Bismuth‐melt trails trapped in cassiterite–quartz veins.
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2019
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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 mecha‐
nism similar to the entrapment of fluid inclusions.
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GUIMARÃES, F. S. et al. Bismuth‐melt trails trapped in cassiterite–quartz veins. Terra Nova, v. 31, n. 4, p. 358-365, ago. 2019. Disponível em: <https://onlinelibrary.wiley.com/doi/full/10.1111/ter.12391>. Acesso em: 10 mar. 2020.