Interactions of magmas and highly reduced fluids during intraplate volcanism, Mt Carmel, Israel: Implications for mantle redox states and global carbon cycles

Griffin, W.L.; Bindi, L.; Cámara, F.; Ma, C.; Gain, S.E.M.; Saunders, M.; Alard, O.; Huang, J.-X.; Shaw, J.; Meredith, C.; Toledo, V.; O'Reilly, S.Y.

doi:10.1016/j.gr.2023.10.013

Gondwana Research

2024

DOI: 10.1016/j.gr.2023.10.013

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Interactions of magmas and highly reduced fluids during intraplate volcanism, Mt Carmel, Israel: Implications for mantle redox states and global carbon cycles

W.L. Griffin,

L. Bindi,

F. Cámara

et al.

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Cited by 6 publications

References 151 publications

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Reduced mineral assemblages of superficial origin in west-central Jordan

Vereshchagin,

Khmelnitskaya,

Murashko

et al. 2024

Miner Petrol

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Reduced mineral assemblages of superficial origin in west-central Jordan

Vereshchagin,

Khmelnitskaya,

Murashko

et al. 2024

Miner Petrol

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Telluric iron assemblages as a source of prebiotic phosphorus on the early Earth: Insights from Disko Island, Greenland

Vereshchagin,

Khmelnitskaya,

Kamaeva

et al. 2024

Geoscience Frontiers

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Griffinite, Al2TiO5: A New Oxide Mineral from Inclusions in Corundum Xenocrysts from the Mount Carmel Area, Israel

Ma,

Cámara,

Toledo

et al. 2023

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Griffinite (IMA 2021-110), ideally Al2TiO5, is a new mineral from inclusions in corundum xenocrysts from the Mount Carmel area, Israel. It occurs as subhedral crystals, ~1–4 μm in size, together with Zr-rich rutile within a corundum grain. In this study, a mean of eight electron probe microanalyses gave TiO2 44.41 (24), Al2O3 55.13 (18), FeO 0.47 (5), and MgO 0.37 (2), totaling 100.38 wt%, which corresponded, on the basis of a total of five oxygen atoms, to (Al1.97Mg0.02Fe0.01)Ti1.01O5. Electron back-scatter diffraction studies revealed that griffinite is orthorhombic and in the space group Cmcm, with a = 3.58 (2) Å, b = 9.44 (1) Å, c = 9.65 (1) Å, and V = 326 (2) Å3 with Z = 4. The six strongest calculated powder diffraction lines [d in Å (I/I0) (hkl)] are 3.347 (100) (110); 2.658 (90) (023); 4.720 (77) (020); 1.903 (57) (043); 1.790 (55) (200); and 1.688 (44) (134). In the crystal structure, Al3+ and Ti4+ are disordered into two distinct distorted octahedra, which form edge-sharing double chains. Griffinite is a high-temperature oxide mineral, formed in melt pockets in corundum-aggregate xenoliths derived from the upper mantle beneath Mount Carmel, Israel. The new mineral is named after William L. Griffin, a geologist at Macquarie University, Australia.

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Interactions of magmas and highly reduced fluids during intraplate volcanism, Mt Carmel, Israel: Implications for mantle redox states and global carbon cycles

Cited by 6 publications

References 151 publications

Reduced mineral assemblages of superficial origin in west-central Jordan

Reduced mineral assemblages of superficial origin in west-central Jordan

Telluric iron assemblages as a source of prebiotic phosphorus on the early Earth: Insights from Disko Island, Greenland

Griffinite, Al2TiO5: A New Oxide Mineral from Inclusions in Corundum Xenocrysts from the Mount Carmel Area, Israel

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