scholarly journals Mineral deposits of Latin America and the Caribbean. Preface

2020 ◽  
Vol 72 (3) ◽  
pp. A250820
Author(s):  
Joaquín A. Proenza ◽  
Lisard Torró ◽  
Carl E. Nelson
Keyword(s):  
Latin America ◽  
Iron Oxide ◽  
Dominican Republic ◽  
Iron Ore ◽  
Mineral Exploration ◽  
Mineral Deposits ◽  
Special Issue ◽  
Gold Silver ◽  
Copper Gold ◽  
The Caribbean

The region that encompasses Latin America and the Caribbean is a preferential destination for mining and mineral exploration, according to the Mineral Commodity Summaries 2020 of the US Geological Survey (https://www.usgs.gov/centers/nmic/). The region contains important resources of copper, gold, silver, nickel, cobalt, iron, niobium, aluminum, zinc, lead, tin, lithium, chromium, and other metals. For example, Chile is the world’s largest copper producer and the second largest lithium producer. Brazil is the world’s leading niobium producer, the second largest producer of iron ore, and the third-ranked producer of tantalum. Cuba contains some of the largest reserves of nickel and cobalt in the world, associated with lateritic Ni-Co deposits. Mexico is traditionally the largest silver producer and contains the two largest mines in this commodity and, along with Peru, Chile, Bolivia and Argentina, accounts for more than half of the total amount of global silver production. The region also hosts several world-class gold mines (e.g., Pueblo Viejo in the Dominican Republic, Paracotu in Brazil, Veladero in Argentina, and Yanacocha in Peru). Also, Bolivia and Brazil are among the world’s leading producers of tin. The region hosts a variety of deposit types, among which the most outstanding are porphyry copper and epithermal precious metal, bauxite and lateritic nickel, lateritic iron ore from banded iron-formation, iron-oxide-copper-gold (IOCG), sulfide skarn, volcanogenic massive sulfide (VMS), Mississippi Valley type (MVT), primary and weathering-related Nb-bearing minerals associated with alkaline–carbonatite complexes, tin–antimony polymetallic veins, and ophiolitic chromite. This special issue on Mineral Deposits of Latin America and the Caribbean in the Boletín de la Sociedad Geológica Mexicana contains nineteen papers. Contributions describe mineral deposits from Mexico, Panama, Cuba, Dominican Republic, Colombia, Venezuela, Ecuador, Chile, and Argentina. This volume of papers covers four mineral systems (mafic-ultramafic orthomagmatic mineral systems, porphyry-skarn-epithermal mineral systems, iron oxide copper-gold mineral systems, and surficial mineral systems). This special issue also includes papers on industrial minerals, techniques for ore discovery (predictive modelling of mineral exploration using GIS), regional metallogeny and mining history.

Mineral deposits of Latin America and the Caribbean. Preface

2020 ◽  
Vol 72 (3) ◽  
pp. P250820
Author(s):  
Joaquín A. Proenza ◽  
Lisard Torró ◽  
Carl E. Nelson
Keyword(s):  
Latin America ◽  
Iron Oxide ◽  
Dominican Republic ◽  
Iron Ore ◽  
Mineral Exploration ◽  
Mineral Deposits ◽  
Special Issue ◽  
Gold Silver ◽  
Copper Gold ◽  
The Caribbean

The region that encompasses Latin America and the Caribbean is a preferential destination for mining and mineral exploration, according to the Mineral Commodity Summaries 2020 of the US Geological Survey (https://www.usgs.gov/centers/nmic/). The region contains important resources of copper, gold, silver, nickel, cobalt, iron, niobium, aluminum, zinc, lead, tin, lithium, chromium, and other metals. For example, Chile is the world’s largest copper producer and the second largest lithium producer. Brazil is the world’s leading niobium producer, the second largest producer of iron ore, and the third-ranked producer of tantalum. Cuba contains some of the largest reserves of nickel and cobalt in the world, associated with lateritic Ni-Co deposits. Mexico is traditionally the largest silver producer and contains the two largest mines in this commodity and, along with Peru, Chile, Bolivia and Argentina, accounts for more than half of the total amount of global silver production. The region also hosts several world-class gold mines (e.g., Pueblo Viejo in the Dominican Republic, Paracotu in Brazil, Veladero in Argentina, and Yanacocha in Peru). Also, Bolivia and Brazil are among the world’s leading producers of tin. The region hosts a variety of deposit types, among which the most outstanding are porphyry copper and epithermal precious metal, bauxite and lateritic nickel, lateritic iron ore from banded iron-formation, iron-oxide-copper-gold (IOCG), sulfide skarn, volcanogenic massive sulfide (VMS), Mississippi Valley type (MVT), primary and weathering-related Nb-bearing minerals associated with alkaline–carbonatite complexes, tin–antimony polymetallic veins, and ophiolitic chromite. This special issue on Mineral Deposits of Latin America and the Caribbean in the Boletín de la Sociedad Geológica Mexicana contains nineteen papers. Contributions describe mineral deposits from Mexico, Panama, Cuba, Dominican Republic, Colombia, Venezuela, Ecuador, Chile, and Argentina. This volume of papers covers four mineral systems (mafic-ultramafic orthomagmatic mineral systems, porphyry-skarn-epithermal mineral systems, iron oxide copper-gold mineral systems, and surficial mineral systems). This special issue also includes papers on industrial minerals, techniques for ore discovery (predictive modelling of mineral exploration using GIS), regional metallogeny and mining history.

