KENTUCKY GEOLOGICAL SURVEY MAP AND CHART SERIES 21 Donald C. Haney, State Geologist and Director Series XI, 1998 UNIVERSITY OF KENTUCKY, Lexington

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Newport 275 sg COVINGTON s 471 39° 39° sg sg Burlington s Licking MINERAL AND FUEL RESOURCES MAP OF KENTUCKY sg Alexandria 75 BOONE s Warren H. Anderson and Garland R. Dever Jr. s KENTON c 71 CAMPBELL With contributions by Brandon C. Nuttall, Gerald A. Weisenfluh, Terry D. Hounshell, Kx, Pb O H I O William M. Andrews Jr., and John K. Hiett ls River sg Bullock Pen * Lake 1998 ls ls sg Warsaw 71 75 GALLATIN * Kincaid Lake sg sg sg Eagle Creek sg PENDLETON s OHIO Williamstown Scale: 1:500,000 Boltz Lake Brooksville s RIVER CARROLL Lake Falmouth 1 inch equals approximately 8 miles Carrollton sg Zn GRANT BRACKEN Maysville K Zn ss e * * Williamstown n * d 30 t s 10 0 10 20 40 Miles N u * ss c ls Vanceburg ss k Area of narrow outcrops y Greenup of construction limestone Fork ts Zn ss ss along the Licking River MASON Bedford North Fn Kx, Ba, Zn and its forks ss GREENUP 10 0 10 20 30 40 50 Kilometers sg * TRIMBLE Kx, Zn, Pb OWEN Mt. Olivet Owenton South ss Greenbo r * Lake ive LEWIS R ROBERTSON Kx, Zn Fn Fn Ashland * ls Kx, Zn Fn © 1998 by Kentucky Geological Survey, sg Kx, Zn, Ba, Pb Fe s Fn University of Kentucky HENRY ls Fork Catlettsburg Kx, Ba, Zn ls River HARRISON Flemingsburg Fn New Castle Kx, Ba, F oc7 sg La Grange 64 d Cynthiana FLEMING H(u) BOYD Big OLDHAM ls F, Ba, Fe 71 y Grayson NICHOLAS d ss n Ballardsville a * 23 Sandy dol ls S (abandoned) ls CARTER B uc3 ss dol SCOTT ls Carlisle Licking 75 Phosphate sis ss Fe B area Tar sand sis R sg i v 264 Fe e W E S T dol FRANKLIN Grayson r Lake Fe SHELBY BOURBON Ri LOUISVILLE 64 Guist Creek Kx, F ve 64 65 Georgetown r ROWAN Fe d Shelbyville Lake Frankfort ls d ls Paris A sg BATH Morehead VIRGINIA RIVER 64 JEFFERSON Owingsville ss le ELLIOTT ls Kx, Zn, tt Louisa Li N 265 Kx, Cu, F, Ba Fe ss F Fn ss A s Phosphate Zn, Ba Fe LAWRENCE mines Po Cave Run Sandy Hook ls c dol ls Lake sis I Po B D Fork d LEXINGTON Fe N NA WOODFORD Mt. Sterling d I ls c Kx, F 64 38° 38° SPENCER Versailles Lawrenceburg ls Fn Taylorsville ea ls ls dol FAYETTE MONTGOMERY S sg sg s d dol Taylorsville Fe B Fe SYSTEM F, Zn Lake Salt Mountain FAULT NA NA Fe sg OHIO Shepherdsville Winchester Fn 23 Brandenburg ls Pkwy. Kx, Zn, Ba ls Kx, Zn, Cu MORGAN s Doe Run BULLITT Frenchburg River ANDERSON Western Kentucky Fluorspar District CLARK Fe d Tug * Levisa I MEADE Muldraugh Salt ls West Liberty Paintsville * JESSAMINE Kx, Ba, RIVER Lake SYSTEM ls d MENIFEE sg d ls F, Zn Ba m Ba Licking Parkway Kx, Fe, F ls ls JOHNSON s Inez EXPLANATION sg sis Geode/Siderite nodule Rothwell Union Ba Zn, F, Ba (abandoned) Fe s River M, Gyp Ba, Zn, Sr Outline of area of known Hawesville ls Grass sd Nicholasville POWELL ss * Tar sand fluorspar deposits O Green B ss sis 0 4 KENTUCKY * Red Ba 8 mi sg * Fork Structural arch Henderson under NELSON Blue Ba, Pb, Zn 75 Stanton Paintsville 0 4 8 12 km HANCOCK sis U ss sg dg construction ls River d Mafic dike or sill dg * River Bon Harbor and dg Flaherty Kentucky ss River dol MERCER MARTIN Audubon Owensboro West (proposed) ESTILL SYSTEM Fault N Bardstown Kx, Pb, Cu River ky Pa Hardinsburg 65 Rolling c rkway ts Herrington tu ss sis Salyersville ls n ntain Parkway Lake s e g Mou d HENDERSON Pennyrile ls ls r K Fn Fn Dewey Ohio TOLU ts Harrodsburg e Owensboro v Richmond ARCH i Campton sis Lake T Zn R Kx, Ba MAGOFFIN I BRECKINRIDGE ss WASHINGTON L RiverFAULT SYSTEM * SYSTEM U Kx, Cu, F WOLFE SYSTEM Fork Kx, F, Ba, Pb Fe Prestonsburg HARDIN A ss Irvine ls FAULT Ba, Zn, Pb, Mn Natcher F Crittenden Morganfield DAVIESS Springfield s 114 FAULT