Potassic and Sodic Igneous Rocks from Eastern Paraguay: their Origin from the Lithospheric Mantle and Genetic Relationships with the Associated Paraná flood tholeiites von Comin-Chiaramonit, P., Cundari, A., Piccirillo, E.M., Gomes, C.B., Castorina, F., Censi, P., De Min, A., Marzoli, A., Speziale, S., Velázquez, V.F.

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Potassic dyke swarm in the Sapucai Graben, eastern Paraguay: petrographical, mineralogical and geochemical outlines von Comin-Chiaramonti, P., Cundari, A., Gomes, C.B., Piccirillo, E.M., Censi, P., DeMin, A., Bellieni, G., Velazquez, V.F., Orué, D.

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Alkaline magmatism in the Amambay area, NE Paraguay: The Cerro Sarambí complex von Gomes, C.B., Velázquez, V.F., Azzone, R.G., Paula, G.S.

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Origin and migration timing of hydrothermal fluids in sedimentary rocks of the Paraná Basin, South America von Sant'Anna, L.G., Clauer, N., Cordani, U.G., Riccomini, C., Velázquez, V.F., Liewig, N.

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THE CURRENT SITUATION OF PROTECTION AND CONSERVATION OF THE COLÔNIA IMPACT CRATER, SÃO PAULO, BRAZIL von Colonna, Julianna, Velázquez, V.F., Pletsch, Mikhaela Aloísia Jéssie Santos, da Silva, Gabriela Ananda Rodrigues, Landgraf Junior, Oswaldo, Ferreira, Jânio Marcos Rodrigues, Azevedo Sobrinho, José Maria, Sallun, Alethéa Eranandes Martins, Sallun Filho, William

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Geocronologia da província alcalina central, Paraguai Oriental: considerações preliminares von Velázquez, V.F., Gomes, C.B., Kawashita, K., Comin-Chiaramonti, P.

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