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The role of volatile transport by diffusion and dispersion in driving biotite-forming reactions during regional metamorphism of the Gile Mountain Formation, Vermont

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Published/Copyright: January 7, 2016
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American Mineralogist
From the journal American Mineralogist Volume 92 Issue 8-9

Abstract

Infiltration-driven decarbonation reactions produced biotite in pelites and psammites but not in micaceous carbonate rocks in the biotite zone during metamorphism. In one large exposure, the amount of biotite varies greatly in rocks that retain reactants of biotite-forming reactions (0.01.1.10 mol/L in pelites; 0.15.0.53 mol/L in psammites; 0 in carbonates). Conventionally, the variations are interpreted as reactive Fluid Flow in chemically isolated channels that correspond to individual metasedimentary layers. Measured values of lnQs for the equilibria: KAl3Si3O10(OH)2 + 3 CaMg(CO3)2 + 2 SiO2 = KMg3AlSi3O10(OH)2 + CaAl2Si2O8 + 2 CaCO3 + 4 CO2 and 3 KAl3Si3O10(OH)2 + Mg5Al2Si3O10(OH)8 + 4 CaMg(CO3)2 + 5 SiO2 = 3 KMg3AlSi3O10(OH)2 + 4 CaAl2Si2O8 + 8 CO2 + 4 H2O are uniform within error of measurement in all analyzed samples (-1.67 ± 0.08, MSWD = 0.89, and -4.17 ± 0.26, MSWD = 0.52, respectively). The uniformity in Qs values is explained by homogenization of the activities of CO2 and H2O by diffusion and dispersion over a distance >70 m across layering during metamorphism. The uniformity in Qs is inconsistent with the conventional interpretation of differences in the abundance of biotite. The differences are better explained in terms of layer-by-layer variations in the amounts and compositions of minerals prior to reaction. Measured progress of the biotite-forming reactions is reproduced by mass-balance calculations that consider different initial amounts and compositions of reactant minerals in different samples but the same or nearly the same value of Qs at the end of reaction. Mass transport of volatiles both by advection and by diffusion and dispersion are essential controls on the progress of infiltration-driven reactions

Keywords: Fluid Flow; diffusion; dispersion; biotite; regional metamorphism; Gile Mountain Formation; Vermont; reaction progress
Received: 2006-8-22
Accepted: 2007-4-4
Published Online: 2016-1-7
Published in Print: 2007-8-1

© 2016 by Walter de Gruyter Berlin/Boston

Articles in the same Issue

  1. Occurrence and origin of minerals in a chamosite-bearing coal of Late Permian age, Zhaotong, Yunnan, China
  2. Crystal-chemical and carbon-isotopic characteristics of karpatite (C24H12) from the Picacho Peak Area, San Benito County, California: Evidences for the hydrothermal formation
  3. Single-crystal X-ray diffraction study of high-pressure phases of KHCO3
  4. Stress-induced redistribution of yttrium and heavy rare-earth elements (HREE) in garnet during high-grade polymetamorphism
  5. The role of volatile transport by diffusion and dispersion in driving biotite-forming reactions during regional metamorphism of the Gile Mountain Formation, Vermont
  6. Laser Raman microspectrometry of metamorphic quartz: A simple method for comparison of metamorphic pressures
  7. Al,Si order in albite and its effect on albite dissolution processes: A Monte Carlo study
  8. Structural state of microcrystalline opals: A Raman spectroscopic study
  9. A Monte Carlo investigation of the thermodynamics of cation ordering in 2-3 spinels
  10. Modeling the plastic deformation of olivine by dislocation dynamics simulations
  11. Heat capacity of hydration in zeolites
  12. Imaging of dioctahedral 2:1 layers by high-resolution transmission electron microscopy (HRTEM): Possibility of recording the dehydroxylate
  13. Geochemical variations in late-stage growth of volcanic phenocrysts revealed by SIMS depth-profiling
  14. Characterization of mineral surfaces using FIB and TEM: A case study of naturally weathered alkali feldspars
  15. Crystal structure and chemical composition of Li-, Fe-, and Mn-rich micas
  16. Microbial effects in promoting the smectite to illite reaction: Role of organic matter intercalated in the interlayer
  17. Microbial reduction of structural Fe3+ in nontronite by a thermophilic bacterium and its role in promoting the smectite to illite reaction
  18. Unique properties of lunar impact glass: Nanophase metallic Fe synthesis
  19. Aluminotaramite, alumino-magnesiotaramite, and fluoro-alumino-magnesiotaramite: Mineral data and crystal chemistry
  20. Pressure-induced slip-system transition in forsterite: Single-crystal rheological properties at mantle pressure and temperature
  21. Elastic behavior and pressure-induced structural evolution of nepheline: Implications for the nature of the modulated superstructure
  22. Pressure-induced change in the compressional behavior of the O-H bond in chrysotile: A Raman high-pressure study up to 4.5 GPa
  23. Jarosite-hydronium jarosite solid-solution series with full iron site occupancy: Mineralogy and crystal chemistry
  24. Hydrogen bonded silanols in the 10 Å phase: Evidence from NMR spectroscopy
  25. Mössbauer spectroscopy of Zn-poor and Zn-rich rhodonite
  26. The crystal structure of pyroxenes along the jadeite hedenbergite and jadeite aegirine joins
  27. Temperature dependence of IR absorption of hydrous/hydroxyl species in minerals and synthetic materials
  28. The crystal structure of meurigite
  29. Yakovenchukite-(Y), K3NaCaY2(Si12O30)(H2O)4, a new mineral from the Khibiny massif, Kola Peninsula, Russia: A novel type of octahedral-tetrahedral open-framework structure
  30. Letter. Novel 2:1 structure of phyllosilicates formed by annealing Fe3+, Mg-rich dioctahedral mica
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https://doi.org/10.2138/am.2007.2429
Keywords for this article
Fluid Flow; diffusion; dispersion; biotite; regional metamorphism; Gile Mountain Formation; Vermont; reaction progress

