Startseite Naturwissenschaften Crystal chemistry and high-temperature vibrational spectra of humite and norbergite: Fluorine and titanium in humite-group minerals
Artikel
Lizenziert
Nicht lizenziert Erfordert eine Authentifizierung

Crystal chemistry and high-temperature vibrational spectra of humite and norbergite: Fluorine and titanium in humite-group minerals

  • Dan Liu , Sarah M. Hirner , Joseph R. Smyth , Junfeng Zhang , Xiaochao Shi , Xiang Wang , Xi Zhu und Yu Ye EMAIL logo
Veröffentlicht/Copyright: 3. Juli 2021
Veröffentlichen auch Sie bei De Gruyter Brill
Informationen für Autor*innen
American Mineralogist
Aus der Zeitschrift American Mineralogist Band 106 Heft 7

Abstract

The humite-group minerals along the brucite-olivine join may be important dense hydrous magnesium silicate (DHMS) phases in the subducting slab. Fluorine and titanium can be incorporated into their structures through the substitutions (OH)– = F– and Mg2+ + 2(OH)– = Ti4+ + 2O2–. These substitutions have significant effects on the hydrogen bonding behavior in the structures. Structure refinements and in situ high-temperature Raman and Fourier transform infrared (FTIR) measurements were conducted on natural humite and norbergite crystals. Both minerals crystallize in space group Pbnm, and their isobaric Grüneisen parameters for the lattice and SiO4 internal vibrations are compared with those of chondrodite, clinohumite, brucite, and forsterite. For the humite-group minerals, the OH-stretching modes above 3450 cm–1 are affected by local H-H repulsion, whereas the behavior of those below 3450 cm–1 can be explained by F– and Ti4+ substitutions, either of which may relieve the H-H repulsion effect. The Raman-active OH bands below 3450 cm–1 are affected by Ti4+ substitution, while the IR-active bands can be affected by either F– or Ti4+ substitutions. Based on an analysis of the high-T Raman and FTIR spectra, the OH vibrations above and below 3450 cm–1 behave differently as a function of temperature, and similar behavior has also been observed for other dense hydrous silicate phases in the hydrous peridotite system. Hence, the lengths of the oxygen-oxygen edges in MgO6 octahedra where protonation can occur become similar to each other at elevated temperatures. This may provide an atomistic explanation for the electrical conductivity properties of DHMS phases at high temperatures.

Keywords: Humite-group minerals; Raman spectroscopy; FTIR spectroscopy; high temperature; OH-stretching mode; DHMS phases

Acknowledgments and Funding

This study was supported by three grants from the National Natural Science Foundation of China (Grant Nos. 41590621 and 41672041), the U. S. National Science Foundation (Grant EAR14-16979 to J.R.S.), and the Fundamental Research Funds for National Universities, China University of Geosciences (Wuhan). The single-crystal X‑ray diffraction was carried out at the University of Colorado, and the Raman and FTIR spectra were collected at China University of Geosciences (Wuhan).

References cited

Bernini, D., Wiedenbeck, M., Dolejš, D., and Keppler, H. (2013) Partitioning of halogens between mantle minerals and aqueous fluids: implications for the fluid flow regime in subduction zones. Contributions to Mineralogy and Petrology, 165, 117–128.10.1007/s00410-012-0799-4Suche in Google Scholar

Berry, A.J., and James, M. (2001) Refinement of hydrogen positions in synthetic hydroxyl-clinohumite by powder neutron diffraction. American Mineralogist, 86, 181–184.10.2138/am-2001-0120Suche in Google Scholar

Berry, A.J., Hermann, J., O’Neill, H.St.C., and Foran, G.J. (2005) Fingerprinting the water site in mantle olivine. Geology, 33, 869–872.10.1130/G21759.1Suche in Google Scholar

Buddington, A.F. (1966) The Precambrian magnetite deposits of New York and New Jersey. Economic Geology, 61, 484–510.10.2113/gsecongeo.61.3.484Suche in Google Scholar

Cámara, F. (1997) New data on the structure of norbergite: Location of hydrogen by X‑ray diffraction. Canadian Mineralogist, 35, 1523–1530.Suche in Google Scholar

