Zum Hauptinhalt springen
Artikel
Lizenziert
Nicht lizenziert Erfordert eine Authentifizierung

In-situ high-temperature emissivity spectra and thermal expansion of C2/c pyroxenes: Implications for the surface of Mercury

  • EMAIL logo , , , , , , und
Veröffentlicht/Copyright: 23. April 2014
Veröffentlichen auch Sie bei De Gruyter Brill
Informationen für Autor*innen
American Mineralogist
Aus der Zeitschrift American Mineralogist Band 99 Heft 4

Abstract

This work was carried out within the framework of the European Space Agency and Japanese Aerospace Exploration Agency BepiColombo space mission to Mercury and intends to provide valid tools for the interpretation of spectra acquired by the MErcury Radiometer and Thermal Infrared Spectrometer (MERTIS) on board of BepiColombo.

Two C2/c augitic pyroxenes, with different Mg/Fe ratios and constant Ca contents, were investigated by in situ high-temperature thermal infrared spectroscopy and in situ high-temperature single-crystal X-ray diffraction up to temperatures of about 750 and 770 K, respectively.

The emissivity spectra of the two samples show similar band center shifts of the main three bands toward lower wavenumbers with increasing temperature. In detail, with increasing temperature bands 1 and 2 of both samples show a much stronger shift with respect to band 3, which remains almost unchanged. Our results indicate that the center positions of bands 1 and 2 are strong functions of the temperature, whereas the center position of band 3 is a strong function of the Mg# [with Mg# = Mg/ (Mg + Fe2+) atomic ratio].

The analysis of the thermal behavior gives similar thermal expansion volume coefficients, αV, for the Mg-rich and Fe-rich samples, with αV = 2.72(8) and 2.72(7) × 10-5 K-1, respectively, using the Berman (1988) equation. This correspondence totally explains the band center shifts similarity between the two samples.

Our data suggest that MERTIS spectra will be able to provide indications of C2/c augitic pyroxene Mg# and will allow a correct interpretation that is independent on the spectra acquisition temperature.

Keywords : High temperature; TIR emissivity; thermal expansion; clinopyroxenes; Mercury
Published Online: 2014-4-23
Published in Print: 2014-4-1

© 2014 by Walter de Gruyter Berlin/Boston

Artikel in diesem Heft

  1. New data on lunar magmatic processes
  2. Thermodynamic approach provides insights into the aging process of biological apatite
  3. Effects of chemical composition and temperature on transport properties of silica-rich glasses and melts
  4. Speciation of and D/H partitioning between fluids and melts in silicate-D-O-H-C-N systems determined in-situ at upper mantle temperatures, pressures, and redox conditions
  5. Effect of oxalate and pH on chrysotile dissolution at 25 °C: An experimental study
  6. Gabbroic Shergottite Northwest Africa 6963: An intrusive sample of Mars
  7. Césarferreiraite, Fe2+Fe23+(AsO4)2(OH)2·8H2O, from Eduardo mine, Conselheiro Pena, Minas Gerais, Brazil: Second arsenate in the laueite mineral group
  8. Atomic structure and formation mechanism of (101) rutile twins from Diamantina (Brazil)
  9. Mathesiusite, K5(UO2)4(SO4)4(VO5)(H2O)4, a new uranyl vanadate-sulfate from Jáchymov, Czech Republic
  10. Comparison of metal enrichment in pyrite framboids from a metal-enriched and metal-poor estuary
  11. Chemistry of bone mineral, based on the hypermineralized rostrum of the beaked whale Mesoplodon densirostris
  12. Allendeite (Sc4Zr3O12) and hexamolybdenum (Mo,Ru,Fe), two new minerals from an ultrarefractory inclusion from the Allende meteorite
  13. Hutcheonite, Ca3Ti2(SiAl2)O12, a new garnet mineral from the Allende meteorite: An alteration phase in a Ca-Al-rich inclusion
  14. Infrared absorption spectroscopy of SiO2-moganite
  15. Kaolinite transformation into dickite during burial diagenesis
  16. Effect of clays and metal containers in retaining Sm3+ and ZrO2+ and the process of reversibility
  17. Solid solutions and phase transitions in (Ca,M2+)M2+Si2O6 pyroxenes (M2+ = Co, Fe, Mg)
  18. Further complexities of the 10 Å phase revealed by infrared spectroscopy and X-ray diffraction
  19. Solid phases of FeSi to 47 GPa and 2800 K: New data
  20. In-situ infrared spectra of hydroxyl in wadsleyite and ringwoodite at high pressure and high temperature
  21. Experimental and infrared characterization of the miscibility gap along the tremoliteglaucophane join
  22. A calorimetric and thermodynamic investigation of the synthetic analogs of cobaltomenite, CoSeO3·2H2O, and ahlfeldite, NiSeO3·2H2O
  23. Arsenate partitioning from ferrihydrite to hematite: Spectroscopic evidence
  24. Pressure-induced phase transitions in coesite
  25. Qingsongite, natural cubic boron nitride: The first boron mineral from the Earth’s mantle
  26. Phase relations in the system FeCO3-CaCO3 at 6 GPa and 900–1700 °C and its relation to the system CaCO3-FeCO3-MgCO3
  27. In-situ high-temperature emissivity spectra and thermal expansion of C2/c pyroxenes: Implications for the surface of Mercury
  28. Thallium geochemistry in the metamorphic Lengenbach sulfide deposit, Switzerland: Thallium-isotope fractionation in a sulfide melt
  29. Fluorowardite, NaAl3(PO4)2(OH)2F2·2H2O, the fluorine analog of wardite from the Silver Coin mine, Valmy, Nevada
  30. Correianevesite, Fe2+Mn22+(PO4)2·3H2O, a new reddingite-group mineral from the Cigana mine, Conselheiro Pena, Minas Gerais, Brazil
  31. Structural complexity of lead silicates: Crystal structure of Pb21[Si7O22]2[Si4O13] and its comparison to hyttsjöite
  32. A high-resolution powder neutron diffraction study of the crystal structure of neighborite (NaMgF3) between 9 and 440 K
  33. Geothermometric study of Cr-spinels of peridotite mantle xenoliths from northern Victoria Land (Antarctica)
  34. Crystal chemistry of the ulvöspinel-qandilite series
  35. Quantitative models linking igneous amphibole composition with magma Cl and OH content
  36. Chromium solubility in perovskite at high pressure: The structure of (Mg1–xCrx)(Si1–xCrx)O3 (with x = 0.07) synthesized at 23 GPa and 1600 °C
  37. New Mineral Names
  38. Errata
https://doi.org/10.2138/am.2014.4698
Schlagwörter für diesen Artikel
High temperature; TIR emissivity; thermal expansion; clinopyroxenes; Mercury

