Chiarenzelli, J.R., Lupulescu, M.V., Cousens, B., Thern, E., Coffin, L., Regan, S., 2010. Enriched Grenvillian Lithospheric Mantle as a Consequence of Long-lived Subduction Beneath Laurentia. Geology 38, 151-154. doi:10.1130/G30342.1