A space to discuss aspects of the Caribbean geology, ore potential of the ophiolite belts, etc.
Friday, February 20, 2026
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This video provides a technical analysis of the **geodynamic evolution** and **metallogeny** of the **Dominican Republic**, focusing on the **primitive island arc** paradigm and the formation of the world-class **Pueblo Viejo gold deposit**. We explore the synergistic convergence of **tectonic, magmatic, and geochemical controls**, such as **tholeiitic magmatism**, **maar-diatreme architecture**, and the stratigraphic sealing provided by **Oceanic Anoxic Event 1b (OAE 1b)**. The structural framework is examined as a **tectonic collage** of **11 island-arc terranes**, where the **Loma Caribe peridotite** serves as an ophiolitic suture between the **Duarte Formation** basement and the **Maimón Formation**. We discuss the **hybrid epithermal-VMS system model** and the critical **112 Ma magmatic-thermal pulse** that characterizes the region's **mineral systems**. Finally, we address the **exploration gap** in **submarine tholeiitic sequences** and the role of **AI analysis** and **geochemical exploration** in identifying **blind VMS discoveries** like **Cerro de Maimón South** and potential **Cu-Mo porphyry roots**. This technical guide is designed for **structural geologists**, **ore prospectors**, and the **geological community** to understand the **crustal architecture** and **mineral potential** of the **Greater Antilles**.
The bridge between Academy and Industry!
P. Geo. Ricardo A Valls, M. Sc. and Geo Gadfly
Valls Geoconsultant
ORCID ID- https://orcid.org/0000-0002-5421-0914
Scopus Author ID: 7003369619/35335510700
ResearcherID: S-6604-2018
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