An Affiliate (1963) of the Association of Petroleum Geologists (AAPG) Welcome to the Ohio Geological Society's 37th year! Time:

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1 P.O. Box COLUMBUS, OHIO An Affiliate (1963) of the Association of Petroleum Geologists (AAPG) The Newsletter of the Ohio Geological Society August, Officers PRESIDENT'S COMMENTS... President Amy L. Burke CGAS Exploration, Inc. P.O. Box Columbus, OR (614) Ext. 264 (614) (Fax) Vice President Steven P. Zody Zody Geoscience Services P.O. Box 921 Wooster, OR (330) (330) (Fax) Secretary' John L. Forman CGAS Exploration, Inc. P.O. Box Columbus, OR (614) Ext. 215 (614) (Fax) Treasurer.. J ames McDonald Ohio Geological Survey 4383 Fountain Square Dr. Columbus, OR (614) (614) (Fax) jim.mcdonald@dnr.state.oh.us Past President William M. Ril<e Consulting Geologist Box 763 Worthington, OR (614) thegeologist@juno.com Welcome to the Ohio Geological Society's 37th year! Before I begin, I would like to use this opportunity to thank last year's officers - Bill Rike, Steve Zody, and Dan Hall. Now I want to introduce this year's officers. Our Vice-President is Steve Zody, owner of Zody Geoscience Services, and our new monthly Program Chairman. This year's schedule is filling up fast so contact Steve with any speaker requests as soon as possible. John Forman, President of CGAS Exploration, Inc. is the new Secretary. With Stephanie Bailey's help, John will be getting an informative newsletter to you at the beginning of each month. Right John? This years Treasurer is Jim McDonald, who works at the Ohio Geological Survey. Sorry folks, we did hand our money over to a government employee. Jim will be responsible for our current healthy financial account. Yes, we are still financially healthy and looking for ways to give back to our membership by sponsoring special events such as a Christmas party, a workshop, and any other ideas we get from you. Along with John, I also work for CGAS Exploration. To start the season with a bang, we have scheduled TWO events for the month of September. A field trip to Seneca Caverns has been scheduled for September 11th. It is on a Friday, so ask your boss (if you have one), if you can have the day off to study the Karst features and cave development. This is a necessary part of every geologists' education. See the insert for all the necessary information. We have also scheduled a joint luncheon meeting with SPWLA on September 17th in Cambridge, Ohio at the Cambridge Country Club. Speaker Dennis Hull, with the Ohio Geological Survey will discuss the locations of known karst features and probable karst areas in Ohio. I am looking forward to seeing you at both events in September and serving you as President of the Society. Next Meeting: Friday, September 1/; 1998 Time: Place: l1:jo s.rn. Cambridge Country Club Cost: $15.{)(} per person RSVP: John JJO Ext. 167

