Pages authored by Harold C. Hutchison:

1. Rock Unit Names / Staunton Formation
   Raccoon Creek Group,Type locality, history of name, and related nomenclature: The Staunton Formation was named by Cumings (1922, p. 525) for rocks exposed near Staunton, Clay County.
2. Raccoon Creek Group / Brazil Formation
   Type locality and history of name: The Brazil Formation as originally named by Fuller and Ashley (1902, p. 2) for Brazil, Clay County, Ind., included the rocks in the interval between the top of the Mansfield Sandstone and the bottom of the Petersburg Coal (Springfield Coal Member of present usage).
3. Raccoon Creek Group / Mansfield Formation
   Type area and use of name: The Mansfield Formation was originally named the Mansfield Sandstone by Hopkins (1896, p. 199-200) for rocks exposed at Mansfield, Parke County, Ind.
4. Brazil Formation / Lower Block Coal Member
   Type locality and use of name: The term Lower Block Coal was first used formally by Ashley (1909, p. 57-58), who earlier (1899, p. 90, 103) had cited lower block coal as an informal usage.
5. Brazil Formation / Minshall Coal Member
   Type locality and use of name: The term Minshall Coal was first applied formally by Ashley (1909, p. 57) to the coalbed below the limestone at the now-abandoned mining town of Minshall, Parke County. In now-obsolete usage the name Minshall was also applied to the closely overlying limestone as well as other limestones.
6. Brazil Formation / Upper Block Coal Member
   Type locality and use of name: The name Upper Block Coal was first used formally by Ashley (1909, p. 57-58), who earlier (1899, p. 90, 103) had cited the term upper block coal as an informal usage.
7. Mansfield Formation / Blue Creek Coal Member
   Type section: The Blue Creek Coal Member, named by Gray, Jenkins, and Weidman (1960, p 25, 71, 72), consists of the coal mined extensively on Coal Mine Ridge at the headwaters of Blue Creek in southeastern Martin County and in northeastern Dubois County, Ind. The type section is in an abandoned strip mine in the SW¼NW¼ sec.
8. Mansfield Formation / French Lick Coal Member
   Type section and use of name: The name French Lick was first applied to an exposure of coal in a whetstone quarry said to be in the SW¼NW¼ sec. 4, T. 2 N., R. 2 W., near French Lick, Orange County, Ind. (Franklin, 1939, p. 9).
9. Mansfield Formation / Mariah Hill Coal Member
   Type locality and use of name: The name Upper Mariah Hill Coal was originally used for a coalbed mined by the Mariah Hill Super Block Coal Co. in secs. 19 and 20, T. 4 S., R. 4 W., one-quarter mile (0.4 km) southeast of Mariah Hill, Spencer County, Ind. (Franklin and Wanless, 1944, p. 87, 89).
10. Mansfield Formation / Shady Lane Coal Member
    Type section and use of name: The name Shady Lane was first applied by Hutchison (1960, p. 12) to the coal exposed in the stream valley in the SE¼ sec. 23, T. 13 N., R. 6 W., near Shady Lane on U.S. 40, Clay County, Ind.
11. Mansfield Formation / St. Meinrad Coal Member
    Type locality and use of name: The name St. Meinrad Coal was given by Franklin and Wanless (1944, p. 87-88) to the coal mined near St. Meinrad, Spencer County, Ind., but no specific type section or other exposure was stated. This coal lies stratigraphically 160 to 180 feet (49 to 55 m) below the top of the Mansfield Formation.
12. Staunton Formation / Perth Limestone Member
    Type section and use of name: The Perth Limestone Member was named by Hutchison (1960, p. 19-21) for exposures in the abandoned surface mine in the SW¼NE¼ sec. 3 T. 13 N., R. 7 W., near Perth, Clay County, Ind.
13. Staunton Formation / Seelyville Coal Member
    Type locality and use of name: The name Seelyville was applied casually by Ashley (1909, p. 31, chart opposite p. 97) to the thick coalbed mined underground at Seelyville in Vigo County, Ind. No specific type section was designated.
14. Staunton Formation / Silverwood Limestone Member
    Type section and use of name: The name Silverwood was applied by Alexander (1943, p. 143) to a well-developed cyclothem and limestone exposed near Silverwood, Fountain County, Ind., about a quarter of a mile (0.4 km) north of Indiana 234 on the east side of Coal Creek. This exposure in the SE¼NW¼ sec.