Chen, S., Guo, X., Yoshino, T., Jin, Z., and Li, P. (2018) Dehydration of phengite inferred by electrical conductivity measurements: Implication for the high conductivity anomalies relevant to the subduction zones. Geology, 46, 11–14.10.1130/G39716.1Suche in Google Scholar

Cromer, D.T., and Mann, J.B. (1968) X‑ray scattering factors computed from numerical Hartree-Fock wave functions. Acta Crystallographica, A24, 321–324.10.2172/4555098Suche in Google Scholar

Cynn, H., Hofmeister, A.M., Burnley, P.C., and Navrotsky, A. (1996) Thermodynamic properties and hydrogen bonding speciation from vibrational spectra of dense hydrous magnesium silicates. Physics and Chemistry of Minerals, 23, 361–376.10.1007/BF00199502Suche in Google Scholar

Farrugia, L.J. (2012) WinGX and ORTEP for Windows: an update. Journal of Applied Crystallography, 45, 849–854.10.1107/S0021889812029111Suche in Google Scholar

Foley, S. (1991) High-pressure stability of the fluor- and hydroxy-endmembers of pargasite and K-richterite. Geochimica et Cosmochimica Acta, 55, 2689–2694.10.1016/0016-7037(91)90386-JSuche in Google Scholar

Friedrich, A., Lager, G.A., Kunz, M., Chakoumakos, B.C., Smyth, J.R., and Schultz, A.J. (2001) Temperature-dependent single-crystal neutron diffraction study of natural chondrodite and clinohumites. American Mineralogist, 86, 981–989.10.2138/am-2001-8-904Suche in Google Scholar

Friedrich, A., Lager, G.A., Ulmer, P., Kunz, M., and Marshall, W.G. (2002) High-pressure single-crystal X‑ray and powder neutron study of F, OH/OD-chondrodite: Compressibility, structure, and hydrogen bonding. American Mineralogist, 87, 931–939.10.2138/am-2002-0716Suche in Google Scholar

Frost, R.L., Palmer, S.J., Bouzaid, J.M., and Jagannadha Reddy, B. (2007) A Raman spectroscopic study of humite minerals. Journal of Raman Spectroscopy, 38, 68–77.10.1002/jrs.1601Suche in Google Scholar

Fujino, K., and Takéuchi, Y. (1978) Crystal chemistry of titanian chondrodite and titanian clinohumite of high-pressure origin. American Mineralogist, 63, 535–543.Suche in Google Scholar

Gibbs, G.V., and Ribbe, P.H. (1969) The crystal structures of the humite minerals: I. Norbergite. American Mineralogist, 54, 376–390.Suche in Google Scholar

Gibbs, G.V., Ribbe, P.H., and Anderson, C.P. (1970) The crystal structures of the humite minerals. II. Chondrodite. American Mineralogist, 55, 1182–1194.Suche in Google Scholar

Gillet, P., Richet, P., Guyot, F., and Fiquet, G. (1991) High-temperature thermodynamic properties of forsterite. Journal of Geophysical Research, 96, 11,805–11,816.10.1029/91JB00680Suche in Google Scholar

Grützner, T., Klemme, S., Rohrbach, A., Gervasoni, F., and Berndt, J. (2017a) The role of F-clinohumite in volatile recycling processes in subduction zones. Geology, 45, 443–446.10.1130/G38788.1Suche in Google Scholar

Grützner, T., Kohn, S.C., Bromiley, D.W., Rohrbach, A., Berndt, J., and Klemme, S. (2017b) The storage capacity of fluorine in olivine and pyroxene under upper mantle conditions. Geochimica et Cosmochimica Acta, 208, 160–170.10.1016/j.gca.2017.03.043Suche in Google Scholar

Guo, X., and Yoshino, T. (2013) Electrical conductivity of dense hydrous magnesium silicates with implication for conductivity in the stagnant slab. Earth and Planetary Science Letters, 369-370, 239–247.10.1016/j.epsl.2013.03.026Suche in Google Scholar

Guo, X., and Yoshino, T. (2014) Pressure-induced enhancement of proton conduction in brucite. Geophysical Research Letters, 41, 813–819.10.1002/2013GL058627Suche in Google Scholar

