Greenridge Syncline (Discarded)

Location

Northeastern Macoupin County

References

Ball 1952

Description

Ball's (1952) structure map on the Herrin Coal Member indicates a poorly defined southeast-plunging syncline with no closure. Nelson's map (1987b), based on many more control points than Ball's map, indicates a southeastward homoclinal dip in this area. Use of the name Greenridge Syncline should be discontinued.