Dixie Grandview F Elizabethtown* ss Kx, Fe MADISON L Hickory School s M, Gyp, F Cecilia ls CREEK S, Zn ss Rock Creek Graben 23 FAULT GARRARD Danville Zn, Pb 460 COMMODORE Levisa SPRINGS T Livingston ISR Ch, O, Zn, Cc, ls ls IN LEE FLOYD SYSTEM ts Zn, Pb Zn ls A No Pb, Mo, Co, Ni, Ag CREEK Rough River NA Lancaster P rth FAULT W. Ky. Parkway – SYSTEM L UNION Lake BOYLE HILL ss sis ROUGH Parkway ls River E Geode/Siderite nodule N Berea ISR Ch, Parkway MARION I Fe, Ba, Zn ls Beattyville sis Kx, Fe, Cu Dix V Co, Ba, Pb M, Gyp Kx, Zn, R Fe Fork FAULT CLAYLICK Lebanon I Zn, Pb M Jackson BREATHITT River Ba, F Kx, Cu, i Fork I ch ts Hodgenville sg dd ts Pb, F Zn, Pb l dg Calhoun e HILL WEBSTER ls d LEVIAS-CRITTENDEN s ts Flint Hill sg Stanford Dixon FAULT (abandoned) * ls Ba Ba Pikeville A ls S PIKE p McLEAN Zn, Pb NA Ba o MOORE p SYSTEM River u DYERS r t o Hanson h x Leitchfield Booneville Fork 80 Caldwell im Zn, Pb LARUE LEXINGTON Ba TABB NA a FAULT T t Kx, Pb, e r a g ls b Nolin Zn, Cu d LINCOLN SYSTEM o Rough OHIO e ts NA Ni u w ls s n Mckee OWSLEY Fishtrap Lake ls d a s Kx, Cu, a t Pond Hartford * Fe e d r r Magnolia NA Zn, F y ss ROCKCASTLE W GRAYSON Lake CRITTENDEN e Barnsley ts Nitrates JACKSON KNOTT s W. Ky. Parkway Pc d t * Linville ISR, M e r ls ls Cu, Pb, Zn n ss K Qt ss e sg TAYLOR Mt. Vernon ss Hindman 23 ss n d Ba t Natcher Marion u CASEY ls c Campbellsville sis (PLANT) k Buckhorn 119 y Nolin Lake Madisonville sis C East sg * ss Lake o Fn GREEN Liberty PERRY ss ss a HOPKINS Diamond sis ss l Midland Fe ls Fie sg Fork M ld Kirkwood ss ts Green River LIVINGSTON Springs Fn HART er Lake Hazard Carr Fork Lake Green iv River Graham Lake ts ts R White BUTLER Canmer Greensburg Kx, F Kx, Ba, F * Plains sg Munfordville (abandoned) ss River reen ls OHIO * EDMONSON G Wood Creek ss MUHLENBERG Morgantown ls Fe Greenville Parkway * ls Lake CLAY RIVER ts * Parkway Jenkins ls ss CALDWELL ts 65 Cumberland Luzurne Brownsville SYSTEM ts Hyden LETCHER c ls ss y St. Charles West wa River ss ss Fe ark Greenville ts Nitrates ls * Manchester Boone Whitesburg . Ky. P ts ls 80 Smithland Fe W FAULTFe Fe ss Fn ls LAUREL LYON Lake ADAIR PULASKI London Daniel PADUCAH Fe Beshear Center ls ISR, O Eddyvillle Princeton sis Columbia ss McCRACKEN River Zn, Pb dg Fn sis ls PENNYRILE Lake Malone ls FAULT BALLARD River ss ls Somerset LESLIE dg Fn d ° e Crofton East ls 37 37° Tennesse ls d ay an Parkw Fe erl RUSSELL sg ls ss Barren mb ls Laurel River 24 ls Cu Lake sis sis Fe Judges d ls ls ls sis Fn Chapel ls sis Wickliffe Pb Glasgow sis M, Cu, CuFeS2 Jamestown ss Mayfield East River Ti Lake Barkley CHRISTIAN ts Bowling m Creek ts Green Edmonton Lake Fn OVERTHRUST Fork sis ts Kx, Pb, Cumberland d ls Parkway ss M, Gyp Zn KNOX VIRGINIA Fe sg BARREN sd ca ls sis HARLAN s Bardwell Ti Fn ts WARREN METCALFE West Ti Fe Kx, Gyp Ba, F, s TODD Zn, Pb Clarks Barbourville CARLISLE Kentucky Cadiz c River Lake ls ld Benton Hopkinsville d ie Harlan an l F Fork Barren River Lake rl a Kettle Island MOUNTAIN M I S S O U R I ls e o MARSHALL TRIGG b Monticello C d m y 75 Russellville ls u k ISR M, F, Gyp 24 ls C ls c ls F tu Parkway Gas-producing area ls Kx, Gyp, Anhydrite n Elkton CUMBERLAND e WHITLEY River ls boundary K GRAVES ss n WAYNE ls r e c Ti ls Burkesville t d Pineville Creek Pennyrile s lan a Cumber ch 65 Zn ss Mayfield Zn E McCREARY M, Gyp y Williamsburg River Scottsville M r c a sis d ls n u LOGAN o Whitley City Obion Ti CLINTON HICKMAN Franklin S b Canada Mountain BELL For information on obtaining copies of this map ALLEN Zn te and other Kentucky Geological Survey maps Clinton River Ba a (proposed) Tompkinsville ls m c M, Gyp ls i and publications call: c s SIMPSON Ba, Sr x F Albany o PINE r Red Ba, Pb, Zn Zn p Publications Sales office MONROE p CALLOWAY A (606) 257-3896 s * View the KGS World Wide Web site at RIVER * www.uky.edu/KGS Zn c ss Murray sis Hickman c ISR M, Zn Dale Hollow MISSISSIPPI c c FULTON c Purchase sis Lake sis c Ti TENNE S SEE

