Silica is unlikely to be soluble in upper crustal carbonatite melts
| dc.contributor.author | Anenburg, Michael | |
| dc.contributor.author | Guzmics, Tibor | |
| dc.date.accessioned | 2024-06-04T01:33:54Z | |
| dc.date.available | 2024-06-04T01:33:54Z | |
| dc.date.issued | 2023-02-21 | |
| dc.description.abstract | A consensus among all experimental studies is that the solubility of silica (SiO2) is low in upper crustal carbonatite melts of below 5 kbar and 1000 °C (mostly much less than 5 wt% SiO2)1,2, in agreement with most natural melt inclusion studies3,4,5,6. Recently, Berndt and Klemme (B&K hereafter) documented haüyne-hosted melt inclusions from the Laacher See volcano exhibiting carbonatite–silicate liquid immiscibility formed at 720–880 °C and 1–2 kbar, with measured carbonatite melt containing high SiO2 (~ 15 wt%), and moderately low Na2O and K2O (combined contents below 8 wt%)7. Their reported silica contents are exceptionally high, never before observed in natural melt inclusions, and never synthesised in experimental studies at upper crustal conditions. If correct, their results significantly increase the permissible silica range contained in natural carbonatite melts, but our results show that their reported composition cannot be liquid, rejecting the existence silica-rich carbonatite melts at these conditions. | |
| dc.format.mimetype | application/pdf | en_AU |
| dc.identifier.uri | https://hdl.handle.net/1885/733713056 | |
| dc.language.iso | en_AU | en_AU |
| dc.provenance | 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/. | |
| dc.publisher | Nature Springer | |
| dc.relation | http://purl.org/au-research/grants/arc/LP190100635 | |
| dc.rights | © 2023 The authors | |
| dc.rights.license | Creative Commons Attribution 4.0 International License | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.source | Nature Communications | |
| dc.source.uri | https://www.nature.com/articles/s41467-023-35840-6 | |
| dc.title | Silica is unlikely to be soluble in upper crustal carbonatite melts | |
| dc.type | Journal article | |
| dcterms.accessRights | Open Access | |
| dcterms.dateAccepted | 2022-11-09 | |
| local.bibliographicCitation.startpage | 942 | |
| local.contributor.affiliation | Australian National University | |
| local.contributor.authoruid | u5668658 | |
| local.identifier.absfor | 370503 - Igneous and metamorphic petrology | |
| local.identifier.doi | 10.1038/s41467-023-35840-6 | |
| local.publisher.url | https://www.nature.com/ | |
| publicationvolume.volumeNumber | 14 |