TY - RPRT TI - The mesoproterozoic midcontinent rift system, Lake Superior region, USA AU - R.W. Ojakangas AU - G. B. Morey AU - J.C. Green PY - 2001 DO - 10.1016/s0037-0738(01)00085-9 UR - https://pubs.usgs.gov/publication/70023753 ID - 70023753 ER -