2 Speaker of the Month... Dennis Hull- Karst and probable karstfeatures map of Ohio; i:500,ooo-scale digital openjile report. The ODNR, Division of Geological Survey will soon release a 1:500,000-scale digital map of Ohio showing the locations of known karst features and probable karst areas. The map was prepared under a grant from the Ohio Low- Level Radioactive Waste Facility Development Authority, and was developed as a screening tool to address Section , Division (A)(13) of the Ohio Revised Code which states that "...[a low-level radioactive waste] disposal site shall not be located in areas of known or probable karst." (Note: LLRW disposal siting activities in Ohio terminated September 30, 1997.) Cave inventories, theses and other literature and field evidence provided documentation for known karst features. Aerial photographs, soil surveys, 1:24,000-scale bedrock geology and bedrock topography maps, and other sources allowed delineation of probable karst features. Probable karst areas were defmed as areas that: 1) lie within a half-mile of a known or probable karst feature, and 2) are underlain by carbonate bedrock with less than 20 feet of unconsolidated and/or non-carbonate bedrock overburden. Known and probable karst features, and probable karst areas were plotted on 1:24,000-scale, USGS topographic quadrangles. The location of karst features and probable karst areas were digitized into an ArcInfo database for utilization in GIS-based screening applications and generation-of an open- ~ - file, 1:500,000-scale map depicting karst terrains of Ohio. Probable karst areas depicted on the map are located primarily in: 1) north central Ohio where a broad band of solution-collapse depressions extend from northeastern Seneca County to Lake Erie, 2) central Ohio where thin-drift covered limestone uplands lie adjacent to the Scioto and Olentangy rivers, 3) southern Ohio carbonate regions lying beyond the Wisconsinan glacial boundary, and 4) west central Ohio in the Bellefontaine Outlier uplands of Logan and Champaign counties. THE AUTHOR: Dennis N. Hull obtained BS and MS degrees in Geology from Wright State University in 1974 and 1976 respectively. In 1977, he was hired as a geology by the ODNR, Division of Geological Survey and assumed his current position as Assistant State Geologist and Deputy Chief of the Division of Geological Survey in His primary administrative responsibilities at the Survey include oversight of the Division's Coal Geology, Bedrock Mapping, Environmental and Surficial Geology, Petroleum Geology, and Industrial Minerals Groups; personal research interests include characterization of land areas for solid-waste disposal, aggregate-resource mapping, surficial-materials map-. ping, and karst-terrain mapping. He is an active member of the Ohio Section. of the American Institute of Professional Geologists and a member of the Society of Mining Engineers. Ohio Department of Natural Resources Division of Geological Survey Announcement - Mather Medal Award Dr. Adriaan Janssens, a past geologist with the Ohio Geological Survey and long-time consulting geologist, has recently been named as the 1998 recipient of the Ohio Geological Survey's prestigious Mather Medal. The medal, named for Ohio's first state geologist, William W. Mather ( ), is given to an individual who has made an outstanding contribution to the advancement of knowledge of Ohio geology. Dr. Janssens, Arie to friends and coworkers, is a native of the Netherlands. He got his BS at Kent State and Masters and Doctoral Degrees at Ohio State University. Starting with his ten years as a geologist and then head of the Subsurface Geology Section of the Ohio Geological Survey, Arie has become a recognized expert and authority on the Cambrian to Devonian rocks of Ohio. Since his stint with the Survey, Arie has been a consulting geologist in Ohio while continuing his personal research on the lower Paleozoic rocks. An awards banquet will be held in Dr. Janssens' honor Friday, September 25, 1998 from 6:00-10:00 p.m. at the Ramada University Hotel, 3110 Olentangy River Road, Columbus, Ohio. - The cost to attend the banquet is $ For reservations, please contact David Stith by September 11, at the Ohio Geological Survey, (614) SENECA CAVERNS FIELD TRIP SEPTEMBER 11, 1998 The Ohio Geological Society will be travelling to Bellevue, Ohio for a field trip to "The Caviest Cave in the USA" - Seneca Caverns. This field trip will be at no cost to you so we hope many of you can attend. We would like everyone to be there by noon. If you would like to attend, please call John Forman or Stephanie (614) Also, please let them know when you call if you are interested in carpooling arrangements from Columbus.

3 64th YEAR A REGISTERED OHIO NATURAL LANDMARK SENECA CAVERNS P.O. BOX 595, FLAT ROCK, OHIO Discovered 1872 BELLEVUE, OHIO "Rain or Shine" FROM OHIO TURNPIKE Leave Turnpike at Exit 6A. Take Rt. 4 south 8.8 miles to Seneca Caverns' directional sign. Turn right and follow signs. OTHER THAN TURNPIKE From Bellevue take SR 269 south approximately 4 miles to Caverns. HOURS The Caverns are open 7 days per week Memorial Day through Labor Day, 9:00 AM to 7:00 PM. During the months of May (prior to Memorial Day), September (after Labor Day) and to mid October, the Caverns are open weekends (Saturday and Sunday) only from 10:00 AM to 5:00 PM. Since considerable walking and numerous steps are involved, some elderly people and those with medical problems may find the tour too strenuous. GEM STONE MINING FOR SEMI PRECIOUS GEMS R.C. 8ell REV 97 AP LASER PHOTO, CHRIS WALKER Printed in U.S.A. n7~ Ca<ded C~ tit de USA;

