@misc{indiciae4bf20181936a, title = {Petrology, isotope characteristics, and K-Ar ages of the Maranhão, northern Brazil, Mesozoic basalt province}, author = {R.V. Fodor and A.N. Sial and S.B. Mukasa and E.H. McKee}, year = {1990}, doi = {10.1007/bf00306664}, url = {https://pubs.usgs.gov/publication/70016225}, note = {Source identifier: 70016225} }