Articles in the same Issue

  1. Occurrence and origin of minerals in a chamosite-bearing coal of Late Permian age, Zhaotong, Yunnan, China
  2. Crystal-chemical and carbon-isotopic characteristics of karpatite (C24H12) from the Picacho Peak Area, San Benito County, California: Evidences for the hydrothermal formation
  3. Single-crystal X-ray diffraction study of high-pressure phases of KHCO3
  4. Stress-induced redistribution of yttrium and heavy rare-earth elements (HREE) in garnet during high-grade polymetamorphism
  5. The role of volatile transport by diffusion and dispersion in driving biotite-forming reactions during regional metamorphism of the Gile Mountain Formation, Vermont
  6. Laser Raman microspectrometry of metamorphic quartz: A simple method for comparison of metamorphic pressures
  7. Al,Si order in albite and its effect on albite dissolution processes: A Monte Carlo study
  8. Structural state of microcrystalline opals: A Raman spectroscopic study
  9. A Monte Carlo investigation of the thermodynamics of cation ordering in 2-3 spinels
  10. Modeling the plastic deformation of olivine by dislocation dynamics simulations
  11. Heat capacity of hydration in zeolites
  12. Imaging of dioctahedral 2:1 layers by high-resolution transmission electron microscopy (HRTEM): Possibility of recording the dehydroxylate
  13. Geochemical variations in late-stage growth of volcanic phenocrysts revealed by SIMS depth-profiling
  14. Characterization of mineral surfaces using FIB and TEM: A case study of naturally weathered alkali feldspars
  15. Crystal structure and chemical composition of Li-, Fe-, and Mn-rich micas
  16. Microbial effects in promoting the smectite to illite reaction: Role of organic matter intercalated in the interlayer
  17. Microbial reduction of structural Fe3+ in nontronite by a thermophilic bacterium and its role in promoting the smectite to illite reaction
  18. Unique properties of lunar impact glass: Nanophase metallic Fe synthesis
  19. Aluminotaramite, alumino-magnesiotaramite, and fluoro-alumino-magnesiotaramite: Mineral data and crystal chemistry
  20. Pressure-induced slip-system transition in forsterite: Single-crystal rheological properties at mantle pressure and temperature
  21. Elastic behavior and pressure-induced structural evolution of nepheline: Implications for the nature of the modulated superstructure
  22. Pressure-induced change in the compressional behavior of the O-H bond in chrysotile: A Raman high-pressure study up to 4.5 GPa
  23. Jarosite-hydronium jarosite solid-solution series with full iron site occupancy: Mineralogy and crystal chemistry
  24. Hydrogen bonded silanols in the 10 Å phase: Evidence from NMR spectroscopy
  25. Mössbauer spectroscopy of Zn-poor and Zn-rich rhodonite
  26. The crystal structure of pyroxenes along the jadeite hedenbergite and jadeite aegirine joins
  27. Temperature dependence of IR absorption of hydrous/hydroxyl species in minerals and synthetic materials
  28. The crystal structure of meurigite
  29. Yakovenchukite-(Y), K3NaCaY2(Si12O30)(H2O)4, a new mineral from the Khibiny massif, Kola Peninsula, Russia: A novel type of octahedral-tetrahedral open-framework structure
  30. Letter. Novel 2:1 structure of phyllosilicates formed by annealing Fe3+, Mg-rich dioctahedral mica
  31. Letter. Experimental study of radium partitioning between anorthite and melt at 1 atm
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