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Mössbauer parameters of iron in phosphate minerals: Implications for interpretation of martian data
-
M. Darby Dyar
,
Erica R. Jawin
Veröffentlicht/Copyright:
15. Mai 2014
Abstract
Phosphate minerals, while relatively rare, show a broad range of crystal structure types with linkages among PO4 tetrahedra mimicking the hierarchy of polymerization of SiO4 tetrahedra seen in silicate minerals. To augment previous Mössbauer studies of individual phosphate species and groups of species, this paper presents new Mössbauer data on 63 different phosphate samples, and integrates them with data on more than 37 phosphate species in 62 other studies from the literature. Variations in Mössbauer parameters of different sites in each mineral are then related to both the local polyhedral environment around the Fe cations and the overall structural characteristics of each species. The entire aggregated Mössbauer data set on phosphate minerals is juxtaposed against parameters obtained for spectra from the MIMOS spectrometers on Mars. This comparison demonstrates that signatures from many different phosphate or sulfate mineral species could also be contributing to Mars Mössbauer spectra. Results underscore the conclusion that unique mineral identifications are generally not possible from Mössbauer data alone, particularly for paramagnetic phases, although combining Mössbauer results with other data sets enables a greater level of confidence in constraining mineralogy. This study provides a wealth of new data on Fe-bearing phosphate minerals to bolster future analyses of Mössbauer spectra acquired on Mars.
Published Online: 2014-5-15
Published in Print: 2014-5-1
© 2014 by Walter de Gruyter Berlin/Boston
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Schlagwörter für diesen Artikel
Mossbauer;
Mars;
phosphates;
alluaudite;
arrojadite;
vivianite;
triphylite
Artikel in diesem Heft
- Highlights and Breakthroughs
- Absence of pressure-induced electron spin-state transition of iron in silicate glasses upon compression
- Dolomite discloses a hidden history of subducting slabs
- Crossroads in Earth and Planetary Materials
- Crystal structures of laihunite and intermediate phases between laihunite-1M and fayalite: Z-contrast imaging and ab initio study
- Minerals in the Human Body
- A novel technique for fluorapatite synthesis and the thermodynamic mixing behavior of F-OH apatite crystalline solutions
- Volcanic Rocks
- The cooling kinetics of plagioclase feldspar as revealed by electron-microprobe mapping
- Spinels Renaissance–Past, Present, and Future
- High-pressure behavior of thiospinel CuCr2S4
- Martian Rocks and Soil
- Mössbauer parameters of iron in phosphate minerals: Implications for interpretation of martian data
- A temperature-controlled sample stage for in situ micro-X-ray diffraction: Application to Mars analog mirabilite-bearing perennial cold spring precipitate mineralogy
- Detection of iron substitution in natroalunite-natrojarosite solid solutions and potential implications for Mars
- Articles
- Harmunite CaFe2O4: A new mineral from the Jabel Harmun, West Bank, Palestinian Autonomy, Israel
- An assessment of the reliability of melt inclusions as recorders of the pre-eruptive volatile content of magmas
- Beryllium mineral evolution
- Incorporation of Y and REEs in aluminosilicate garnet: Energetics from atomistic simulation
- Role of silica for the progress of serpentinization reactions: Constraints from successive changes in mineralogical textures of serpentinites from Iwanaidake ultramafic body, Japan
- Ophirite, Ca2Mg4[Zn2Mn23+(H2O)2(Fe3+W9O34)2]·46H2O, a new mineral with a heteropolytungstate tri-lacunary Keggin anion
- Bubble formation during decompression of andesitic melts
- Manganese carbonate formation from amorphous and nanocrystalline precursors: Thermodynamics and geochemical relevance
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- Graţianite, MnBi2S4, a new mineral from the Bǎiţa Bihor skarn, Romania
- Letters
- Microporous gold: Comparison of textures from Nature and experiments
- Valence state partitioning of V between pyroxene and melt for martian melt compositions Y 980459 and QUE 94201: The effect of pyroxene composition and crystal structure
- MSA Award Presentations
- Presentation of the Mineralogical Society of America Award for 2013 to Wendy Li-Wen Mao
- Acceptance of the Mineralogical Society of America Award for 2013
- Presentation of the 2013 Roebling Medal of the Mineralogical Society of America to Frank C. Hawthorne
- Acceptance of the 2013 Roebling Medal of the Mineralogical Society of America
- Presentation of the Distinguished Public Service Award for 2013 of the Mineralogical Society of America to Pierrette Tremblay
- Acceptance of the Distinguished Public Service Award for 2013 of the Mineralogical Society of America
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- Acceptance of the Dana Medal of the Mineralogical Society of America for 2014
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