The Silver Reef deposits are near the crest of a prominent Anticline.
"The Economic Aspect of Geology"
C. K. Leith
The Anticline has advanced relatively to the syncline.
"The Birth-Time of the World and Other Scientific Essays"
J. (John) Joly
The Cincinnati Anticline was now a peninsula, and the broad gulf which had lain between it and Appalachia was transformed at the beginning of the Pennsylvanian into wide marshy plains, now sinking beneath the sea and now emerging from it.
"The Elements of Geology"
William Harmon Norton