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Portovelo: A volcanic-hosted epithermal vein-system in Ecuador, South America

Bibliographic reference VanThournout, F ; Salemink, J. ; Valenzuela, G ; Merlyn, M ; Boven, A. ; et. al. Portovelo: A volcanic-hosted epithermal vein-system in Ecuador, South America. In: Mineralium Deposita : international journal of geology, mineralogy, and geochemistry of mineral deposits, Vol. 31, no. 4, p. 269-276 (1996)
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