@misc{indiciae36f9acca3f89, title = {Deep crustal structure of the Precambrian basement beneath northern Lake Michigan, midcontinent North America}, author = {W.F. Cannon and Myung W. Lee and W. J. Hinze and K. J. Schulz and Alan G. Green}, year = {1991}, doi = {10.1130/0091-7613(1991)019<0207:dcsotp>2.3.co;2}, url = {https://pubs.usgs.gov/publication/70016837}, note = {Source identifier: 70016837} }