Browsing by Author "e9db0bf5-2c4f-4265-a68e-552981310e92"

Now showing items 1-20 of 42

    • A genetic link between magnetite mineralization and diorite intrusion at the El Romeral iron oxide-apatite ... 
      Rojas, Paula; Barra, Fernando; Reich Morales, Martín; Deditius, Artur; Simon, Adam; Uribe, Francisco; Romero, Rurik; Rojo, Mario (Springer Verlag, 2018)
      El Romeral is one of the largest iron oxide-apatite (IOA) deposits in the Coastal Cordillera of northern Chile. The Cerro Principal magnetite ore body at El Romeral comprises massive magnetite intergrown with actinolite, ...
    • A secondary precious and base metal mineralization in chromitites linked to the development of a Paleozoic ... 
      González Jiménez, José; Barra Pantoja, Fernando; Garrido, Leonardo; Reich Morales, Martín; Satsukawa, Takako; Romero, Rurik; Salazar, Eduardo; Colás, Vanessa; Orellana, Felipe; Rabbia, Osvaldo; Plissart, Gaëlle; Morata Céspedes, Diego (Elsevier, 2016)
      Platinum-group element (PGE) and gold inclusions are usually present in peridotites and chromitite deposits associated with ophiolites. Here, we present the first detailed study of the mineralogy of precious metals in ...
    • Assessing the role of bitumen in the formation of stratabound Cu-(Ag) deposits: Insights from the Lorena ... 
      Herazo, Andrea; Reich Morales, Martín; Barra Pantoja, Luis; Morata Céspedes, Diego; Real, Irene del; Pages, Anais (Elsevier, 2020)
      Stratabound Cu-(Ag) deposits located in north-central Chile have been grouped into two NS parallel belts according to the age of their volcanic and volcanoclastic host rocks. Deposits from the Cretaceous belt are characterized ...
    • Chlorine isotope fractionation recorded in atacamite during supergene copper oxidation 
      Reich Morales, Martín; Barnes, Jaime D.; Breecker, Daniel O.; Barra, Fernando; Milojevic, Catalina; Drew, Dana (Elsevier B.V., 2019)
      © 2019In the Atacama Desert of northern Chile, large amounts of the copper hydroxy-chloride mineral atacamite (Cu2Cl(OH)3) are formed in the supergene oxidation zone of Cu deposits. Since atacamite requires saline water ...
    • Colluvial deposits as a possible weathering reservoir in uplifting mountains 
      Carretier, Sebastien; Godderis, Yves; Martínez Concha, Francisco; Reich Morales, Martín; Martinod, Pierre (European Geosciences Union, 2018)
      The role of mountain uplift in the evolution of the global climate over geological times is controversial. At the heart of this debate is the capacity of rapid denudation to drive silicate weathering, which consumes CO2. ...
    • Constraints on the solid solubility of Hg, Tl, and Cd in arsenian pyrite 
      Deditius, Artur P.; Reich Morales, Martín (Mineralogical Society of America, 2016)
      Arsenic-rich (arsenian) pyrite can contain up to tens of thousands of parts per million (ppm) of toxic heavy metals such as Hg, Tl, and Cd, although few data are available on their solid solubility behavior. When a compilation ...
    • Copper-arsenic decoupling in an active geothermal system: a link between pyrite and fluid composition 
      Tardani, Daniele; Reich Morales, Martín; Deditius, Artur P.; Chryssoulis, Stephen; Sánchez Alfaro, Pablo; Wrage, Jackie; Roberts, Malcolm P. (Elsevier, 2017-05-01)
      Over the past few decades several studies have reported that pyrite hosts appreciable amounts of trace elements which commonly occur forming complex zoning patterns within a single mineral grain. These chemical zonations ...
    • Environmental controls on silica sinter formation revealed by radiocarbon dating 
      Slagter, Silvina; Reich Morales, Martín; Muñoz Sáez, Carolina; Southon, John; Morata Céspedes, Diego; Barra, Fernando; Gong, Jian; Skok, J. R. (Geological Society of America, 2019)
      Silica sinter deposits overlying geothermal fields are reliable records of environmental, geochemical, and biological changes through time. Therefore, determining the absolute ages of formation of these deposits is fundamental ...
    • Exploring the structural controls on helium, nitrogen and carbon isotope signatures in hydrothermal fluids ... 
      Tardani, Daniele; Reich Morales, Martín; Roulleau, Emilie; Takahata, Naoto; Sano, Yuji; Pérez Flores, Pamela; Sánchez Alfaro, Pablo; Cembrano, José; Arancibia, Gloria (Elsevier, 2016)
      There is a general agreement that fault-fracture meshes exert a primary control on fluid flow in both volcanic/magmatic and geothermal/hydrothermal systems. For example, in geothermal systems and epithermal gold deposits, ...
    • Formation of the Mantoverde iron oxide-copper-gold (IOCG) deposit, Chile: insights from Fe and O stable ... 
      Childress, Tristan M.; Simon, Adam C.; Reich Morales, Martín; Barra Pantoja, Fernando; Arce, Mauricio; Lundstrom, Craig C.; Bindeman, Ilya N. (Springer, 2020)
      The Mantoverde iron oxide-copper-gold (IOCG) deposit, Chile, contains hundreds of millions of tonnes (Mt) of mineable iron oxide and copper sulfide ore. While there is an agreement that mineralization at Mantoverde was ...
