Raamatud Ricardo A. Valls
Quality Assurance and Quality Control for the Field Work A Guideline for Private and Public Companies
Ricardo Valls, Ricardo a Valls P Geo
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The Role of Manganese As a Controller for Gold Mineralization in the Serpentinites of the San José de Las Malezas Gold-Quartz Deposit in Santa Clara, Villa Clara, Cuba
Ricardo Valls, Ricardo a Valls P Geo
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Petrographic and Correlation Study of the San José de Las Malezas Quartz-Gold Deposit Santa Clara, Villa Clara, Cuba
Ricardo Valls, Ricardo a Valls P Geo
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Geochemical Evolution of Guatemala's Ophiolitic Belts
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The Geology and Lineament Analysis of the Baja Verapaz District in Guatemala
Dr Vadim Galkine P Geo, Ricardo Valls, Ricardo a Valls P Geo, Vadim Galkine
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Systematics of the Magmatic Processes A Practical Approach to the Study of Petrological Data
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Exploring Geological Data with Weka, CoDaPack, and INZight Graphical Instructions
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