Commemorating EMDR’s 25th Anniversary byHighlighting EMDR Humanitarian Projects

2014 ◽  
Vol 8 (4) ◽  
pp. 179-180 ◽  
Author(s):  
Louise Maxfield
Keyword(s):  
Latin America ◽  
Refugee Camp ◽  
Individual Treatment ◽  
Special Issue ◽  
25Th Anniversary ◽  
Clinical Vignettes ◽  
Humanitarian Crises ◽  
The World ◽  
The Caribbean ◽  
Emdr Therapy

This editorial introduces the special issue of the Journal of EMDR Practice and Research that commemorates the 25th anniversary of eye movement desensitization and reprocessing (EMDR) therapy by highlighting EMDR humanitarian programs around the world—in North America, Europe, Africa, the Middle East, Asia, Latin America, and the Caribbean. EMDR therapy is a valuable and appropriate intervention in humanitarian crises, given its effectiveness as a brief individual treatment, consecutive-day application, and group therapy. There are many compelling clinical vignettes in this issue, including some from a refugee camp in Syria, a hurricane in South America, and earthquakes in India and Italy. The authors in this issue bring years of experience to their articles, and their commentary on the challenges, future needs, and concerns is illuminating and thought-provoking.

scholarly journals P749 Epidemiological and clinical characterisation of inflammatory bowel disease (IBD) in Latin America and the Caribbean: The EPI-LATAM IBD study from the Pan American Crohn’s colitis organisation

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S599-S600 ◽  
Author(s):  
J K Yamamoto-Furusho ◽  
N N Parra-Holguín ◽  
E Grupo-Colombiano ◽  
F Bosques-Padilla ◽  
G Veitia-Velásquez ◽  
...  
Keyword(s):  
Puerto Rico ◽  
Latin America ◽  
Dominican Republic ◽  
Latin American ◽  
Steroid Resistance ◽  
Extraintestinal Manifestations ◽  
Inflammatory Bowel ◽  
The Caribbean ◽  
Epidemiological Characteristics ◽  
Latin American And Caribbean

Abstract Background Inflammatory bowel disease (IBD) is currently recognised as a global health problem, since its incidence and prevalence have increased significantly worldwide in recent years. Studies in Latin America are only limited to reporting incidence and prevalence, so our main objective is to report the clinical and epidemiological characteristics of IBD in Latin American and Caribbean countries. Methods This is a multicentre cohort study in which 8 Latin American and Caribbean countries were included: Colombia, Cuba, Mexico, Peru, Puerto Rico, Dominican Republic, Uruguay and Venezuela during the period from August 2017 to October 2019. Two study groups were conducted by geographic region due to their ethnicity, Group 1) Caribbean: Cuba, Puerto Rico and Dominican Republic, Group 2) Latin America: Colombia, Mexico, Venezuela and Peru. Statistical analysis was performed with the statistical programme SPSS v.24. A value of p <0.05 was taken as significant. Results This study included a total of 4216 IBD patients from 8 countries. The CD was more frequent than UC in the following countries: Puerto Rico with 68.5%, Dominican Republic 56.3% and Peru with 53.1%, while in the rest of the countries the frequency of UC predominated, in Colombia by 79.2%, Venezuela in 78.4%, Cuba in 69.9% and Mexico in 75.8%. The Caribbean countries had a significantly higher frequency in the fistulising phenotype in CD with 65.1% (p = 0.0001), steroid dependence in 11.51% (pp = 0.002), steroid resistance in 28.5% (pp = 0.0001), thiopurine intolerance in 1.40% (p = 0.0002), extraintestinal manifestations in 55.91% (p = 0.0001), IBD surgeries in 32.10% (p = 0.0001) and family history of IBD reported a frequency of 15.60% (p = 0.0001). For Latin America, the frequency of pancolitis was more frequent in 48.21% (p = 0001) in patients with UC. The factors associated with the use of biological therapy were: fistulising phenotype in CD, steroid resistance, thiopurine intolerance, presence of extraintestinal manifestations and IBD-related surgeries. There is an increased frequency in the diagnosis of IBD in the last two decades (2000–2019), being 7.5 times for UC and 12.5 times for CD as show in Figure 1. Conclusion This is the first large and multicentre study in Latin America and the Caribbean which showed significant increase in the diagnosis of IBD in the last two decades as well as the differences in clinical and epidemiological characteristics between both regions.

