CO2-fluxing collapses metal mobility in magmatic vapour
Abstract
Magmatic systems host many types of ore deposits, including world-class deposits of copper and gold. Magmas are commonly an important source of metals and ore-forming fluids in these systems. In many magmatic-hydrothermal systems, low-density aqueous fluids, or vapours, are significant metal carriers. Such vapours are water-dominated shallowly, but fluxing of CO2-rich vapour exsolved from deeper magma is now recognised as ubiquitous during open-system magma degassing. Furthermore, we show that such CO2-fluxing leads to a sharp drop in element solubility, up to a factor of 10,000 for Cu, and thereby provides a highly efficient, but as yet unrecognised mechanism for metal deposition.
- Authors:
-
- McGill Univ., Montreal, QC (Canada)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1255257
- Report Number(s):
- LA-UR-15-28200
Journal ID: ISSN 2410-339X
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Geochemical Perspectives Letters
- Additional Journal Information:
- Journal Volume: 824; Journal Issue: C; Journal ID: ISSN 2410-339X
- Publisher:
- European Association of Geochemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 58 GEOSCIENCES; vapor transport of metals; magmatic plumes; gas pulses; ore deposits
Citation Formats
van Hinsberg, V. J., Berlo, K., Migdisov, A. A., and Williams-Jones, A. E. CO2-fluxing collapses metal mobility in magmatic vapour. United States: N. p., 2016.
Web. doi:10.7185/geochemlet.1617.
van Hinsberg, V. J., Berlo, K., Migdisov, A. A., & Williams-Jones, A. E. CO2-fluxing collapses metal mobility in magmatic vapour. United States. https://doi.org/10.7185/geochemlet.1617
van Hinsberg, V. J., Berlo, K., Migdisov, A. A., and Williams-Jones, A. E. Wed .
"CO2-fluxing collapses metal mobility in magmatic vapour". United States. https://doi.org/10.7185/geochemlet.1617. https://www.osti.gov/servlets/purl/1255257.
@article{osti_1255257,
title = {CO2-fluxing collapses metal mobility in magmatic vapour},
author = {van Hinsberg, V. J. and Berlo, K. and Migdisov, A. A. and Williams-Jones, A. E.},
abstractNote = {Magmatic systems host many types of ore deposits, including world-class deposits of copper and gold. Magmas are commonly an important source of metals and ore-forming fluids in these systems. In many magmatic-hydrothermal systems, low-density aqueous fluids, or vapours, are significant metal carriers. Such vapours are water-dominated shallowly, but fluxing of CO2-rich vapour exsolved from deeper magma is now recognised as ubiquitous during open-system magma degassing. Furthermore, we show that such CO2-fluxing leads to a sharp drop in element solubility, up to a factor of 10,000 for Cu, and thereby provides a highly efficient, but as yet unrecognised mechanism for metal deposition.},
doi = {10.7185/geochemlet.1617},
journal = {Geochemical Perspectives Letters},
number = C,
volume = 824,
place = {United States},
year = {Wed May 18 00:00:00 EDT 2016},
month = {Wed May 18 00:00:00 EDT 2016}
}
Web of Science
Works referenced in this record:
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Works referencing / citing this record:
A distinct metal fingerprint in arc volcanic emissions
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A distinct metal fingerprint in arc volcanic emissions
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A distinct metal fingerprint in arc volcanic emissions
text, January 2018
- Edmonds, Marie; Mather, Tamsin; Liu, Emma
- Apollo - University of Cambridge Repository
Vapor Transport and Deposition of Cu-Sn-Co-Ag Alloys in Vesicles in Mafic Volcanic Rocks
journal, March 2020
- Hunter, Elizabeth A. O.; Hunter, Jacob R.; Zajacz, Zoltan
- Economic Geology, Vol. 115, Issue 2