Artikel in diesem Heft

  1. New data on lunar magmatic processes
  2. Thermodynamic approach provides insights into the aging process of biological apatite
  3. Effects of chemical composition and temperature on transport properties of silica-rich glasses and melts
  4. Speciation of and D/H partitioning between fluids and melts in silicate-D-O-H-C-N systems determined in-situ at upper mantle temperatures, pressures, and redox conditions
  5. Effect of oxalate and pH on chrysotile dissolution at 25 °C: An experimental study
  6. Gabbroic Shergottite Northwest Africa 6963: An intrusive sample of Mars
  7. Césarferreiraite, Fe2+Fe23+(AsO4)2(OH)2·8H2O, from Eduardo mine, Conselheiro Pena, Minas Gerais, Brazil: Second arsenate in the laueite mineral group
  8. Atomic structure and formation mechanism of (101) rutile twins from Diamantina (Brazil)
  9. Mathesiusite, K5(UO2)4(SO4)4(VO5)(H2O)4, a new uranyl vanadate-sulfate from Jáchymov, Czech Republic
  10. Comparison of metal enrichment in pyrite framboids from a metal-enriched and metal-poor estuary
  11. Chemistry of bone mineral, based on the hypermineralized rostrum of the beaked whale Mesoplodon densirostris
  12. Allendeite (Sc4Zr3O12) and hexamolybdenum (Mo,Ru,Fe), two new minerals from an ultrarefractory inclusion from the Allende meteorite
  13. Hutcheonite, Ca3Ti2(SiAl2)O12, a new garnet mineral from the Allende meteorite: An alteration phase in a Ca-Al-rich inclusion
  14. Infrared absorption spectroscopy of SiO2-moganite
  15. Kaolinite transformation into dickite during burial diagenesis
  16. Effect of clays and metal containers in retaining Sm3+ and ZrO2+ and the process of reversibility
  17. Solid solutions and phase transitions in (Ca,M2+)M2+Si2O6 pyroxenes (M2+ = Co, Fe, Mg)
  18. Further complexities of the 10 Å phase revealed by infrared spectroscopy and X-ray diffraction
  19. Solid phases of FeSi to 47 GPa and 2800 K: New data
  20. In-situ infrared spectra of hydroxyl in wadsleyite and ringwoodite at high pressure and high temperature
  21. Experimental and infrared characterization of the miscibility gap along the tremoliteglaucophane join
  22. A calorimetric and thermodynamic investigation of the synthetic analogs of cobaltomenite, CoSeO3·2H2O, and ahlfeldite, NiSeO3·2H2O
  23. Arsenate partitioning from ferrihydrite to hematite: Spectroscopic evidence
  24. Pressure-induced phase transitions in coesite
  25. Qingsongite, natural cubic boron nitride: The first boron mineral from the Earth’s mantle
  26. Phase relations in the system FeCO3-CaCO3 at 6 GPa and 900–1700 °C and its relation to the system CaCO3-FeCO3-MgCO3
  27. In-situ high-temperature emissivity spectra and thermal expansion of C2/c pyroxenes: Implications for the surface of Mercury
  28. Thallium geochemistry in the metamorphic Lengenbach sulfide deposit, Switzerland: Thallium-isotope fractionation in a sulfide melt
  29. Fluorowardite, NaAl3(PO4)2(OH)2F2·2H2O, the fluorine analog of wardite from the Silver Coin mine, Valmy, Nevada
  30. Correianevesite, Fe2+Mn22+(PO4)2·3H2O, a new reddingite-group mineral from the Cigana mine, Conselheiro Pena, Minas Gerais, Brazil
  31. Structural complexity of lead silicates: Crystal structure of Pb21[Si7O22]2[Si4O13] and its comparison to hyttsjöite
  32. A high-resolution powder neutron diffraction study of the crystal structure of neighborite (NaMgF3) between 9 and 440 K
  33. Geothermometric study of Cr-spinels of peridotite mantle xenoliths from northern Victoria Land (Antarctica)
  34. Crystal chemistry of the ulvöspinel-qandilite series
  35. Quantitative models linking igneous amphibole composition with magma Cl and OH content
  36. Chromium solubility in perovskite at high pressure: The structure of (Mg1–xCrx)(Si1–xCrx)O3 (with x = 0.07) synthesized at 23 GPa and 1600 °C
  37. New Mineral Names
  38. Errata
Heruntergeladen am 26.4.2026 von https://www.degruyterbrill.com/document/doi/10.2138/am.2014.4698/html?lang=de
Button zum nach oben scrollen