Generalized Correlation Chart of Bedrock Units In

Home , Bedford Shale, Bisher Formation, Cuyahoga Formation, Estill Shale, Grant Lake Formation, Lexington Limestone

STATE OF OHIO THIS PUBLICATION WAS FINANCED IN PART THROUGH A GRANT George V. Voinovich, Governor GENERALIZED CORRELATION CHART OF BEDROCK UNITS IN OHIO FROM THE OHIO ENVIRONMENTAL PROTECTION AGENCY DEPARTMENT OF NATURAL RESOURCES UNDER PROVISIONS OF SECTION 319 (h) OF THE CLEAN WATER ACT AS AMENDED IN 1987. Donald C. Anderson, Director OPEN-FILE REPORT 98-2 DIVISION OF GEOLOGICAL SURVEY Compiled by Glenn E. Larsen, September 1998 Thomas M. Berg, Chief EXPLANATION This correlation chart is a product of the Ohio Department of Natural Resources, Division of Root, S. I., Rodriguez, Joaquin, and Forsyth, J. L., 1961, Geology of Knox County: Ohio Division of Kleffner, M. A., 1990, Wenlockian (Silurian) conodont biostratigraphy, depositional environments, and CHRONOSTRATIGRAPHIC UNITS Geological Survey and was prepared as part of a grant (project no. 95 (h) EPA-15) from the Ohio Geological Survey Bulletin 59, 232 p. depositional history along the eastern flank of the Cincinnati Arch in southern Ohio: Journal of Environmental Protection Agency under provisions of Section 319 (h) of the Clean Water Act as Scatterday, J. W., 1963, Stratigraphy and conodont faunas of the Maxville Group (Middle and Upper Paleontology, v. 64, no. 2, p. 319-328. amended in 1987. Funding for the geologic mapping that is the basis for the mapped units shown Mississippian) of Ohio: Ohio State University Ph.D. dissertation (unpub.), The Ohio State Kleffner, M. A., 1994, Conodont biostratigraphy and depositional history of strata comprising the on the chart was provided by the U.S. Geological Survey (National Cooperative Geologic Mapping University, 162 p. Niagaran sequence (Silurian) in the northern part of the Cincinnati Arch region, west-central Ohio, and

M NORTH

M GLOBAL E AMERICAN AREA 1 AREA 2 AREA 3 AREA 4 AREA 5 AREA 6 AREA 7 AREA 8 AREA 9 AREA 10 AREA 11 AREA 12 AREA 13 AREA 14 Program, STATEMAP component), the Ohio Department of Transportation, and the Ohio Shaver, R. H., coordinator, 1985, Midwestern Basin and Arches region, Correlation of Stratigraphic Units evolution of Kockelella walliseri (Helfrich): Journal of Paleontology, v. 68, no. 1, p. 141-153. E H

T Environmental Protection Agency. This stratigraphic correlation chart shows the regional correlation of North America (COSUNA) Project: American Association of Petroleum Geologists, 1 sheet. Larsen, G. E., 1991, Development of Silurian and Devonian lithostratigraphic nomenclature, central- T S

A and relationships of most surface-bedrock units identified on the 7.5-minute-scale reconnaissance western and northwestern Ohio: Ohio Division of Geological Survey Open-File Report 91-1, 1 sheet. Y Stout, Wilber, 1918, Geology of Muskingum County: Ohio Division of Geological Survey Bulletin 21, 351p. R S

E bedrock-geology maps on open file at the Division of Geological Survey. The generally Szmuc, E. J., 1957, Stratigraphy and paleontology of the Cuyahoga Formation of northern Ohio: Ph.D. Larsen, G. E., 1994, Regional bedrock geology of the Ohio portion of the Lima, Ohio-Indiana, 30 x 60 SERIES STAGE SERIES STAGE accepted subsurface stratigraphy also is shown. This chart is not intended to be a comprehensive dissertation (unpub.), The Ohio State University, v. 1, 230 p. minute quadrangle: Ohio Division of Geological Survey Map 7, 1 sheet with text. accounting of current Ohio stratigraphic nomenclature. Thompson, T. L., Ford, N. S., and Sweet, W. C., 1971, Conodonts from the Rushville Formation McCormac, M. P., Mychkovsky, G. O., Opritza, S. T., Riley, R. A., Wolfe, M. E., Larsen, G. E., and (Mississippian) of Ohio: Journal of Paleontology, v. 45, no. 4, p. 704-712. Baranoski, M. T., 1996, Play Scm: Lower Silurian Cataract/Medina Group ("Clinton") sandstone play, in N The chart depicts lithostratigraphic nomenclature of the bedrock only; Quaternary units are not N A I A