Guo, X., Yoshino, T., and Katayama, I. (2011) Electrical conductivity anisotropy of deformed talc rocks and serpentinites at 3 GPa. Physics Earth and Planetary Interiors, 188, 69–81.10.1016/j.pepi.2011.06.012Suche in Google Scholar

Hughes, L., and Pawley, A. (2019) Fluorine partitioning between humite-group minerals and aqueous fluids: implications for volatile storage in the upper mantle. Contributions to Mineralogy and Petrology, 174, 78, doi: 10.1007/s00410-019-1614-2.10.1007/s00410-019-1614-2Suche in Google Scholar

Jones, N.W., Ribbe, P.H., and Gibbs, G.V. (1969) Crystal chemistry of the humite minerals. American Mineralogist, 54, 391–411.Suche in Google Scholar

Kanzaki, M. (1991) Stability of hydrous magnesium silicates in the mantle transition zone. Physics of the Earth and Planetary Interiors, 66, 307–312.10.1016/0031-9201(91)90085-VSuche in Google Scholar

Kanzaki, M. (2016) Hydrogen distribution in chondrodite: a first-principles calculation. Journal of Mineralogical and Petrological Sciences, 111, 425–430.10.2465/jmps.160717Suche in Google Scholar

Kitamura, M., Kondoh, S., Morimoto, N., Miller, G.H., Rossman, G.R., and Putnis, A. (1987) Planar OH-bearing effects in mantle olivine. Nature, 328, 143–145.10.1038/328143a0Suche in Google Scholar

Klemme, S., and Stalder, R. (2018) Halogens in the Earth’s mantle: What we know and what we don’t. In D.E. Harlov and L. Aranovich, Eds., The Role of Hydrogens in Terrestrial and Extraterrestrial Geochemical Processes: Surface, crust, and mantle, p. 847–869. Springer.10.1007/978-3-319-61667-4_14Suche in Google Scholar

Koga, K.T., Garrido, C.J., Padrón-Navarta, J.A., Sánchez-Vizcaíno, V.L., and Gómez-Pugnaire, M.T. (2014) FTIR and Raman spectroscopy characterization of fluorine-bearing titanian clinohumite in antigorite serpentinite and chlorite harzburgite. Earth Planets and Space, 66, 60, doi: 10.1186/1880-5981-66-60.10.1186/1880-5981-66-60Suche in Google Scholar

Kuribayashi, T., Kagi, H., Tanaka, M., Akizuki, M., and Kudoh, Y. (2004) High-pressure single-crystal X‑ray diffraction and FT-IR observation of natural chondrodite and synthetic OH-chondrodite. Journal of Mineralogical and Petrological Sciences, 99, 118–129.10.2465/jmps.99.118Suche in Google Scholar

Kuribayashi, T., Tanaka, M., and Kudoh, Y. (2008) Synchrotron, X‑ray analysis of norbergite, Mg2.98Fe0.001Ti0.02Si0.99O4(OH)0.31F1.69 structure at high pressure up to 8.2 GPa. Physics and Chemistry of Minerals, 35, 559–568.10.1007/s00269-008-0248-0Suche in Google Scholar

Kurosawa, M., Yurimoto, H., and Sueno, S. (1997) Patterns in the hydrogen and trace element compositions of mantle olivines. Physics and Chemistry of Minerals, 24, 385–395.10.1007/s002690050052Suche in Google Scholar

Li, Y., Jiang, H., and Yang, X. (2017) Fluorine follows water: Effect on electrical conductivity of silicate minerals by experimental constraints from phlogopite. Geochimica et Cosmochimica Acta, 217, 16–27.10.1016/j.gca.2017.08.020Suche in Google Scholar

Libowitzky, E. (1999) Correlation of O-H stretching frequencies and O-H···O hydrogen bond lengths in minerals. Monatshefte für Chemie, 130, 1047–1059.10.1007/978-3-7091-6419-8_7Suche in Google Scholar

Lin, C.C., Liu, L.G., and Irifune, T. (1999) High-pressure Raman spectroscopic study of chondrodite. Physics and Chemistry of Minerals, 26, 226–233.10.1007/s002690050181Suche in Google Scholar

