El Yujo

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Series: GSA Special Papers
Published: 01 January 1991
DOI: 10.1130/SPE262-p115
.... Included in the lower unit is the El Yujo-Duarte subcomplex, which consists of a lower sequence of metabasic lavas, breccias, and tuffs grading through a transitional sedimentary facies into an upper sequence of quartzo-felspathic and quartz-sericite schists. The transitional rocks in drill cores consist...
Journal Article
Journal: Economic Geology
Published: 01 November 2018
Economic Geology (2018) 113 (7): 1653–1655.
... polymetallic deposit, and a mine permit application is awaited for the Romero copper-gold deposit. The book does not describe the smaller mines such as the Mata Grande copper mine, the El Yujo gold mine, and the Hatillo iron ore mines, or the new discoveries at Candelones, Las Animas, and Cerro de Maimon South...