I Tomastik, T. E., 1996, Play MDe: Lower Mississippian-Upper Devonian Berea and equivalent Roen, J. B., and Walker, B. J., eds., The atlas of major Appalachian gas plays: West Virginia D represented. The lithostratigraphic correlations shown are set in a geologic-time (chronostratigraphic) K R S sandstones, in Roen, J. B., and Walker, B. J., eds., The atlas of major Appalachian gas plays: West Geological and Economic Survey Publication V-25, p. 156-163. A

N framework consisting of both North American and global subdivisions. The chart is divided into 14 I N P

T GREENE FM McDowell, R. C., 1983, Stratigraphy of the Silurian outcrop belt on the east side of the Cincinnati Arch in U O Virginia Geological and Economic Survey Publication V-25, p.56-62.

R columns approximately representing 14 different geologic regions of the state (see index map). E O A L N R Uttley, J. S., 1974, The stratigraphy of the Maxville Group of Ohio and correlative strata in adjacent Kentucky, with revisions in the nomenclature: U.S. Geological Survey Professional Paper 1151-F, 27 p.

A Lithostratigraphic intervals shown in white represent most of the rock units identified on the open-file I G LOWER

M Patchen, D. G., Avary, K. L., and Erwin, R. B., coordinators, 1985, Northern Appalachian region, D maps. It should be noted that mapping was performed in a reconnaissance fashion, and, therefore, many areas: Ph.D. dissertation (unpub.), The Ohio State University, 252 p. R R E N A White, G. W., and Lamborn, R. E., 1949, Geology of Holmes County: Ohio Division of Geological Correlation of Stratigraphic Units of North America (COSUNA) Project: American Association of P

A lithostratigraphic units were combined into a single map unit. In these cases, the standard K I N SAKMARIAN P Survey Bulletin 47, 373 p. Petroleum Geologists, 1 sheet.

U lithostratigraphic subdivisions are shown along with the combined intervals. The shaded M D A Patchen, D. G., Avary, K. L., and Erwin, R. B., coordinators, 1985, Southern Appalachian region,

C WASHINGTON FM lithostratigraphic intervals represent rock units that are restricted to the subsurface and are included to F Correlation of Stratigraphic Units of North America (COSUNA) Project: American Association of L provide a more complete frame of reference to the lithostratigraphic nomenclature used in Ohio. ASSELIAN O Petroleum Geologists, 1 sheet. W The terms "undivided" and "undifferentiated" are used in the chart. "Undivided" indicates that DEVONIAN Rexroad, C. B., 1967, Stratigraphy and conodont paleontology of the Brassfield (Silurian) in the ? formal subdivisions exist, but were not applied at the time the reconnaissance bedrock-geology mapping was completed; "undifferentiated" indicates that no subdivisions are known or made at Cincinnati Arch region: Indiana Geological Survey Bulletin 36, 64 p. VIRGILIAN N MONONGAHELA GP this time. Stratigraphic names in quotation marks (for example, "UTICA SHALE") indicate informal Berg, T. M., McInerney, M. K., Way, J. H., and MacLachlan, D. B., 1983, Stratigraphic correlation chart Rexroad, C. B., Branson, E. R., Smith, M. O., Summerson, Charles, and Boucot, A. J., 1965, The A I MONONGAHELA GP MONONGAHELA GP Silurian formations of east-central Kentucky and adjacent Ohio: Kentucky Geological Survey Bulletin 2, N usage or drillers' names. of Pennsylvania: Pennsylvania Topographic and Geologic Survey General Geology Report 75, 1 sheet. A

UPPER H Broadhead, R. F., 1993, Petrography and reservoir geology of Upper Devonian shales, northern Ohio, in Series 10, 34 p. P

E Roen, J. B., and Kepferle, R. C., Petroleum geology of the Devonian and Mississippian black shale of Schumacher, G. A., 1993, Regional bedrock geology of the Ohio portion of the Piqua, Ohio-Indiana 30 x T

