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Petrography and geochemistry of the El Retamo Basanite: new evidence of Triassic magmatism in Sierra de Valle Fértil, province of San Juan.
The El Retamo Basanite, located in the northern sector of Sierra de Valle Fértil, is a new evidence of alkaline volcanism related to the Triassic for this region. It is interpreted as the remnant of a lava flo...