Articles | Volume 34, issue 1
https://doi.org/10.5194/ejm-34-109-2022
https://doi.org/10.5194/ejm-34-109-2022
Research article
 | 
16 Feb 2022
Research article |  | 16 Feb 2022

Melt–rock interactions in a veined mantle: pyroxenite–peridotite reaction experiments at 2 GPa

Giulio Borghini, Patrizia Fumagalli, and Elisabetta Rampone

Related authors

The influence of oxygen fugacity and chlorine on amphibole–liquid trace element partitioning at upper-mantle conditions
Enrico Cannaò, Massimo Tiepolo, Giulio Borghini, Antonio Langone, and Patrizia Fumagalli
Eur. J. Mineral., 34, 35–57, https://doi.org/10.5194/ejm-34-35-2022,https://doi.org/10.5194/ejm-34-35-2022, 2022
Short summary
Melting relations of anhydrous olivine-free pyroxenite Px1 at 2 GPa
Giulio Borghini and Patrizia Fumagalli
Eur. J. Mineral., 32, 251–264, https://doi.org/10.5194/ejm-32-251-2020,https://doi.org/10.5194/ejm-32-251-2020, 2020

Related subject area

High-pressure study of minerals
The miscibility gap between the rock salt and wurtzite phases in the MgO–ZnO binary system to 3.5 GPa
Nicholas Farmer and Hugh St. C. O'Neill
Eur. J. Mineral., 35, 1051–1071, https://doi.org/10.5194/ejm-35-1051-2023,https://doi.org/10.5194/ejm-35-1051-2023, 2023
Short summary
High-pressure and high-temperature structure and equation of state of Na3Ca2La(CO3)5 burbankite
Sula Milani, Deborah Spartà, Patrizia Fumagalli, Boby Joseph, Roberto Borghes, Valentina Chenda, Juliette Maurice, Giorgio Bais, and Marco Merlini
Eur. J. Mineral., 34, 351–358, https://doi.org/10.5194/ejm-34-351-2022,https://doi.org/10.5194/ejm-34-351-2022, 2022
Short summary
In situ reinvestigation of reaction phase A plus high-pressure clinoenstatite to forsterite plus water in the system MgO-SiO2-H2O (MSH)
Christian Lathe, Monika Koch-Müller, Bernd Wunder, Oona Appelt, Shrikant Bhat, and Robert Farla
Eur. J. Mineral., 34, 201–213, https://doi.org/10.5194/ejm-34-201-2022,https://doi.org/10.5194/ejm-34-201-2022, 2022
Short summary
New insights in the mechanisms of the reaction 3.65 Å phase  =  clinoenstatite + water down to nanoscales
Monika Koch-Müller, Oona Appelt, Bernd Wunder, and Richard Wirth
Eur. J. Mineral., 33, 675–686, https://doi.org/10.5194/ejm-33-675-2021,https://doi.org/10.5194/ejm-33-675-2021, 2021
Short summary
Deformation of NaCoF3 perovskite and post-perovskite up to 30 GPa and 1013 K: implications for plastic deformation and transformation mechanism
Jeffrey P. Gay, Lowell Miyagi, Samantha Couper, Christopher Langrand, David P. Dobson, Hanns-Peter Liermann, and Sébastien Merkel
Eur. J. Mineral., 33, 591–603, https://doi.org/10.5194/ejm-33-591-2021,https://doi.org/10.5194/ejm-33-591-2021, 2021
Short summary

Cited articles

Allègre, C. J. and Turcotte, D. L.: Implications of a two-component marble-cake mantle, Nature, 323, 123–127, 1986. 
Bodinier, J.-L. and Godard, M.: Orogenic, ophiolitic and abyssal peridotites, in: Treatise on Geochemistry, Vol. 2, 2nd Edn., Holland, H. D. and Turekian, K. K., Elsevier Science, Oxford, UK, 2014. 
Bodinier, J.-L., Guiraud, M., Fabries, J., Dostal, J., and Dupuy, C.: Petrogenesis of layered pyroxenites from the Lherz, Freychinede and Prades ultramafic bodies (Ariege, French Pyrenees), Geochim. Cosmochim. Ac., 51, 279–290, 1987a. 
Bodinier, J.-L., Fabries, J., Lorand, J.-P., Dostal, J., and Dupuy, C.: Geochemistry of amphibole pyroxenite veins from the Lherz and Freychinede ultramafic bodies (Ariege, French Pyrenees), B. Mineral., 110, 345–358, 1987b. 
Bodinier, J.-L., Vasseur, G., Vernieres, J., Dupuy, C., and Fabries, J.: Mechanisms of mantle metasomatism: geochemical evidence from the Lherz orogenic peridotite, J. Petrol., 31, 597–628, 1990. 
Download
Short summary
The mineralogical and chemical heterogeneity of the mantle is poorly known because it is not able to be directly investigated. Melt–peridotite interaction processes play a fundamental role in controlling the mantle composition. The results of our reaction experiments help us to evaluate the role of temperature and melt composition in the modification of the mantle through the interaction with pyroxenite-derived melts with implications for the evolution of a veined mantle.