S MISSOURIAN CONEMAUGH GP CONEMAUGH GP CONEMAUGH GP eastern North America: U.S. Geological Survey Bulletin 1909, p. H1-H15. 60 minute quadrangle: Ohio Division of Geological Survey Map 6, 1 sheet with text. N

A Broadhead, R. F., Kepferle, R. C., and Potter, P. E., 1982, Stratigraphic and sedimentologic controls of Shaver, R. H., 1991, A history of study of Silurian reefs in the Michigan Basin environs: Geological I ACKNOWLEDGMENTS N

A gas in shale-example from Upper Devonian of northern Ohio: American Association of Petroleum Society of America Special Paper 256, p. 101-138. V

L Geologists Bulletin, v. 66, no. 1, p. 10-27. Shaver, R. H., coordinator, 1985, Midwestern Basin and Arches region, Correlation of Stratigraphic Units D Y DESMOINES- D E S

E The following individuals provided insight and expertise while this chart was being compiled and D

N ALLEGHENY GP IAN I

N ALLEGHENY GP of North America (COSUNA) Project: American Association of Petroleum Geologists, 1 sheet. D ALLEGHENY GP Camp, M. J., and Hatfield, C. B., 1991, Middle Devonian (Givetian) Silica Formation of northwest Ohio- I D V A I N I V N D I

D reviewed earlier drafts of the manuscript: Gregory A. Schumacher, Douglas L. Shrake, Ernie R. Slucher, L M A E N D description and road log: Ohio Journal of Science, v. 91, no. 1, p. 27-34. Shrake, D. L., 1997, Regional bedrock geology of the Marion, Ohio, 30 x 60 minute quadrangle: Ohio MIDDLE N A F A P Y N

E. Mac Swinford, Mark T. Baranoski, Ronald A. Riley, Lawrence H. Wickstrom, and Dennis N. Hull of the H N U Y ? T ? ? S

E Carman, J. E., 1960, The stratigraphy of the Devonian Holland Quarry Shale of Ohio: Chicago Natural Division of Geological Survey Map 9, 1 sheet with text. N P S T P I H E T P G Ohio Division of Geological Survey, and Steven T. Opritza and Thomas E. Tomastik of the Ohio

G H H G S

ATOKAN Sparling, D. R., 1970, The Bass Islands Formation in its type region: Ohio Journal of Science, v. 70, no.

E History Museum, Fieldiana-Geology, v. 14, no. 1, p. 1-5. E G T E L E L POTTSVILLE GP E L A L L Division of Oil and Gas. Richard W. Carlton, Korrie M. Justice, and Douglas J. Wenning of the Ohio L I L

W POTTSVILLE GP A L I E Carman, J. E., and Schillhahn, E. O., 1930, The Hillsboro Sandstone of Ohio: Journal of Geology, v. 38, 1, p. 1-33. POTTSVILLE GP V A V S R S ALLEGHENY AND POTTSVILLE T Division of Geological Survey digitized the chart. B T T no. 3, p. 246-261. Swinford, E. M., 1985, Geology of the Peebles quadrangle, Adams County, Ohio: Ohio Journal of T O O GROUPS UNDIVIDED P LOWER MORROWAN P Chapel, J. D., 1975, Petrology and depositional history of Devonian carbonates in Ohio: Ph.D. Science, v. 85, no. 5, p. 218-230. dissertation (unpub.), The Ohio State University, 279 p. Swinford, E. M., and Slucher, E. R., 1995, Regional bedrock geology of the Bellefontaine, Ohio, 30 x 60 NAMURIAN Conkin, J. E., and Conkin, B. M., 1975, Middle Devonian bone beds and the Columbus-Delaware minute quadrangle: Ohio Division of Geological Survey Map 8, 1 sheet with text. CHESTERIAN MAXVILLE LS MAXVILLE LS MAXVILLE LS REFERENCES CONSULTED (Onondagan-Hamiltonian) contact in central Ohio: Bulletins of American Paleontology, v. 67, no. 287, p. Ulteig, J. R., 1964, Upper Niagaran and Cayugan stratigraphy of northeastern Ohio and adjacent areas: 99-122. Ohio Division of Geological Survey Report of Investigations 51, 48 p.

