Ronald Blakey, Northern Arizona University, Department of Geology
This web-site contains files showing simple cross sections of one or more states in selected North American orogenies (mountain building events). Major structures, elements, and rock units are shown. The orogenies covered here include the Wopmay, Taconic, Acadian, Alleghanian, Palisades, Antler, Ancestral Rockies, Sonoman, Sevier and Laramide.
This description of a site outside SERC has not been vetted by SERC staff and may be incomplete or incorrect. If you
have information we can use to flesh out or correct this record let us know.