-
Experimental insights into phase relations and liquid lines of descent of low- and high-Si boninitic magmas from the Izu-Bonin-Mariana fore-arc
Koch, L., Almeev, R. R., Marxer, F. & Holtz, F., May 2026, In: Contributions to Mineralogy and Petrology. 181, 5, 36.Research output: Contribution to journal › Article › Research › peer review
Open Access -
Fe-dependent structural evolution of peralkaline soda aluminosilicate glasses: Iron speciation vs. glass transition
Cassetta, M., De Bona, E., Sambugaro, A., Enrichi, F., Daldosso, N., Giannetta, B., Zaccone, C., Biesuz, M., Sglavo, V. M., Almeev, R., Nodari, L., Giordano, D. & Mariotto, G., 20 Feb 2025, In: Chemical geology. 674, 10 p., 122561.Research output: Contribution to journal › Article › Research › peer review
Open Access -
Ferric/ferrous ratio in silicate melts: a model calibrated for felsic compositions
Borisov, A., Krasheninnikov, S., Almeev, R. & Holtz, F., 22 Nov 2025, In: Contributions to Mineralogy and Petrology. 180, 12, 89.Research output: Contribution to journal › Article › Research › peer review
-
Influence of volatiles (H2O and CO2) on shoshonite phase equilibria
Vetere, F., Namur, O., Holtz, F., Almeev, R., Donato, P., Frondini, F., Cassetta, M., Pisello, A. & Perugini, D., 12 Feb 2025, In: Comptes Rendus Géoscience (Print). 356, S1, p. 35-52Research output: Contribution to journal › Article › Research › peer review
Open Access -
Lithium isotope fractionation between mica, quartz, amphibole, feldspars, and granitic melt: Experimental approach and implications for natural granitic systems
Gao, X., Michaud, J. A. S., Koch, L., Zhou, Z., Zhang, C., Horn, I., Almeev, R. R., Weyer, S. & Holtz, F., 15 Oct 2025, In: Geochimica et cosmochimica acta. 407, p. 12-31 20 p.Research output: Contribution to journal › Article › Research › peer review
Open Access
-
Evolution of magmatic systems in a nascent subduction zone: the example of Izu-Bonin-Mariana arc (IODP expedition 352) (project in the Priority Programme 527: Infrastructure area - International Ocean Drilling Programme³ (IODP³))
Sester, M. (Co-Investigator) & Almeev, R. (Principal Investigator)
1 Oct 2025 → 30 Apr 2029
Project: Research
-
Large Scale Artificial Intelligence Augmented Mineral Analysis (LS-MAIner) – characterization of volcanic rocks for diffusion chronometry (sub-project TP8 of the Research Unit 2881: Diffusion Chronometry of magmatic systems)
Sester, M. (Principal Investigator), Almeev, R. (Principal Investigator), Holtz, F. (Co-Investigator) & Leichter, A. (Project staff)
1 Apr 2024 → 28 Feb 2028
Project: Research
-
Izu-Bonin-Mariana boninites - natural laboratory to study mantle melting and the evolution of magma plumbing systems in early stages of subduction (project in the Priority Programme 527: Ocean Drilling Program/Deep Sea Drilling Project)
Almeev, R. (Principal Investigator), Holtz, F. (Co-Investigator) & Koepke, J. (Co-Investigator)
1 Nov 2021 → 30 Nov 2026
Project: Research
-
Wehrlites in the ICDP OmanDP drill cores: a key to understand the nature of the hydrous magmatism in subduction zone initiation settings (project in the Priority Programme 1006 " International Continental Scientific Drilling Program (ICDP)")
Koepke, J. (Principal Investigator) & Almeev, R. (Principal Investigator)
1 Jul 2024 → 30 Jun 2025
Project: Research
-
The ferric/ferrous ratio in silicic melts: experimental investigation and modelling
Almeev, R. (Principal Investigator), Behrens, H. (Co-Investigator) & Holtz, F. (Co-Investigator)
1 Jun 2023 → 31 May 2024
Project: Research
Equipment
-
Electron microprobe JEOL JXA-iHP200F
Holtz, F. (Head)
Mineralogy SectionFacility/equipment: Research Instrumentation
-
Scanning electron microscope JEOL JSM-7610F with Bruker EDX system
Holtz, F. (Head)
Mineralogy SectionFacility/equipment: Research Instrumentation