Rare Earth Element and Yttrium (REY) Hyper-Enriched Karst Bauxites of the Mercedes-Aceitillar Mining District, Sierra de Bahoruco, SW Dominican Republic Abstract Rare earth elements, including yttrium (REYs), are the most sought-after among the so-called critical or strategic elements for the low-carbon energy industry. In the past decade, karst bauxite deposits have been targeted as potential…
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2025: Mineralogy, geochemistry and origin of karst bauxite deposits from the Reserva Fiscal Ávila, SW Dominican Republic: Mineralogy and geochemistry of the RFA karst bauxites
Mineralogy, geochemistry and origin of karst bauxite deposits from the Reserva Fiscal Ávila, SW Dominican Republic: Mineralogy and geochemistry of the RFA karst bauxites Abstract The energy transition, which aims to reduce carbon emissions and to slow down climate change, demands an ever-increasing supply of the so-called “critical metals”. Rare-earth Elements and Yttrium (REY) are…
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2025: The gradual shift from forearc basalt-like to boninite-like magmatism during intra-oceanic subduction-initiation recorded by ophiolitic chromite deposits from Cuba
The gradual shift from forearc basalt-like to boninite-like magmatism during intra-oceanic subduction-initiation recorded by ophiolitic chromite deposits from Cuba Abstract Cuba contains the largest number of ophiolitic chromite deposits throughout the Americas. Most of these deposits are found within the mantle section of the Eastern Cuba and Camagüey ophiolitic massifs, which contain four different chromite…
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2024: Accurate electron probe microanalysis of key petrogenetic minor and trace elements in Cr-spinel
Accurate electron probe microanalysis of key petrogenetic minor and trace elements in Cr-spinel Abstract The trace element composition of Cr-spinel is paramount for interpreting the petrogenesis of a large group of mafic to ultramafic rocks. Although laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) has proven to be very useful for the determination of trace…
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2024: The Geology, Geochemistry, and Mineralogy of the Moa Bay Ni Laterite Mining District, Cuba
The Geology, Geochemistry, and Mineralogy of the Moa Bay Ni Laterite Mining District, Cuba Abstract The Moa Bay lateritic Ni-Co mining district (eastern Cuba) has total mineral resources of 198.54 million metric tonnes (Mt) at 1.07% Ni and 0.12% Co. Laterite profiles from this district are characterized by their oxide-dominated ore zones. Laterite profiles from…
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2023: Subduction, accretion, and collision in Latin America, the Caribbean, and Iberia: a tribute to the career of Antonio García-Casco
To Cite this article: Blanco-Quintero, I. F., Rojas-Agramonte, Y., & Proenza, J. A. (2024). Subduction, accretion, and collision in Latin America, the Caribbean, and Iberia: a tribute to the career of Antonio García-Casco. International Geology Review, 66(1), 1-5. DOI: 10.1038/s41598-023-35066-y
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2023: Geochemistry and Mineralogy of the Clay-Type Ni-Laterite Deposit of San Felipe (Camagüey, Cuba)
Geochemistry and Mineralogy of the Clay-Type Ni-Laterite Deposit of San Felipe (Camagüey, Cuba) Abstract The Ni-laterite deposit at the San Felipe plateau, located 30 km northwest of Camagüey, in central Cuba, is the best example of a clay-type deposit in the Caribbean region. San Felipe resulted from the weathering of mantle peridotites of the Cretaceous…
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2023: Mantle-hosted ophiolitic chromitites from Colombia: implications for petrogenesis and geodynamic evolution
Mantle-hosted ophiolitic chromitites from Colombia: implications for petrogenesis and geodynamic evolution Abstract Chromitite bodies can be found within ophiolitic mantle sections in three locations in Colombia: Medellín, Planeta Rica, and La Guajira. These chromitites are typically massive pods that are often surrounded by lateritic soil in Medellín and Planeta Rica, or small discoidal bodies in…
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Noticia: Descrita la fusión de nanopartículas de oro en los fluidos que transportan este metal en la corteza terrestre
Descrita la fusión de nanopartículas de oro en los fluidos que transportan este metal en la corteza terrestre A partir del artículo: Domínguez-Carretero, D., González-Jiménez, J.M., Proenza, J.A. et al. A track record of Au–Ag nanomelt generation during fluid-mineral interactions. Sci Rep 13, 7895 (2023). https://doi.org/10.1038/s41598-023-35066-y https://web.ub.edu/es/web/actualitat/w/descrita-la-fusi%C3%B3n-de-nanopart%C3%ADculas-oro-en-los-fluidos-que-transportan-este-metal-en-la-corteza-terrestre
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2023: A track record of Au–Ag nanomelt generation during fluid-mineral interactions
A track record of Au–Ag nanomelt generation during fluid-mineral interactions Abstract Recent studies have reported the significant role of Au-bearing nanoparticles in the formation of hydrothermal gold deposits. Despite the ever-increasing understanding of the genesis and stability of Au-bearing nanoparticles, it is still unknown how they behave when exposed to hydrothermal fluids. Here, we study…
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2023: REE ultra-rich karst bauxite deposits in the Pedernales Peninsula, Dominican Republic: Mineralogy of REE phosphates and carbonates
