Fossil collecting from the Middle Devonian Silica Formation, Paulding, Paulding County, northwest Ohio
Michael R. Sandy, Dave Mielke, Alex Fabian, 2012. "Fossil collecting from the Middle Devonian Silica Formation, Paulding, Paulding County, northwest Ohio", On and around the Cincinnati Arch and Niagara Escarpment, Michael R. Sandy, Daniel Goldman
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This field trip will be to a working limestone quarry near Paulding, Paulding County, Ohio, a little over 100 mi (160 km) north of Dayton, Ohio. The quarry is working Middle Devonian strata: the Dundee Formation and overlying Silica Formation and Tenmile Creek Dolomite of the Traverse Group. The focus of the trip will be the fossiliferous Silica Formation (Silica shale)—collecting from blocks of rock from recent quarry blasting. At Paulding, the thickness of the Silica Formation is reduced compared to farther north in the vicinity of Sylvania, Ohio. The most common fossils are brachiopods, bryozoans, corals, and trilobites. The visit will be timed with a recent blasting of the quarry’s western rock face. Be aware that the terrain is uneven, and care must be exercised while fossil collecting. The quarry and adjacent cement plant at Paulding are operated by LaFarge.
Figures & Tables
This volume, produced in conjunction with the GSA North-Central Section Meeting held in Dayton, Ohio, April 2012, has a mix of papers, ranging from stratigraphy, paleontology, and hydrogeology, to geomorphology, drainage basins, and building stones. The geographic spread of the chapters focuses mainly on an area bounded by those counties adjacent to Montgomery County, but also extends beyond-from Paulding County in the north to Georgetown, Kentucky, in the south. Topics include the Silurian stratigraphy of southwestern Ohio, drainage basins of the Mad River and Little Miami River, the relationship between geology and groundwater of the Inner Bluegrass Region, Kentucky (and its connection to the distilling and aging of bourbon), and the building stones of Dayton, as well as an introduction to the geology of the Dayton area.