CURRICULUM VITAE Isabel Medina Yarza February 2014

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1 CURRICULUM VITAE Isabel Medina Yarza February 2014 PERSONAL INFORMATION Date of Birth: 1959/03/29, Montevideo/Uruguay ID/Passport: , Uruguay United State Visa, valid until web: Current job: Consultant Geologist, prospecting and exploration. Specialist in Energy Management UNIT-ISO The last years ISABEL MEDINA YARZA has worked as a geologist in the sector of mining titles in the company Loryser S.A. Group OROSUR MINING Inc ( interacting with manager surveyor of mining properties, notary, lawyers, exploration geologists, accountants and other professionals. One of its functions was to make technical field reports of the different mining titles of the company to present at the Geological Survey of Uruguay. She has worked as mine geologist (ore control) in Arenal Gold Mine (Department of Rivera-Uruguay) belonging to the Uruguay Mineral Explorations Inc. group. Also has worked on several projects for prospecting and exploration as a field geologist in other companies. She has worked on several research projects at the university level in Uruguay (Mahoma Gold Mine) and Brazil (Igarapé Bahia Gold Mine, Carajás Iron Mine). She has been teaching in the Department of Geology at the University of the Republic in Montevideo (Uruguay). Also has been teaching in high school in the area of Earth Science (Astronomy, Geography and Geology) in various educational establishments of high school in Montevideo. Research interests: Geology of mineral deposits. Energy management and renewable energy EDUCATION / Titles Specialist in Energy Management UNIT-ISO Uruguayan Institute of Technical Standards. Montevideo / Uruguay Master in Engineering. Post graduate Program in Mining Engineering, Metallurgical and Materials. School of Engineering, Federal University of Rio Grande do Sul, UFRGS, Porto Alegre, Brazil. Thesis: "Structural control of gold occurrences associated with quartz veins in the region of Mahoma (San Jose Department, Uruguay) Graduate in Geology. Science School. Republic University - UDELAR. Montevideo / Uruguay Graduated to high school teacher: Astronomy. Artigas Teachers Institute, IPA. Montevideo / Uruguay.

2 Graduated to high school teacher: Geographical Sciences. Artigas Teachers Institute, IPA. Montevideo / Uruguay. LANGUAGES Native language: Spanish Understanding: English (Good), Portuguese (Very good). Speak: English (Good), Portuguese (Very good). Reads: English (Very good), Portuguese (Very good). Writes: English (Very Good), Portuguese (Good). COMPUTING Actual: SIG: MapInfo. Graphic Design: Acad, Corel, Photoshop and others. Geology: Stereonet, Minpet. Geostatistics: Geo-eas, Variowin, Varfit and others. Microsoft Office environment: all Representações gráficas em Geociências. DEMIN- UFRGS, Porto Alegre- RS/Brasil Basic CAD. Dpto. de Expressão Gráfica da Faculdade de Arquitetura. UFRGS, Porto Alegre-RS/Brasil D Geological Modeling. Lynx Geosystems of Brazil y DEMIN- UFRGS, Porto Alegre-RS/Brasil Operador PC (Udelar-SCI) *Good disposition for learning any new software PROFESSIONAL AFFILIATIONS SUG Uruguayan Society of Geology (Member of the commission directive) ALGU Association of Graduates in Geology of Uruguay (Founding partner & member of the commission directive). PROFESSIONAL ACTIVITY Current: Consultant Geologist, prospecting and exploration. Specialist in Energy Management UNIT-ISO January June Loryser S.A. / Orosur Mining Inc. Montevideo / Uruguay Position: Geologist at Department of Mineral Properties. Activities: perform Technical Report to be submitted to the National Direction of Mining and Geology, associated with the mining properties of the company. Knowledge and application of the Mining Code in usual tasks (classes of minerals, prospecting, exploration, exploitation, mining easements, changes of ownership, mining reserve). Use and maintenance of the GIS support of mining properties. Calculations of payments (presentation rate, prospecting rights rate, surface royalty, production royalty, etc.). Solicitation of certificates for imports of machinery and supplies for the mining industry. Publication of news, Official Journal and Local Journal, about the progress in obtaining

