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Geology/OIINK_BedrockTopography_Hill (MapServer)

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Service Description: This map is a digital elevation model of the bedrock surface at 3× vertical exaggeration. In regions that have a cover of Pleistocene glacial drift, the map uses the surface of the unconformity between the drift and the bedrock surface. In places outside the cover of Pleistocene glacial drift, it corresponds to a subdued version of the ground surface or to the ground surface itself. The map emphasizes the effect of the Pleistocene glaciations (see Map 3), which completely altered the drainage patterns in Illinois and Indiana. The apparently smoother surface in Missouri is an artifact of the lower data density in the map coverage from Missouri. The bedrock surface in Missouri is actually just as rugged as that in the other three states.

Map Name: Bedrock Topography

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Layers: Description: This map is a digital elevation model of the bedrock surface at 3× vertical exaggeration. In regions that have a cover of Pleistocene glacial drift, the map uses the surface of the unconformity between the drift and the bedrock surface. In places outside the cover of Pleistocene glacial drift, it corresponds to a subdued version of the ground surface or to the ground surface itself. The map emphasizes the effect of the Pleistocene glaciations (see Map 3), which completely altered the drainage patterns in Illinois and Indiana. The apparently smoother surface in Missouri is an artifact of the lower data density in the map coverage from Missouri. The bedrock surface in Missouri is actually just as rugged as that in the other three states.

Copyright Text: Illinois State Geological Survey, Prairie Research Institute, Univeristy of Illinois Urbana-Champaign

Spatial Reference: PROJCS["Earthscope",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["false_easting",0.0],PARAMETER["false_northing",0.0],PARAMETER["central_meridian",-88.8205],PARAMETER["standard_parallel_1",37.61985],PARAMETER["standard_parallel_2",40.8796],PARAMETER["latitude_of_origin",39.2497],UNIT["Meter",1.0]]


Single Fused Map Cache: false

Initial Extent: Full Extent: Units: esriMeters

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP

Document Info: Supports Dynamic Layers: false

MaxRecordCount: 1000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, AMF, geoJSON

Min Scale: 0

Max Scale: 0



Child Resources:   Info

Supported Operations:   Export Map   Identify   Find   Return Updates   Generate KML