Field Trips & Workshop
- 1. Dinosaur Trackways in Arkansas.
Saturday, 15 March.
Celina Suarez, University of Arkansas; Lynne Hehr, University of Arkansas.
- K–12 teachers are invited to attend a 4-hour workshop to learn about a dinosaur trackway site unearthed in Howard County, Arkansas, in 2011. Workshop attendees will learn about the dinosaur trackway and the types of dinosaur tracks documented there, which includes the first known occurrence of large theropod (bipedal, predatory dinosaur) trackways in Arkansas. Workshop attendees will be able to observe and photograph plaster casts of theropod tracks, learn how to manipulate an online display of the entire trackway site for their students, and be presented with a learning module on dinosaur trackways for students by Celina Suarez, noted paleontologist and assistant professor in the Dept. of Geosciences at the University of Arkansas at Fayetteville.
- 1. Hydro Days! Karst Hydrogeology of the Southern Ozarks.
15–16 March. J. Van Brahana, University of Arkansas.
- Continuing a long tradition, J. Van Brahana (professor emeritus, University of Arkansas and USGS, retired) will lead a two-day field trip through the southern Ozarks to view spectacular occurrences of mantled karst terrain, epikarst exposed by fluvial erosion, and the many caverns and springs of the region.
- 2. Middle and Late Morrowan Depositional History and Sequences, NW Arkansas.
Angela Chandler, Arkansas Geological Survey; Doy Zachry, University of Arkansas.
- This field trip will explore exposures of fluvial-deltaic exposures of middle and late Morrowan strata of the Boston Mountains physiographic province of the Ozark Plateaus and report on recent mapping results of these units.
- 3. Lower to Middle Mississippian.
Darwin Boardman, University of Oklahoma.
- This field trip will focus on a lower to middle Mississippian (middle Tournaisian–lower Visean) shelf-to-basin transect from the Burlington Shelf into the “starved megafacies” basin from southwestern Missouri to northwestern Arkansas and into northeastern Oklahoma. These stops are spectacular outcrops, several of which are reference sections for the new conodont zonation scheme presented by Boardman and others (2013).
- 4. Uppermost Mississippian Strata in the Ozarks—Recent Mapping of the Imo Interval in NW Arkansas.
Richard Hutto, Arkansas Geological Survey; Erin Smart, Weatherford Laboratories; Angela Chandler, Arkansas Geological Survey.
- The Imo Formation was proposed by Mackenzie Gordon in 1964 for a sequence of shale with interbedded sandstone and conglomerate above the Pitkin Limestone and below the Prairie Grove Member of the Hale Formation. During the past few years, the Imo has been mapped in three counties, totaling 84 square miles of outcrop area. This field trip will examine the principal reference section of the Imo interval and then look at recently mapped exposures.
- 5. Quaternary Geology and Geomorphology of the Buffalo National Scenic River.
Stephanie Shepherd, Bloomsburg University; Amanda Keen-Zebert, Desert Research Institute; Mark Hudson, USGS.
- The Buffalo National Scenic River is America’s first and foremost scenic river. Rates of erosion, channel migration, and floodplain reworking along the river course and the control of fractured mantled karst on surface water and groundwater flow patterns and pathways are significant to current management issues related to land use change, particularly the development of confined animal feeding operations (CAFOS) within the watershed. The trip includes at least four stops with moderate hiking.
- 6. Slaughter in the Rocks and Other Geological Aspects of the Battle of Pea Ridge.
Joe Hannibal, Cleveland Museum of Natural History; Kevin R. Evans, Missouri State University; Angela Chandler, Arkansas Geological Survey; Gary Michelfelder, Missouri State University.
- This one-day field trip will travel to Pea Ridge National Military Park, located less than 40 miles from Fayetteville, for a geology- and military-history–focused exploration of the Pea Ridge battlefield. Most stops will be located along the Park loop road. This trip should be of interest to both professional geologists and to accompanying non-geologist guests interested in the Civil War.