Lin, C.C., Liu, L.G., Mernagh, T.P., and Irifune, T. (2000) Raman spectroscopic study of hydroxyl-clinohumite at various pressures and temperatures. Physics and Chemistry of Minerals, 27, 320–331.10.1007/s002690050261Suche in Google Scholar

Liu, L.G., Mernagh, T.P., Lin, C.C., and Irifune, T. (1997a) Raman spectra of phase E at various pressures and temperatures with geophysical implications. Earth and Planetary Science Letters, 149, 57–65.10.1016/S0012-821X(97)00063-0Suche in Google Scholar

Liu, L.G., Lin, C.C., Mernagh, T.P., and Irifune, T. (1997b) Raman spectra of phase A at various pressures and temperatures. Journal of Physics and Chemistry of Solids, 58, 2023–2030.10.1016/S0022-3697(97)00121-2Suche in Google Scholar

Liu, L.G., Lin, C.C., Mernagh, T.P., and Irifune, T. (1998) Raman spectra of phase B at various pressures and temperatures. Journal of Physics and Chemistry of Solids, 59, 871–877.10.1016/S0022-3697(98)00029-8Suche in Google Scholar

Liu, L.G., Lin, C.C., and Mernagh, T.P. (1999) Raman spectra of norbergite at various pressures and temperatures. European Journal of Mineralogy, 11, 1011–1021.10.1127/ejm/11/6/1011Suche in Google Scholar

Liu, L.G., Lin, C.C., Mernagh, T.P., and Inoue, T. (2002) Raman spectra of phase C (superhydrous phase B) at various pressures and temperatures. European Journal of Mineralogy, 14, 15–23.10.1127/0935-1221/2002/0014-0015Suche in Google Scholar

Liu, D., Pang, Y.Y., Ye, Y., Jin, Z.M., Smyth, J.R., Yang, Y., Zhang, Z.M., and Wang, Z.P. (2019a) In-situ high-temperature vibrational spectra for synthetic and natural clinohumite: Implications for dense hydrous magnesium silicates in subduction zones. American Mineralogist, 104, 53–63.10.2138/am-2019-6604Suche in Google Scholar

Liu, D., Wang, S., Smyth, J.R., Zhang, J., Wang, X., Zhu, X., and Ye, Y. (2019b) In situ infrared spectra for hydrous forsterite up to 1243 K: Hydration effect on thermodynamic properties. Minerals, 9, 512, doi: 10.3390/min9090512.10.3390/min9090512Suche in Google Scholar

Matsyuk, S.S., and Langer, K. (2004) Hydroxyl in olivines from mantle xenoliths in kimberlites of the Siberian platform. Contributions to Mineralogy and Petrology, 147, 413–437.10.1007/s00410-003-0541-3Suche in Google Scholar

McDonough, W.F., and Sun, S. (1995) The composition of the Earth. Chemical Geology, 120, 223–253.10.1016/S0074-6142(01)80077-2Suche in Google Scholar

Mernagh, T.P., Liu, L.G., and Lin, C.C. (1999) Raman spectra of chondrodite at various temperatures. Journal of Raman Spectroscopy, 30, 963–969.10.1002/(SICI)1097-4555(199910)30:10<963::AID-JRS484>3.0.CO;2-DSuche in Google Scholar

Miller, G.H., Rossman, G.R., and Harlow, G.E. (1987) The natural occurrence of hydroxide in olivine. Physics and Chemistry of Minerals, 14, 461–472.10.1007/BF00628824Suche in Google Scholar

Mosenfelder, J.L., and Rossman, G.R. (2013a) Analysis of hydrogen and fluorine in pyroxenes: I. Orthopyroxene. American Mineralogist, 98, 1026–1041.10.2138/am.2013.4291Suche in Google Scholar

Mosenfelder, J.L., and Rossman, G.R. (2013b) Analysis of hydrogen and fluorine in pyroxenes: II. Clinopyroxene. American Mineralogist, 98, 1042–1054.10.2138/am.2013.4413Suche in Google Scholar