4 Explore Seneca Caverns n()mo,~~~ ~~" Preserved close to its original natural state, Seneca Caverns is a unique and educational adventure which you will always remember. Former Ohio Governor James A. Rhodes: "... a splendid attraction that should be seen by all Americans and especially Ohioans." 4th Level-Big Room The one hour guided walking tour takes you 110 feet underground through seven rooms or levels. The largest room is 250 feet in length. At the lowest level, which is 110 feet below the surface, visitors will view "Ole Mist'ry River," the crystal clear flowing stream which is part of the vast groundwater system which underlies the surrounding region. The caverns are electrically lighted and tours are conducted by a knowledgeable and competent guide/interpreter staff. During the summer months, the tours depart approximately every 20 minutes. A light jacket is recommended as the caverns temperature is a constant refreshing 54 degrees Fahrenheit. It is also suggested that comfortable shoes be worn for the tour. Available for your use, at no additional a clean shaded picnic area. charge, is Seneca Caverns is one of Ohio's largest underground caverns, and one of America's most fascinating geological wonders. I VISA I Earth Quake Attic Group Rates Available Upon Request (419) omo NA;:~9;'6~~A~:i{~S ~QP:tff! ~ American Cave O!oo=d- ~ JQATION ~ COiCCAOC

5 OHIO GEOLOGICAL SOCIETY- PRE-MEETING TECHNICAL SEMINAR PETROLEUM SEISMOLOGY This one-day course features lecture topics on many aspects of petroleum exploration through the use of seismic data. Over the past five years many advancements in seismic acquisition, processing, and interpretation have changed the way a geoscientist finds oil and gas. Each seismic exploration process will be presented in short lecture periods by the feature lecturer, Bob Hardage, Senior Research Scientist at the Bureau of Economic Geology, Austin, Texas. Special emphasis will be placed on the workstation environment and the advantages of using computers to aid in seismic interpretation. Examples of 2D and 3D seismic case histories will be shown. In addition, a regiona12d seismic line will be processed "live" throughout the day. Incremental steps in the process will be reviewed and discussed in an open forum. Numerous on-site PC workstations, with instructors, will be available for hands-on interpretation experience. Learning centers for the latest field seismic acquisition equipment also will be on-site. Course participants will be eligible for 0.8 Continuing Education Units (CEU). Bob A. Hardage is a Senior Research Scientist at the Bureau of Economic Geology and Lead Scientist for the Exploration Geophysics Laboratory. He received a Ph.D. in physics from Oklahoma State University after completing a NASA-sponsored IN THE DIGITAL AGE investigation of micrometeorite impact on space vehicles. He began work for Phillips Petroleum Company in 1966 and concentrated on geophysical modeling, seismic imaging, seismic stratigraphy, vertical seismic profiling, and exploration management. After serving as Exploration Manager, Asia and Latin America, he left Phillips in 1988 to join Western Atlas International, Inc., where he was Vice President of Geophysical Development and Marketing for Atlas Wireline Services until Dr. Hardage has authored over 60 technical papers, taught numerous public courses on 3D seismic technology, seismic stratigraphy, and vertical seismic profiling in the U.S., Europe, and Asia, and conducted several internal, continuing education courses for individual companies. More than 3,500 copies of his book, Vertical Seismic Profiling, have been purchased by explorationists, and the book is in its third printing. He has also written a second book, Seismic Stratigraphy, prepared chapters in AAPG Memoir 39 - Seismic Stratigraphy II, the SEG book Reservoir Geophysics, and the combined AAPG-SEG publication 3D Seismic Atlas; and published a third book, Crosswell Seismology and Reverse VSP. He is a past Editor of Geophysics. His current interest is the development of multicomponent seismic technology for improved characterization of reservoir systems. COURSE SCHEDULE-WEDNESDAY, OCTOBER 7TH, 1998 (BH)=Bob Hardage (ESP)=Elite Seismic Processing-Don Jennings 7:45-9:00 a.m. 9:00-9:15 9:15-9:30 9:30-10:15 10:15-10:30 10:30-11:00 11:00-11:30 11:30-11:45 11:45-1:00 1:00-1:30 1:00-1:45 1:45-2:30 2:30-2:45 2:45-3:00 3:00-4:00 4:00-4:30 5:00p.m. Seminar registration and refreshments History of Seismology (BH) Seismic processing, Ohio data (ESP) Seismic acquisition with emphasis on 3D (BH) Seismic processing, Ohio data (ESP) Break - PC workstation time Seismic processing with emphasis on 3D (BH) Seismic processing, Ohio data (ESP) Lunch and PC workstation time 2D seismic interpretation leading to 3D interpretation (BH) Seismic processing, Ohio data (ESP) 3D seismic interpretation (BH) Break - PC workstation time Final version - Ohio data (ESP) 3D case history (BH) PC workstation time Eastern Section AAPG meeting Ice Breaker Cost: $95.00 SPACE IS LIMITED. PRE-REGISTEREARLY!

