{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "", "description": "This data layer contains the bedrock-geology units that are represented as lines on the 1:24,000-scale bedrock-geology maps. The lines represent geologic units that are too thin to represent as polygons in a GIS data set. Examples of geologic units would be coal beds, such as the Middle Kittanning coal bed, and marine limestones, such as the Ames Limestone. The lines were originally derived from the 1:24,000-scale bedrock-geology maps, which were created between the mid 1960's through 1997. Detailed mapping at 1:24,000 scale was performed in Ohio from the 1960's to the 1980's. During that time period, 37 7.5-minute quadrangles were mapped in detail. The bedrock-geology mapping program was initiated at the Ohio Division of Geological Survey in 1991 to perform reconnaissance geologic mapping at 1:24,000 scale. The reconnaissance and detailed geologic mapping have been combined together into this GIS dataset. There will be edge-matching issues between the reconnaissance and detailed geologic maps.", "summary": "", "title": "Bedrock Geology 24K - Units Line", "tags": [], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": "NaN", "maxScale": "NaN", "spatialReference": "", "accessInformation": "Ohio Department of Natural Resources-Division of Geological Survey", "licenseInfo": "", "portalUrl": "" }