Home Physical Sciences Determination of molar absorptivities for infrared absorption bands of H2O in andesitic glasses
Article
Licensed
Unlicensed Requires Authentication

Determination of molar absorptivities for infrared absorption bands of H2O in andesitic glasses

  • Charles W. Mandeville EMAIL logo , James D. Webster , Malcolm J. Rutherford , Bruce E. Taylor , Adrian Timbal and Kevin Faure
Published/Copyright: March 28, 2015
Become an author with De Gruyter Brill

Abstract

We have determined infrared molar absorptivities for water absorption bands in Fe-bearing and Fe-free andesitic glasses. Water dissolves in andesitic glasses as both hydroxyl groups and molecular water as observed in other silicate glasses. Concentrations of molecular water and hydroxyl species are a strong function of total water content. IR molar absorptivities for Fe-bearing andesite are ε3570 = 62.32 ± 0.42 L/mol·cm, ε4500 = 0.79 ± 0.07 L/mol·cm, ε5200 = 1.07 ± 0.07 L/mol·cm, and ε1630 = 42.34 ± 2.77 L/mol·cm. Molar absorptivities for Fe-free andesite are 69.21 ± 0.52 L/mol·cm for e3570, 0.89 ± 0.07 L/mol·cm for e4500, 1.46 ± 0.07 L/mol·cm for e5200, and 52.05 ± 2.85 L/mol·cm for ε1630. Molar absorptivities show significant compositional dependencies that can be predicted based on tetrahedral cation (Si+4, Al+3)/total cation fraction

Received: 2001-6-26
Accepted: 2002-2-5
Published Online: 2015-3-28
Published in Print: 2002-7-1

© 2015 by Walter de Gruyter Berlin/Boston

Articles in the same Issue

  1. Thermal equations of state for B1 and B2 KCl
  2. Determination of molar absorptivities for infrared absorption bands of H2O in andesitic glasses
  3. H2O activity in H2O-N2 fluids at high pressure and temperature measured by the brucitepericlase equilibrium
  4. Kinetics of iron oxidation-reduction in hydrous silicic melts
  5. Kinetics of cation ordering in synthetic MgAl2O4 spinel
  6. Structural properties and heat-induced oxidation-dehydrogenation of manganoan ilvaite from Perda Niedda mine, Sardinia, Italy
  7. Ultrahigh-pressure metamorphism in western Tianshan, China: Part I. Evidence from inclusions of coesite pseudomorphs in garnet and from quartz exsolution lamellae in omphacite in eclogites
  8. Ultra-high pressure metamorphism in western Tianshan, China: Part II. Evidence from magnesite in eclogite
  9. Discovery of clinoenstatite in garnet pyroxenites from the Dabie-Sulu ultrahigh-pressure terrane, east-central China
  10. Ultrahigh-pressure (UHP) low-Al titanites from carbonate-bearing rocks in Dabieshan- Sulu UHP terrane, eastern China
  11. Metamictization and recrystallization of titanite: An infrared spectroscopic study
  12. Fine structure of infrared OH-stretching bands in natural and heat-treated amphiboles of the tremolite-ferro-actinolite series
  13. Correlation between OH concentration and oxygen isotope diffusion rate in diopsides from the Adirondack Mountains, New York
  14. The substitution Fe3+-Al and the isosymmetric displacive phase transition in synthetic zoisite: A powder X-ray and infrared spectroscopy study
  15. In situ X-ray observation of the reaction dolomite = aragonite + magnesite at 900–1300 K
  16. High-pressure single-crystal X-ray and powder neutron study of F,OH/OD-chondrodite: Compressibility, structure, and hydrogen bonding
  17. Quantitative characterization of biotic iron oxides by analytical electron microscopy
  18. Synthesis and NMR characterization (1H and 31P MAS) of the fluorine-free hydroxylapatite–britholite-(Y) series
  19. Quantum mechanical calculations of dioctahedral 2:1 phyllosilicates: Effect of octahedral cation distributions in pyrophyllite, illite, and smectite
  20. The nature of disorder in montmorillonite by simulation of X-ray powder patterns
  21. Ferripedrizite, a new monoclinic BLi amphibole end-member from the Eastern Pedriza Massif, Sierra de Guadarrama, Spain, and a restatement of the nomenclature of Mg-Fe-Mn-Li amphiboles
  22. Description and crystal structure of vajdakite, [(Mo6+O2)2(H2O)2 As3+ 2O5]·H2O—A new mineral from Jáchymov, Czech Republic
  23. Some remarks on fission-track observational biases and crystallographic orientation effects
  24. Surface reconstruction and As-polymerization at fractured loellingite (FeAs2) surfaces
  25. The strength of moissanite
  26. Diamond formation through carbonate-silicate interaction
  27. Anisotropic Fe-Mg diffusion in biotite
  28. Characterization of a high-pressure phase of silica from the Martian meteorite Shergotty
Downloaded on 5.2.2026 from https://www.degruyterbrill.com/document/doi/10.2138/am-2002-0702/pdf
Scroll to top button