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G CUYAHOGA FM G CUYAHOGA FM CUYAHOGA FM CUYAHOGA FM Division of Geological Survey Report of Investigations 42, 67 p. H M O O zone succession: Journal of Paleontology, v. 64, no. 6, p. 992-997. R L L Correlation of Stratigraphic Units of North America (COSUNA) Project: American Association of E T O U R N A I S Ehlers, G. M., Stumm, E. C., and Kesling, R. V., 1951, Devonian rock of southeastern Michigan and

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F BEREA SS BEREA SS , BEREA SS U V D BEREA SS BEREA SS V O U R B I SS ? Survey Bulletin 22, 167 p. I S D N B Ohio: Guidebook for Annual Geologic Excursion of the Michigan Geological Survey, 40 p. A F B E S D N U D N E

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S Fagerstrom, J. A., 1967, Stratigraphic and paleogeographic significance of the Holland Quarry Shale

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E "SECOND B BEDFORD SH Calvert, W. C., 1962, Sub-Trenton rocks from Lee County, Virginia, to Fayette County, Ohio: Ohio S BEDFORD SH BEDFORD SH BEDFORD SH BEDFORD SH BEDFORD SH "SECOND

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B BEREA SS" Division of Geological Survey Bulletin 57, 600 p. B SH CUSSEWAGO SS SH BEREA SS" (Lower Devonian), northwestern Ohio: Geological Society of America Bulletin, v. 78, no. 9, p. 1185-1190 Division of Geological Survey Report of Investigations 45, 57 p. CLEVELAND Fagerstrom, J. A., 1971, Brachiopods of the Detroit River Group (Devonian) from southwestern Ontario CLEVELAND CLEVELAND SH MBR CLEVELAND SH MBR CLEVELAND SH MBR CLEVELAND Janssens, A., 1973, Stratigraphy of the Cambrian and Lower Ordovician rocks in Ohio: Ohio Division of CLEVELAND SH MBR SH MBR N CONEWANGOAN SH MBR SH MBR and adjacent areas of Michigan and Ohio: Geological Survey of Canada Bulletin 204, 92 p. Geological Survey Bulletin 64, 197 p. A H N

U Hoover, K. V., 1960, Devonian-Mississippian shale sequence in Ohio: Ohio Division of Geological S A

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Y CHAGRIN H N H H U H H BED H BED CHAGRIN SH MBR H Survey Information Circular 27, 154 p. H G S S PENNSYLVANIAN

N CHAGRIN SH MBR S A S D S

CHAGRIN SH MBR SH MBR America: Geological Society of America Special Paper 313, 84 p. S

S SH MBR N

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E O O O O O I I O A House, M. R., Gordon, Mackenzie, Jr., and Hlavin, W. J., 1986, Late Devonian ammonoids from Ohio I O U I M I D I O I I I

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HURON SH O O O E O

D minute quadrangle: Ohio Division of Geological Survey Map 7, 1 sheet with text. C Berg, T. M., McInerney, M. K., Way, J. H., and MacLachlan, D. B., 1983, Stratigraphic correlation chart CASSADAGAN L ANTRIM SH HURON UPPER N Janssens, A., 1970, Middle Devonian formations in the subsurface of Northwestern Ohio: Ohio Division

O MBR D U - SH MBR of Pennsylvania: Pennsylvania Topographic and Geologic Survey General Geology Report 75, 1 sheet. Leslie, S. A., and Bergström, S. M., 1995, Revision of the North American late Middle Ordovician E

O OHIO SH I

D of Geological Survey Report of Investigations 78, 22 p. HURON SH MBR HURON SH MBR I standard stage classification and timing of the Trenton transgression based on K-bentonite bed H HURON SH MBR HURON SH MBR Berryhill, H. L., Jr., 1963, Geology and coal resources of Belmont County, Ohio: U.S. Geological Survey HURON SH MBR V HURON SH MBR HURON SH MBR I O Janssens, A., 1970, Guidebook to the Middle Devonian rocks of north-central Ohio: Ohio Geological

OLENTANGY D Professional Paper 380, 113 p. correlation, i n Cooper, J. D., Droser, M. L., and Finney, S. C., eds., Ordovician odyssey: Fullerton, SH "UPPER OLENTANGY "UPPER N Society, 30 p.

