Montecinos, P., C. Fuentealba, L. Aguirre, F. Hervé, E. Fonseca, and M. J. . Haller. “Very Low Grade Metamorphism Associated With a Geothermal System in Basic Volcanic Rocks of the Middle Jurassic, Lonco Trapial Formation, Paso Berwin, Extra-Andean Chubut”. Revista De La Asociación Geológica Argentina, vol. 59, no. 4, Dec. 2004, pp. 607-18, https://revista.geologica.org.ar/raga/article/view/1437.