September <i>GSA Today</i> Cover Image (IMAGE)
Caption
Iron-rich silcrete mantles beveled quartzite in south-central South Africa. Deep valleys dissect the landscape and steep hillslopes separate the valley bottoms from the flat, gently sloping pediments.
Credit
Paul Bierman and <i>GSA Today</i>.
Usage Restrictions
Credit Paul Bierman and <i>GSA Today</i>.
License
Licensed content