In-situ Raman spectroscopy of quartz: A pressure sensor for hydrothermal diamond-anvil cell experiments at elevated temperatures

Schmidt, Christian; Ziemann, Martin A.

doi:10.2138/am-2000-11-1216

Cited by 241 publications

(233 citation statements)

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“…Hence, it is a potential Raman geobarometer. The effect of pressure and temperature on quartz Raman bands positions is experimentally well known (Hemley, 1987;Schmidt & Ziemann, 2000). A quartz geobarometer has been calibrated recently on metamorphic quartz from quartz-eclogite, epidote-amphibolite, and amphibolitefacies rocks (Enami et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Is quartz a potential indicator of ultrahigh-pressure metamorphism? Laser Raman spectroscopy of quartz inclusions in ultrahigh-pressure garnets

Korsakov¹,

Perraki²,

Zhukov³

et al. 2010

ejm

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Laser Raman microspectroscopy was applied to quartz inclusions in coesite-and diamond-grade metapelites from the Kokchetav ultrahigh-pressure metamorphic (UHPM) complex, Northern Kazakhstan, and diamond-grade eclogite xenoliths from the Mir kimberlite pipe, Yakutiya, Russia to assess the quantitative correlation between the Raman frequency shift and metamorphic pressure. Quartz crystals sealed in garnets have a higher frequency shift than those in the matrix. Residual pressures retained by quartz inclusions depend on the metamorphic history of the garnet host. The Raman frequency shift of quartz inclusions in garnet from coesite-grade and diamond-grade metamorphic rocks shows no systematic change with increasing peak metamorphic pressures. The highest shifts of the main Raman bands of quartz were documented for monocrystalline quartz inclusions in garnets from a diamond-grade eclogite xenolith. Calibrations based on experimental work suggest that the measured Raman frequency shifts signify residual pressures of 0.1-0.6 GPa for quartz inclusions from coesite-grade metapelites from Kokchetav, 0.1-0.3 GPa for quartz inclusions from diamond-grade metapelites from Kokchetav, and 1.0-1.2 GPa for quartz inclusions from the diamondgrade eclogite xenoliths from the Mir kimberlite pipe. Normal stresses and internal (residual) pressures of quartz inclusions in garnet were numerically simulated with a 3-shell elastic model. Estimated values of residual pressures are inconsistent with the residual pressures estimated from the frequency shifts. Residual pressure slightly depends on P-T conditions at peak metamorphic stage. Laser Raman microspectroscopic analysis of quartz is a potentially powerful method for recovering an ultrahigh pressure metamorphic event. Monocrystalline quartz inclusions yielding a residual pressure greater than 2.5 GPa might indicate the presence of a former coesite.

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Section: Introductionmentioning

confidence: 99%

Is quartz a potential indicator of ultrahigh-pressure metamorphism? Laser Raman spectroscopy of quartz inclusions in ultrahigh-pressure garnets

Korsakov¹,

Perraki²,

Zhukov³

et al. 2010

ejm

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Section: Introductionmentioning

confidence: 99%

“…Moreover, changes in frequency and linewidth of the 206 and 464 cm −1 A1 Raman modes of quartz have been recently proposed to be used as a pressure sensor [9]. The most intense coesite band at 521 cm −1 (at ambient pressure) has a strong, characteristic pressure shift of 2.9 ± 0.1 cm −1 /GPa [8], while the most intense band of quartz at 464 cm −1 (at ambient pressure) is used for pressure measurements in the present study (characteristic pressure shift of 9 ± 0.5 cm −1 /GPa [9]). Applying these geobarometers for "monomineralic" coesite inclusions (following the definition of Parkinson [6]) in refractory minerals such as diamond, garnet, zircons and kyanite from different ultrahigh-pressure metamorphic (UHPM) complexes [5,6,10] and some kimberlitic diamonds [7] reveals several particular features, which can be summarized as follow.…”

