Articles | Volume 33, issue 5
https://doi.org/10.5194/ejm-33-621-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ejm-33-621-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Oct 2021
Research article |
| 15 Oct 2021
| 15 Oct 2021
A new clinopyroxene thermobarometer for mafic to intermediate magmatic systems
Xudong Wang
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing, 100083, China
Tong Hou
CORRESPONDING AUTHOR
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing, 100083, China
Institute of Mineralogy, Leibniz University of Hannover, 30167
Hannover, Germany
Meng Wang
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing, 100083, China
Chao Zhang
State Key Laboratory of Continental Dynamics, Northwest University,
Xi'an, 710069, China
Zhaochong Zhang
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing, 100083, China
Ronghao Pan
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing, 100083, China
Felix Marxer
Institute of Mineralogy, Leibniz University of Hannover, 30167
Hannover, Germany
Hongluo Zhang
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing, 100083, China
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Florian Pohl, Harald Behrens, Martin Oeser, Felix Marxer, and Ralf Dohmen
Eur. J. Mineral., 36, 985–1003, https://doi.org/10.5194/ejm-36-985-2024, https://doi.org/10.5194/ejm-36-985-2024, 2024
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The growing interest in lithium (Li) diffusion for the determination of timescales of magmatic events increases the necessity to better understand Li diffusion in common mineral phases. In this context we analyzed Li diffusion in plagioclase, one of the most common mineral phases. Our study is the first to confirm two diffusion mechanisms for Li in plagioclase, and our results indicate timescales derived from Li diffusion data in previous studies were underestimated by a factor of up to 100.
Diego González-García, Florian Pohl, Felix Marxer, Stepan Krasheninnikov, Renat Almeev, and François Holtz
Eur. J. Mineral., 36, 623–640, https://doi.org/10.5194/ejm-36-623-2024, https://doi.org/10.5194/ejm-36-623-2024, 2024
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We studied the exchange of chemical elements by diffusion between magmas of tephritic and phonolitic composition from the Canary Islands, performing experiments at high pressure and high temperature with different amounts of added water. Our results characterize the way water and temperature affect the diffusion process, and we also find unexpectedly high mobility of aluminium, which may be related to its variable chemical bonding in highly alkaline melts.
Artur Engelhardt, Jürgen Koepke, Chao Zhang, Dieter Garbe-Schönberg, and Ana Patrícia Jesus
Eur. J. Mineral., 34, 603–626, https://doi.org/10.5194/ejm-34-603-2022, https://doi.org/10.5194/ejm-34-603-2022, 2022
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We present a detailed petrographic, microanalytical and bulk-chemical investigation of 36 mafic rocks from drill hole GT3A from the dike–gabbro transition zone. These varitextured gabbros are regarded as the frozen fillings of axial melt lenses. The oxide gabbros could be regarded as frozen melts, whereas the majority of the rocks, comprising olivine-bearing gabbros and gabbros, show a distinct cumulate character. Also, we present a formation scenario for the varitextured gabbros.
Diao Luo, Marc K. Reichow, Tong Hou, M. Santosh, Zhaochong Zhang, Meng Wang, Jingyi Qin, Daoming Yang, Ronghao Pan, Xudong Wang, François Holtz, and Roman Botcharnikov
Eur. J. Mineral., 34, 469–491, https://doi.org/10.5194/ejm-34-469-2022, https://doi.org/10.5194/ejm-34-469-2022, 2022
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Volcanoes on Earth are divided into monogenetic and composite volcanoes based on edifice shape. Currently the evolution from monogenetic to composite volcanoes is poorly understood. There are two distinct magma chambers, with a deeper region at the Moho and a shallow mid-crustal zone in the Wulanhada Volcanic Field. The crustal magma chamber represents a snapshot of transition from monogenetic to composite volcanoes, which experience more complex magma processes than magma stored in the Moho.
