@article{article82d6f1f8,
title   = {Potassium-argon dates of basaltic rocks from southern Brazil},
author = {Amaral, Gilberto and Cordani, Umberto G. and Kawashita, Koji and Reynolds, J. H.},
year = {1966},
doi = {10.1016/0016-7037(66)90105-0},
journal   = {Geochimica et Cosmochimica Acta}
}