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Arqueros, Algodones and Roda&#237;to are silver districts from northern Chile that were of major economic importance during the XIX century. Since the deposits were extensively mined during the last century, at present, the main mineralogical record is kept at the &#194;&#171;Colecci&#243;n Ignacio Domeyko&#194;&#187;, a major collection belonging to the Mineralogical Museum of La Serena (Chile). The study of the collection together with a revision of the local geology of the districts led to the following conclusions: 1) the districts are formed by Comstock/Creede-type epithermal silver-base metals deposits, which are hosted by volcanic and sedimentary rocks of Cretaceous age: 2) the studied parageneses can be ascribed to the Cu-Pb-Zn-Ag association (e.g. Creede, Colorado, USA; Zacatecas, Mexico); 3) the presence of skutterudite and erythrite suggests, however, a transitional character towards other mineralogical associations: Ag-Bi-Co-Ni-As (e.g. Cobalt, Ontario, Canada) and Pb-Zn-Ag (Sb-As) (Coeur d'Alene, Idaho, USA).  Arqueros, Algodones y Roda&#237;to son tres distritos argent&#237;feros del norte de Chile que tuvieron gran importancia econ&#243;mica en el siglo XIX. Dado que fueron intensamente explotados en el siglo pasado, en la actualidad el principal testimonio mineral&#243;gico lo constituye la Colecci&#243;n Mineral&#243;gica Ignacio Domeyko del Museo Mineral&#243;gico de La Serena (Chile). El estudio de esta colecci&#243;n, junto con la revisi&#243;n de la geolog&#237;a distrital de estos yacimientos, permite establecer las siguientes conclusiones: 1) los tres distritos son mineralizaciones filonianas epitermales encajadas en rocas volc&#225;nicas y sedimentarias del Cret&#225;cico, y son asignables a los modelos de yacimientos argent&#237;feros tipo &#194;&#171;Comstock&#194;&#187; o &#194;&#171;Creede&#194;&#187;; 2) las parag&#233;nesis estudiadas pueden asimilarse a la asociaci&#243;n Cu-Pb-Zn-Ag (e.g. Creede, Colorado, USA; Zacatecas, M&#233;xico); 3) la existencia de skutterudita y eritrina sugiere, sin embargo, un cierto car&#225;cter transicional respecto a otras asociaciones: Ag-Bi-Co-Ni-As (e.g. Cobalt, Ontario, Canad&#225;) y Pb-Zn-Ag (Sb-As) (Coeur d'Alene, Idaho, USA: Freiberg, Alemania)

estudios geológicos

El valor científico de una colección mineralógica en la reconstitución de tres antiguos distritos argentíferos: Arqueros, Algodones y Rodaito (Norte de Chile)