REE ultra-rich karst bauxite deposits in the Pedernales Peninsula, Dominican Republic: Mineralogy of REE phosphates and carbonates Abstract Karst bauxites have recently received renewed attention for their potential as non-conventional REE sources. Karst bauxites from the Pedernales Peninsula in the Dominican Republic stand among the world’s richest in REE. Bauxite ore from two deposits from…
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2023: Relict abyssal mantle in a Caribbean forearc ophiolite (Villa Clara, central Cuba): petrogenetic and geodynamic implications
Relict abyssal mantle in a Caribbean forearc ophiolite (Villa Clara, central Cuba): petrogenetic and geodynamic implications Abstract The ophiolitic Villa Clara serpentinite-matrix mélange, central Cuba, forms part of the large ophiolitic belt of the Greater Antilles. The composition of ultramafic and mafic rocks allows classifying them into two main groups, revealing a complex multi-stage formation…
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2023: Turonian-coniacian definition of the Caribbean plate: tectonic and metamorphic record in the Median Belt, Dominican Republic
Turonian-coniacian definition of the Caribbean plate: tectonic and metamorphic record in the Median Belt, Dominican Republic Abstract Uplift and unroofing of Jurassic-Cretaceous, mantle and crust, arc- and plume-related rock units in the Median Belt of the Dominican Republic exposed basement rocks with a protracted record of tectono-thermal events delineating the evolution of the northern edge…
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2023: Fluid flow in the subduction channel: Tremolite veins and associated blackwalls in antigoritite (Villa Clara serpentinite mélange, Cuba)
Fluid flow in the subduction channel: Tremolite veins and associated blackwalls in antigoritite (Villa Clara serpentinite mélange, Cuba) Abstract Exotic blocks of massive antigorite-serpentinite (antigoritite) document a deep-seated subduction channel in the Villa Clara serpentinite-matrix mélange, central Cuba. The petrological and geochemical characteristics of antigoritite allow distinguishing two types of rock: i) antigoritite and ii)…
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2022: Ultramafic-hosted volcanogenic massive sulfide deposits from Cuban ophiolites
Ultramafic-hosted volcanogenic massive sulfide deposits from Cuban ophiolites Abstract Ultramafic-hosted volcanogenic massive sulfide deposits (UM-VMS) located in the Havana-Matanzas ophiolite (Cuba) are the only known example of this type of mineralization in the Caribbean realm. UM-VMS from Havana-Matanzas are enriched in Cu, Ni, Co, Au, and Ag. The mineralization consists of massive sulfide bodies mostly…
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2022: Dissolution kinetics of garnierites from the Falcondo Ni-Laterite deposit (Dominican Republic) under acidic conditions
Dissolution kinetics of garnierites from the Falcondo Ni-Laterite deposit (Dominican Republic) under acidic conditions Abstract In this study we tested the dissolution kinetics of three garnierite types (serpentine-, talc- and sepiolite-dominated) at pH of 3 and 5 and room temperature by means of flow-through experiments. The samples selected for the study cover a wide range…
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2022: Co–Mn Mineralisations in the Ni Laterite Deposits of Loma Caribe (Dominican Republic) and Loma de Hierro (Venezuela)
Co–Mn Mineralisations in the Ni Laterite Deposits of Loma Caribe (Dominican Republic) and Loma de Hierro (Venezuela) Abstract Cobalt demand is increasing due to its key role in the transition to clean energies. Although the main Co ores are the sediment-hosted stratiform copper deposits of the Democratic Republic of the Congo, Co is also a…
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2021: A Late Cretaceous Adakitic intrusion from Northern Haiti: additional evidence for slab melting and implications for migration of ridge-trench-trench triple junction during the Cretaceous in the Greater Antilles
A Late Cretaceous Adakitic intrusion from Northern Haiti: additional evidence for slab melting and implications for migration of ridge-trench-trench triple junction during the Cretaceous in the Greater Antilles Abstract We present a new U-Pb zircon age and geochemical data from an intermediate calc-alkaline pluton with adakitic affinity from NW Hispaniola (Haiti). The data provide important…
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2021: Low-temperature hydrothermal Pt mineralization in uvarovite-bearing ophiolitic chromitites from the Dominican Republic
Low-temperature hydrothermal Pt mineralization in uvarovite-bearing ophiolitic chromitites from the Dominican Republic Abstract Platinum-group elements (PGEs) occur in ophiolitic chromitite in the Dominican Republic as platinum-group minerals (PGMs) in spatial association with hydrothermal uvarovite and chromian clinochlore. Bulk-rock total PGE content in a single analyzed chromitite sample is of 6.54 g/t. Three main PGM types…
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Special issue: Mineral deposits in Latin America and the Caribbean (Boletín de la Sociedad Geológica Mexicana)
Mineral deposits in Latin America and the Caribbean The special issue from Boletín de la Sociedad Geológica Mexicana is already published (Volume 72 Number 3; 2020). The volume was handled by Joaquín A. Proenza, Lisard Torró and Carl E. Nelson as guest editors. Editing of this special issue meant an exceptional effort by the scientific…
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