Controls on tetrahedral Fe(III) abundance in 2:1 phyllosilicates—Discussion
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Sabine Petit
,
Fabien Baron
Abstract
Cuadros et al. (2019) used a wide range of data from dioctahedral and trioctahedral Fe3+-bearing, 2:1 phyllosilicates to propose a model describing how tetrahedral occupancy by Fe3+ takes place in both dioctahedral and trioctahedral 2:1 phyllosilicates. The partition coefficient approach (Decarreau and Petit 2014) focusing on the distribution of Al3+ and Fe3+ between octahedral and tetrahedral sites of dioctahedral smectites has been disregarded in the study of Cuadros et al. (2019). This approach was applied here on the set of data from Cuadros et al. (2019). The partition coefficient value linked to the distribution of Al3+ and Fe3+ between octahedral and tetrahedral sites determined from natural and synthetic dioctahedral smectites applies well to trioctahedral phyllosilicates too. Data from synthetic iron-rich 2:1 smectites also fit well with both Cuadros et al. (2019) and Decarreau and Petit (2014) models.
References cited
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© 2021 Mineralogical Society of America
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Artikel in diesem Heft
- Stable and transient isotopic trends in the crustal evolution of Zealandia Cordillera
- An evolutionary system of mineralogy, Part V: Aqueous and thermal alteration of planetesimals (~4565 to 4550 Ma)
- Cr2O3 in corundum: Ultrahigh contents under reducing conditions
- Plagioclase population dynamics and zoning in response to changes in temperature and pressure
- Limited channelized fluid infiltration in the Torres del Paine contact aureole
- Quantitative determination of the shock stage of L6 ordinary chondrites using X-ray diffraction
- A new method to rapidly and accurately assess the mechanical properties of geologically relevant materials
- Two-stage magmatism and tungsten mineralization in the Nanling Range, South China: Evidence from the Jurassic Helukou deposit
- Constraints on scheelite genesis at the Dabaoshan stratabound polymetallic deposit, South China
- Crystal chemistry of schreibersite, (Fe,Ni)3P
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- Elastic geobarometry: How to work with residual inclusion strains and pressures
- Controls on tetrahedral Fe(III) abundance in 2:1 phyllosilicates—Discussion
- Controls on tetrahedral Fe(III) abundance in 2:1 phyllosilicates—Reply
- New Mineral Names*
- Book Review
- Book Review: Geochronology and Thermochronology
