A5024813355- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- Geomagnetism and Paleomagnetism Studies
- Geochemistry and Elemental Analysis
- Mineral Processing and Grinding
- Drilling and Well Engineering
- Mining and Gasification Technologies
- earthquake and tectonic studies
- Hydrocarbon exploration and reservoir analysis
- Geological and Tectonic Studies in Latin America
- Iron oxide chemistry and applications
Universidad Mayor
2024
University of Chile
2018-2024
University of Michigan
2022-2024
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...
Crustal magmatic systems that form volcanoes also produce mineral deposits are important sources of critical metals. These include porphyry, epithermal, skarn, iron-oxide-copper-gold, and Carlin-type by magmatic-hydrothermal processes, sulfide purely igneous pegmatite both processes. copper, gold, iron, lead, lithium, nickel, platinum-group-elements (platinum, palladium, rhodium, ruthenium, osmium, iridium), molybdenum, silver, selenium, tantalum, tellurium, tungsten, tin zinc. metals...
Abstract The textures of outcrop and near-surface exposures the massive magnetite orebodies (>90 vol % magnetite) at Plio-Pleistocene El Laco iron oxide-apatite (IOA) deposit in northern Chile are similar to basaltic lava flows have compositions that overlap high- low-temperature hydrothermal magnetite. Existing models—liquid immiscibility complete metasomatic replacement andesitic flows—attempt explain genesis by entirely igneous or processes. Importantly, those models were developed...
Abstract Magnetite is the main constituent of iron oxide–apatite (IOA) deposits, which are a globally important source Fe and other elements such as P REE, critical for modern technologies. Geochemical studies magnetite from IOA deposits have provided key insights into ore-forming processes mineralizing fluids. However, to date, only qualitative estimations been obtained one controlling physico-chemical parameters, i.e., temperature formation. Here we reconstruct thermal evolution Andean by...
Abstract The Plio-Pleistocene El Laco iron oxide-apatite (IOA) orebodies in northern Chile are some of the most enigmatic mineral deposits on Earth, interpreted to have formed as lava flows or by hydrothermal replacement, two radically different processes. Field observations provide support for both processes, but ultimately fail explain all observations. Previously proposed genetic models based and study outcrop samples include (1) magnetite crystallization from an erupting immiscible Fe-...
Abstract Iron oxide-apatite (IOA) deposits, also known as magnetite-apatite or Kiruna-type are a major source of iron and potentially rare earth elements phosphorus. To date, the youngest representative this group is Pleistocene (~2 Ma) El Laco deposit, located in Andean Cordillera northern Chile. considered unique type IOA deposit because its young age volcanic-like features. Here we report occurrence similarly IOA-type mineralization hosted within Laguna del Maule Volcanic Complex, an...
The El Laco iron oxide mineral deposit in the Central Andes of Chile has attracted significant attention because its uniquely preserved massive magnetite orebodies, which bear a remarkable similarity to volcanic products. To date, outcropping highly vesicular and porous orebodies have received little from microtextural point view, limiting our understanding about role volcanogenic processes on mineralization. Here, we report chemical composition at using EPMA LA-ICP-MS methods provide...
Abstract Magnetite is the main constituent of iron oxide–apatite (IOA) deposits, which are a globally important source Fe and other elements such as P REE, critical for modern technologies. Geochemical studies magnetite from IOA deposits have provided key insights into ore-forming processes mineralizing fluids. However, to date, only qualitative estimations been obtained one controlling physico-chemical parameters, i.e., temperature formation. Here we reconstruct thermal evolution Andean by...