TY - BOOK AU - Weems, R. E. CN - I 19.76: CY - Reston, VA : CY - [Denver, CO : DA - 1998. ID - 218619 KW - Geology, Structural KW - Geology, Structural KW - Geology, Structural KW - Geology, Structural N1 - Cover title. N1 - Shipping list no.: 99-0518-M. PB - U.S. Geological Survey ; PB - Branch of Information Services, distributor], PP - Reston, VA : PP - [Denver, CO : PY - 1998. T1 - Newly recognized en echelon fall lines in the Piedmont and Blue Ridge provinces of North Carolina and Virginia, with a discussion of their possible ages and origins TI - Newly recognized en echelon fall lines in the Piedmont and Blue Ridge provinces of North Carolina and Virginia, with a discussion of their possible ages and origins ER -