Influence of oxygen fugacity and temperature on the redox state of iron in natural silicic aluminosilicate melts
The influence of oxygen fugacity ( f O 2 ) and temperature on the valence and structural state of iron was experimentally studied in glasses quenched from natural aluminosilicate melts of granite and pantellerite compositions exposed to various T - f O 2 conditions (1100–1420°C and 10 −12 –10 −0.68...
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| Veröffentlicht in: | Geochemistry international 2012-04, Vol.50 (4), p.330-343 |
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| creator | Volovetskii, M. V. Lukanin, O. A. Rusakov, V. S. Kargal’tsev, A. A. |
| description | The influence of oxygen fugacity (
f
O
2
) and temperature on the valence and structural state of iron was experimentally studied in glasses quenched from natural aluminosilicate melts of granite and pantellerite compositions exposed to various
T
-
f
O
2
conditions (1100–1420°C and 10
−12
–10
−0.68
bar) at a total pressure of 1 atm. The quenched glasses were investigated by Mössbauer spectroscopy. It was shown that the effect of oxygen fugacity on the redox state of iron at 1320–1420°C can be described by the equation log(Fe
3+
/Fe
2+
) =
k
log(
f
O
2
) +
q
, where
k
and
q
are constants depending on melt composition and temperature. The Fe
3+
/Fe
2+
ratio decreases with decreasing
f
O
2
(
T
= const) and increasing temperature (
f
O
2
= const). The structural state of Fe
3+
depends on the degree of iron oxidation. With increasing Fe
3+
/Fe
2+
≥ 1, the dominant coordination of Fe
3+
changes from octahedral to tetrahedral. Ferrous iron ions occur in octahedral (and/or five-coordinated) sites independent of Fe
3+
/Fe
2+
. |
| doi_str_mv | 10.1134/S0016702912040088 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_963598597</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2624390271</sourcerecordid><originalsourceid>FETCH-LOGICAL-c315t-c8b3c476139df272e8651d0ca11bb87a90b93db5cc91dbb2af542d3ac8ec8a3c3</originalsourceid><addsrcrecordid>eNp1kEtLxDAUhYMoOI7-AHfBfTW3adpkKYOPAcGFui5pHmOGNq1JCjP_3nZGcCGuLvee75wLB6FrILcAtLh7IwTKiuQCclIQwvkJWgBjZQai5KdoMcvZrJ-jixi3hBQFFdUCDWtv29F4ZXBvcb_bb4zHdtxI5dIeS69xMt1ggkxjmBCP06fBweh-h2OS6eByYbo7j_0MyRZH1zrlFJbt2DnfH9YZ7Uyb4iU6s7KN5upnLtHH48P76jl7eX1ar-5fMkWBpUzxhqqiKoEKbfMqN7xkoImSAE3DKylII6humFICdNPk0rIi11QqbhSXVNElujnmDqH_Gk1M9bYfg59e1qKkTHAmqgmCI6RCH2Mwth6C62TY10Dqudf6T6-TJz964sT6jQm_wf-bvgHUu3wp</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>963598597</pqid></control><display><type>article</type><title>Influence of oxygen fugacity and temperature on the redox state of iron in natural silicic aluminosilicate melts</title><source>Springer Nature - Complete Springer Journals</source><creator>Volovetskii, M. V. ; Lukanin, O. A. ; Rusakov, V. S. ; Kargal’tsev, A. A.</creator><creatorcontrib>Volovetskii, M. V. ; Lukanin, O. A. ; Rusakov, V. S. ; Kargal’tsev, A. A.</creatorcontrib><description>The influence of oxygen fugacity (
f
O
2
) and temperature on the valence and structural state of iron was experimentally studied in glasses quenched from natural aluminosilicate melts of granite and pantellerite compositions exposed to various
T
-
f
O
2
conditions (1100–1420°C and 10
−12
–10
−0.68
bar) at a total pressure of 1 atm. The quenched glasses were investigated by Mössbauer spectroscopy. It was shown that the effect of oxygen fugacity on the redox state of iron at 1320–1420°C can be described by the equation log(Fe
3+
/Fe
2+
) =
k
log(
f
O
2
) +
q
, where
k
and
q
are constants depending on melt composition and temperature. The Fe
3+
/Fe
2+
ratio decreases with decreasing
f
O
2
(
T
= const) and increasing temperature (
f
O
2
= const). The structural state of Fe
3+
depends on the degree of iron oxidation. With increasing Fe
3+
/Fe
2+
≥ 1, the dominant coordination of Fe
3+
changes from octahedral to tetrahedral. Ferrous iron ions occur in octahedral (and/or five-coordinated) sites independent of Fe
3+
/Fe
2+
.</description><identifier>ISSN: 0016-7029</identifier><identifier>EISSN: 1556-1968</identifier><identifier>DOI: 10.1134/S0016702912040088</identifier><language>eng</language><publisher>Dordrecht: SP MAIK Nauka/Interperiodica</publisher><subject>Earth and Environmental Science ; Earth Sciences ; Geochemistry ; Iron ; Melting ; Oxygen ; Silica</subject><ispartof>Geochemistry international, 2012-04, Vol.50 (4), p.330-343</ispartof><rights>Pleiades Publishing, Ltd. 2012</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c315t-c8b3c476139df272e8651d0ca11bb87a90b93db5cc91dbb2af542d3ac8ec8a3c3</citedby><cites>FETCH-LOGICAL-c315t-c8b3c476139df272e8651d0ca11bb87a90b93db5cc91dbb2af542d3ac8ec8a3c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S0016702912040088$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S0016702912040088$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Volovetskii, M. V.</creatorcontrib><creatorcontrib>Lukanin, O. A.</creatorcontrib><creatorcontrib>Rusakov, V. S.</creatorcontrib><creatorcontrib>Kargal’tsev, A. A.</creatorcontrib><title>Influence of oxygen fugacity and temperature on the redox state of iron in natural silicic aluminosilicate melts</title><title>Geochemistry international</title><addtitle>Geochem. Int</addtitle><description>The influence of oxygen fugacity (
