James St. John:
Black shale over limestone (Blocher Member, New Albany Shale, Upper Devonian over North Vernon Limestone, Middle Devonian; drill core from Kavanaugh # 1-3 well, Daviess County, Indiana, USA) 1
James St. John:
Black shale over limestone (Blocher Member, New Albany Shale, Upper Devonian over North Vernon Limestone, Middle Devonian; drill core from Kavanaugh # 1-3 well, Daviess County, Indiana, USA) 2
James St. John:
New Albany Shale over North Vernon Limestone (Upper Devonian over Middle Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, USA) 1
James St. John:
New Albany Shale over North Vernon Limestone (Upper Devonian over Middle Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, USA) 2
James St. John:
New Albany Shale over North Vernon Limestone (Upper Devonian over Middle Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, USA) 3
James St. John:
New Albany Shale over North Vernon Limestone (Upper Devonian over Middle Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, USA) 4
James St. John:
New Albany Shale over North Vernon Limestone (Upper Devonian over Middle Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, USA) 5