Section: Introductionmentioning

confidence: 99%

“…Both coesite and quartz remain under high pressure as reflected on the shift of their Raman bands. The pressure was determined from the upshift of the dominant coesite and quartz band according to P(GPa) = (ν − 521)/2.9 [8] and P(GPa) = (ν − 464)/9 [9], respectively, and ν is the frequency value for the shifted Raman band. Differences in pressure value for quartz (≤1.5 GPa) and coesite (≤2.4 GPa) within the same inclusions contradict the elastic models proposed by Zhang [11].…”

Section: Introductionmentioning

confidence: 99%

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Raman mapping of coesite inclusions in garnet from the Kokchetav Massif (Northern Kazakhstan)

Korsakov

Hutsebaut

Theunissen

et al. 2007

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Coesite inclusions occur in a wide range of lithologies and coesite is therefore a powerful ultrahigh-pressure (UHP) indicator. The transformation of coesite to quartz is evidenced by three optically well identifiable characteristics (e.g. palisade textures, radial crack patterns, polycrystalline quartz pseudomorphs). Under overpressure monomineralic coesite (on an optical basis), lacking the above transformation characteristics may survive. Raman micro-spectroscopy was applied on monomineralic coesite inclusions in garnet porphyroblasts from diamond-bearing garnet-clinozoisite-biotite gneisses of the Barchi-Kol area (Kokchetav Massif, Northern Kazakhstan). These coesite inclusions are euhedral and display a characteristic anisotropic hallo. However, Raman maps and separate spectra of these inclusions display shifted bands for coesite and quartz. Microscopically undetectable, quartz shows on the Raman map as a thin shell around coesite inclusion. Shift of the main coesite band allows to estimate their overpressure: coesite inclusions record 0-2.4 GPa in garnet and zircon. The quartz shell remains under lower pressure 0-1.6 GPa. The possible application of coesite and quartz Raman geobarometers for UHP metamorphic rocks is discussed.

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“…Colomban (2000Colomban ( , 2001 has described this complex picture in an elegant way, invoking several types of chain, sheet and three-dimensional structures labelled Q 0 -Q 4 , which can be assigned as follows: Q 0 , representing monomer SiO 4 units, with bands in the region 850-800 cm −1 ; Q 1 , representing Si 2 O 7 groups, with a band near 950 cm −1 ; Q 2 , silicate chains with bands in the region of 1100-1050 cm −1 ; Q 3 , silicate sheets with a band near 1100 cm −1 ; and Q 4 , representing SiO 2 and tectosilicates with a band in the range of 1250-1150 cm −1 . Additionally, spectral features may arise from crystalline quartz and its modifications caused by pressure or temperature extremes, for which the parent Si=O band occurs at 465 cm −1 (Jayaraman et al 1987;McMillan et al 1992;Schmidt & Ziemann 2000;Enami et al 2007). Figure 2 presents a typical spectrum collected from a glass bubble within a fulgurite specimen.…”

Section: Resultsmentioning

confidence: 99%

A Raman spectroscopic study of a fulgurite

Carter

Hargreaves

Kee

et al. 2010

Phil. Trans. R. Soc. A.

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A Raman microspectroscopic study of several fulgurites has been undertaken. A fulgurite is an amorphous mineraloid, a superheated glassy solid that is formed when a lightning bolt hits a sandy or rocky ground and thermal energy is transferred. The Raman spectra revealed several forms of crystalline and fused silica and also the presence of polyaromatic hydrocarbons found in an interfacial zone of a glass bubble. This, together with the presence of anatase, a low-temperature polymorph of TiO 2 , suggested that some regions of the fulgurite specimen were not subjected to temperatures of 1800 • C, which are attained when lightning hits the surface of sand or a rock.

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In-situ Raman spectroscopy of quartz: A pressure sensor for hydrothermal diamond-anvil cell experiments at elevated temperatures

Cited by 241 publications

References 23 publications

Is quartz a potential indicator of ultrahigh-pressure metamorphism? Laser Raman spectroscopy of quartz inclusions in ultrahigh-pressure garnets

Is quartz a potential indicator of ultrahigh-pressure metamorphism? Laser Raman spectroscopy of quartz inclusions in ultrahigh-pressure garnets

Raman mapping of coesite inclusions in garnet from the Kokchetav Massif (Northern Kazakhstan)

A Raman spectroscopic study of a fulgurite

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