@article{article509287ac, title = {Regional variations within the parana flood basalts (southern brazil): evidence for subcontinental mantle heterogeneity and crustal contamination}, author = {Piccirillo, E M and Civetta, L and Petrini, R and Longinelli, A and Bellieni, G and Comin-Chiaramonti, P. and Marques, Leila Soares and Melfi, Adolpho José}, year = {1989}, doi = {10.1016/0009-2541(89)90023-5}, journal = {Chemical Geology} }