Page 1 - i1052-5173-28-5
P. 1

MAY | 2018 | VOL. 28, NO. 5  4–7 Nov. GSA 2018 Annual Meeting & Exposition

                                    A PUBLICATION OF THE GEOLOGICAL SOCIETY OF AMERICA®

                                              Is the “Grenville Front”
                                               in the central United
                                                States really the

                                                 Midcontinent Rift?
   1   2   3   4   5   6