6 PETROLEUM SEISMOLOGY A seminar sponsored by the Ohio Geological Society in conjunction with AAPG Eastern Section Meeting in the digital age Featured lecturer October 7, :00 a.m. - 4:30 p.m. Senior Research Scientist II Lecture topics Bureau of Economic Geology University of Texas, Austin II II II II II New technology and advancements in... 2D and 3D seismic acquisition 2D and 3D seismic processing 2D and 3D seismic interpretation Workstation environment 3D seismic case histories Step-by-step on-site processing of seismic data PC workstation tutored access and exercises (12 on-site workstations) On-site state-of-the-art acquisition systems Breakfast snacks, coffee, and drinks Sit-down Afternoon lunch snack Geoscientists, operators, engineers, managers, administrators, students, land men, drillers Ramada University Hotel 3110 Olentangy River Rd. Columbus, Ohio (61~ ~ If attending both AAPG Eastern Section Meeting (Oct. 7-10) and Seismic Seminar, sign up and pay for seismic seminar on AAPG registration form. If attending Seismic Seminar only, fill in this registration form and send to: Ohio Geological Society, P.O. Box 111, Columbus, OH 43019, Attn: Seismic Seminar Questions? Call Bryan Roth (614) rothexpl@ix.netcom.com or Bill Rike (614) Cost $ Checks only please, payable to Ohio Geological Society

7 Come to Columbus & [oin us in the Search for New Horizons 1998 Eastern Section Meeting American Association of Petroleum Geologists October 7-10, 1998 Columbus, Ohio Hosted by: The Ohio Geological Society & The Ohio Geological Survey Field trips to Serpent Mound and Sylvania Quarry Guest programs.deal room Seismic seminar Earth Science Teachers' program PROPOSED Sequence Stratigraphy-Applications to Exploration & Development Enhanced Recovery Opportunities/Case Studies Regional Aspects of the Knox Unconformity New Play Concepts in Mature Basins Redeveloping Old Fields Knox Field Studies 3D Seismic Applications & Opportunities Case Histories & Solutions for Environmental Problems Silurian Reef Plays SESSIONS: Evaluation & Prediction of Stratigraphic Traps Geological Aspects of Horizontal Drilling Exploitation of Fractured Reservoirs Coalbed Methane in the Eastern U'.S. Formation Evaluation Technology & Techniques Interpretation of Structural Plays Strategies for Success as an Eastern Independent Historical Retrospect of Eastern Plays/Fields/ People Mother Nature-Our Environmental Ally Advancements in Eastern Coal/Minerals Over for more details -