    • Geochemical and Isotopic Signature of Pyrite as a Proxy for Fluid Source and Evolution in the Candelaria-Punta ... 
      Real, I. del; Thompson, J. F. H.; Simon, A. C.; Reich Morales, Martín (Society of Economic Geologists (SEG), 2020)
      Pyrite is ubiquitous in the world-class iron oxide copper-gold (IOCG) deposits of the Candelaria-Punta del Cobre district, documented from early to late stages of mineralization and observed in deep and shallow levels of ...
    • Geochemical and micro-textural fingerprints of boiling in pyrite 
      Román, Nelson; Reich Morales, Martín; Leisen, Mathieu; Morata Céspedes, Diego; Barra, Fernando; Deditius, Artur P. (Elsevier Ltd, 2019)
      © 2018 Elsevier Ltd The chemical composition, textures and mineral associations of pyrite provide key information that help elucidate the evolution of hydrothermal systems. However, linking the compositional and micro-textural ...
    • Geochemistry of thermal waters in the Southern Volcanic Zone, Chile - implications for structural controls ... 
      Wrage, Jackie; Tardani, Daniele; Reich Morales, Martín; Daniele, Linda; Arancibia, Gloria; Cembrano, José; Sánchez Alfaro, Pablo; Morata Céspedes, Diego; Pérez Moreno, Rodrigo (Elsevier, 2017)
      Thermal waters in the Southern Volcanic Zone (SVZ) of Chile between 36 degrees-41 degrees S were studied using major and selected trace element relationships to characterize their geochemistry, formation mechanisms, and ...
    • Halogens, trace element concentrations, and Sr-Nd isotopes in apatite from iron oxide-apatite (IOA) deposits ... 
      Palma, Gisella; Barra, Fernando; Reich Morales, Martín; Valencia, Victor; Simon, Adam C.; Vervoort, Jeff; Leisen, Mathieu; Romero, Rurik (Elsevier Ltd, 2019)
      © 2018 Elsevier LtdThe ratio of the halogens F and Cl in apatite is highly sensitive to changes in the composition of an evolving silicate melt or aqueous fluid. For this reason apatite chemistry is widely used as a monitor ...
    • Highly siderophile elements mobility in the subcontinental lithospheric mantle beneath southern Patagonia 
      Tassara, Santiago; González Jiménez, José M.; Reich Morales, Martín; Saunders, Edward; Luguet, Ambre; Morata Céspedes, Diego; Grégoire, Michel; van Acken, David; Schilling, Manuel E.; Barra Pantoja, Luis; Nowell, Geoff; Corgne, Alexandre (Elsevier, 2018)
      Peridotite xenoliths collected from alkali basalts in the Argentinian Patagonia reveal the existence of an ancient depleted Paleoproterozoic mantle that records a subsequentmultistage metasomatic history.Metasomatismis ...
    • In-situ iron isotope analyses reveal igneous and magmatic-hydrothermal growth of magnetite at the Los ... 
      Knipping, Jaayke L.; Fiege, Adrián; Simon, Adam C.; Oeser, Martín; Reich Morales, Martín; Bilenker, Laura D. (De Gruyter, 2019)
      Iron-oxide apatite (IOA) deposits are mined for iron (Fe) and can also contain economically exploitable amounts of Cu, P, U, Ag, Co, and rare earth elements (REE). Recently, it has been proposed based on trace element ...
    • Iodine budget in surface waters from Atacama: Natural and anthropogenic iodine sources revealed by halogen ... 
      Álvarez, Fernanda; Reich Morales, Martín; Snyder, Glen; Pérez Fodich, Alida; Muramatsu, Yasuyuki; Daniele, Linda; Fehn, Udo (Elsevier, 2016)
      Iodine enrichment in the Atacama Desert of northern Chile is widespread and varies significantly between reservoirs, including nitrate-rich "caliche" soils, supergene Cu deposits and marine sedimentary rocks. Recent studies ...
    • Iodine-rich waters involved in supergene enrichment of the Mantos de la Luna argentiferous copper deposit, ... 
      Reich Morales, Martín; Palacios Monasterio, Carlos; Alvear Chahuán, Macarena Alejandra; Cameron, E. M.; Leybourne, M. I.; Deditius, A. (SPRINGER, 2009-08)
      Recent studies have suggested the involvement of highly saline deep formation waters that modified preexisting Cu assemblages to form atacamite during supergene oxidation of Cu deposits in the Atacama region. In this report, ...
    • Modelling sediment clasts transport during landscape evolution 
      Carretier, Sebastien; Martinod, Pierre; Reich Morales, Martín; Godderis, Yves (Copernicus Gesellschaft, 2016)
      Over thousands to millions of years, the landscape evolution is predicted by models based on fluxes of eroded, transported and deposited material. The laws describing these fluxes, corresponding to averages over many years, ...
    • More than ten million years of hyper-aridity recorded in the Atacama Gravels 
      Sun, Tao; Bao, Huiming; Reich Morales, Martín; Hemming, Sidney (Elsevier Ltd, 2018)
      The Atacama Desert’s hyper-aridity is closely linked to the development of world-class copper and nitrate/iodine ores and to regional tectonics and global paleoclimate changes in the Cenozoic era. The timing when the ...