Okada, T., Narita, T., Nagai, T., and Yamanaka, T. (2008) Comparative Raman spectroscopic study on ilmenite-type MgSiO3 (akimotoite), MgGeO3 and MgTiO3 (geikielite) at high temperatures and high pressures. American Mineralogist, 93, 39–47.10.2138/am.2008.2490Suche in Google Scholar

Palmer, S., Jagannadha Reddy, B., and Frost, R.L. (2007) Application of UV–Vis, near-infrared and mid-infrared spectroscopy to the study of Mn-bearing humites. Polyhedron, 26, 524–533.10.1016/j.poly.2006.09.038Suche in Google Scholar

Prasad, P.S.R., and Sarma, L.P. (2004) A near-infrared spectroscopic study of hydroxyl in natural chondrodite. American Mineralogist, 89, 1056–1060.10.2138/am-2004-0717Suche in Google Scholar

Qin, F., Wu, X., Zhang, D., Qin, S., and Jacobsen, S.D. (2017) Thermal equation of state of natural Ti-bearing clinohumite. Journal of Geophysical Research: Solid Earth, 122, 8943–8951.10.1002/2017JB014827Suche in Google Scholar

Ribbe, P.H. (1979) Titanium, fluorine, and hydroxyl in the humite minerals. American Mineralogist, 64, 1027–1035.Suche in Google Scholar

Ribbe, P.H., and Gibbs, G.V. (1971) Crystal structures of the humite minerals: III. Mg/Fe ordering in humite and its relation to other ferromagnesian silicates. American Mineralogist, 56, 1155–1173.Suche in Google Scholar

Robinson, K., Gibbs, G.V., and Ribbe, P.H. (1973) The crystal structure of the humite minerals. IV. Clinohumite and titanoclinohumite. American Mineralogist, 58, 43–49.Suche in Google Scholar

Rywak, A.A., and Burlitch, J.M. (1996) The crystal chemistry and thermal stability of sol-gel prepared fluoride-substituted talc. Physics and Chemistry of Minerals, 23, 418–431.10.1007/BF00202028Suche in Google Scholar

Scambelluri, M., and Philippot, P. (2001) Deep fluids in subduction zones. Lithos, 55, 213–227.10.1016/S0024-4937(00)00046-3Suche in Google Scholar

Scambelluri, M., and Rampone, E. (1999) Mg-metasomatism of oceanic gabbros and its control on Ti-clinohumite formation during eclogitization. Contributions to Mineralogy and Petrology, 135, 1–17.10.1007/s004100050494Suche in Google Scholar

Shannon, R.D. (1976) Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Crystallographica, A32, 751–767.10.1107/S0567739476001551Suche in Google Scholar

Sheldrick, G.M. (2008) A short history of SHELX. Acta Crystallographica, A64, 112–122.10.1107/S0108767307043930Suche in Google Scholar

Shen, T., Hermann, J., Zhang, L., Padrón-Navarta, J.A., and Chen, J. (2014) FTIR spectroscopy of Ti-chondrodite, Ti-clinohumite, and olivine in deeply sub-ducted serpentinites and implications for the deep water cycle. Contributions to Mineralogy and Petrology, 167, 992, doi: 10.1007/s00410-014-0992-8.10.1007/s00410-014-0992-8Suche in Google Scholar

Shen, T., Hermann, J., Zhang, L., Lü, Z., Padrόn-Navarta, J.A., Xia, B., and Bader, T. (2015) UHP metamorphism documented in Ti-chondrodite- and Ti-clinohumite- bearing serpentinized ultramafic rocks from Chinese southwestern Tianshan. Journal of Petrology, 56, 1425–1458.10.1093/petrology/egv042Suche in Google Scholar

Smith, J.V., Delaney, J.S., Hervig, R.L., and Dawson, J.B. (1981) Storage of F and Cl in the upper mantle: Geochemical implications. Lithos, 14, 133–147.10.1016/0024-4937(81)90050-5Suche in Google Scholar

Smyth, J.R., Frost, D.J., Nestola, F., Holl, C.M., and Bromiley, G. (2006) Olivine hydration in the deep upper mantle: Effects of temperature and silica activity. Geophysical Research Letters, 33, L15301, doi: 10.1029/2006GL026194.10.1029/2006GL026194Suche in Google Scholar

