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Permanent link for this collectionhttps://hdl.handle.net/2022/3194

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The Bellevue Flood of 2008
(2008-01-13) Pavey, Richard R.
Ground Water Induced Flooding in the Bellevue, Ohio, Area, Spring and Summer 2008
(ODNR-Division of Water, Division of Geological Survey, 2009-01) Raab, James; Haiker, Bill; Jones, Wayne; Angle, Michael; Pavey, Rick; Swinford, Mac; Powers, Donovan
On March 18, 2008 ground water levels rose to 40-year high levels in the Bellevue, Ohio area. Sinkholes, rounded depressions in the landscape formed by solution of bedrock or collapse of an underlying cavity, which typically accept surface water, were acting as springs. Flooding of fields, roadways and homes occurred because of the lack of a defined surface drainage. The purpose of this report is to outline the geologic, hydrologic, and meteorological conditions that led to the flooding experienced in the vicinity of Bellevue, Ohio in the spring and summer of 2008. A combination of geologic conditions present at the surface and near-surface, and unique increases in precipitation, created a situation where a rising ground water table breached the ground surface, flowed from existing sinkholes, filled existing closed basins and karst features, and drained slowly over the course of months.
Characterization of Glacial Materials Using Seismic Refraction and Multichannel Analysis of Surface Waves
(2009-01-13) Larsen, Glenn
Update on Current Projects [Ohio Geological Survey]
(2009-01-13) Venteris, Eric
Karst of the Western Delaware County, Ohio, Region - Mapbook
(Ohio Department of Natural Resources, Division of Geological Survey, 2011) Aden, Douglas J.; Powers, Donovan M.; Pavey, Richard R.; Jones, D. Mark; Martin, Dean R.; Shrake, Douglas L.; Angle, Michael P.
To locate sinks, LiDAR was used to create an ArcGIS layer that identified low, enclosed areas. These low spots were cross referenced with known karst points, bedrock geology, aerial photography (multiple sources/ages), soil maps, drift thickness, and water well logs to locate potential sinks. Suspect locations then were visited in the field, evaluated, and photographed. Through this process we quickly learned that many of the LiDAR returns were not sinks; features such as building foundations, broken field tile, steep-walled streams, and road culverts often produced enclosed areas similar in shape to sinkholes. Many of these features were eliminated using 6-inches-per pixel aerial photography and experience from field verification. The resulting map of sinkholes and collection of photographs can be used to monitor the growth of preexisting sinkholes and the development of new karst features. Furthermore, areas of land development should be carefully planned in regions of dense karst since they are highly susceptible to pollution and may subside.
Karst of Western Delaware County, Ohio, Region
(Ohio Department of Natural Resources, Division of Geological Survey, 2011) Aden, Douglas J.; Powers, Donovan M.; Pavey, Richard R.; Jones, D. Mark; Martin, Dean R.; Angle, Michael P.
Karst terrain forms by dissolution of carbonate rocks (limestone or dolomite) and occasionally evaporates (gypsum or salt) and is characterized by features such as sinkholes (or sinks), disappearing streams, caves, and springs. The many passageways formed in karst terrain allow for high connectivity between the land surface and the water table and can bypass soil and rock layers that filter out contaminants. When materials such as fertilizer, pesticide, and waste enter sinkholes, they are rapidly transported to the water table and quickly pollute water wells, streams, and rivers. Karst also poses infrastructure complications: roads, utilities, houses, and other facilities built in karst areas are at risk of subsidence or collapse. In order to test a process for determining areas at risk from karst in Ohio, an area encompassing Western Delaware and bordering counties was selected. Rapidly developing and known to contain karst, Delaware County is close to the Ohio Geological Survey’s main office, so field verification could be easily accomplished while sink-locating methods were refined. To locate sinks, LiDAR was used to create an ArcGIS layer that identified low, enclosed areas. These low spots were cross referenced with known karst points, bedrock geology, aerial photography (multiple sources/ages), soil maps, drift thickness, and water well logs to locate potential sinks. Suspect locations then were visited in the field, evaluated, and photographed. Through this process we quickly learned that many of the LiDAR returns were not sinks; features such as building foundations, broken field tile, steep-walled streams, and road culverts often produced enclosed areas similar in shape to sinkholes. Many of these features were eliminated using 6-inches-per pixel aerial photography and experience from field verification. The resulting map of sinkholes and collection of photographs can be used to monitor the growth of preexisting sinkholes and the development of new karst features. Furthermore, areas of land development should be carefully planned in regions of dense karst since they are highly susceptible to pollution and may subside.
Potential for Mineable Bedrock in the Findlay 30 x 60 minute quadrangle
(Ohio Department of Natural Resources; Division of Geological Survey, 2011-02) Venteris, Erik R.; Shrake, Douglas L.; Larsen, Glenn E.; Angle, Michael P.; Pavey, Richard R.; Wolfe, Mark E.
The Ohio Department of Natural Resources (ODNR), Division of Geological Survey has completed a reconnaissance map showing areas of mineable bedrock, including shale, limestone, and dolomite, likely covered by thin surficial materials (glacial drift) in the Findlay, Ohio, 30 x 50-minute (1:1,100,000-scale) quadrangle. The main purpose of this map was to create a reconnaissance-level map that shows the potential for mining carbonate and shale bedrock in this quadrangle. We sought to create this map from as many existing ODNR Division of Geological Survey maps and GIS datasets as possible. The map shows areas of surficial materials in increments of 10 ft and totaling less than 40 ft overlying Silurian- and Devonian-age dolomite and limestone, and it also shows a limited area in the southeastern most portion of the quadrangle where surficial materials (totaling less than 20 ft) overlay potential Devonian-age shale resources.