Latin America and the Caribbean 2050: Becoming a Global Low-Carbon Metals and Solutions Hub

2021 ◽  
Author(s):  
Christian Spano ◽  
Paolo Natali ◽  
Charles Cannon ◽  
Suzanne Greene ◽  
Osvaldo Urzúa ◽  
...  
Keyword(s):  
Latin America ◽  
Value Chain ◽  
Iron Ore ◽  
Business Models ◽  
Carbon Intensity ◽  
Cost Curve ◽  
Low Carbon ◽  
Enabling Factors ◽  
New Business ◽  
The Caribbean

This report evaluates scope 3 emissions along the copper and iron ore value chains and the opportunities that Latin America and the Caribbean (LAC) has to become a low carbon metals and solutions hub. The report presents four carbon emission scenarios that represent different sets of decisions for policy-makers and investors. Two scenarios fall short of aligning with Paris targets: (1) the business as usual (BaU) scenario with no further abatement action; and (2) a BaU scenario with the current level of emission reduction potential from players in the value chain (BaU Possible). The other two scenarios deliver the required carbon reductions to be compliant with the Paris Agreement by 2060, but through different strategies: (3) the BaU Paris scenario. where alignment with Paris targets is achieved by keeping BaU volumes and reducing carbon intensity per tonne of metal; and (4) the Decoupled scenario, where carbon intensity reductions are relaxed and compensated by a reduction in primary supply to align the value chain emissions to a Paris trajectory. All scenarios require LACs leaders to consider investments in low-carbon technology in different degrees. The report argues that, given its competitive position in the cost curve for copper and iron ore and an abundance of enabling factors for low carbon strategies, the region could become a key source of low carbon metals and solutions as long as it is proactive in adopting all the necessary measures from public sector and industry perspectives. Finally, the report concludes that myriad opportunities exist for LAC, including new business models, technologies and products, and that these could yield a greater economic and social contribution to the region than the BaU trajectories.

scholarly journals Prospectivity analysis of gold and iron oxide copper-gold-(silver) mineralizations from the Faina Greenstone Belt, Brazil, using multiple data sets

2017 ◽  
Vol 47 (4) ◽  
pp. 561-590
Author(s):  
Daniela Schievano de Campos ◽  
Adalene Moreira Silva ◽  
Catarina Laboure Bemfica Toledo ◽  
Marcelo Juliano de Carvalho ◽  
Vinícius Gomes Rodrigues ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Greenstone Belt ◽  
Gold Deposits ◽  
Data Sets ◽  
Multiple Data ◽  
Gold Silver ◽  
Target Sites ◽  
Copper Gold ◽  
Multiple Data Sets ◽  
Fuzzy Logic Technique

ABSTRACT: The Faina Greenstone Belt is located in the southern sector of the Goiás Archean Block and has been investigated since the 18th century because of its gold deposits. Recent studies have revealed the polymetallic potential of the belt, which is indicated by anomalous levels of Ag, Cu, Fe and Co in addition to Mn, Ba, Li, Ni, Cr and Zn. This study was developed based on a detailed analysis of two selected target sites, Cascavel and Tinteiro, and multiple data sets, such as airborne geophysics, geochemistry and geological information. These datasets were used to create a final prospectivity map using the fuzzy logic technique. The gold mineralization of Cascavel target is inserted in an orogenic system and occurs in two overlapping quartz veins systems, called Mestre-Cascavel and Cuca, embedded in quartzite with an average thickness 50 cm and guidance N45º-60ºW/25ºSW with free coarse gold in grains 2-3 mm to 3 cm. The prospectivity map created for this prospect generated four first-order favorable areas for mineralization and new medium-favorability foci. The Tinteiro area, derived from studies conducted by Orinoco do Brasil Mineração Ltda., shows polymetallic mineralization associated with an iron oxide-copper-gold ore deposit (IOCG) system posterior to Cascavel target mineralization. Its prospectivity map generated 19 new target sites with the potential for Au, Cu and Ag mineralization, suggesting new directions for future prospecting programs.

Sport in Latin America

2017 ◽  
Author(s):  
Brenda Elsey
Keyword(s):  
Latin America ◽  
Civil Rights ◽  
Dominican Republic ◽  
Latin American ◽  
Racial Diversity ◽  
South American ◽  
Local Conditions ◽  
The Caribbean ◽  
Racial Hierarchies ◽  
Generally True

Sport forms existed in Latin American in the pre-Columbian period. European empires adopted and modified indigenous cultural activities while introducing new sports. Sport development was not homogenous as local conditions and specific colonial and commercial interests shaped sport’s growth. Despite these disparate patterns of development, it is generally true that the rise in nationalism facilitated the diffusion of sport in Latin America, as local associations formed in response to invitations sent by sportsmen from abroad-seeking competitors. Football enjoyed the most expansive growth in South American, while baseball grew in the Caribbean in Cuba and the Dominican Republic. Women’s access to sport has been a persistent issue in Latin America. The racial diversity of the region also has created an ongoing negotiation of racial hierarchies in sport. Sport in Latin American serves as an arena where participants perform citizenship and create understandings of civil rights.

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