U "UPPER N N JAVA FM JAVA FM Brezinski, D. K., Sturgeon, M. T., and Hoare, R. D., 1989, Pennsylvanian trilobites of Ohio: Ohio Division California, Short papers for the Seventh International Symposium on the Ordovician System, Las SH" JAVA FM JAVA FM JAVA FM JAVA FM A A I OLENTANGY H OLENTANGY Janssens, A., 1997, Stratigraphy of post-Salina "Big Lime" (Silurian-Devonian) in northeast Ohio with

C CHEMUNGIAN N S of Geological Survey Report of Investigations 142, 18 p. Vegas, Nevada, June 1995: Pacific Section SEPM, p. 49-54.

E H S SH" SH"

WEST FALLS FM O N WEST FALLS FM emphasis on distribution of sandstone: a progress report: Proceedings of Ohio Geological Society Fifth

S WEST FALLS FM WEST FALLS FM WEST FALLS FM A I

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FINGERLAKESIAN Y SONYEA FM SONYEA FM States-Ohio: U.S. Geological Survey Professional Paper 1110-E, 25 p. Cincinnati region, U.S.A., for the definition and correlation of the base of the Cincinnati Series (Upper - Y N

G Johnson, J. G., and Klapper, Gilbert, 1992, North American midcontinent Devonian T-R cycles, in A G Y N

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A Chaplin, J. R., and Barrick, J. E., eds., Special papers in paleontology and stratigraphy: a tribute to N " T E T P Ohio Division of Geological Survey Bulletin 66, 134 p. Survey of Canada Paper 90-9, p. 59-77. H A E N TEN MILE L G N N S "LOWER T D

E Thomas W. Amsden: Oklahoma Geological Survey Bulletin 145, p. 127-135. O E A E E N

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I Condit, D. D., 1912, Conemaugh Formation in Ohio: Ohio Division of Geological Survey Bulletin 17, 363 p. R R L D S

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I "LOWER T E O E P CREEK DOL Larsen, G. E., 1991, Development of Silurian and Devonian lithostratigraphic nomenclature, central- R O L V N E V I W Douglas, R. C., 1987, Fusulinid biostratigraphy and correlations between the Appalachian and Eastern

G Appalachian Basin: Kentucky Geological Survey Information Circular 55, 21 p. E

A SH" O

V "HAMILTON A D O

V OLENTANGY I T "HAMILTON GP" western and northwestern Ohio: Ohio Division of Geological Survey Open-File Report 91-1, 1 sheet. L N A R "HAMILTON " N G Interior Basins: U.S. Geological Survey Professional Paper 1451, 95 p. Patchen, D. G., Avary, K. L., and Erwin, R. B., coordinators, 1985, Northern Appalachian region, U R T E SH" GP" "HAMILTON GP" T "HAMILTON GP" PLUM BROOK SH L Lewis, T. L., 1988, Late Devonian and early Mississippian distal basin-margin sedimentation of northern N SILICA SH "HAMILTON GP"

O GP" Flint, N. K., 1951, Geology of Perry County: Ohio Division of Geological Survey Bulletin 48, 234 p. Correlation of Stratigraphic Units of North America (COSUNA) Project: American Association of A I Ohio: Ohio Journal of Science, v. 88, no. 1, p. 23-39. N CAZENOVIAN Hoare, R. D., and Sturgeon, M. T., 1994, Small fusulinids from the Pennsylvanian of Ohio: Journal of Petroleum Geologists, 1 sheet. N O A V ? Lewis, T. L., and Schwietering, J. F., 1971, Distribution of the Cleveland black shale in Ohio: Geological I Paleontology, v. 68, no. 5, supp. (Paleontology Society Memoir 38), 21 p. Patchen, D. G., Avary, K. L., and Erwin, R. B., coordinators, 1985, Southern Appalachian region, E MIDDLE R D

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UNDIFFERENTIATED B S

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Ohio: Ohio Journal of Science, v. 91, no.1, p. 69-76.

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T BELLEPOINT D I G I Patchen, D. G., Avary, K. L., and Erwin, R. B., coordinators, 1985, Southern Appalachian region, AMHERSTBURG U L C N O O "DETROIT MBR L Merrill, G. K., 1973, Pennsylvanian conodont paleoecology, in Rhodes, F.H.T., ed., Conodont Basin from Richland County, Ohio, to Rockingham County, Virginia: U.S. Geological Survey O

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P RIVER Miscellaneous Investigations Series, Map I-2264, 1 sheet. E E paleozoology: Geological Society of America Special Paper 141, p. 239-274. G D D Petroleum Geologists, 1 sheet. N HILLSBORO SS SYLVANIA SS FACIES" Schumacher, G. A., 1993, Regional bedrock geology of the Ohio portion of the Piqua, Ohio-Indiana 30 x