3 mining properties. Control timesheet of mining properties and maturity check. Requests for guarantees for damages to surface, financial documentation, and other official certificates that guarantee the correct operation of the project. Permanent interaction with the team: Surveyor Mining Property Manager, notary, another geologists, accountants and lawyers. Coordination with environmental area of the company to obtain the Prior Environmental Authorization, from the National EnvironmentalDirection. Competencies and skills: teamwork attitude, communication, flexibility, initiative, reliability, responsibility and negotiation. February December Triselco S.A. / UruguayMineral Exploration Inc. Montevideo / Uruguay Position: Geologist at the Department of Mineral Properties. Montevideo / Uruguay Activities: previous similar. Noviembre Enero Loryser S.A. /Uruguay Mineral Exploration Inc. Minas de Corrales-Rivera/Uruguay Position: Mine Geologist. Activities: technical decisions in relation to sampling processes mine, mineral extraction, ensuring the supply to the beneficiation plant, interacting with other technical team. Organize and control sampling procedures in mine and evaluate performance of subordinates. Logging of blasthole samples, generation of geological maps each 2 extraction banks. Ore and gangue minerals signalling in extraction, and mineral load fronts. Define place to stock pile according mineral grade, input prior to processing plant. Mine planning collaboration. Perform and supervise banks mineralization mapping extraction and database management. Perform geotechnical windows problem areas and calculation of RMR. Observing and recording hydrogeological data, controlling the level of groundwater in perimeter wells to open pit. Report writing incidents or accidents and perform preliminary research taking appropriate corrective measures. Competencies and skills: teamwork attitude, communication, flexibility, initiative, reliability, responsibility, negotiation with subordinates and superiors. Marzo Octubre Delcosur S.A. Position: prospecting and exploration geologist. San José & Colonia/Uruguay. Activities: stream sediment survey, selection of sampling points to geochemistry and calculation of areas of influence, using GIS. Soil prospecting: drilling soils and quaternary coverage up to the rock and sampling for chemical analysis according to geological criteria. Lithological prospecting: geological survey of areas and rock sampling using different methods according to specific alterations and mineralization. Perform lithological description and enter the data into the GIS, using sampling points raised with GPS. Exploration trenches: detailed mapping of the trench profile, including lithological contacts, alteration and mineralization, structural measures. Carry out sampling along the profile for chemical analysis. Decide the size of the samples based on specific alterations, rock type, and other features. Competencies and skills: teamwork attitude, communication, flexibility, initiative, reliability and responsibility. Marzo Febrero National Council for Scientific and Technological Development, CNPq. Federal University of Rio Grande do Sul, UFRGS. Porto Alegre / Brazil, Carajás-Pará/Brasil. PhD Scholarship. Position: geologist researcher in brecciated structures hosting mineralization iron-oxide Cu-Au in Igarapé Bahia mine - Carajás Mineral Province, Pará, Brazil.

4 Marzo Febrero University of the Republic, UDELAR- Montevideo - Uruguay / Federal University of Rio Grande do Sul, UFRGS-Porto Alegre-Brazil. Master scholarship. Position: geologist researcher in the "Structural Control of mineralized quartz veins in Mahoma Mine Gold - San Jose Department of Uruguay. Project funded between Brazil and Uruguay. September March University of the Republic, UDELAR- Montevideo - Uruguay. Position: teaching and research geologist Department of Geology Teachers. Acting since September 1993 by Merit Contest. Effective from 1995 until March 2000 by opposition and merits contest. March Dezember Council of High School Education. Montevideo /Uruguay. Professor of high school, in Geography, Astronomy and Geology. LAST COURSES Specialist in Energy Management UNIT-ISO UNIT (Uruguayan Institute of Technical Standards). Montevideo-Uruguay. Courses: Calculation and management of carbon footprint. Audits energy management. Specific tools for energy management. Implementation of standard UNIT-ISO Energy matrix and sustainable energy. Energy efficiency. Manuals and documents management systems. Quality management and integrated systems. Standardization and conformity evaluation Mining Law. Republic University. Montevideo-Uruguay. Posgraduate/Law School. POSGRADUATE COURSES Doctor level Federal University of Rio Grande do Sul, Porto Alegre Brazil Courses: Petrology of volcanic rocks. Isotope geochemistry applied to Mineral Deposits. Mineralogy ofclays. Geochemistry ofgranitic rocks Master level Courses: Structural Control of Ore Deposits. Applied Structural Geology. Gold Metallogenesis. Metallogenic models.

