A combined rapid-quench and H2-membrane setup for internally heated pressure vessels: Description and application for water solubility in basaltic melts
-
Jasper Berndt
,
Christian Liebske
Abstract
This study presents improvements of internally heated pressure vessels to realize high-pressure experiments at controlled fO₂ in low-viscosity systems such as basaltic ones. The new design is a combination of two experimental techniques: a hydrogen sensor membrane made of platinum to measure fH₂, and therefore fO₂, and a rapid-quench system to avoid crystallization of low-viscosity melts during quench. The experimental setup has been tested successfully at temperatures up to 1250 °C and pressures up to 500 MPa. Basaltic melts containing up to 9.38 wt% water can be quenched as bubble-free and crystal-free glasses. The improvements allow synthesis of hydrated glass or partly crystallized samples with a large volume (for further studies) and to perform routine phase-equilibrium studies in basaltic systems at geologically relevant conditions. We used the new technique to determine the effect of fO₂ on water solubility in a melt with MORB composition. The results show that there is a small but significant decrease of water solubility with decreasing fO₂ from MnO-Mn3O4 to QFM buffer conditions in the pressure range 50-200 MPa. Kinetic problems in crystallization experiments in basaltic systems and the duration necessary to attain equilibrium Fe2+/Fe3+ ratio in the charge are discussed.
© 2015 by Walter de Gruyter Berlin/Boston
Articles in the same Issue
- The chemical character of fluids forming diagenetic illite in the Southern Appalachian Basin
- Interpretation of K-Ar dates of illitic clays from sedimentary rocks aided by modeling
- Illite polytype quantification for accurate K-Ar age determination
- Characterization and modeling of illite crystal particles and growth mechanisms in a zoned hydrothermal deposit, Lake City, Colorado
- Characterization of the Waukesha Illite: A mixed-polytype illite in the Clay Mineral Society repository
- Exploring intra-crystalline B-isotope variations in mixed-layer illite-smectite
- Characteristics of mixed-layer smectite/illite density separates during burial diagenesis
- I-S precipitation in pore space as the cause of geopressuring in Mesozoic mudstones, Egersund Basin, Norwegian continental shelf
- Structural and chemical heterogeneity of illite-smectites from Upper Jurassic mudstones of East Greenland related to volcanic and weathered parent rocks
- Berthierine/chamosite, corrensite, and discrete chlorite from evolved verdine and evaporite-associated facies in the Jurassic Sundance Formation, Wyoming
- Weathering of ilmenite from granite and chlorite schist in the Georgia Piedmont
- The effects of grinding on the structure of a low-defect kaolinite
- Structure of heavy-metal sorbed birnessite: Part 1. Results from X-ray diffraction
- Structure of heavy-metal sorbed birnessite: Part 2. Results from electron diffraction
- Structure of synthetic Na-birnessite: Evidence for a triclinic one-layer unit cell
- New modeling of X-ray diffraction by disordered lamellar structures, such as phyllosilicates
- Identification of polytypic groups in hydrous phyllosilicates using electron backscattering patterns
- Orientational order-disorder of N(D,H)4+ in tobelite
- XPS evidence for Fe and As oxidation states and electronic states in loellingite (FeAs2)
- Hydrothermal alteration of olivine in a flow-through autoclave: Nucleation and growth of serpentine phases
- The influence of bulk composition on the diffusivity of carbon dioxide in Na aluminosilicate melts
- A combined rapid-quench and H2-membrane setup for internally heated pressure vessels: Description and application for water solubility in basaltic melts
- Letter. Crystal morphology of MV-1 magnetite
Articles in the same Issue
- The chemical character of fluids forming diagenetic illite in the Southern Appalachian Basin
- Interpretation of K-Ar dates of illitic clays from sedimentary rocks aided by modeling
- Illite polytype quantification for accurate K-Ar age determination
- Characterization and modeling of illite crystal particles and growth mechanisms in a zoned hydrothermal deposit, Lake City, Colorado
- Characterization of the Waukesha Illite: A mixed-polytype illite in the Clay Mineral Society repository
- Exploring intra-crystalline B-isotope variations in mixed-layer illite-smectite
- Characteristics of mixed-layer smectite/illite density separates during burial diagenesis
- I-S precipitation in pore space as the cause of geopressuring in Mesozoic mudstones, Egersund Basin, Norwegian continental shelf
- Structural and chemical heterogeneity of illite-smectites from Upper Jurassic mudstones of East Greenland related to volcanic and weathered parent rocks
- Berthierine/chamosite, corrensite, and discrete chlorite from evolved verdine and evaporite-associated facies in the Jurassic Sundance Formation, Wyoming
- Weathering of ilmenite from granite and chlorite schist in the Georgia Piedmont
- The effects of grinding on the structure of a low-defect kaolinite
- Structure of heavy-metal sorbed birnessite: Part 1. Results from X-ray diffraction
- Structure of heavy-metal sorbed birnessite: Part 2. Results from electron diffraction
- Structure of synthetic Na-birnessite: Evidence for a triclinic one-layer unit cell
- New modeling of X-ray diffraction by disordered lamellar structures, such as phyllosilicates
- Identification of polytypic groups in hydrous phyllosilicates using electron backscattering patterns
- Orientational order-disorder of N(D,H)4+ in tobelite
- XPS evidence for Fe and As oxidation states and electronic states in loellingite (FeAs2)
- Hydrothermal alteration of olivine in a flow-through autoclave: Nucleation and growth of serpentine phases
- The influence of bulk composition on the diffusivity of carbon dioxide in Na aluminosilicate melts
- A combined rapid-quench and H2-membrane setup for internally heated pressure vessels: Description and application for water solubility in basaltic melts
- Letter. Crystal morphology of MV-1 magnetite