Cartography by Terry Hounshell 89° 88° 87° 86° 85° 84° 83° 82°

EXPLANATION LIMESTONE, SAND and GRAVEL, and CLAY PRODUCTION LIMESTONE CLAY and SHALE COAL Minerals and Fuels of Kentucky Selected References COAL PRODUCTION 180 60 The production of minerals and fuels in Kentucky is a and Silurian rocks. In eastern Kentucky, oil and natural gas are Amaral, E.J., 1994, Sand and gravel resources along the Ohio River Valley in Boone, Gallatin, and Dever, G.R., Jr., and McGrain, Preston, 1969, High-calcium and low-magnesium limestone Construction limestone New Providence Shale Major coal-producing area multibillion dollar industry. Historically, coal, oil, natural gas, produced from Silurian, Devonian, Mississippian, and Carroll Counties, with contributions by W.H. Anderson: Kentucky Geological Survey, ser. 11, Report resources in the region of the lower Cumberland, Tennessee, and Ohio Valleys, western of Investigations 8, 59 p. Kentucky: Kentucky Geological Survey, ser. 10, Bulletin 5, 192 p. 160 limestone, sand and gravel, clay, fluorite, barite, lead, iron, Pennsylvanian rocks. 50 * Narrow outcrop of construction lime- Area of Porters Creek Clay phosphate, zinc, and brines have been produced in the State. Anderson, W.H., 1991, Mineralization and hydrocarbon emplacement in the Cambrian–Ordovician Dever, G.R., Jr., Robl, T.L., Moody, J.R., Walker, F.H., Ellsworth, G.W., Jr., and Barron, L.S., 140 stone; noted on the map by asterisk and Coal field boundary In the past, a variety of ore minerals, including fluorite, leader ( * ): occurrences in Allen, Edmonson, These resources have greatly influenced the development of sphalerite, galena, and barite, were mined in Kentucky. At the Mascot Dolomite of the Knox Group in south-central Kentucky, with contributions by Peter Price: 1993, Low-silica and high-calcium stone in the Newman Limestone (Mississippian) on Pine Total Coal Hart, Livingston, Carroll, Owen, Henry, Pendle- Mountain, Letcher County, southeastern Kentucky: Kentucky Geological Survey, ser. 11, ton, Harrison, and Madison Counties Mapped Porters Creek Clay Kentucky by providing raw materials for the early settlers who time of its peak production during World War II and in the Kentucky Geological Survey, ser. 11, Report of Investigations 4, 31 p. 120 40 settled the State and for current industrial and economic Information Circular 41, 73 p. Eastern Industrial and construction limestone mid-1960’s, the Western Kentucky Fluorspar District was one Anderson, W.H., 1994, Rocks and minerals of Kentucky: Kentucky Geological Survey, ser. 11, Special Kentucky Area of ceramic clay MINERAL DEPOSITS development. Electrical power for homes, businesses, and Foerste, A.E., 1913, The phosphate deposits in the upper Trenton limestones of central Kentucky: 100 Limestone of the world’s largest producers of these minerals. Monroe, Publication 20, 82 p. Coal Field 30 Narrow outcrop of industrial and con- factories; materials for constructing houses, buildings, Kentucky Geological Survey, ser. 4, v. 1, p. 391–439. Iron Cumberland, and Clinton Counties of the South-Central Anderson, W.H., and Barron, L.S., 1995, High-carbonate, low-silica, high-calcium stone in the High struction limestone;occurs along the bluffs of Mapped ceramic clay automobiles, and roads; and products we consume in everyday 80 the Kentucky River in the central Kentucky counties of Kentucky Mineral District are known to have mineral deposits Bridge Group (Upper