@misc{indiciaeafef169416aa, title = {Map showing the relationship of selected mafic and ultramafic bodies in the crust of the eastern United States to seismically active areas}, author = {Lucy McCartan and S. L. Snyder and C. W. Stover}, year = {1991}, doi = {10.3133/mf2143}, url = {https://pubs.usgs.gov/publication/mf2143}, note = {Source identifier: mf2143} }