The convergence of the Nazca and South American Plates has deformed and pushed up limestone strata to form towering peaks of the Andes, as seen here in the Pachapaqui mining area in Peru. (Photograph by George Ericksen, USGS.)

"Understanding plate motions"

URL: https://pubs.usgs.gov/publications/text/Nazca.html
Last updated: 05.05.99
Contact: bhanks@usgs.gov