Geologic Unit: Wabash

Usage:

Wabash Formation of Salina Group (IN-northern)
Wabash Formation (IN-southern and westernmost)

Subunits:

(alphabetical) --all in IN: Kenneth Limestone Member, Kokomo Limestone Member, Liston Creek Limestone Member, Mississinewa Shale Member, Red Bridge Limestone Bed.

Geologic age:

late Silurian

Type section, locality, area and/or origin of name:

Type area: Upper Wabash Valley in Carroll, Cass, Miami, Wabash, and Huntington Cos. (Pinsak and Shaver, 1964).
Principal reference sections (all in IN; Pinsak and Shaver, 1964):
(1, subsurface) Northern Indiana Public Service Company Gale M. and Glada Skinner No. 1 well, in NW/4 NW/4 sec. 10, T. 28 N., R. 1 W., near Royal Denter, Cass Co.;
(2) Indiana Highway 13 roadcut south of Wabash and Wabash River, sec. N/2 J.B. Richardville Reserve No. 8, in T. 27 N., R. 6 E., Wabash Co.;
(3) Big Four Railroad cut in Wabash, Wabash Co.;
(4) Erie Stone Company, quarry just east of Huntington, in SE/4 sec. 12, T. 28 N., R. 9 E., Huntington Co.;
(5) May Stone and Sand, Inc., quarry southwest edge of Fort Wayne, in NW/4 sec. 29, T. 30 N., R. 12 E., Allen Co.

AAPG geologic province:

Cincinnati arch