A5070691750- Geological and Geochemical Analysis
- earthquake and tectonic studies
- Geochemistry and Geologic Mapping
- Power Transformer Diagnostics and Insulation
- Geochemistry and Elemental Analysis
- Geophysical and Geoelectrical Methods
- Geological and Tectonic Studies in Latin America
- Geomagnetism and Paleomagnetism Studies
- Seismic Waves and Analysis
- High-pressure geophysics and materials
- Minerals Flotation and Separation Techniques
- Advanced materials and composites
- Iron oxide chemistry and applications
- Seismic Imaging and Inversion Techniques
- Hydrocarbon exploration and reservoir analysis
- Metallurgical Processes and Thermodynamics
- Mineral Processing and Grinding
- Seismology and Earthquake Studies
University of Michigan
2018-2023
Abstract The genetic link between magmas and ore deposit formation is well documented by studies of fossil hydrothermal systems associated with magmatic intrusions at depth. However, the role explosive volcanic processes as active agents mineralization remains unexplored owing to fact that metals volatiles are released into atmosphere during eruption arc volcanoes. Here, we draw on observations uniquely preserved El Laco iron in Central Andes shed new light metallogenic volcanism operates a...
Abstract Iron oxide copper-gold (IOCG) and iron oxide-apatite (IOA) deposits are major sources of Fe, Cu, Au. Magnetite is the modally dominant commodity mineral in IOA deposits, whereas magnetite hematite predominant IOCG with copper sulfides being primary minerals. It generally accepted that formed by hydrothermal processes, but there a lack consensus for source ore fluid(s). There multiple competing hypotheses formation models range from purely magmatic to hydrothermal. In Chilean belt,...
Iron oxide-copper-gold (IOCG) deposits are a globally important source of copper, gold and critical commodities. Despite their relevance, IOCG remain an ill-defined clan, with range characteristics that has complicated development the general genetic model. Here we focus on Candelaria deposit in Chile reveal by using micro-textural compositional variations actinolite, common alteration mineral found many deposits, can constrain evolution these systems. We demonstrate formed superposition at...
Abstract Iron oxide-copper-gold deposits are a globally important source of copper, gold and critical commodities. However, they possess range characteristics related to variety tectono-magmatic settings that make development general genetic model challenging. Here we investigate micro-textural compositional variations in actinolite, constrain the thermal evolution Candelaria iron deposit Chile. We identify at least two mineralization stages comprising an early 675–800 °C oxide-apatite type...
Abstract Iron oxide copper-gold (IOCG) deposits are major sources of Cu, contain abundant Fe oxides, and may Au, Ag, Co, rare earth elements (REEs), U, other metals as economically important byproducts in some deposits. They form by hydrothermal processes, but the source ore fluid(s) is still debated. We investigated geochemistry magnetite from unit manto orebodies at Mina Justa IOCG deposit Peru to assess iron oxides their relationship with economic Cu mineralization. identified three types...
The authors have retracted this article because an error in the application of actinolite geothermometer, used to estimate formation temperature Candelaria iron oxide-copper-gold deposit, undermines our conclusion that can be as a geothermometer deposits.The is based on content coexisting with quartz, two pyroxenes and vapour; however, quartz are rare or absent deposit.This means cannot for estimation rocks question did not contain requisite equilibrium assemblage which had been...
Abstract Iron oxide–copper–gold (IOCG) and iron oxide–apatite (IOA) deposits are important sources of Cu Fe, respectively. They contain abundant Fe-oxides may Au, Ag, Co, rare earth elements (REEs), U, Ni, V as economically by-products. In Peru, the Mina Justa IOCG deposit is located next to giant Marcona IOA deposit. Constraining timing Fe mineralization at fundamental understanding duration type processes that generated this mineral deposit, ultimately testing genetic link with other in...
<p>Tables containing sample details and isotope ratios used to calculate the U-Pb Ar/Ar dates. Extra pictures, cross sections showing locations, age spectrum plots isochron diagrams of samples analyzed for geochronology.</p>
<p>Tables containing sample details and isotope ratios used to calculate the U-Pb Ar/Ar dates. Extra pictures, cross sections showing locations, age spectrum plots isochron diagrams of samples analyzed for geochronology.</p>