Related subject area
Igneous petrology
Magmatic to solid-state evolution of a shallow emplaced agpaitic tinguaite (the Suc de Sara dyke, Velay volcanic province, France): implications for peralkaline melt segregation and extraction in ascending magmas
Granite magmatism and mantle filiation
Inclusions in magmatic zircon from Slavonian mountains (eastern Croatia): anatase, kumdykolite and kokchetavite and implications for the magmatic evolution
Confocal μ-XANES as a tool to analyze Fe oxidation state in heterogeneous samples: the case of melt inclusions in olivine from the Hekla volcano
Constraining the volatile evolution of mafic melts at Mt. Somma–Vesuvius, Italy, based on the composition of reheated melt inclusions and their olivine hosts
Contrasting appinites, vaugnerites and related granitoids from the NW Iberian Massif: insight into mantle and crustal sources
Reactive interaction between migmatite-related melt and mafic rocks: clues from the Variscan lower crust of Palmi (southwestern Calabria, Italy)
ICDP Oman Drilling Project: varitextured gabbros from the dike–gabbro transition within drill core GT3A
A snapshot of the transition from monogenetic volcanoes to composite volcanoes: case study on the Wulanhada Volcanic Field (northern China)
40Ar/39Ar dating of a hydrothermal pegmatitic buddingtonite–muscovite assemblage from Volyn, Ukraine
Geochronology of granites of the western Korosten AMCG complex (Ukrainian Shield): implications for the emplacement history and origin of miarolitic pegmatites
Quantification of major and trace elements in fluid inclusions and gas bubbles by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) with no internal standard: a new method
New evidence for upper Permian crustal growth below Eifel, Germany, from mafic granulite xenoliths
Contaminating melt flow in magmatic peridotites from the lower continental crust (Rocca d'Argimonia sequence, Ivrea–Verbano Zone)
Thomas Pereira, Laurent Arbaret, Juan Andújar, Mickaël Laumonier, Monica Spagnoli, Charles Gumiaux, Gautier Laurent, Aneta Slodczyk, and Ida Di Carlo
Eur. J. Mineral., 36, 491–524, https://doi.org/10.5194/ejm-36-491-2024, https://doi.org/10.5194/ejm-36-491-2024, 2024
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This work presents the results on deformation-enhanced melt segregation and extraction in a phonolitic magma emplaced at shallow depth in the Velay volcanic province (France). We provide evidence of the segregation and subsequent extraction of the residual melt during magma ascent and final emplacement. We highlight that melt segregation started by compaction as a loose packing of microlites emerged and continued with melt filling of a shear band network.
Michel Pichavant, Arnaud Villaros, Julie A.-S. Michaud, and Bruno Scaillet
Eur. J. Mineral., 36, 225–246, https://doi.org/10.5194/ejm-36-225-2024, https://doi.org/10.5194/ejm-36-225-2024, 2024
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Models for the generation of silicic magmas are divided into two groups: intra-crustal melting and basaltic origin. Peraluminous felsic leucogranites are considered as the only granite examples showing no mantle input. This interpretation is re-evaluated, and we show that leucogranites, as most other crustal granite types, can have a mantle filiation. This stresses the critical importance of the mantle for granite generation and opens the way for unification of silicic magma generation models.
Petra Schneider and Dražen Balen
Eur. J. Mineral., 36, 209–223, https://doi.org/10.5194/ejm-36-209-2024, https://doi.org/10.5194/ejm-36-209-2024, 2024
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The acid igneous rocks of eastern Croatia related to the Late Cretaceous closure of the Neotethys Ocean contain zircon as a main accessory mineral. Among others, zircon has inclusions of anatase, hematite and melt (nanogranitoids) with kokchetavite and kumdykolite. The first finding here of kokchetavite and kumdykolite in a magmatic nanogranitoid proves that these are not exclusively ultra-high pressure phases. The detected inclusions indicate rapid uplift and cooling of the oxidised magma.
