Crystal mush dykes as conduits for mineralising fluids in the Yerington porphyry copper district, Nevada
dc.contributor.author | Carter, LC | |
dc.contributor.author | Williamson, BJ | |
dc.contributor.author | Tapster, SR | |
dc.contributor.author | Costa, C | |
dc.contributor.author | Grime, GW | |
dc.contributor.author | Rollinson, GK | |
dc.date.accessioned | 2021-03-17T15:25:01Z | |
dc.date.issued | 2021-03-17 | |
dc.description.abstract | Porphyry-type deposits are the world’s main source of copper and molybdenum and provide a large proportion of gold and other metals. However, the mechanism by which mineralising fluids are extracted from source magmas and transported upwards into the ore-forming environment is not clearly understood. Here we use field, micro-textural and geochemical techniques to investigate field relationships and samples from a circa 8 km deep cross-section through the archetypal Yerington porphyry district, Nevada. We identify an interconnected network of relatively low-temperature hydrothermal quartz that is connected to mineralised miarolitic cavities within aplite dykes. We propose that porphyry-deposit-forming fluids migrated from evolved, more water-rich internal regions of the underlying Luhr Hill granite via these aplite dykes which contained a permeable magmatic crystal mush of feldspar and quartz. The textures we describe provide petrographic evidence for the transport of fluids through crystal mush dykes. We suggest that this process should be considered in future models for the formation of porphyry- and similar-type deposits. | en_GB |
dc.description.sponsorship | Natural Environment Research Council (NERC) | en_GB |
dc.description.sponsorship | British Geological Survey | en_GB |
dc.description.sponsorship | Natural History Museum, London | en_GB |
dc.description.sponsorship | Society of Economic Geologists Foundation | en_GB |
dc.identifier.citation | Vol. 2, article 59 | en_GB |
dc.identifier.doi | 10.1038/s43247-021-00128-4 | |
dc.identifier.grantnumber | NE/L002434/1 | en_GB |
dc.identifier.grantnumber | NE/P017452/1 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/125147 | |
dc.language.iso | en | en_GB |
dc.publisher | Nature Research | en_GB |
dc.relation.url | https://doi.org/10.5281/zenodo.4482715 | en_GB |
dc.rights | © The Author(s) 2021. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ | en_GB |
dc.title | Crystal mush dykes as conduits for mineralising fluids in the Yerington porphyry copper district, Nevada | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2021-03-17T15:25:01Z | |
exeter.article-number | 59 | en_GB |
dc.description | This is the final version. Available on open access from Nature Research via the DOI in this record | en_GB |
dc.description | Data availability: The authors declare that the data supporting the findings of this study are available within the paper and its Supplementary Information files. QEMSCAN, EPMA and Total-IBA data are also available at https://doi.org/10.5281/zenodo.4482715 | en_GB |
dc.identifier.eissn | 2662-4435 | |
dc.identifier.journal | Communications Earth & Environment | en_GB |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2021-02-16 | |
exeter.funder | ::Natural Environment Research Council (NERC) | en_GB |
exeter.funder | ::Natural Environment Research Council (NERC) | en_GB |
exeter.funder | ::British Geological Survey (BGS) | en_GB |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2021-03-17 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2021-03-17T15:22:20Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2021-03-17T15:25:12Z | |
refterms.panel | B | en_GB |
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