Ordovician), Mason County, north-central Kentucky: Kentucky Geological Greb, S.F, Williams, D.A., and Williamson, A.D., 1992, Geology and stratigraphy of the Western Mercer, Jessamine, Garrard, Woodford, Fayette, Clark, Million Tons Abandoned iron mine life come from the earth’s mineral and fuel resources. Million Tons 20 and Madison, along Pine Mountain Overthrust Fault, Fe that contain zinc. The Central Kentucky Mineral District has Survey, ser. 11, Information Circular 53, 33 p. Kentucky Coal Field: Kentucky Geological Survey, ser. 11, Bulletin 2, 77 p. 60 and near Kentucky Lake, Lake Barkley and the Cum- Olive Hill clay bed berland River in western Kentucky The ability to locate and efficiently use raw materials is produced barite, sphalerite, fluorite, calcite, and galena. Although Sand and Po Abandoned phosphate mine Anderson, W.H., Trace, R.D., and McGrain, Preston, 1982, Barite deposits of Kentucky: Kentucky MacFarlan, A.C., 1943, The geology of Kentucky: Lexington, University of Kentucky, 433 p. important in virtually all economic activity in the State. The there is no mining activity in any of the districts at the present 40 Gravel Dolomite Geological Survey, ser. 11, Bulletin 1, 56 p. 10 Hitchins clay bed Abandoned vein mineral mine purpose of this 1:500,000-scale map is to show the general time, mining companies continue to explore these areas for McGrain, Preston, 1956, Recent investigation of silica sands of Kentucky No. 2: Kentucky Western Kentucky locations of the principal mineral and fuel resources in Kentucky. economic deposits. Iron ores and phosphate minerals were Brant, R.A., 1983a, Coal resources of the Princess District, Kentucky: University of Kentucky Institute Geological Survey, ser. 9, Report of Investigations 11, 32 p. 20 Coal Field ls Limestone quarry or underground mine Fn Abandoned iron furnace for Mining and Minerals Research, Energy Resource Series, 61 p. Clay Active clay pit The “Geologic Map of Kentucky” (Noger, 1988) is at the same mined in Kentucky before higher grade deposits were discovered McGrain, Preston, and Kendall, T.A., 1972, Miscellaneous analyses of Kentucky clays and shales 0 dol Dolomite quarry or underground mine Fluorite (shown on Western Kentucky Fluorspar scale as this map and has additional geologic information about elsewhere in the United States. 0 District inset map only: no deposits shown on Brant, R.A., 1983b, Coal resources of the Southwestern District, Kentucky: University of Kentucky for 1960–1970: Kentucky Geological Survey, ser. 10, Report of Investigations 12, 62 p. 1955 1960 1965 1970 1975 1980 1985 1990 1995 Abandoned clay pit main map) these resources. For detailed information about geology and A variety of minerals classified as clay materials are mined Institute for Mining and Minerals Research, Energy Resource Series, 89 p. 1900 1920 1940 1960 1980 2000 Miller, A.M., 1919, The geology of Kentucky: Kentucky Geological Survey, ser. 5, Bulletin 2, Year Source: U.S. Bureau of Mines SAND and GRAVEL Mineral occurrence in core mineral resources, consult the 7.5-minute geologic quadrangle in Kentucky, including common clay, ceramic and ball clays, Year Source: Kentucky Geological Survey and U.S. Geological Survey Clay deposit (common clay) ISR M ISR–Insoluble residue in well sample Brant, R.A., Chesnut, D.R., Frankie, W.T., and Portig, E.R., 1983a, Coal resources of the Big Sandy 392 p. c–clay noted in core maps for Kentucky. Q–Quaternary refractory clay, and shale. These materials are used in the District, Kentucky: University of Kentucky Institute for Mining and Minerals Research, Energy Rockcastle Sandstone s–structural clay M–Mississippian Noger, M.C., comp., 1988, Geologic map of Kentucky: