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Javier Robeto, B.Sc. — Rio Grande Project Manager
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 Javier Robeto is a young energetic, trilingual (Spanish, English, German) Argentine geologist who was top of his graduating class in geological sciences at the Universidad Nacional de San Juan in San Juan Argentina in 2005. Javier has received various awards and distinctions for his academic excellence.
In 2003, Javier worked for 4 months in the exploration department at AnglogoldAshanti’s Cerro Vanguardia low-sulphidation Au Mine in Patagonia, Argentina. During his time there Javier was responsible for logging diamond drill holes and marking that core for sampling. Javier also was involved with surface bedrock geological mapping at 1:1000 and 1:5000 scales. Javier completed his undergraduate thesis on the geology, structure and geochemistry of the Mangas 2 vein system, one of the more important high-grade Au ore-bodies in the Cerro Vanguardia district.
Javier joined Minera Antares Argentina S.A. in September of 2004 and since then has been actively involved in geological mapping, core logging, supervision of sampling crews, and detailed trench mapping at Antares’ Rio Grande project. In 2007, Javier was promoted to Project Manager of the Rio Grande Project.
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Ivan Chavez, B.Sc. – Project Geologist
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 Iván Chávez is a young geologist who received his B.Sc. degree from the Universidad Nacional de San Juan in 2004.
In early 2003, Iván worked as for 2 months at the AngloGoldAshanti’s Cerro Vanguardia Mine as a student trainee, where he received training in logging methodologies for diamond and RC drill holes, and also participated in the mapping and sampling of low sulphidation veins.
In 2004 he was involved in a brief regional sampling campaign performed by Minera El Solitario S.A. in the Valle del Cura area, in San Juan Argentina. After this, Iván worked for Minas Argentinas S.A. (Viceroy) as a project geologist at their Gualcamayo Au property. He was there until July 2006, and his responsibilities included: control of drill-sites, RC and core geological and geotechnical logging, geological mapping at 1:5000 scale and rock chip and channel sampling.
Iván joined Minera Antares Argentina S.A. in July 2006 as a project geologist involved with company’s projects in NW Argentina.
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Nelson Caram, B.Sc. – IT and GIS Administrator
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 Nelson Caram received a B.Sc. degree in System Analyses from the Universidad Nacional de la Patagonia Austral (Santa Cruz, Argentina) in 2002 and a postgraduate certificate in GIS from Girona University (Girona, Spain) in 2006.
From 2001 to 2003, he worked as Senior Analyst in Disytel S.A where he was responsible for the analysis, Design, Programming for commercial software’s in different programming languages and engine Databases like SQL Server, Oracle and MySQL.
From 2003 to May of 2007, He worked as GIS and Database Administrator in AngloGoldAshanti’s Cerro Vanguardia Mine. He was responsible for the analysis, design and maintenance of all GIS data and for the geological database (Century Systems) for Cerro Vanguardia’s exploration and geology department.
In May 2007, Nelson joined Minera Antares Argentina S.A. in the role of GIS and Systems Administrator. Nelson is responsible for overseeing all of Antares IT, GIS and database related activities for both Peru and Argentina.
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Estela Ceballos, B.Sc. – Junior Project Geologist
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In March 2007, Estela Fernanda del Valle Ceballos obtained her B.Sc. degree in Geological Sciences from the Universidad Nacional de Salta, in Salta Province, Argentina.
From 2003 to 2006, she worked as a lab assistant in the mineralogy class, at the Faculty of Natural Sciences (Universidad Nacional de Salta). While there, she was trained in infrared spectrometry, electronic microscope and X-ray diffraction techniques. She was responsible for the recognition, description and classification of different minerals.
Estela joined Minera Antares Argentina S.A. in May 2007 in the role of Junior Project Geologist and since then she has been involved in the Rio Grande Project exploration program.
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Lourdes Saiz – GIS Geologist
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Lourdes Saiz Cobbe is a bilingual, advanced student of geology in the Universidad Nacional de Salta in Salta, Argentina. During her career she worked as adjunct student in Research Projects for the University, mainly, studying geological and geochemical aspects of Ordovician phosphates ore deposits in the North-West of Argentina, topic of her graduate thesis.
In 2006, Lourdes worked for seven months in XR GEOMAP as a student trainee. During her time in this company she was involved in data processing and compilation for GIS systems, digitization, and geo-referencing of maps for many consultants companies.
Lourdes joined Minera Antares Argentina S.A. in August of 2007, and since then she has been actively involved in the company’s GIS program, as well as providing support to the Rio Grande Project.
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