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All Stories

  1. Gems and Their Exploration: A Geological Perspective

    Article • April 2025, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  2. How to Create Contour Maps for Geochemical Data Visualization

    Article • August 2023, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  3. Ten Effective Ways to Visualize Geochemical Data

    Article • August 2023, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  4. Unraveling the Earth's Secrets: How to Interpret Geochemical Data to Identify Alteration Zones

    Article • July 2023, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  5. Unlock the World of Knowledge with Reaserchrabbitapp.com

    Article • June 2023, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  6. BIOGEOCHEMICAL SELECTIVENESS OF CEDARS OVER METAMORPHIC ROCKS OF THE ESCAMBRAY COMPLEX, SANCTI SPIRITUS, CUBA.

    Article • May 2023, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  7. Should I go for a P. Geo. or a Ph.D.?

    Article • May 2023, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  8. El gran mito - CDMB

    Article • February 2023, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  9. The great Myth- CDMB

    Article • February 2023, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  10. Colombia’s current mining crisis

    Article • February 2023, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  11. La arqueología y la geología

    Article • October 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  12. Determinación geoquímica de las serpentinitas

    Article • October 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  13. Crisoprasas en las cortezas de intemperismo niquelíferas

    Article • October 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  14. Nueva Clasificacion Geoquimica de los Elementos

    Article • October 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  15. Los Procesos Geoquímicos como Mecanismos de Formación de Yacimientos Minerales en Las Grutas y la Investigación Preliminar de los Mismos.

    Article • October 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  16. The first description of a VMS deposit in Cuba

    Article • April 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  17. Geology and mineral resources of Northern Haiti

    Article • April 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  18. How manganese affects the deposition of gold.

    Article • April 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  19. Potential for copper and gold mineralization in Northern Haiti

    Article • April 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  20. A VMS discovery in Northern Guatemala.

    Article • April 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  21. Five different sources of gold in one location.

    Article • April 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  22. We can use cokriging as a predictive tool in geochemical exploration

    Article • April 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  23. Using compositional data analysis with enzyme leach data

    Article • April 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  24. A Gradient Method for the Identification of Geochemical Anomalies

    Article • January 2019, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  25. Métodos prácticos para la determinación de elementos usando pruebas químicas.

    Article • November 2018, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  26. Laterites in Guatemala

    Article • July 2018, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  27. Geological evolution of Guatemala

    Article • July 2018, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  28. Compositional data analysis for geologists

    Article • July 2018, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  29. Processing zeros in compositional data analysis

    Article • July 2018, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  30. Diversos trabajos de geología aplicada

    Article • July 2018, Center for Open Science

    P. Geo., M. Sc Ricardo A Valls

  31. Movement of the Caribbean Plate

    Article • Geological Society London Special Publications, January 2009, Geological Society

    P. Geo., M. Sc Ricardo A Valls

  32. An ultra-rich copper deposit in Northern Guatemala.

    Article • Geochimica et Cosmochimica Acta, August 2006, Elsevier

    P. Geo., M. Sc Ricardo A Valls