Stalder, R., and Ulmer, P. (2001) Phase relations of a serpentine composition between 5 and 14 GPa: Significance of clinohumite and phase E as water carriers into the transition zone. Contributions to Mineralogy and Petrology, 140, 670–679.10.1007/s004100000208Suche in Google Scholar

Tokonami, M. (1965) Atomic scattering factor for O2– Acta Crystallographica, 19, 486.10.1107/S0365110X65003729Suche in Google Scholar

Trittschack, R., Grobéty, B., and Koch-Müller, M. (2012) In situ high-temperature Raman and FTIR spectroscopy of the phase transformation of lizardite. American Mineralogist, 97, 1965–1976.10.2138/am.2012.4162Suche in Google Scholar

Williams, Q. (1992) A vibrational spectroscopic study of hydrogen in high pressure mineral assemblages. In Y. Syono and M.H. Manghnani Eds., Geophysical Monograph Series, 67, 289–296. American Geophysical Union, Washington, D.C.10.1029/GM067p0289Suche in Google Scholar

Wunder, B. (1998) Equilibrium experiments in the system MgO-SiO2-H2O (MSH): Stability fields of clinohumite-OH [Mg9Si4O16(OH)2 chondrodite-OH [Mg5Si2O8(OH)2 and phase A (Mg7Si2O8(OH)6 Contributions to Mineralogy and Petrology, 132, 111–120.10.1007/s004100050410Suche in Google Scholar

Wunder, B., Medenbach, O., Daniels, P., and Schreyer, W. (1995) First synthesis of the hydroxyl end-member of humite, Mg7Si3O12(OH)2 American Mineralogist, 80, 638–640.Suche in Google Scholar

Yang, Y., Wang, Z.P., Smyth, J.R., Liu, J., and Xia, Q.K. (2015) Water effects on the anharmonic properties of forsterite. American Mineralogist, 100, 2185–2190.10.2138/am-2015-5241Suche in Google Scholar

Yang, Y., Ingrin, J., Xia, Q., and Liu, W. (2019) Nature of hydrogen defects in clinopyroxenes from room temperature up to 1000°C: Implication for the preservation of hydrogen in the upper mantle and impact on electrical conductivity. American Mineralogist, 104, 79–93.10.2138/am-2019-6661Suche in Google Scholar

Ye, Y., Smyth, J.R., Jacobsen, S.D., and Goujon, C. (2013) Crystal chemistry, thermal expansion, and Raman spectra of hydroxyl-clinohumite: Implications for water in Earth’s interior. Contributions to Mineralogy and Petrology, 165, 563–574.10.1007/s00410-012-0823-8Suche in Google Scholar

Ye, Y., Jacobsen, S.D., Mao, Z., Duffy, T.S., Hirner, S.M., and Smyth, J.R. (2015) Crystal structure, thermal expansivity, and elasticity of OH-chondrodite: Trends among dense hydrous magnesium silicates. Contributions to Mineralogy and Petrology, 169, 43, doi: 10.1007/s00410-015-1138-3.10.1007/s00410-015-1138-3Suche in Google Scholar

Zhang, M., Hui, Q., Lou, X.J., Redfern, S.A.T., Salje, E.K.H., and Tarantino, S.C. (2006) Dehydroxylation, proton migration, and structural changes in heated talc: an infrared spectroscopic study. American Mineralogist, 91, 816–825.10.2138/am.2006.1945Suche in Google Scholar

Zhu, X., Guo, X., Smyth, J.R., Ye, Y., Wang, X., and Liu, D. (2019) High-temperature vibrational spectra between Mg (OH)2 and Mg (OD)2 Anharmonic contribution to thermodynamics and D/H fractionation for brucite. Journal of Geophysical Research: Solid Earth, 124, 8267–8280.10.1029/2019JB017934Suche in Google Scholar

Received: 2020-04-02
Accepted: 2020-09-26
Published Online: 2021-07-03
Published in Print: 2021-07-27

