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Data Publication
Major and trace element analysis of Ca-Mg-carbonates and carbonate melt at 6 and 9 GPa
Sieber, Melanie J. | Wilke, Franzsika D. H. | Appel, Oona | Oelze, Marcus | Koch-Müller, Monika
GFZ Data Services
(2022)
The melting relations of the CaCO3 MgCO3 system are investigated and trace element partition coefficient of Li, Na, K, Mn, Fe, Sr, Ba, Pb, Nb, Y and rare earth elements (REEs) between carbonates (Mg-calcite, Ca-magnesite) and dolomitic melt are established from high pressure (6 and 9 GPa) and temperature (1300 1800 ℃) experiments utilizing a rocking multi anvil press. We show that Ca Mg carbonates are stable within the subducting slab beyond ~300 km (9 GPa) but will (partial) melt beneath mid ocean ridges and in upwelling plumes. In contrast to previous studies, we report incongruent melting of carbonates producing a carbonate melt and periclase between 4 and 9 GPa. Partial melting of carbonates produces dolomitic melts whereby the trace element signature largely depends on the Ca/Mg-ratio of the bulk system. For instance, REE will be fractionated by two orders or magnitude between Ca magnesite and dolomitic melt. In contrast, melting of Ca rich carbonates will not lead to a significant REE fractionation. The here published data set includes all chemical analysis (major and trace elment composition) of run products and starting materials. From this data set we obtained the melting relations and partition coefficients reported in Sieber et al. (2020); Sieber et al. (under review).
Keywords
MSL enriched keywords
MSL enriched sub domains i
Source publisher
GFZ Data Services
DOI
10.5880/gfz.3.6.2022.001
Authors
Sieber, Melanie J.
0000-0001-6166-0094
GFZ German Research Centre for Geosciences, Potsdam, Germany; University of Potsdam, Institute for Geosciences, Potsdam, Germany;
Wilke, Franzsika D. H.
0000-0002-3463-6176
GFZ German Research Centre for Geosciences, Potsdam, Germany;
Appel, Oona
GFZ German Research Centre for Geosciences, Potsdam, Germany;
Oelze, Marcus
0000-0002-3950-6629
GFZ German Research Centre for Geosciences, Potsdam, Germany;
Koch-Müller, Monika
0000-0001-6973-4967
GFZ German Research Centre for Geosciences, Potsdam, Germany;
Contributers
FAMILI Fluid And Melt Inclusion LA-ICP-MS Lab (GFZ German Research Centre for Geosciences, Germany)
HostingInstitution
GFZ German Research Centre for Geosciences, Potsdam, Germany;
Elemental Mapping by LA-ICP-MS (GFZ German Research Centre for Geosciences, Germany)
HostingInstitution
GFZ German Research Centre for Geosciences, Potsdam, Germany;
Microprobe Lab (GFZ German Research Centre for Geosciences, Germany)
HostingInstitution
GFZ German Research Centre for Geosciences, Potsdam, Germany;
Sieber, Melanie J.
ContactPerson
University of Potsdam, Institute for Geosciences, Potsdam, Germany;
References
Sieber, M. J., Wilke, F., & Koch-Müller, M. (2020). Partition coefficients of trace elements between carbonates and melt and suprasolidus phase relation of Ca-Mg-carbonates at 6 GPa. American Mineralogist, 105(6), 922–931. https://doi.org/10.2138/am-2020-7098
10.2138/am-2020-7098
IsSupplementTo
DOI of paper when available
IsSupplementTo
Jochum, K. P., Weis, U., Stoll, B., Kuzmin, D., Yang, Q., Raczek, I., Jacob, D. E., Stracke, A., Birbaum, K., Frick, D. A., Günther, D., & Enzweiler, J. (2011). Determination of Reference Values for NIST SRM 610–617 Glasses Following ISO Guidelines. Geostandards and Geoanalytical Research, 35(4), 397–429. Portico. https://doi.org/10.1111/j.1751-908x.2011.00120.x
10.1111/j.1751-908X.2011.00120.x
Cites
Paton, C., Hellstrom, J., Paul, B., Woodhead, J., & Hergt, J. (2011). Iolite: Freeware for the visualisation and processing of mass spectrometric data. Journal of Analytical Atomic Spectrometry, 26(12), 2508. https://doi.org/10.1039/c1ja10172b
10.1039/C1JA10172B
Cites
Sieber, M. J., Wilke, F., & Koch-Müller, M. (2020). Partition coefficients of trace elements between carbonates and melt and suprasolidus phase relation of Ca-Mg-carbonates at 6 GPa. American Mineralogist, 105(6), 922–931. https://doi.org/10.2138/am-2020-7098
10.2138/am-2020-7098
Cites
Woodhead, J. D., Hellstrom, J., Hergt, J. M., Greig, A., & Maas, R. (2007). Isotopic and Elemental Imaging of Geological Materials by Laser Ablation Inductively Coupled Plasma‐Mass Spectrometry. Geostandards and Geoanalytical Research, 31(4), 331–343. Portico. https://doi.org/10.1111/j.1751-908x.2007.00104.x
10.1111/j.1751-908X.2007.00104.x
Cites
Contact
Sieber, Melanie J.
University of Potsdam, Institute for Geosciences, Potsdam, Germany;
Citiation
Sieber, M. J., Wilke, F. D. H., Appel, O., Oelze, M., & Koch-Müller, M. (2022). Major and trace element analysis of Ca-Mg-carbonates and carbonate melt at 6 and 9 GPa (Version 1) [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.3.6.2022.001