Roman Botcharnikov, Max Wilke, Jan Garrevoet, Maxim Portnyagin, Kevin Klimm, Stephan Buhre, Stepan Krasheninnikov, Renat Almeev, Severine Moune, and Gerald Falkenberg
Eur. J. Mineral., 36, 195–208, https://doi.org/10.5194/ejm-36-195-2024, https://doi.org/10.5194/ejm-36-195-2024, 2024
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The new spectroscopic method, based on the syncrotron radiation, allows for determination of Fe oxidation state in tiny objects or in heterogeneous samples. This technique is expected to be an important tool in geosciences unraveling redox conditions in rocks and magmas as well as in material sciences providing constraints on material properties.
Rosario Esposito, Daniele Redi, Leonid V. Danyushevsky, Andrey Gurenko, Benedetto De Vivo, Craig E. Manning, Robert J. Bodnar, Matthew Steele-MacInnis, and Maria-Luce Frezzotti
Eur. J. Mineral., 35, 921–948, https://doi.org/10.5194/ejm-35-921-2023, https://doi.org/10.5194/ejm-35-921-2023, 2023
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Despite many articles published about eruptions at Mt. Somma–Vesuvius (SV), the volatile contents of magmas associated with mafic (quasi-primitive) melts were not directly analyzed for many eruptions based on melt inclusions (MIs). We suggest that several high-Fo olivines formed at depths greater than those of the carbonate platform based on MI chemical composition. We also estimated that 347 to 686 t d-1 of magmatic CO2 exsolved from SV magmas during the last 3 centuries of volcanic activity.
Gumer Galán, Gloria Gallastegui, Andrés Cuesta, Guillermo Corretgé, Ofelia Suárez, and Luis González-Menéndez
Eur. J. Mineral., 35, 845–871, https://doi.org/10.5194/ejm-35-845-2023, https://doi.org/10.5194/ejm-35-845-2023, 2023
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Two examples of granites in the Variscan Iberian Massif were studied because they are associated with mafic rocks (appinites and vaugnerites), which raise the question of the role of mantle magma in the formation of granitic rocks. We conclude that appinites and vaugnerites derived from melting of different mantle sources, both previously modified by interaction with crustal materials. Subsequent differentiation of appinites and vaugnerites was influenced by contamination with coeval granites.
Maria Rosaria Renna
Eur. J. Mineral., 35, 1–24, https://doi.org/10.5194/ejm-35-1-2023, https://doi.org/10.5194/ejm-35-1-2023, 2023
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Distribution of major and trace elements during anatexis at the source area was investigated in a portion of Variscan mid–lower crust exposed at Palmi (Calabria, Italy). Reactive migration of migmatitic melt imparted a mineralogical and chemical signature in mafic rocks associated with migmatites and promoted the crystallization of amphibole by a coupled dissolution–precipitation process. Amphibole and accessory allanite control the distribution of incompatible elements from the anatectic zone.
Artur Engelhardt, Jürgen Koepke, Chao Zhang, Dieter Garbe-Schönberg, and Ana Patrícia Jesus
Eur. J. Mineral., 34, 603–626, https://doi.org/10.5194/ejm-34-603-2022, https://doi.org/10.5194/ejm-34-603-2022, 2022
Short summary
Short summary
We present a detailed petrographic, microanalytical and bulk-chemical investigation of 36 mafic rocks from drill hole GT3A from the dike–gabbro transition zone. These varitextured gabbros are regarded as the frozen fillings of axial melt lenses. The oxide gabbros could be regarded as frozen melts, whereas the majority of the rocks, comprising olivine-bearing gabbros and gabbros, show a distinct cumulate character. Also, we present a formation scenario for the varitextured gabbros.
Diao Luo, Marc K. Reichow, Tong Hou, M. Santosh, Zhaochong Zhang, Meng Wang, Jingyi Qin, Daoming Yang, Ronghao Pan, Xudong Wang, François Holtz, and Roman Botcharnikov
Eur. J. Mineral., 34, 469–491, https://doi.org/10.5194/ejm-34-469-2022, https://doi.org/10.5194/ejm-34-469-2022, 2022
Short summary
Short summary
Volcanoes on Earth are divided into monogenetic and composite volcanoes based on edifice shape. Currently the evolution from monogenetic to composite volcanoes is poorly understood. There are two distinct magma chambers, with a deeper region at the Moho and a shallow mid-crustal zone in the Wulanhada Volcanic Field. The crustal magma chamber represents a snapshot of transition from monogenetic to composite volcanoes, which experience more complex magma processes than magma stored in the Moho.
