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Approximate limit of Sg |
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Approximate limit of mappable Greenfield Dolomite and Tymochtee Dolomite |
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Eastern limit of Scse |
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Eastern mappable limit of Odwhl, Ow, Oa, Ogl, and Of |
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Limit of Ms - Mc |
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Limit of Omf |
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Limit of Sc-l and Splb |
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Limit of the Ames Limestone |
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Line separating Mlc - Mc |
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Line separating Odw, Odwl, and Ow |
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Line separating the Owa and Ow |
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Mappable limit of Saluda formation |
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Mapping limit of Serpent Mound structure |
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Northern and western limit of Greenfield and Peebles Dolomite, and Lilley Bisher undivided |
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Northern mappable limit of Odwl, Ow, Oa, and Ogl |
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Ogl - Ogll transition |
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Southern and western limit of Salina undifferentiated rocks |
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Southern limit of Dol, Dd |
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Southern limit of Owa |
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Western limit of Scse and Sm-b |
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Western limit of Splb |
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Western limit of Ssu, Scse, and Sm-b |
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Qal - Alluvium |
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Qac - Lithified Stream Deposits (Peebles Quadrangle Only) |
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Qt2 - Second Terrace Deposits (Peebles Quadrangle Only) |
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Qt1 - First Terrace Deposits (Peebles Quadrangle Only) |
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Pd - Dunkard Group (Permian) |
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PIPd - Dunkard Group (Permian-Pennsylvanian) |
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IPm - Monongahela Group |
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IPc - Conemaugh Group |
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IPa - Allegheny Group |
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IPap - Allegheny And Pottsville Groups Undivided |
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IPb - Breathitt Group |
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Mu - Maxville Limestone, Logan Formation, And Cuyahoga Formations Undivided |
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Msbd - Sunbury And Bedford Formations Undivided |
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Mlc - Logan And Cuyahoga Formations Undivided |
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Mc - Cuyahoga Formation |
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Mc-d - Cuyahoga Formation, Sunbury Shale, Berea Sandstone, Bedford Shale Undivided (Serpent Mound Only) |
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Ms-d - Sunbury Shale, Berea Sandstone, And Bedford Shale Undivided (Michigan Basin Only) |
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Ms - Sunbury Shale |
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Mcw - Coldwater Shale |
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Mbbd - Berea Sandstone And Bedford Shale Undivided |
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Mb - Berea Sandstone |
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Mbd - Bedford Shale |
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DMu - Sunbury Shale, Berea Sandstone, And Bedford Shale Undivided |
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Do - Ohio And Olentangy Shales Undivided |
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Doh - Ohio Shale |
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Da - Antrim Shale |
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Dol - Olentangy Shale |
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Dolp - Prout Limestone Member |
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Dolpb - Plum Brook Shale Member |
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Dt - Traverse Group |
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Dd - Delaware Limestone |
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Ddd - Dundee Limestone |
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Dcl - Columbus And Lucas Undifferentiated |
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Dc - Columbus Limestone |
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Ddr - Detroit River Group |
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Sbi - Bass Islands Dolomite |
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Ssg - Salina Group |
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Ssu - Salina Undifferentiated |
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St - Tymochtee Dolomite |
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Stg - Tymochtee And Greenfield Formations Undivided |
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Sg - Greenfield Dolomite |
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Sl - Lockport Dolomite |
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Sbr - Bisher Dolomite |
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Slb - Lilley And Bisher Formations Undivided (Serpent Mound Only) |
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Stgp - Tymochtee, Greenfield, And Peebles Dolomites Undivided (Serpent Mound Only) |
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St-b - Tymochtee Dolomite, Greenfield Dolomite, And Peebles Dolomite, Lilley Formation, And Bisher Formation Undivided |
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Splb - Peebles Dolomite, Lilley Formation, Bisher Formation Undivided |
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Sp - Peebles Dolomite |
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Sli - Lilley Formation |
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Sc-l - Cedarville Dolomite, Springfield Dolomite, Euphemia Dolomite, Massie Shale, Laurel Dolomite Undivided |
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Scse - Cedarville Dolomite, Springfield Dolomite, Euphemia Dolomite Undivided |
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Sdb - Dayton And Brassfield Formations Undivided |
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Se - Estill Shale |
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Snb - Noland And Brassfield Formations Undivided (Peebles Quadrangle Only) |
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Sdnb - Dayton Limestone, Noland Formation And Brassfield Undivided |
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Sm-b - Massie Shale, Laurel Dolomite, Osgood Shale, Dayton Limestone, And Brassfield Limestone Undivided |
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Sb - Brassfield Formation |
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Ssl - Sub-Lockport Undifferentiated |
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Ou - Ordovician Undivided |
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Odp - Preachersville Member |
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Odw - Drakes Formation And Waynesville Formation Undivided |
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Odwl - Drakes Formation, Whitewater Formation, And Liberty Formation Undivided |
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Od - Drakes Formation |
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Os - Saluda Formation |
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Owa - Waynesville Formation And Arnheim Formations Undivided |
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Obf - Bull Fork Formation (Peebles Quadrangle Only) |
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Ow - Waynesville Formation |
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Oa - Arnheim formation |
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Oglf - Grant Lake Formation |
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Ogll - Grant Lake Limestone |
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Ogfl - Grant Lake Formation And Grant Lake Limestone Undifferentiated |
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Ogls - Straight Creek Member |
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Oglc - Corryville Member |
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Oglu - Straight Creek And Corryville Members Undivided |
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Oglb - Bellevue Member |
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Omf - Miamitown Shale-Fairview Formation Undivided |
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Of - Fairview Formation |
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Ok - Kope Formation |
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Op - Point Pleasant Formation |