Hornblende dehydration reactions during magma ascent at Soufrière Hills Volcano, Montserrat
Hornblende phenocrysts in recent andesites of the Soufriere Hills Volcano display reaction rims of microcrystalline plagioclase, pyroxene, Fe-oxides and interstitial glass, formed by decompression during magma ascent. Mass balance calculations give the following reactions with mineral proportions in...
Gespeichert in:
Veröffentlicht in: | Contributions to mineralogy and petrology 2006-02, Vol.151 (2), p.121-140 |
---|---|
Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | 140 |
---|---|
container_issue | 2 |
container_start_page | 121 |
container_title | Contributions to mineralogy and petrology |
container_volume | 151 |
creator | Buckley, V. J. E. Sparks, R. S. J. Wood, B. J. |
description | Hornblende phenocrysts in recent andesites of the Soufriere Hills Volcano display reaction rims of microcrystalline plagioclase, pyroxene, Fe-oxides and interstitial glass, formed by decompression during magma ascent. Mass balance calculations give the following reactions with mineral proportions in agreement with modal abundances: (formulas omitted) These reactions require an open chemical system with exchange of selected components with surrounding melt. Volatiles, TiO2 and alkalis are expelled and SiO2 and FeOT are consumed. Matrix glasses fall into two compositional groups. Glasses in pumice are relatively rich in CaO and poor in K2O and Na2O compared to glasses in dome samples. The former glasses formed by moderate amounts of groundmass crystallisation of plagioclase, associated with rapid magma ascent in explosive eruptions. The later glasses evolved in response to hornblende breakdown, groundmass crystallisation and mixing of melts from different levels during slow magma ascent and extended residence time in the dome. Interstitial glass compositions in reaction rims reflect the compositions of the surrounding matrix glasses, but show variable compositional differences mostly consistent with the proposed open-system reactions.[PUBLICATION ABSTRACT] |
doi_str_mv | 10.1007/s00410-005-0060-5 |
format | Article |
fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_208172497</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1006811741</sourcerecordid><originalsourceid>FETCH-LOGICAL-a295t-d7e180754a12da9e708d4d002e7bf548d3bd37178ed2903b10777ac236ca7e513</originalsourceid><addsrcrecordid>eNotkE1OwzAQhS0EEqVwAHYWawJjJ-7ES1QBRSpiwc8KyXLiSUmV2sVOFr0R9-BipCqL0ZvRPL0nfYxdCrgRAHibAAoBGYAaZwaZOmITUeQyAz3DYzYBGL-otT5lZymtYbxLrSbscxGirzryjrijr52Ltm-D55FsvV8Sd0Ns_Ypv7GpjuU01-Z7bnr-GoYnt708kvmi7LvGP0NXWh2v-HHyfKI5B5-yksV2ii3-dsveH-7f5Ilu-PD7N75aZlVr1mUMSJaAqrJDOakIoXeEAJGHVqKJ0eeVyFFiSkxrySgAi2lrms9oiKZFP2dUhdxvD90CpN-swRD9WGgmlQFloHE3iYKpjSClSY7ax3di4MwLMnqE5MDQjQ7NnaFT-B-tlZVs</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>208172497</pqid></control><display><type>article</type><title>Hornblende dehydration reactions during magma ascent at Soufrière Hills Volcano, Montserrat</title><source>SpringerLink Journals - AutoHoldings</source><creator>Buckley, V. J. E. ; Sparks, R. S. J. ; Wood, B. J.</creator><creatorcontrib>Buckley, V. J. E. ; Sparks, R. S. J. ; Wood, B. J.</creatorcontrib><description>Hornblende phenocrysts in recent andesites of the Soufriere Hills Volcano display reaction rims of microcrystalline plagioclase, pyroxene, Fe-oxides and interstitial glass, formed by decompression during magma ascent. Mass balance calculations give the following reactions with mineral proportions in agreement with modal abundances: (formulas omitted) These reactions require an open chemical system with exchange of selected components with surrounding melt. Volatiles, TiO2 and alkalis are expelled and SiO2 and FeOT are consumed. Matrix glasses fall into two compositional groups. Glasses in pumice are relatively rich in CaO and poor in K2O and Na2O compared to glasses in dome samples. The former glasses formed by moderate amounts of groundmass crystallisation of plagioclase, associated with rapid magma ascent in explosive eruptions. The later glasses evolved in response to hornblende breakdown, groundmass crystallisation and mixing of melts from different levels during slow magma ascent and extended residence time in the dome. Interstitial glass compositions in reaction rims reflect the compositions of the surrounding matrix glasses, but show variable compositional differences mostly consistent with the proposed open-system reactions.