Gerhard Franz, Masafumi Sudo, and Vladimir Khomenko
Eur. J. Mineral., 34, 7–18, https://doi.org/10.5194/ejm-34-7-2022, https://doi.org/10.5194/ejm-34-7-2022, 2022
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The age of formation of buddingtonite, ammonium-bearing feldspar, can be dated with the Ar–Ar method; however, it may often give only minimum ages due to strong resetting. In the studied example it gives a Precambrian minimum age of fossils, associated with this occurrence, and the age of the accompanying mineral muscovite indicates an age near 1.5 Ga. We encourage more dating attempts of buddingtonite, which will give valuable information of diagenetic or hydrothermal events.
Leonid Shumlyanskyy, Gerhard Franz, Sarah Glynn, Oleksandr Mytrokhyn, Dmytro Voznyak, and Olena Bilan
Eur. J. Mineral., 33, 703–716, https://doi.org/10.5194/ejm-33-703-2021, https://doi.org/10.5194/ejm-33-703-2021, 2021
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In the paper we discuss the origin of large chamber pegmatite bodies which contain giant gem-quality crystals of black quartz (morion), beryl, and topaz. We conclude that these pegmatites develop under the influence of later intrusions of mafic rocks that cause reheating of the partly crystallized granite massifs and that they supply a large amount of fluids that facilitate the
inflationof pegmatite chambers and crystallization of giant crystals of various minerals.
Anastassia Y. Borisova, Stefano Salvi, German Velasquez, Guillaume Estrade, Aurelia Colin, and Sophie Gouy
Eur. J. Mineral., 33, 305–314, https://doi.org/10.5194/ejm-33-305-2021, https://doi.org/10.5194/ejm-33-305-2021, 2021
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We developed a new method for quantifying elemental concentrations in natural and synthetic fluid inclusions and gas bubbles using a laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) method with no internal standard. The method may be applied to estimate trace (metal and metalloid) elemental concentrations in hydrous carbonic (C–O–H) fluid inclusions and bubbles with uncertainty below 25 %.
Cliff S. J. Shaw
Eur. J. Mineral., 33, 233–247, https://doi.org/10.5194/ejm-33-233-2021, https://doi.org/10.5194/ejm-33-233-2021, 2021
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Volcanic activity in the West Eifel region of Germany over the past million years has brought many samples of the Earth's mantle and crust to the surface. The samples from this study are pieces of the deep crust that formed between 264 and 253 million years ago at a depth of ~ 30 km. Samples like these reveal how the Earth's crust has grown and been modified over time.
Marta Antonicelli, Riccardo Tribuzio, Tong Liu, and Fu-Yuan Wu
Eur. J. Mineral., 32, 587–612, https://doi.org/10.5194/ejm-32-587-2020, https://doi.org/10.5194/ejm-32-587-2020, 2020
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We present a petrological–geochemical investigation of peridotites of magmatic origin from the Ivrea–Verbano Zone (Italian Alps), a large-scale section of lower continental crust. The main purpose is to provide new insights into the processes governing the evolution of primitive mantle magmas. We propose that studied peridotites were formed by reaction of a melt-poor olivine-rich crystal mush, or a pre-existing peridotite, with upward-migrating melts possessing a substantial crustal component.
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Short summary
In this paper we calibrate a new empirical clinopyroxene-only thermobarometer based on new models. The new models show satisfying performance in both calibration and the test dataset compared with previous thermobarometers. Our new thermobarometer has been tested on natural clinopyroxenes in the Icelandic eruptions. The results show good agreement with experiments. Hence, it can be widely used to elucidate magma storage conditions.
In this paper we calibrate a new empirical clinopyroxene-only thermobarometer based on new...
