Plate 1 - USGSNaranjito Formation Krf Río de la Plata Sandstone Krf, lava members Krc, conglomerate...
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Plate 1 - USGSNaranjito Formation Krf Río de la Plata Sandstone Krf, lava members Krc, conglomerate member SOUTHERN PART OF AREA Kna np Los Negros Formation Kna, andesite member Knp,
