walls, A. C., Karaffa, M. D., Brown, S. E., Fleming, A. H., Ferguson, V. R., Hasenmueller, W. A., Daniels, M. S., Rohwer, P. D., 2011, Web-Based Geologic Maps, Databases, and HTML Pages for Marion County, Indiana
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