@misc{10481/108368,
year = {2025},
month = {3},
url = {https://hdl.handle.net/10481/108368},
abstract = {The transport of noble metals (Au, Ag) by metal-rich melts in hydrothermal ore
systems is now acknowledged as a complementary mechanism to complexing
ligands in solution. However, it is unclear where/when both mechanisms
coexist and whether metal-rich melts can be physically transported by
hydrothermal fluids. Here we show evidence for a suspension-like transport of
nano-to-micron-sized metal-rich sulfide-sulfosalt melts within epithermal
fluids at <400 °C, forming irregular and bleb-like polymineral inclusions of AgAu-Cu-Pb(-Fe-Zn)-As-Sb-S-Se upon cooling. These polymineral inclusions, 5 nm
to 40 µm in size, are cogenetic with fluid inclusions in quartz. Numerical
modeling based on particle fluidization and settling theory shows hydrothermal fluids can mechanically transport metal-rich sulfide-sulfosalt nanomicromelts at fluid flow rates <10–1 m/s. The chemical similarity between nanoand micron-scale polymineral inclusions suggests the coalescence of nanomelt
precursors during transient transport from their source(s) to deposition sites,
playing a key role in noble metal mineralization.},
organization = {MCIN/AEI/10.13039/50110001133 and “ERDF" (PID2022-138768OB-I00)},
organization = {PAPIIT-DGAPA-UNAM (grant IN102123)},
organization = {CONAHCyT - Posgrado en Ciencias de La
Tierra-UNAM - Geological Society of America (grant 14012-24)},
publisher = {Springer Nature},
title = {Transient non-soluble noble metal transport in hydrothermal ore systems},
doi = {10.1038/s41467-025-57740-7},
author = {Cano, Néstor and González Jiménez, José María and Camprubí, Antoni and Morales-Casique, Eric and González-Partida, Eduardo},
}