Potential for Mineable Bedrock in the Marion 30 X 60 minute quadrangle
(Ohio Department of Natural Resources, Division of Geological Survey, 2011-02) Shrake, Douglas L.; Venteris, Erik R.; Larsen, Glenn E.; Angle, Michael P.; Pavey, Richard R.; Wolfe, Mark E.; Powers, Donovan M.
The Ohio Department of Natural Resources (ODNR), Division of Geological Survey has completed a reconnaissance map showing areas of mineable bedrock, including shale, limestone, and dolomite, likely covered by thin surficial materials (glacial drift) in the Marion, Ohio, 30 x 50-minute (1:1,100,000-scale) quadrangle. The main purpose of this map was to create a reconnaissance-level map that shows the potential for mining carbonate and shale bedrock in this quadrangle. We sought to create this map from as many existing ODNR Division of Geological Survey maps and GIS datasets as possible. The map shows areas of surficial materials in increments of 10 ft and totaling less than 40 ft overlying Silurian- and Devonian-age dolomite and limestone, and it also shows a limited area in the easternmost portion of the quadrangle where surficial materials (totaling less than 20 ft) overlay potential Devonian-age shale resources.
Potential Sand and Gravel Resources of the Mansfield 30 x 60 minute quadrangle
(Ohio Department of Natural Resources; Division of Geological Survey, 2011-03) Venteris, Eric R.; Shrake, Douglas L.; Larsen, Glenn E.; Pavey, Richard R.; Schumacher, Gregory A.
The Ohio Department of Natural Resources (ODNR), Division of Geological Survey has completed a reconnaissance map showing areas of mineable sand and gravel resources in the Mansfield, Ohio, 30 x 60 minute (scale 1:100,000) quadrangle. The main purpose of this map was to create a reconnaissance-level map that would show the potential for mining sand and gravel in this quadrangle. The map shows areas of surficial materials in increments of 10 feet and then differentiates sand, sand and gravel, and ice-contact deposits from finer grained materials, such as glacial till, lacustrine clay and silt, and alluvial materials. The sand and sand-and-gravel units include both surficial and buried outwash and valley train deposits and ice-contact deposits, such as kames, kame terraces, and eskers. To determine if a sand-and-gravel deposit was economically viable, this map shows the total thickness or accumulation of sand and gravel in the Mansfield 30 x 60-minute quadrangle.
Potential Sand and Gravel Resources of the Canton 30 x 60-Minute Quadrangle, Ohio
(Ohio Department of Natural Resources, 2011-08) Pavey, Richard R.; Aden, Douglas J.; Larsen, Glenn E.; Angle, Michael P.; Wolfe, Mark E.
The Ohio Department of Natural Resources (ODNR), Division of Geological Survey has completed a reconnaissance map showing areas of mineable sand and gravel resources in the Canton, Ohio, 30 x 60-minute 1:100,000-scale quadrangle. The main purpose of this map was to create a reconnaissance-level map that would show the potential for mining sand-and-gravel in this quadrangle. The map shows areas of surficial materials in increments of 10 feet and then differentiates sand, sand and gravel, and ice-contact deposits from finer grained materials, such as glacial till, lacustrine clay and silt, and alluvial materials. The sand and sand-and-gravel units include both surficial and buried outwash and valley train deposits and ice-contact deposits, such as kames, kame terraces, and eskers. This map was created to show the total thickness or accumulation of sand and gravel in the Canton 30 x 60-minute quadrangle. The thickness of sand-and-gravel deposits helps determine if it is economically viable.
Suitablility for Solid-Waste Disposal in the Lorain 30 x 60-Minute Quadrangle
(Ohio Department of Natural Resources, 2011-09) Pavey, Richard R.; Larsen, Glenn E.; Angle, Michael P.; Aden, Douglas J.; Jones, D. Mark
The Ohio Department of Natural Resources (ODNR), Division of Geological Survey has completed a reconnaissance map showing areas suitable for solid waste disposal in the Lorain, Ohio, 30 x 50-minute (1:1,100,000-scale) quadrangle. The main purpose of this map is to provide a reconnaissance level map that shows the relative suitability of various surficial materials for the disposal or containment of solid waste in this quadrangle. Our goal was to create this map from existing ODNR Division of Geological Survey maps and GIS datasets as much as possible. Consequently, the Lorain map is a derivative map based directly from the ODNR Division of Geological Survey SG-2 Series map, Surficial Geology of the Lorain and Put-in-Bay 30 x 60 Minute Quadrangles (Pavey and others, 2005). The SG-2 series features maps based upon polygons that represent a “stack” of mapped unit lithologies and thicknesses. These maps show surficial materials in increments of 10 feet within each polygon across the study area. A set of queries were run in ESRI ArcGIS to determine the range of thickness and nature of the sediments. The main premise of this map is to specify areas of thick, fine-grained glacial till and glaciolacustrine silt and clay deposits for solid-waste disposal and containment. A minimum of 30 feet of fine-grained material was deemed necessary for waste disposal for areas where the drift overlies shale; siltstone; or interbedded, shaley limestone. If the fine-grained material was directly overlying an aquifer, the minimum required thickness was increased to 50 feet. Aquifers included sand and gravel, sandstone, limestone, and dolomite. Areas with over 20 feet of sand and gravel or sand at the surface (e.g., kames, beach ridges) were excluded as were areas with alluvium (active streams) and organic deposits at the land surface. The main factor in the decision-making process was to have adequate fine-grained materials overlying the aquifers.

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