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OHIO DEPARTMENTOF NATURAL RESOURCES DIVISION of GEOLOGICAL SURVEY Reference No STATE OF OHIO DEPARTMENT OF NATURAL RESOURCES DIVISION OF GEOLOGICAL SURVEY Reference No. 24 Lawrence H. Wickstrom, Chfef Valley Pike VOCs EPA ID No. OHN000510489 Open-File Report 2012-1 GEOLOGY OF THE DAYTON REGION IN CORE AND OUTCROP-A WORKSHOP AND FIELD TRIP FOR CITIZENS, ENVIRONMENTAL INVESTIGATORS, GEOLOGISTS, AND EDUCATORS By Gregory A. Schumacher. Michael P. Angle, Brian E. Matt, and Douglas J. Aden Prepared for the 2012 Geological Society of America North-Central Section meeting in Dayton, Ohio Columbus 2012 DISCLAIMER The information contained herein has not been reviewed for technical accuracy and conformity with current ODNR Division of Geological Survey standards for formally published materials. The ODNR Division of Geological Survey docs not guarantee this information to be free from errors, omissions, or inaccuracies and disclaims any responsibility or liability for interpretations or decisions based thereon. Cover photo: Steam Boat Rock- Large slump block of Cedarville Dolomite resting in the bed of the Little Miami River at Clifton Gorge State Nature Preserve. Recommended citation: Schumacher, G.A.,Angle, M.P., Matt, B. E., and Aden, D.J., 2012, Geology of the Dayton region in core and outcrop- A workshop and field trip for citizens, environmental investigators, geologists, and educators: Ohio Department of Natural Resources, Division of Geological Survey Open-File Report 2012·1, 58 p. AGENDA MORNING WORKSHOP 9:00-10:00 A.M. Welcome; Geology of the Dayton Region 10:00-11:00 A.M. Utility of ODNR Division of Geological Survey map products 11:00-12:00 l'.l\1. Geology of the Dayton Region in core (hands-on exercises) AFTERNOON FIELD TRIP 1:00 I'.M. Depart Dayton Convention Center 1:00-1:30 P.M. Drive to Oakes Quarry Park 1:30-2:50 l'.l\1. STOP 1: Oakes Quarry Park 2:50- 3:00 I'.M. Drive to Clifton Gorge State Nature Preserve 3:00-4:20 P.l\1. STOP 2: Clifton Gorge State Nature Preserve 4:20-5:00 P.M. Fill out evaluations; return to Dayton Convention Center WORKSHOP AND FIELD TRIP LEADERS Gregory A. Schumacher Ohio Department of Natural Resources Division of Geological Survey H. R. Collins Laboratory 33307 South Old State Road Delaware, OH 43015 (740) 548-7348, ext. 125 greg.schu [email protected] tc .oh. us Michael P. Angle Ohio Department of Natural Resources Division of Geological Survey 2045 Morse Road, Bldg. C-2 Columbus, OH 43229-6693 (614) 265-6602 [email protected] Brian E. Matt DLZOhio 6121 Huntley Road Columbus, OH 43229 (614) 848-4141 [email protected] Douglas J. Aden Ohio Department of Natural Resources Division of Geological Survey 2045 Morse Road, Bldg. C-2 Columbus, OH 43229-6693 (614) 265-6579 doug.aden@dnr. statc. oh .us iii CONTENTS Page Introduction .. +••·• · ··~~····~·-·~·-....9·· ·····•r• .. ·······························································,·••••·•··· ..· ··········· 1 Geology of the Dayton region .................... .............. ...... .. .. ............. .. ............................... ..... 1 What geologic maps should I usc to determine the geology bencnth my feot? .................. 5 What is rock coring?.............................................................................................................. 5 Fi{lld trip road log .. .. ... .............. ... .. .. .. .. ... .. .. .. .. .. ... .. .. ... .. ........... .. ....... .•.. ... .. ........ ........... ... .. .. 7 Stop 1. Oakes Quarry Park .................................................................................................. 8 Introduction ~ ......................................................... ~ ........... ~ .......... ............... ~~ · ······ · ... ········... ·····....................... 8 Geology of the Oakes Qunrry Park............................................................................... 8 Early Silurian ..............................................................................H.. ....................... 8 Ice· Age ........ ............................................ .................. ~ .................~ ........ ~ .................... ,. ..................... ~-· · ·~ · .... ... ~ . ...... 12 Stop 2. Clifton Gorge State Nature Pr,cscrve ...................................................................... 14 Acknowledgments................................................................................................................. 17 References cited ......................... ....... .. ...... ..... ...... .. ....... ........................................................ 17 Fact Shoots........................................................................................................................... 