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" A

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R WAYNESVILLE D I W Report of Investigations 61, 1 sheet with text. E WAYNESVILLE FM WAYNESVILLE FM WAYNESVILLE FM T Science, v. 69, no. 6, p. 321-342. Ryder, R. T., 1991, Stratigraphic framework of Cambrian and Ordovician rocks in the central FM N T

N "CINCINNATIAN ARNHEIM FMS N "CINCINNATIAN "CINCINNATIAN A "CINCINNATIAN "CINCINNATIAN "CINCINNATIAN I "CINCINNATIAN A A E "CINCINNATIAN Pashin, J. C., and Ettensohn, F. R., 1995, Reevaluation of the Bedford-Berea sequence in Ohio and I I "CINCINNATIAN Janssens, A., 1968, Stratigraphy of Silurian and pre-Olentangy Devonian rocks of the South Birmingham Appalachian Basin from Richland County, Ohio, to Rockingham County, Virginia: U.S. Geological ASHGILLIAN C I R T T UNDIVIDED V E N A ARNHEIM FM ARNHEIM FM ARNHEIM FM ARNHEIM FM "ORDOVICIAN SERIES SERIES SERIES adjacent states: forced regression in a foreland basin: Geological Society of America Special Paper 298, 68 p. pool area, Erie and Lorain Counties, Ohio: Ohio Division of Geological Survey Report of Investigations Survey Miscellaneous Investigations Series, Map I-2264, 1 sheet. F SERIES

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K UNDIFFERENTIATED" Correlation of Stratigraphic Units of North America (COSUNA) Project: American Association of I Janssens, A., 1977, Silurian rocks in the subsurface of northwestern Ohio: Ohio Division of Geological Appalachian Basin from Lake County, Ohio, to Juniata County, Pennsylvania: U.S. Geological Survey U UNDIFFERENTIATED"

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CORRYVILLE MBR CORRYVILLE MBR L FM A FM / N D Patchen, D. G., Avary, K. L., and Erwin, R. B., coordinators, 1985, Southern Appalachian region, Janssens, A., 1997, Stratigraphy of post-Salina "Big Lime" (Silurian-Devonian) in northeast Ohio with Shaver, R. H., coordinator, 1985, Midwestern Basin and Arches, Correlation of Stratigraphic Units of I R A D V G R I BELLEVUE MBR E Correlation of Stratigraphic Units of North America (COSUNA) Project: American Association of emphasis on distribution of sandstone: a progress report: Proceedings of Ohio Geological Society Fifth North America (COSUNA) Project: American Association of Petroleum Geologists, 1 sheet. D G D

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MIAMITOWN U MIAMITOWN FAIRVIEW MIAMITOWN Sandstone in the Appalachian Basin: U.S. Geological Survey Professional Paper 259, 111 p.

FAIRVIEW FM N UNDIVIDED UNDIVIDED ? western Ohio, i n James, N. P., and Choquette, P. W., eds., Paleokarst: New York, Springer-Verlag, Inc., including description of the Middle Run Formation (Precambrian?) and a seismic profile across the core UNDIVIDED FM A ? ? ? FM I Potter, P. E., DeReamer, J. H., Jackson, D. S., and Maynard, J. B., 1983, Lithologic and environmental

C p. 229-255. site: Ohio Division of Geological Survey Information Circular 56, 11 p. I KOPE FM KOPE FM V KOPE FM atlas of Berea Sandstone (Mississippian) in the Appalachian Basin: Appalachian Geological Society Kahle, C. F., 1997, Geology of some Silurian rocks in Ohio: the view from stone quarries: Proceedings of Wickstrom, L. H., Botoman, George, and Stith, D. A., 1985, Report on a continuously cored hole drilled O

EDENIAN KOPE FM D "UTICA SH" "UTICA SH" "UTICA SH" "UTICA SH" N ? Special Publication 1, 157 p. R Ohio Geological Society Fifth Annual Technical Symposium, p. 48-51. into the Precambrian in Seneca County, northwestern Ohio: Ohio Division of Geological Survey A I O

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E SH" N R F A O H SH" PLEASANT PLEASANT POINT PLEASANT FM POINT PLEASANT FM POINT PLEASANT FM POINT PLEASANT FM POINT PLEASANT FM A O E P S FM L M