5 Granitic rocks, minerals and mineralization. Geostatistics. Economics aspects in deposits evaluation. Mine Geology. Exploration of gold, copper and níkel. Data integration in mineral research. TRAINING COURSES Tools for supervision and middle management. Escuela de Alta Gerencia, ESAG Negotiation techniques business level. Escuela de Alta Gerencia, ESAG Sedimentary Basin Analysis. Dr.Ferrán Colombo de launiversidad de Barcelona/España Geochronology Basics. Dr.Antonio Artur de la Universidad Estadual Paulista- UNESP- Campus de Río Claro, San Pablo/Brasil Continental Sedimentation. Dr. Ferrán Colombo de la Universidad de Barcelona/España Structural Petrology. Dr. Ángel Fernández de la Universidad de Limoges/Francia Geotectonics. Dr. Víctor Ramos. Universidad de Buenos Aires, UBA- Argentina Granitic rocks, classification and discrimination. Dr. Lauro Nardi de la UFRGS Universidad Federal de Río Grande del Sur-Porto Alegre/Brasil Basics of Geotectonics. Dr. Víctor Ramos de la Universidad de Buenos Aires- Argentina. UNESCO Sociedad Uruguaya de Geología -Universidad de la República Elementary knowledge of the state economic and financial. GERGU, Geographical Research Methodology. ANPG, Teaching methodology and geographical research. Universidad Nacional de Cuyo, Mendoza/Argentina Meteorologist Technician Class III. Escuela Nacional de Meteorología. Ministerio del Interior, Dirección Nacional de Meteorología,

6 EVENTS Que minería para que desarrollo. 9 as Jornadas de Red Temática del Medio Ambiente, RETEMA. Facultad de Ciencias, Udelar Dez Anos de Microssonda em Porto Alegre, expositora. Porto Alegre-RS/ Brasil Primer Simposio sobre Vulcanismo y Ambientes Asociados. Gramado- RS/Brasil. Boletim de Resumos II Congreso Uruguayo de Geología, expositora. Punta del Este/Uruguay VI Simposio Nacional de Estudios Tectónicos, realizado por la Sociedad Brasilera de Geología, núcleo Brasilia, del 5 al 9 de mayo de 1997, Pirenópolis, Goiás/Brasil Primer Congreso Uruguayo de Geología, 25 al 27 de abril, organizado por la Sociedad Uruguaya de Geología (SUG), ll Encuentro de Geógrafos de América Latina, ll Encuentro Internacional para la Protección del Medio Ambiente, 16 al 18 de setiembre. Paysandú/Uruguay Pragmática Ambientalista, entre los días 18 al 28 de enero. GERGU, Vida y Cosmos : un enfoque interdisciplinario. Departamento de Astronomía, Facultad de Humanidades y Ciencias, Diagnóstico de los factores alterados del Medio Ambiente de nuestro país, 19 al 29 de enero. Organizado por: GERGU (Grupo de Estudio y Reconocimiento Geográfico del Uruguay), V Encuentro de Astrónomos Aficionados. Planetario Municipal, Jornada Académica en Homenaje al Profesor Pablo Fierro Vignoli, Tema: Abastecimiento y Servicios de la Ciudad de Montevideo. Departamento de Geografía, Facultad de Humanidades y Ciencias Fundamentación Metodológica y Actualización Docente en Astronomía. Inspección de Astronomía, Tercer Encuentro de Astrónomos Aficionados, Planetario Municipal, Montevideo, Uruguay XVII Cursos Internacionales de Verano de actualización docente en Ciencias Geográficas. Universidad de la República, Reconocimiento Geográfico General del país, GERGU, Montevideo, Uruguay Jornadas Universitarias de Geografía. Departamento de Geografía, Facultad de Humanidades y Ciencias, Experiencias y problemas de integración interdepartamental, GERGU, Primer Encuentro de Astrónomos Aficionados. Planetario Municipal, Montevideo, Uruguay Ampliación de conocimientos de astronomía a nivel docente. CONAE, Bases e implementos para un estudio geográfico integral del país. GERGU, TEACHING Universidad de la República - Facultad de Ciencias (Montevideo-Uruguay) Docente grado 1, 20 hrs, Departamento de Geología. Ingreso por concurso de méritos. Cargo efectivo desde julio de 1995 hasta marzo del 2000 por