18 Glacial till....................................................................................................................... 18 Glacial sand and gravel deposits .................................................................................. 20 Glocial sand deposits..................................................................................................... 23 Glocinl lacustrine d~posits ..................... ....................................................................... 26 Glacial silt deposits........................................................................................................ 29 Glocial clny deposits ............................................... -..................................................... 32 Orgnnic deposits....................................................................................... ..................... 35 Cedarville )){)lomite................................ ................................................ .. ..................... 38 Springfield Dolomite.................. ....... .. .................................................... .. .............. ....... 40 Euphemia Dolomite.......................... .. .................................................. .. ....... .... ............ 42 Mosaic Shale ... ... ... .. .. .. ......... ...... ......... ...... ...................... ....... ............. .... ..... .. .. ... .. .. .. ..... 44 Ost:<~od. Shale.......................................................................... ............................. .. .. ....... 46 Brassfield Formation ......... .......................................................... ,................................. 48 Drn.kcs Formation.......... ................................................................................................ 51 Whjtcwater Fonnation .................................................................................................. 53 Ljbcrty Formlltion.............. .. .. ... .. ..... ... ... ... .. ...... .. ... ........ .... ... .. .. .. .. .. .. .. .. .. .. .. .. .. 55 \Ynyncsville Formation............................................................. ............................... .... .. 57 FIGURES 1. Bedrock ncar-surface nnd subsurface stratigraphy of the Dayton region................. 2 2. Location of the Dayton region in Ordovician time...................................................... 3 3. Ohio karst areas............................................................................................................ 4 4. Typical drill bits ..............- ............................................................................................ 6 5. Bedrock geologic map of Oakes Quarry Pn rk.... ... .. ..... ............. ...... .. .. ..... .................... 9 6. The eastern high wall of Oakes Quarry Park displaying tbe chnractcristk limostonc of the Brnssficld Formation....................................................................................... 10 7. BclfastMemb~rofthe Brassfield Formation in Oakce Queny Park floor ................ 10 8. Ros<~ diagram illustrating the prominent joint orientations prca-crvcd within the Dclfn.st Member of the Brassfie]d Formation ........................, .................................. 11 9. Postulated position of the continents during tbc Late Ordovician!Enrly Silurien and Middle Pennsylvanian........................................................................................ 11 10. The polished upper surface of the Brassfield Formation............................................ 13 11. Rose diagram showing that the movement of glacial icc and meltwater was from the northwest to the southeast........................................................................................ 13 12. Bedrock geologic map of the Clifton Gorge State Nature Preserve ........................... 15 13. Stages of gorge formation of Little Miami River in the Clifton, Ohio, area .............. 16 iv GEOLOGY OFTHE DAYTON REGION IN CORE AND OUTCROP-A WORKSHOP AND FIELD TRIP FOR CITIZENS, ENVIRONMENTAL INVESTIGATORS, GEOLOGISTS, AND EDUCATORS by Gregory A. Schumacher, Michael P. Angle. Brian E. Mott, and Douglas J. Aden INTRODUCTION distinguish one geologic unit from the underlying and overly­ ing units. For example, if you turn ahead to the Brassfield The goal of today's core workshop and field trip is to Formation fact sheet (p. 48), you will find an introductory learn about the geology of the Dayton, Ohio, region using paragraph describing: (1) the characteristic rock or rocks Ohio Department of Natural Resources (ODNR), Division found in the Brassfield, (2) the environment present in the of Geological Survey (Survey) mapping products and indi· Dayton region when the Brassfield was deposited, (3) how vidual fact sheets for a future field guide entitled: Ohio's the Brassfield was named, (4) the Brassfield's mapped
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