FM P FM "UTICA SH" PRECAMBRIAN N A I N - D A I K L D R E I I L Drahovzal, J. A., Harris, D. C., Wickstrom, L. H., Walker, Dan, Baranoski, M. T., Keith, Brian, and Furer, F K E I T TRENTON LS TRENTON LS TRENTON LS F

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A Patchen, D. G., Avary, K. L., and Erwin, R. B., coordinators, 1985, Northern Appalachian region, MIDDLE M LUCAS LAKE L WILLIAMS FULTON

P Correlation of Stratigraphic Units of North America (COSUNA) Project: American Association of M CONTACT TYPE CONTACT TYPE CONTACT TYPE CONTACT TYPE CONTACT TYPE OTTAWA N A GEAUGA Petroleum Geologists, 1 sheet. A

H WOOD N

R UNCERTAIN C A ESTABLISHED ESTABLISHED UNCERTAIN

I TRUMBULL E BLACK RIVER GP BLACK RIVER GP BLACK RIVER GP HENRY CUYAHOGA Patchen, D. G., Avary, K. L., and Erwin, R. B., coordinators, 1985, Southern Appalachian region,

N BLACK RIVER GP BLACK RIVER GP BLACK RIVER GP BLACK RIVER GP BLACK RIVER GP BLACK RIVER GP BLACK RIVER GP BLACK RIVER GP 6

V BLACK RIVER GP BLACK RIVER GP BLACK RIVER GP SANDUSKY

I ERIE I DEFIANCE LORAIN R R 9 Correlation of Stratigraphic Units of North America (COSUNA) Project: American Association of U K PORTAGE T C Petroleum Geologists, 1 sheet.

A SUMMIT PAULDING HURON MEDINA L 7 SENECA Shaver, R. H., coordinator, 1985, Midwestern Basin and Arches, Correlation of Stratigraphic Units of B WELLS CREEK FM WELLS CREEK FM WELLS CREEK FM WELLS CREEK FM WELLS CREEK FM WELLS CREEK FM WELLS CREEK FM WELLS CREEK FM WELLS CREEK FM WELLS CREEK FM WELLS CREEK FM WELLS CREEK FM WELLS CREEK FM WELLS CREEK FM Conformable ? ? 8 PUTNAM HANCOCK MAHONING North America (COSUNA) Project: American Association of Petroleum Geologists, 1 sheet.

N Shrake, D. L., 1991, The Middle Run Formation: a subsurface stratigraphic unit in southwestern Ohio: LLANDEILIAN - ASHLAND A VAN WERT I E WYANDOT CRAWFORD WAYNE

T Ohio Journal of Science, v. 91, no. 1, p. 49-55. K I C

LLANVIRNIAN H STARK COLUMBIANA O Unconformable ? ? ALLEN Shrake, D. L., Wolfe, P. J., Richard, B. H., Swinford, E. M., Wickstrom, L. H., Potter, P. E., and Sitler, G. W R HARDIN RICHLAND W., 1990, Lithologic and geophysical description of a continuously cored hole in Warren County, Ohio, MERCER CARROLL MARION including description of the Middle Run Formation (Precambrian?) and a seismic profile across the core ARENIGIAN AUGLAIZE MORROW HOLMES N N A I A TUSCARAWAS site: Ohio Division of Geological Survey Information Circular 56, 11 p. I Time Transgressive D X LOGAN LOWER A ? ? KNOX JEFFERSON E "BEEKMAN- UNION N "BEEKMANTOWN "BEEKMANTOWN "BEEKMAN- Conformable SHELBY B ? I L A "BEEKMANTOWN DOL" 10 L TOWN DOL" TOWN DOL" "BEEKMANTOWN DOL" "BEEKMANTOWN DOL" COSHOCTON

L HARRISON L C

O DOL" L L L

TREMADOCAN L O

DOL" O

"ROSE RUN O D DELAWARE

O O O DARKE O D

L D

"BEEKMANTOWN DOL" "BEEKMANTOWN DOL" D 5 12 "ROSE RUN FM" D D D

"ROSE RUN FM" D X SS" "ROSE RUN FM" O "ROSE RUN FM"

X "ROSE RUN FM" 4 X X

L L ? L ? L O ? ? L D X X X X O

CHAMPAIGN O O ? O O O O N

O LICKING O O O Time Transgressive O N X

N MIAMI N D D K D D GUERNSEY D

TREMPEALEAUAN N N N K

"COPPER RIDGE N "COPPER RIDGE ?

