The Fe-FeO buffer at lower mantle pressures and temperatures
As a constraint on oxygen fugacity of the lower mantle, the iron‐wüstite (IW) oxygen buffer has been calculated for temperatures to 3000 K and pressures to 135 GPa using available thermochemical and thermophysical data for Fe, FeO, and O2. At conditions corresponding to the coremantle boundary and 6...
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| Veröffentlicht in: | Geophysical research letters 1991-07, Vol.18 (7), p.1309-1312 |
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| container_title | Geophysical research letters |
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| creator | Hirsch, L. M. |
| description | As a constraint on oxygen fugacity of the lower mantle, the iron‐wüstite (IW) oxygen buffer has been calculated for temperatures to 3000 K and pressures to 135 GPa using available thermochemical and thermophysical data for Fe, FeO, and O2. At conditions corresponding to the coremantle boundary and 670 km depth, respectively, the oxygen fugacity of this buffer is 1020 and 10³ Pa; oxygen activities referenced to these conditions are 10−9 and 10−13. |
| doi_str_mv | 10.1029/91GL01583 |
| format | Article |
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M.</creatorcontrib><title>The Fe-FeO buffer at lower mantle pressures and temperatures</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>As a constraint on oxygen fugacity of the lower mantle, the iron‐wüstite (IW) oxygen buffer has been calculated for temperatures to 3000 K and pressures to 135 GPa using available thermochemical and thermophysical data for Fe, FeO, and O2. 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M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a3870-e6846180d054a149399e9eac34d59f2f74c0b69280e671e37268051801320523</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1991</creationdate><topic>360606 - Other Materials- Physical Properties- (1992-)</topic><topic>580000 - Geosciences</topic><topic>Boundaries</topic><topic>Buffers</topic><topic>CALCULATION METHODS</topic><topic>CHALCOGENIDES</topic><topic>DEPTH</topic><topic>DIMENSIONS</topic><topic>EARTH CORE</topic><topic>EARTH MANTLE</topic><topic>ELEMENTS</topic><topic>Fugacity</topic><topic>Geophysics</topic><topic>GEOSCIENCES</topic><topic>INTERFACES</topic><topic>Iron</topic><topic>IRON COMPOUNDS</topic><topic>IRON OXIDES</topic><topic>Mantle</topic><topic>MATERIALS SCIENCE</topic><topic>Mathematical analysis</topic><topic>NONMETALS</topic><topic>OXIDES</topic><topic>OXYGEN</topic><topic>OXYGEN COMPOUNDS</topic><topic>PHYSICAL PROPERTIES</topic><topic>TEMPERATURE RANGE</topic><topic>TEMPERATURE RANGE 1000-4000 K</topic><topic>THERMODYNAMIC PROPERTIES</topic><topic>Thermophysical</topic><topic>TRANSITION ELEMENT COMPOUNDS</topic><topic>VAPOR PRESSURE</topic><topic>VERY HIGH PRESSURE</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hirsch, L. M.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hirsch, L. M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Fe-FeO buffer at lower mantle pressures and temperatures</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. 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| identifier | ISSN: 0094-8276 |
| ispartof | Geophysical research letters, 1991-07, Vol.18 (7), p.1309-1312 |
| issn | 0094-8276 1944-8007 |
| language | eng |
| recordid | cdi_osti_scitechconnect_5422466 |
| source | Wiley Online Library Journals Frontfile Complete |
| subjects | 360606 - Other Materials- Physical Properties- (1992-) 580000 - Geosciences Boundaries Buffers CALCULATION METHODS CHALCOGENIDES DEPTH DIMENSIONS EARTH CORE EARTH MANTLE ELEMENTS Fugacity Geophysics GEOSCIENCES INTERFACES Iron IRON COMPOUNDS IRON OXIDES Mantle MATERIALS SCIENCE Mathematical analysis NONMETALS OXIDES OXYGEN OXYGEN COMPOUNDS PHYSICAL PROPERTIES TEMPERATURE RANGE TEMPERATURE RANGE 1000-4000 K THERMODYNAMIC PROPERTIES Thermophysical TRANSITION ELEMENT COMPOUNDS VAPOR PRESSURE VERY HIGH PRESSURE |
| title | The Fe-FeO buffer at lower mantle pressures and temperatures |
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