Shock-induced transformation of olivine to a new metastable (Mg,Fe)2SiO4 polymorph in Martian meteorites

Moortèle, Bertrand Van de; Reynard, Bruno; McMillan, Paul F.; Wilson, Mark; Beck, Pierre; Gillet, Philippe; Jahn, Sandro

doi:10.1016/j.epsl.2007.07.030

Cited by 39 publications

(46 citation statements)

References 31 publications

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“…Peak at 755 cm -1 : This peak was described both in the experimentally shocked and in natural samples (Durben et al 1993;Gillet et al 2005;van de Moortéle et al 2007). These authors suggested that this peak may be associated with the SiO 5 and SiO 6 molecules as "defects within the olivine structure" (Durben et al 1993;van de Moortéle et al 2007).…”

Section: Brown and Colorless Meteoritic Olivinementioning

confidence: 91%

“…These authors suggested that this peak may be associated with the SiO 5 and SiO 6 molecules as "defects within the olivine structure" (Durben et al 1993;van de Moortéle et al 2007). However, alternatively, Gillet et al (2005) suggested that the peak near at 750 cm -1 might be attributed to the presence of Si-O-Si bridges characteristic of wadsleyite.…”

Section: Brown and Colorless Meteoritic Olivinementioning

confidence: 99%

“…Peak at 535 cm -1 : van de Moortéle et al (2007) suggested that this peak is attributed to a new ξ-(Mg,Fe) 2 SiO 4 phase indicating metastable back transformation of wadsleyite at high shock pressures. This peak is a newly observed Raman peak in this study.…”

Section: Brown and Colorless Meteoritic Olivinementioning

confidence: 99%

“…The systematic studies of micro-Raman properties of experimentally shocked olivine crystal assemblages were performed by Farrel-Turner et al (2005) and van de Moortéle et al (2007). Farrel-Turner et al (2005) found no significant characteristic relation between Raman shifts as a function of increasing shock pressure in olivine.…”

Section: Introductionmentioning

confidence: 99%

“…Farrel-Turner et al (2005) found no significant characteristic relation between Raman shifts as a function of increasing shock pressure in olivine. However, van de Moortéle et al (2007) described a new metastable phase formed at ambient pressure as the metastable intermediate during back-transformation from wadsleyite.…”

Section: Introductionmentioning

confidence: 99%

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Shock and thermal annealing history of the ALH 77005 Martian meteorite: a micro-Raman spectroscopical investigation

Nagy

Józsa

Gucsik

et al. 2012

Central European Geology

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We studied optical microscopic and micro-Raman spectroscopic signatures of shocked olivine from the ALH 77005 Martian meteorite sample. The purpose of this study is to document pressure and temperature-related effects in olivine over the entire sample, which can aid in understanding structural changes due to shock metamorphism and the post-shock thermal annealing processes of lherzolitic Martian meteorites. According to the optical microscope observations, three areas may be discernible in olivine of the ALH 77005 in the vicinity of the melt pocket. The first area is the thermally undisturbed part of a grain, which contains a high density of shock-induced planar microdeformations such as Planar Deformation Features (PDFs) and Planar Fractures (PFs). Compared to the first area, the second area shows less shock-induced microstructures, while the third area is a strongly recrystallized region, but not formed from a melt.A common Raman spectral feature of these olivines is a regular doublet peak centered at 823 and 852 cm -1 ; additionally, two new peaks at 535 and 755 cm -1 appear in the weakly annealed transition zones.

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Section: Brown and Colorless Meteoritic Olivinementioning

confidence: 91%

Section: Brown and Colorless Meteoritic Olivinementioning

confidence: 99%

Section: Brown and Colorless Meteoritic Olivinementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Shock and thermal annealing history of the ALH 77005 Martian meteorite: a micro-Raman spectroscopical investigation

Nagy

Józsa

Gucsik

et al. 2012

Central European Geology

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Development of non‐destructive analytical strategies based on Raman spectroscopy and complementary techniques for Mars Sample Return tested on Northwest Africa 1950 Martian meteorite

Coloma

García‐Florentino

Huidobro

et al. 2022

J Raman Spectroscopy

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The Mars Sample Return (MSR) is a near future mission to return samples from the surface of Mars to the Earth. The field operations to carry out data collection, selection of the samples, and sampling procedure, mainly related to the CanMars MSR analog mission, are well‐studied and published. In contrast, studies related to the methodology implemented to characterize the mineralogy of the returned samples are scarcer and focused on biosignature detection. This work presents a non‐destructive analytical methodology based on Raman microscopy (single point and imaging), micro‐energy dispersive X‐ray fluorescence imaging analysis, and scanning electron microscopy coupled to energy dispersive spectroscopy that could be used as a first analytical characterization for the Martian samples that will be returned to the Earth in the upcoming MSR mission, before any destructive analysis. The analytical methodology has been tested on a fragment of the Northwest Africa 1950 Martian meteorite, which gives us a mineralogical characterization of the meteorite. This methodology also allowed to define several chemical reactions taking place in some of the mineral phases (olivines and ilmenite) of the meteorite. In addition to the geochemical characterization of the samples, the fact that this methodology allows to assess the chemical transformations in several minerals gives important clues for describing mineral processes and geological evolution that took place on Mars. This work also shows the advantages and disadvantages that each of the techniques employed has when performing a mineralogical characterization, the information that each one can provide and the importance of combining them.

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Thermal analysis of synthetic reevesite and cobalt substituted reevesite (Ni,Co)6Fe2(OH)16(CO3) · 4H2O

Bakon

Palmer

Frost

2009

J Therm Anal Calorim

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Shock-induced transformation of olivine to a new metastable (Mg,Fe)2SiO4 polymorph in Martian meteorites

Abstract: Shock-induced transformation of olivine to a new metastable (M g, F e) 2 SiO 4 polymorph in

Cited by 39 publications

References 31 publications

Shock and thermal annealing history of the ALH 77005 Martian meteorite: a micro-Raman spectroscopical investigation

Shock and thermal annealing history of the ALH 77005 Martian meteorite: a micro-Raman spectroscopical investigation

Development of non‐destructive analytical strategies based on Raman spectroscopy and complementary techniques for Mars Sample Return tested on Northwest Africa 1950 Martian meteorite

Thermal analysis of synthetic reevesite and cobalt substituted reevesite (Ni,Co)6Fe2(OH)16(CO3) · 4H2O

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