TY - RPRT TI - Exploring the geology of the Midcontinent Rift under western Lake Superior using a preliminary velocity model of seismic line GLIMPCE C AU - V. J. S. Grauch AU - Samuel J. Heller AU - Esther K. Stewart AU - Laurel G. Woodruff PY - 2023 UR - https://pubs.usgs.gov/publication/70245189 ID - 70245189 ER -