7 concurso de Oposición y Méritos. Desde 1997 hasta 2000, se otorga Licencia Especial para la realización de posgrado en Brasil. Actividad año er semestre Dictado de clases Teórico-prácticas, curso: Complementos de Mineralogía. Dpto. de Geología. Dictado de clases Teórico-prácticas, curso Cartografía-Topografía. Dpto. de Geología. 2º semestre Dictado de clases Teórico-prácticas, curso: Geología Estructural. Dpto. de Geología. Actividad año er semestre Dictado de clases Teórico-prácticas, curso: Geología General 1. Dpto. de Geología. Colaboración en el curso de Sedimentología. 2º semestre Dictado de clases Teórico-prácticas, curso: Geología Estructural. Dpto. de Geología. Actividad año er semestre Sin actividad de enseñanza debido a la realización del curso de posgrado en Geotectónica en la Universidad de Buenos Aires a cargo del Dr. Víctor Ramos. 2º semestre Dictado de clases prácticas, curso: Geología Estructural. Dpto. de Geología. Organización salida de campo a la zona de Isla Patrulla (Dpto. Treinta y Tres), correspondiente a la asignatura Geología Estructural. Dictado de aula teórica Devónico-Pérmico en el Uruguay a estudiantes de las Licenciaturas de Geografía y Antropología. Actividad año º semestre Dictado de clases prácticas, curso: Geología Estructural. Dpto. de Geología. Consejo de Educación Secundaria (Montevideo-Uruguay) Docente del Consejo de Enseñanza Secundaria en las especialidades: Geografía, Astronomía y Geología. PUBLICATIONS Yarza,M. I. M.; Formoso, M. L. L.; Pires, K. C. J Estudo da Cloritização na zona brechada principal da Mina do Igarapé-Bahia. Anais Dez Anos de Microssonda Eletrônica em Porto Alegre. ILEA/UFRGS, Porto Alegre, Brasil, p: Formoso, M. L. L.; Pires, K. C. J.; Yarza, M. I.M.; Bongiolo, E. M.; Mexias, A. S.; Dani, N.; Conceição, R. V O uso de microssonda eletrônica no estudo das assembléias minerais ígneas, metamórficas, de alteração hidrotermal e intempérica. Anais Dez Anos de Microssonda Eletrônica em Porto Alegre. ILEA/UFRGS, Porto Alegre, Brasil, p: Yarza,M.I.M Brechas: Características gerais e sua importancia como hospedeiras de depósitos minerais. Monografia de Qualificação para doutorado,23p. Yarza,M. I. M Control Estructural de las ocurrencias de oro relacionadas

8 avenas de Cuarzo en la región de Mahoma (San José-Uruguay). Tesis, Departamento de Ingeniería de Minas de la Universidad Federal de Río Grande del Sur UFRGS, 160p. Preciozzi, F.;Yarza, M. I. M Caracterização geoquímica dos fácies vulcânicos associados ao grupo Lavalleja (Uruguay). 1 º Simpósio sobre Vulcanismo e Ambientes Associados. Gramado-RS-Brasil, p:77 Porta, F. P.; Yarza, M.I.M.; Strieder, A.J Vulcanismo associado ao Cinturão San José (Uruguai). 1 º Simpósio sobre Vulcanismo e Ambientes Associados. Gramado-RS-Brasil, p:81 Porta, F. P.;Yarza, M.I.M Mineralizações associadas ao Grupo Lavalleja (Setor Minas-Pan de Azúcar, Uruguai). 1 º Simpósio sobre Vulcanismo e Ambientes Associados. Gramado-RS-Brasil, p: 90 Medina Yarza, M. I.;1998. Structural control of Au-Qtz veins in the Mahoma mine) San Jose Dept.,Uruguay). EGATEA. Mining School Journal/Federal University of Rio Grande dosul. MedinaYarza, I.; Strieder, A.; Costa, J. F; Evaluación geoestadística de concentraciones de oro en sedimentos de corriente, San José (Uruguay). Actas del II Congreso Uruguayo de Geología. Sociedad Uruguaya de Geología. p Oyhantçabal, P; Masquelín, E; Sanchéz, L; MedinaYarza, I Memoria Explicativa de la Carta Geológica correspondiente al Fotoplano Velásquez. Facultad de Ciencias. Universidad de la República. Montevideo-Uruguay (D-25) Yarza, M. I. M.;Miranda, S Memoria Explicativa y Carta Geológica de un sector del Fotoplano Fuente del Puma a escala 1: Facultad de Ciencias-Universidad de la República. References and original documents: available.