East Louden Anticline (Discarded)

Location

T8N, R3E, Fayette County

References

Newton 1941

Description

Newton (1941) mapped the structure of the "upper Bogota" limestone in Effingham, Fayette, and Shelby Counties, and he named several anticlines. The "upper Bogota," according to Newton, is a Pennsylvanian limestone located 40 to 150 feet (12-45 m) above the La Salle Limestone Member of the Bond Formation. Subsequent studies (Hopkins and Simon 1975, Weibel 1986) have considerably revised Missourian and Virgilian (upper Pennsylvanian) stratigraphy. Newton's "upper Bogota" almost certainly is not the Bogota Limestone Member of current usage; its identity is uncertain. Considering the poor quality of logs available to Newton and the doubtful correlations, Newton's structural interpretations are questionable.

The East Louden Anticline was mapped directly southeast of and trending parallel to the Louden Anticline, the existence of which is indisputable. Treworgy (personal communication 1981) stated that "recent unpublished structure maps on Beech Creek ("Barlow") Limestone and Ste. Genevieve Limestone indicate this feature (East Louden oil pool) to be stratigraphic, not structural." The name should therefore be discontinued.