8 27th Annual Meeting Ramada University Hotel Columbus, OH Oct. 7-10, 1998 General Chair lorry Wickstrom, Ohio Geological Survey 4383 Fountain Square Dr. Columbus,OH ph: (614) Hosted by: Ohio Geological Society Ohio Geological Survey Technical Program Chair Steve lody, lody Geoscience P.O. Box 921 Wooster, OH ph: (330) EXHIBIT SPACE will be available throughout Contact: Chuck Lowe, Consultant 3635 Rome Corners Rd. Galena, OH (614) the meeting. SPONSORSHIPS - Sponsor a session, coffee break, event, room, or entertainment. Contact: Pete MacKenzie, CGAS Exploration, Inc Indianola Ave. Box Columbus, OH (614) DEAL ROOM - space will be available to sell/buy prospects, properties, venture opportunities. Contact: John Forman, CGAS Exploration, Inc Indianola Ave. Box Columbus, OH (614) Visit the '98 Eastern Section meeting website at:

9 PUBLICATIONS OF THE OHIO GEOLOGICAL SOCIETY P.O. Box 14304, Columbus, Ohio Janssens, A., 1970, Guidebook to the Middle Devonian rocks of North-Central Ohio, 30 p. ($2.00) Kahle, C.F., and Floyd J.C., 1972, Geology of Silurian rocks, northwestern Ohio: Field Trip Guide Book for First Annual Meeting, Eastern Section American Association of Petroleum Geologists, Columbus, Ohio 91 p. ($6.00) Ohio Geological Society, 1977, Seminar on industrial self-help programs for natural gas supplies, 55 p., 15 figs. 1 table. ($3.00) Ohio Geological Society, 1985, Clinton sandstone papers presented at the Ohio Oil and Gas Association Winter Meetings 1961 to 1978 (Abridged reprint of 1980 volume), 228 p. ($20.00) Ohio Geological Society, 1985, The new Clinton collection , 2nd printing, 243 p. Also included in this edition is the Ohio Geological Society, 1986 transcript: Deeper Clinton-Medina drilling in southeastern Ohio, from an Ohio Geological Society meeting held March 24, 1986 in Marietta, Ohio, 14 p. ($20.00) Ohio Geological Society, 1987, Principles of seismic exploration, a collection of papers from a seminar presented at the 1987 AAPG Eastern Section Meeting, Columbus, Ohio. (Out of print) Ohio Geological Society, 1987, Computer-aided analysis of geologic data, a collection of papers from a seminar presented at the 1987 AAPG Eastern Section Meeting, Columbus, Ohio. ($12.00) Shearrow, G.G., 1987, Maps and cross sections ofthe Cambrian and Lower Ordovician of central Ohio, 31 p. 8 plates. ($10.00) Ohio Geological Society, 1993, An update on Ohio's subsurface geology: Proceedings from the October 1993 symposium meeting held in Canton, Ohio. 11 papers, unbound. ($20.00) Shafer, W.E., editor, 1994, The Ohio Geological Society Anthology, the Morrow County, Ohio "Oil Boom" and the Cambro-Ordovician reservoir of central Ohio. 452 p. ($55.00) Ohio Geological Society, 1994, Major natural gas plays of the Appalachian basin and surrounding areas: Proceedings from the October 1994 symposium meeting held in Canton, Ohio. 11 papers. ($20.00) Ohio Geological Society, 1995, Structural influences on oil and gas reservoirs: Proceedings from the October 1995 symposium meeting held in Canton, Ohio. 13 papers. ($20.00) (Out of print) Ohio Geological Society, 1996, Enhanced recovery - historical development and future potential in Ohio and the Appalachian Basin, Integration of geology and geophysics in exploration: Proceedings from the October 1996 symposium meeting held in Akron, Ohio. 16 papers. ($20.00) Prices include shipping. Society. All orders must be prepaid and checks are payable to the Ohio Geological Make orders to: Ohio Geological Society Secretary/Publisher P.O. Box Columbus, OH 43214

10 MARK YOUR CALENDARS OGS Field trip to Seneca Caverns - September 11, 1998 OGS/SPWLA Joint Luncheon Meeting - September 17, Eastern Section AAPG Mtg. - October 7-10, 1998, Columbus, Ohio OOGA Fall Conference - October 22, 1998, Adams Mark Hotel, Columbus, Ohio OGS Christmas Party - December? The Ohio Geological Society P.O. Box Columbus,OH First Class Mail August, 1998 Issue I Next Meeting - September 17, 1998