U.S. Geological Survey, scale 1:500,000. M–Mississippian underclay S–Silurian Coal occurs in two regions of Kentucky: the Eastern manufacture of brick, china, and pottery, and have been used Resource Series, 47 p. ea–expanded aggregate O–Ordovician Kentucky Coal Field (a part of the Appalachian Basin) and the as industrial absorbents and lightweight aggregate. Nuttall, B.C., comp., 1989, Index to oil and gas fields of Kentucky: Kentucky Geological Survey, Quaternary sand and gravel NA–New Albany Shale pit C–Cambrian Brant, R.A., Chesnut, D.R., Frankie, W.T., and Portig, E.R., 1983b, Coal resources of the Hazard District, uc3–underclay, under Princess No. 3 coal Kx–Knox Group Western Kentucky Coal Field (a part of the Illinois Basin). Sand and gravel are mined in Kentucky and are used ser. 11, Information Circular 27, 267 p. VALUE oc7–overclay, over Princess No. 7 coal Kentucky: University of Kentucky Institute for Mining and Minerals Research, Energy Resource OIL and NATURAL GAS PRODUCTION Sand and gravel H(u)–Hitchins underground mine Mineral occurrence (Ba, Cc, F, Pb, or Zn Kentucky has been among the top three coal-producing states extensively as construction materials and aggregate for roads Series, 49 p. 300 4.50 Olive, W.W., and Finch, W.I., 1969, Stratigraphic and mineralogic relations and ceramic properties 30 unless noted otherwise) for more than 50 years. Kentucky’s remaining coal resources, and buildings. Common and silica sands have been mined for of clay deposits of Eocene age in the Jackson Purchase Region, Kentucky, and in adjacent 90 Residual clay Ag–Silver Brant, R.A., Chesnut, D.R., Frankie, W.T., and Portig, E.R., 1983c, Coal resources of the Licking River Coal Sand and gravel, glacial outwash Ba–Barite estimated at 90 billion short tons, are also among the largest concrete and glassmaking, respectively. Sands bearing titanium parts of Tennessee: U.S. Geological Survey Bulletin 1282, 35 p. Cc–Calcite District, Kentucky: University of Kentucky Institute for Mining and Minerals Research, Energy B Brick plant deposits in the United States. minerals are found in the Jackson Purchase Region of western 250 3.75 Ch–Chalcopyrite Resource Series, 57 p. Patterson, S.H., and Hosterman, J.W., 1960, Geology of the clay deposits in the Olive Hill District, 25 75 Alluvium Co–Cobalt Limestone and dolomite are mined in Kentucky for a variety Kentucky. Tar sands (asphaltic sandstone) mined in west-central Cu–Native copper Kentucky: Kentucky Geological Survey, ser. 10, Reprint 5, 23 p. Limestone Natural Gas F–Fluorite of products, including construction aggregate, lime, cement, Kentucky have been used as road aggregate and are also a Brant, R.A., Chesnut, D.R., Portig, E.R., and Smath, R.A., 1983, Coal resources of the Upper Cumberland ss Active sandstone quarry Fe–Iron District, Kentucky: University of Kentucky Institute for Mining and Minerals Research, Energy Sable, E.G., and Dever, G.R., Jr., 1990, Mississippian rocks in Kentucky: U.S. Geological Survey Gyp–Gypsum and agricultural limestone. Coal-related industries use limestone potential source of petroleum. 200 3.00 20 60 OIL and GAS Mo–Molybdenum Resource Series, 41 p. Professional Paper 1503, 125 p. ss Abandoned sandstone quarry Mn–Manganese for controlling acid drainage, mine reclamation, explosion Geologists at the Kentucky Geological Survey have Ni–Nickel abatement in underground mines, and in scrubbers at coal- investigated the mineral and fuel resources of Kentucky for Chesnut, D.R., Jr., 1992, Stratigraphic and structural framework of the Carboniferous rocks of the central Smith, G.E., and Brant, R.A., 1978, Western Kentucky coal resources: University of Kentucky d Abandoned dimension stone quarry Pb–Galena Natural Gas Major oil-producing area; dashed green Appalachian Basin in Kentucky: Kentucky Geological Survey, ser. 11, Bulletin 3, 42 p. Institute for Mining and Minerals Research, Energy Resource Series, 148 p. 150 line is used to continue the outline of oil-producing S–Native sulfur burning power plants to reduce sulfur emissions entering the more than 150 years, as mandated by Kentucky Revised Statute. 