scholarly journals Iron-oxide and alkali-calcic alteration, skarn, and epithermal mineralizing systems of the Grenville Province: the Bondy gneiss complex in the Central Metasedimentary Belt of Quebec as a case example - a field trip to the 14th Society for Geology Applied to Mineral Deposits (SGA) biennial meeting

2018 ◽  
Author(s):  
L Corriveau ◽  
O Blein ◽  
F Gervais ◽  
P H Trapy ◽  
S De Souza ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Field Trip ◽  
Mineral Deposits ◽  
Grenville Province ◽  
Gneiss Complex

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.

scholarly journals Geochronology of Mexican mineral deposits. VII: the Peña Colorada magmatic-hydrothermal iron oxide deposits (IOCG ‘clan’), Colima

2018 ◽  
Vol 70 (3) ◽  
pp. 633-674 ◽  
Author(s):  
Antoni Camprubí ◽  
Elena Centeno-García ◽  
Gustavo Tolson ◽  
Alexander Iriondo ◽  
Berlaine Ortega ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Mineral Deposits

Iron oxide - copper - gold-type and related deposits in the Manitou Lake area, eastern Grenville Province, Quebec: variations in setting, composition, and style

2005 ◽  
Vol 42 (10) ◽  
pp. 1829-1847 ◽  
Author(s):  
T Clark ◽  
A Gobeil ◽  
J David
Keyword(s):  
Iron Oxide ◽  
Meteoric Water ◽  
Active Faults ◽  
Rare Metal ◽  
Lake Area ◽  
Rare Metals ◽  
Grenville Province ◽  
Copper Gold ◽  
Radioactive Minerals ◽  
Metasomatic Replacement

The Manitou Lake area (Kwyjibo and Lac Marmont sectors), located in Quebec's eastern Grenville Province, contains magnetite-rich deposits with variable morphological, mineralogical, and chemical characteristics. Most Kwyjibo sector deposits are rich in Cu, rare-earth elements (REE), Y, P, F, and Ag and are anomalous in Th, U, Mo, W, Zr, and Au, and Lac Marmont sector deposits are commonly poor in these elements. Deposits occur in or are closely associated with 1175–1168 Ma leucogranite. They contain combinations of magnetite, clinopyroxene, blue–green hornblende, titanite, apatite, fluorite, quartz, biotite, andradite, epidote, albite, hematite, sulfides (chalcopyrite, pyrite, pyrrhotite, molybdenite, sphalerite), ilmenite, allanite, and other REE-bearing minerals. Veins and breccias are common. Most of the magnetite mineralization was preceded by potassic metasomatism (microcline) and was followed by most of the sulfides and radioactive minerals. Nearby sulfide-dominant deposits may be related. The deposits were formed by metasomatic replacement and fracture filling from hydrothermal fluids of variable composition, which were probably channeled in major, active faults. Oxygen-isotope data from magnetite-rich rocks suggest that fluids were predominantly magmatic and (or) metamorphic and that, locally, mixing with cooler meteoric water may have facilitated precipitation of sulfides and rare-metal minerals. Titanites in mineralized rock have been dated at 972 ± 5 Ma, but most magnetite may be older. Mineralization was syn- to post-tectonic and occurred in an orogenic to orogenic-collapse setting. The Cu–REE–Y-rich deposits are similar to iron oxide – copper – gold (IOCG) Olympic Dam type deposits, and copper- and rare-metals-poor occurrences resemble magnetite ± apatite Kiruna-type deposits.

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