© 2021 Walter de Gruyter GmbH, Berlin/Boston

Artikel in diesem Heft

  1. Tourmaline composition and boron isotope signature as a tracer of magmatic-hydrothermal processes
  2. Deformation and strength of mantle relevant garnets: Implications for the subduction of basaltic-rich crust
  3. Ultra-reduced phases in ophiolites cannot come from Earth’s mantle
  4. Olivine from aillikites in the Tarim large igneous province as a window into mantle metasomatism and multi-stage magma evolution
  5. Precise determination of the effect of temperature on the density of solid and liquid iron, nickel, and tin
  6. Timescales of crystal mush mobilization in the Bárðarbunga-Veiðivötn volcanic system based on olivine diffusion chronometry
  7. Chemical reactions in the Fe2SiO4-D2 system with a variable deuterium content at 7.5 GPa
  8. High-pressure syntheses and crystal structure analyses of a new low-density CaFe2O4-related and CaTi2O4-type MgAl2O4 phases
  9. Phase diagram and thermal expansion of orthopyroxene-, clinopyroxene-, and ilmenite-structured MgGeO3
  10. Mass transfer associated with chloritization in the hydrothermal alteration process of granitic pluton
  11. Nonlinear effects of hydration on high-pressure sound velocities of rhyolitic glasses
  12. Crystal chemistry and high-temperature vibrational spectra of humite and norbergite: Fluorine and titanium in humite-group minerals
  13. Exomorphism of jacobsite precipitates in bixbyite single crystals from the Thomas Range in Utah
  14. Ferropyrosmalite-bearing fluid inclusions in the North Patagonian Andes metasedimentary basement, Argentina: A record of regional metasomatism
  15. Memorial of Alden Bliss Carpenter (1936–2019)
  16. New Mineral Names
https://doi.org/10.2138/am-2021-7538
Schlagwörter für diesen Artikel
Humite-group minerals; Raman spectroscopy; FTIR spectroscopy; high temperature; OH-stretching mode; DHMS phases

Artikel in diesem Heft

  1. Tourmaline composition and boron isotope signature as a tracer of magmatic-hydrothermal processes
  2. Deformation and strength of mantle relevant garnets: Implications for the subduction of basaltic-rich crust
  3. Ultra-reduced phases in ophiolites cannot come from Earth’s mantle
  4. Olivine from aillikites in the Tarim large igneous province as a window into mantle metasomatism and multi-stage magma evolution
  5. Precise determination of the effect of temperature on the density of solid and liquid iron, nickel, and tin
  6. Timescales of crystal mush mobilization in the Bárðarbunga-Veiðivötn volcanic system based on olivine diffusion chronometry
  7. Chemical reactions in the Fe2SiO4-D2 system with a variable deuterium content at 7.5 GPa
  8. High-pressure syntheses and crystal structure analyses of a new low-density CaFe2O4-related and CaTi2O4-type MgAl2O4 phases
  9. Phase diagram and thermal expansion of orthopyroxene-, clinopyroxene-, and ilmenite-structured MgGeO3
  10. Mass transfer associated with chloritization in the hydrothermal alteration process of granitic pluton
  11. Nonlinear effects of hydration on high-pressure sound velocities of rhyolitic glasses
  12. Crystal chemistry and high-temperature vibrational spectra of humite and norbergite: Fluorine and titanium in humite-group minerals
  13. Exomorphism of jacobsite precipitates in bixbyite single crystals from the Thomas Range in Utah
  14. Ferropyrosmalite-bearing fluid inclusions in the North Patagonian Andes metasedimentary basement, Argentina: A record of regional metasomatism
  15. Memorial of Alden Bliss Carpenter (1936–2019)
  16. New Mineral Names
Jetzt anmelden und 20% sparen
Institutioneller Zugang
Wie funktioniert Authentifizierung?
Gewinner des OpenAthens UX Award 2026
Gewinner des OpenAthens UX Award 2026
Haben Sie eine Idee, wie wir unsere Website verbessern können?
Bitte schreiben Sie uns.
© 2026 De Gruyter Brill
Heruntergeladen am 6.3.2026 von https://www.degruyterbrill.com/document/doi/10.2138/am-2021-7538/html
Button zum nach oben scrollen