O "COPPER RIDGE ? K "COPPER RIDGE "COPPER RIDGE "COPPER RIDGE "COPPER RIDGE "COPPER RIDGE "COPPER RIDGE K "COPPER RIDGE "COPPER RIDGE "COPPER RIDGE "COPPER RIDGE "COPPER RIDGE BELMONT K K K X X K X X MUSKINGUM

X Unconformable N MADISON FRANKLIN O O O O K DOL" DOL" DOL" O

N N DOL" DOL" N N DOL" DOL" DOL" DOL" N DOL" DOL" DOL" DOL" DOL" CLARK K K K K FRANCONIAN K UPPER KERBEL FM KERBEL FM KERBEL FM KERBEL FM KERBEL FM KERBEL FM KERBEL FM KERBEL FM KERBEL FM KERBEL FM KERBEL FM PREBLE MONTGOMERY PERRY 3 NOBLE MONROE N EAU EAU EAU EAU EAU FAIRFIELD A CONASAUGA GREENE I CONASAUGA CONASAUGA FM CONASAUGA CONASAUGA CONASAUGA CONASAUGA FM Interval missing by Units not seen PICKAWAY R EAU CLAIRE FM CLAIRE FM CLAIRE FM CLAIRE CLAIRE CLAIRE CONASAUGAFM CONASAUGA FM CONASAUGA FM CONASAUGA FM CONASAUGA FM MORGAN B DRESBACHIAN FM FM EAU CLAIRE FM FM FAYETTE M FM FM FM FM nondeposition or erosion in outcrop 13

A FM ROME FM ROME FM ROME FM 11 C ROME FM ROME FM ROME FM ROME FM ROME FM ROME FM ROME FM ROME FM ROME FM WARREN HOCKING WASHINGTON BUTLER CLINTON MOUNT SIMON SS MOUNT SIMON SS MOUNT SIMON SS MOUNT SIMON SS ROSS MIDDLE ALBERTAN MOUNT SIMON SS MOUNT SIMON SS MOUNT SIMON SS MOUNT SIMON SS MOUNT SIMON SS MOUNT SIMON SS MOUNT SIMON SS MOUNT SIMON SS MOUNT SIMON SS MOUNT SIMON SS 1 ATHENS STRATIGRAPHIC ABBREVIATIONS VINTON HAMILTON HIGHLAND LOWER WAUCOBAN FM Formation CLERMONT PIKE MEIGS LS Limestone JACKSON MIDDLE MIDDLE RUN IGNEOUS AND IGNEOUS AND MIDDLE IGNEOUS AND IGNEOUS AND MIDDLE RUN MIDDLE IGNEOUS AND MBR Member SH Shale 2 RUN RUN RUN C N BROWN ADAMS I FM METAMORPHIC METAMORPHIC METAMORPHIC FM GP Group GALLIA A FM METAMORPHIC FM METAMORPHIC Dol Dolomite I O FM SCIOTO Z R ROCKS ROCKS IGNEOUS AND IGNEOUS AND IGNEOUS AND IGNEOUS AND IGNEOUS AND IGNEOUS AND IGNEOUS AND R ROCKS ROCKS ROCKS SS Sandstone

B 14 O E R M

P METAMORPHICROCKS METAMORPHIC ROCKS METAMORPHIC ROCKS METAMORPHIC ROCKS METAMORPHIC ROCKS METAMORPHIC ROCKS METAMORPHIC ROCKS

E ? A GRANITE- ? GRANITE- GRANITE- P GRANITE- ? GRANITE- ?

T ? C U O E GRANITE-RHYOLITE RHYOLITE RHYOLITE RHYOLITE RHYOLITE GRANITE-RHYOLITE RHYOLITE

R LAWRENCE R COMPLEX COMPLEX COMPLEX P COMPLEX COMPLEX COMPLEX COMPLEX P Vertical scale is relative to time. However, the thicknesses of units shown on the chart are not AREA 1 AREA 2 AREA 3 AREA 4 AREA 5 AREA 6 AREA 7 AREA 8 AREA 9 AREA 10 AREA 11 AREA 12 AREA 13 AREA 14 representative of the length of geologic time or an indicator of lithologic thickness.