Historical:Tippecanoe Sequence

Chronostratigraphy: Paleozoic Erathem >>Ordovician System >>Silurian System >>Devonian System
Allostratigraphy: Tippecanoe Sequence

Authors

H. B. Willman and T. C. Buschbach

Name Origin

The Tippecanoe Sequence (Sloss et al., 1949, p. 115) is named for Tippecanoe County, Indiana.

Stratigraphic Position

The Tippecanoe Sequence consists of the strata overlying the Sauk Sequence and underlying the Kaskaskia Sequence (fig. 14). In Illinois the base of the sequence is at the sub-St. Peter--Everton (sub-Champlainian) unconformity (fig. O-13), and the top is bounded by the sub-Dutch Creek--Wapsipinicon (sub-Middle Devonian) unconformity (fig. D-7). It, therefore, includes strata of middle to late Ordovician, Silurian, and early Devonian age. Although minor or local unconformities occur within the sequence, its formations have a similar tectonic environment and are generally parallel throughout the state. They overlap the more deformed Sauk Sequence, and, in turn, were deformed and partly truncated before they were overlapped by the Kaskaskia Sequence.

Fig. 14 -- Pre-Pennsylvanian megagroups and sequences of Illinois (Swann and Willman, 1961). Fig. O-13 -- Geologic map of the sub-St. Peter surface in northern Illinois. Fig. D-7 -- Geologic map of the sub-Kaskaskia surface.

References

SLOSS, L. L., W. C. KRUMBEIN, and E. C. DAPPLES, 1949, Integrated facies analysis, in Sedimentary facies in geologic history: Geological Society of America Memoir 39, p. 91-123.

ISGS Codes

Stratigraphic Code	Geo Unit Designation
6160	--