f
O
2
) and temperature on the valence and structural state of iron was experimentally studied in glasses quenched from natural aluminosilicate melts of granite and pantellerite compositions exposed to various
T
-
f
O
2
conditions (1100–1420°C and 10
−12
–10
−0.68
bar) at a total pressure of 1 atm. The quenched glasses were investigated by Mössbauer spectroscopy. It was shown that the effect of oxygen fugacity on the redox state of iron at 1320–1420°C can be described by the equation log(Fe
3+
/Fe
2+
) =
k
log(
f
O
2
) +
q
, where
k
and
q
are constants depending on melt composition and temperature. The Fe
3+
/Fe
2+
ratio decreases with decreasing
f
O
2
(
T
= const) and increasing temperature (
f
O
2
= const). The structural state of Fe
3+
depends on the degree of iron oxidation. With increasing Fe
3+
/Fe
2+
≥ 1, the dominant coordination of Fe
3+
changes from octahedral to tetrahedral. Ferrous iron ions occur in octahedral (and/or five-coordinated) sites independent of Fe
3+
/Fe
2+
.</description><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Geochemistry</subject><subject>Iron</subject><subject>Melting</subject><subject>Oxygen</subject><subject>Silica</subject><issn>0016-7029</issn><issn>1556-1968</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kEtLxDAUhYMoOI7-AHfBfTW3adpkKYOPAcGFui5pHmOGNq1JCjP_3nZGcCGuLvee75wLB6FrILcAtLh7IwTKiuQCclIQwvkJWgBjZQai5KdoMcvZrJ-jixi3hBQFFdUCDWtv29F4ZXBvcb_bb4zHdtxI5dIeS69xMt1ggkxjmBCP06fBweh-h2OS6eByYbo7j_0MyRZH1zrlFJbt2DnfH9YZ7Uyb4iU6s7KN5upnLtHH48P76jl7eX1ar-5fMkWBpUzxhqqiKoEKbfMqN7xkoImSAE3DKylII6humFICdNPk0rIi11QqbhSXVNElujnmDqH_Gk1M9bYfg59e1qKkTHAmqgmCI6RCH2Mwth6C62TY10Dqudf6T6-TJz964sT6jQm_wf-bvgHUu3wp</recordid><startdate>20120401</startdate><enddate>20120401</enddate><creator>Volovetskii, M. V.</creator><creator>Lukanin, O. A.</creator><creator>Rusakov, V. 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S. ; Kargal’tsev, A. A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c315t-c8b3c476139df272e8651d0ca11bb87a90b93db5cc91dbb2af542d3ac8ec8a3c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Geochemistry</topic><topic>Iron</topic><topic>Melting</topic><topic>Oxygen</topic><topic>Silica</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Volovetskii, M. V.</creatorcontrib><creatorcontrib>Lukanin, O. A.</creatorcontrib><creatorcontrib>Rusakov, V. S.</creatorcontrib><creatorcontrib>Kargal’tsev, A. A.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>ProQuest Central Student</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Science Database</collection><collection>Environmental Science Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><jtitle>Geochemistry international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Volovetskii, M. V.</au><au>Lukanin, O. A.</au><au>Rusakov, V. S.</au><au>Kargal’tsev, A. A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of oxygen fugacity and temperature on the redox state of iron in natural silicic aluminosilicate melts</atitle><jtitle>Geochemistry international</jtitle><stitle>Geochem. Int</stitle><date>2012-04-01</date><risdate>2012</risdate><volume>50</volume><issue>4</issue><spage>330</spage><epage>343</epage><pages>330-343</pages><issn>0016-7029</issn><eissn>1556-1968</eissn><abstract>The influence of oxygen fugacity (
f
O
2
) and temperature on the valence and structural state of iron was experimentally studied in glasses quenched from natural aluminosilicate melts of granite and pantellerite compositions exposed to various
T
-
f
O
2
conditions (1100–1420°C and 10
−12
–10
−0.68
bar) at a total pressure of 1 atm. The quenched glasses were investigated by Mössbauer spectroscopy. It was shown that the effect of oxygen fugacity on the redox state of iron at 1320–1420°C can be described by the equation log(Fe
3+
/Fe
2+
) =
k
log(
f
O
2
) +
q
, where
k
and
q
are constants depending on melt composition and temperature. The Fe
3+
/Fe
2+
ratio decreases with decreasing
f
O
2
(
T
= const) and increasing temperature (
f
O
2
= const). The structural state of Fe
3+
depends on the degree of iron oxidation. With increasing Fe
3+
/Fe
2+
≥ 1, the dominant coordination of Fe
3+
changes from octahedral to tetrahedral. Ferrous iron ions occur in octahedral (and/or five-coordinated) sites independent of Fe
3+
/Fe
2+
.</abstract><cop>Dordrecht</cop><pub>SP MAIK Nauka/Interperiodica</pub><doi>10.1134/S0016702912040088</doi><tpages>14</tpages></addata></record> |
| fulltext | fulltext |
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| ispartof | Geochemistry international, 2012-04, Vol.50 (4), p.330-343 |
| issn | 0016-7029 1556-1968 |
| language | eng |
| recordid | cdi_proquest_journals_963598597 |
| source | Springer Nature - Complete Springer Journals |
| subjects | Earth and Environmental Science Earth Sciences Geochemistry Iron Melting Oxygen Silica |
| title | Influence of oxygen fugacity and temperature on the redox state of iron in natural silicic aluminosilicate melts |
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