Description: This data layer contains the 1:500,000-scale bedrock-geology pinchouts for Ohio. The pinchouts represent geologic units that are too thin to be represented as polygons on the Bedrock Geologic Map of Ohio. This was necessary because, in these areas, the spacing between the bounding contact lines was to close together to visualize the color used to represent the unit on the map. These geologic units are, in these areas, represented as a bold line, that is about two times the width of the line used to illustrate the contact between individual mapped units on the geologic map.
Service Item Id: 532e9efd24fe4c93b2d598d53c5ce17c
Copyright Text: Ohio Department of Natural Resources-Division of Geological Survey
Description: This data layer contains the 1:500,000-scale bedrock-geology contact lines for Ohio. The contact lines were originally derived from the 1:24,000-scale bedrock-geology maps, that were created from 1989 to 1998. The bedrock-geology mapping program was initiated at the Ohio Division of Geological Survey in the mid-1980s to perform detailed, 1:24,000-scale bedrock-geology maps. In 1991, the mapping approach was amended to a reconnaissance-mapping methodology, but retaining the 1:24,000-scale. Both detail and reconnaissance bedrock-geology maps were used as the basic information to compile the:500,000-scale Bedrock Geologic Map of Ohio.
Service Item Id: 532e9efd24fe4c93b2d598d53c5ce17c
Copyright Text: Ohio Department of Natural Resources-Division of Geological Survey
Description: This data layer contains the 1:500,000-scale bedrock-geology faults for Ohio. The faults were originally derived from the 1:24,000-scale bedrock-geology maps that were created from 1989 to 1998. The bedrock-geology mapping program was initiated at the Ohio Division of Geological Survey in the mid-1980s to perform detailed, 1:24,000-scale bedrock-geology maps. In 1991, the mapping approach was amended to a reconnaissance-mapping methodology, but retaining the 1:24,000-scale. Both detail and reconnaissance bedrock-geology maps were used as the basic information to compile the 1:500,000-scale, Bedrock Geologic Map of Ohio.
Service Item Id: 532e9efd24fe4c93b2d598d53c5ce17c
Copyright Text: Ohio Department of Natural Resources-Division of Geological Survey
Description: This data layer contains the 1:500,000-scale bedrock-geology polygons for Ohio. The polygons were originally derived from the 1:24,000-scale bedrock-geology maps, that were created between 1989 through 1998. The bedrock-geology mapping program was initiated in the mid-1980s to perform detailed, 1:24,000-scale bedrock-geology maps. In 1991, the mapping approach was amended to a reconnaissance mapping methodology, but retaining the 1:24,000 scale. Both detail and reconnaissance bedrock-geologic maps were used as the basic information to compile the 1:500,000-scale, Bedrock Geologic Map of Ohio.
Service Item Id: 532e9efd24fe4c93b2d598d53c5ce17c
Copyright Text: Ohio Department of Natural Resources-Division of Geological Survey
Value: Oda Label: Oda - Preachersville Member of the Drakes Formation, Waynesville Formation, and Arnheim shale and limestone, undivided Description: N/A Symbol: