Bismuth‐melt trails trapped in cassiterite–quartz veins |
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| Authors: | Frederico Sousa Guimares Alexandre Raphael Cabral Bernd Lehmann Francisco Javier Rios Moiss Augusto Bacellar vila Marco Paulo de Castro Glucia Nascimento Queiroga |
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| Institution: | Frederico Sousa Guimarães,Alexandre Raphael Cabral,Bernd Lehmann,Francisco Javier Rios,Moisés Augusto Bacellar Ávila,Marco Paulo de Castro,Gláucia Nascimento Queiroga |
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| Abstract: | Native bismuth in the form of metallic melt has been considered instrumental to the formation of some metallic ore deposits via a mechanism dubbed the “Liquid Bismuth Collector Model.” Here, we provide petrographical documentation of trail‐forming, μm‐sized blebs of native bismuth in cassiterite–quartz veins from the Santa Bárbara greisen Sn deposit in the Rondônia tin province of northern Brazil. These inclusions suggest the trapping of a Bi melt that took place during vein formation, in a mechanism similar to the entrapment of fluid inclusions. |
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