2.25 15 45 Sr–Strontium m Abandoned millstone quarry area through areas indicating the presence of atmosphere. One of the largest operating limestone quarries in Questions concerning the mineral and fuel resources of Kentucky Oil other resources. Ti–Titanium Cobb, J.C., and Dever, G.R., Jr., 1994, Limestone and lime for SO2 and pollutant control in the Ohio Trace, R.D., and Amos, D.H., 1984, Stratigraphy and structure of the Western Kentucky Fluorspar Zn–Sphalerite the United States is located in Kentucky. should be directed to the Director, Kentucky Geological Survey, Valley: Kentucky Geological Survey, ser. 11, Information Circular 49, 5 p. District: U.S. Geological Survey Professional Paper 1151-D, 41 p. s Active sand pit Oil (Million Dollars) 100 1.50 10 30 Major gas-producing area Kimberlite dikes Kentucky has an estimated original petroleum resource of 228 Mining and Mineral Resources Building, University of Oil (Million Barrels) Cobb, J.C., and Eble, C.F., 1992, Sulfur in Kentucky coal and the Clean Air Act Amendments of 1990: Weisenfluh, G.A., Cobb, J.C., Ferm, J.C., and Ruthven, C.L., 1998, Kentucky’s coal industry: Coal (Billion Dollars) s Abandoned sand pit 2.3 billion barrels of mobile oil, 3.4 billion barrels of heavy Kentucky, Lexington, KY 40506-0107. The Kentucky Kentucky Geological Survey, ser. 11, Information Circular 38, 14 p. Feet) Cubic (Billion Gas Zn Zinc deposit Historical trends and future opportunities: Kentucky Geological Survey, ser. 11, Information Active sand and gravel pit oil, and more than 100 trillion cubic feet of natural gas resources. Geological Survey maintains the official State repository of sg Luzurne Circular 59, 9 p. 5 15 At least 0.75 billion barrels of oil and 4.7 trillion cubic feet of oil and natural gas drilling records, the official Ground-Water Dever, G.R., Jr., 1980, High-carbonate and low-silica stone in the High Bridge Group (Middle Ordovician), Limestone, Natural Gas, and Oil 50 0.75 Gas-storage field Zn Zinc exploration shaft dg Active dredge natural gas have been produced in Kentucky. In western Data Repository, the Kentucky Well Sample and Core Library, Fayette County, central Kentucky: Kentucky Geological Survey, ser. 11, Information Circular 4, More information on publications about Kentucky’s mineral resources is available in the Kentucky 45 p. Geological Survey’s List of Publications, available free upon request to the Survey. sis Abandoned silica sand pit Red dashed line indicates area of Kentucky, oil and some natural gas are produced primarily and other databases on coal, minerals, geology, maps, and 0 0 Tar sand resource area fluorite occurrence from Mississippian and Pennsylvanian rocks. In central paleontology. This information is used by thousands of citizens 0 0 s Deposit; s–sand; sis–silica sand; g–gravel; 18801900 1920 1940 1960 1980 2000 sg–sand and gravel; ss–sandstone; ch–chert; Kentucky, oil and natural gas are produced from Ordovician each year. 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 Year Source: Kentucky Geological Survey d–dimension stone; Pc–Pennsylvanian ts Tar sand occurrence Year Source: Kentucky Department of Revenue–Severence conglomerate Faults Tax Division; data on file at Kentucky Geological Survey, U.S. Bureau of Mines, and U.S. Geological Survey