The Geology of Klein and Conklin Quarries (Johnson Co., Iowa)
Located near Coralville and Iowa and Iowa City, Klein and Conklin Quarries provide a unique window into the Earth's past. .
Art Bettis (U of I) Weathering profile discussion (Part 1) Key words: Loess, erosion surface, landscape development, stone lines/lags, soil peds, oxidation/reduction, joint faces/polygons
Art Bettis (U of I) weathering profile discussion (Part 2) Key words: Environmental Protection Agency (EPA), landfills, leachates, permeability (matrix vs. unit), till fracture networks, modeling, vadose zone
Art Conklin Quarry glacial overview (You will need to turn up your volume!) Keywords: Pre-Illinoian till Alburnett and Wolf Creek Formations, paleomagnetic reversal, lithostratigraphy, clay mineralogy, polarity reversals, alluvial fill, paleosol
Brian Witzke & Tom Marshall (IGWS) Speaking about the sedimentary rocks at Conklin Quarry. Keywords: Corals/fossils, Pennsylvanian erosion into Devonian bedrock, carbonate mudflats, sea transgression, mud cracks
Brian and Tom (IGWS) Speaking about the geochemistry of pyrite and limestone
Images from the field (Conklin Quarry)
Quick Links
Geologic Society of Iowa Guidebook #87 Scroll down to the bottom of the page