[PUBLICATION ABSTRACT]</description><identifier>ISSN: 0010-7999</identifier><identifier>EISSN: 1432-0967</identifier><identifier>DOI: 10.1007/s00410-005-0060-5</identifier><identifier>CODEN: CMPEAP</identifier><language>eng</language><publisher>Heidelberg: Springer Nature B.V</publisher><subject>Dehydration ; Geochemistry ; Hills ; Magma ; Mineralogy ; Petrology ; Titanium dioxide ; Volcanoes</subject><ispartof>Contributions to mineralogy and petrology, 2006-02, Vol.151 (2), p.121-140</ispartof><rights>Springer-Verlag 2006</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a295t-d7e180754a12da9e708d4d002e7bf548d3bd37178ed2903b10777ac236ca7e513</citedby><cites>FETCH-LOGICAL-a295t-d7e180754a12da9e708d4d002e7bf548d3bd37178ed2903b10777ac236ca7e513</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Buckley, V. J. E.</creatorcontrib><creatorcontrib>Sparks, R. S. J.</creatorcontrib><creatorcontrib>Wood, B. J.</creatorcontrib><title>Hornblende dehydration reactions during magma ascent at Soufrière Hills Volcano, Montserrat</title><title>Contributions to mineralogy and petrology</title><description>Hornblende phenocrysts in recent andesites of the Soufriere Hills Volcano display reaction rims of microcrystalline plagioclase, pyroxene, Fe-oxides and interstitial glass, formed by decompression during magma ascent. Mass balance calculations give the following reactions with mineral proportions in agreement with modal abundances: (formulas omitted) These reactions require an open chemical system with exchange of selected components with surrounding melt. Volatiles, TiO2 and alkalis are expelled and SiO2 and FeOT are consumed. Matrix glasses fall into two compositional groups. Glasses in pumice are relatively rich in CaO and poor in K2O and Na2O compared to glasses in dome samples. The former glasses formed by moderate amounts of groundmass crystallisation of plagioclase, associated with rapid magma ascent in explosive eruptions. The later glasses evolved in response to hornblende breakdown, groundmass crystallisation and mixing of melts from different levels during slow magma ascent and extended residence time in the dome. Interstitial glass compositions in reaction rims reflect the compositions of the surrounding matrix glasses, but show variable compositional differences mostly consistent with the proposed open-system reactions.[PUBLICATION ABSTRACT]</description><subject>Dehydration</subject><subject>Geochemistry</subject><subject>Hills</subject><subject>Magma</subject><subject>Mineralogy</subject><subject>Petrology</subject><subject>Titanium dioxide</subject><subject>Volcanoes</subject><issn>0010-7999</issn><issn>1432-0967</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNotkE1OwzAQhS0EEqVwAHYWawJjJ-7ES1QBRSpiwc8KyXLiSUmV2sVOFr0R9-BipCqL0ZvRPL0nfYxdCrgRAHibAAoBGYAaZwaZOmITUeQyAz3DYzYBGL-otT5lZymtYbxLrSbscxGirzryjrijr52Ltm-D55FsvV8Sd0Ns_Ypv7GpjuU01-Z7bnr-GoYnt708kvmi7LvGP0NXWh2v-HHyfKI5B5-yksV2ii3-dsveH-7f5Ilu-PD7N75aZlVr1mUMSJaAqrJDOakIoXeEAJGHVqKJ0eeVyFFiSkxrySgAi2lrms9oiKZFP2dUhdxvD90CpN-swRD9WGgmlQFloHE3iYKpjSClSY7ax3di4MwLMnqE5MDQjQ7NnaFT-B-tlZVs</recordid><startdate>200602</startdate><enddate>200602</enddate><creator>Buckley, V. J. E.</creator><creator>Sparks, R. S. J.</creator><creator>Wood, B. J.</creator><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TN</scope><scope>7XB</scope><scope>88I</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>F1W</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>L.G</scope><scope>L6V</scope><scope>M2O</scope><scope>M2P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>PCBAR</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>R05</scope></search><sort><creationdate>200602</creationdate><title>Hornblende dehydration reactions during magma ascent at Soufrière Hills Volcano, Montserrat</title><author>Buckley, V. J. E. ; Sparks, R. S. J. ; Wood, B. J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a295t-d7e180754a12da9e708d4d002e7bf548d3bd37178ed2903b10777ac236ca7e513</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Dehydration</topic><topic>Geochemistry</topic><topic>Hills</topic><topic>Magma</topic><topic>Mineralogy</topic><topic>Petrology</topic><topic>Titanium dioxide</topic><topic>Volcanoes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Buckley, V. J. E.</creatorcontrib><creatorcontrib>Sparks, R. S. J.</creatorcontrib><creatorcontrib>Wood, B. J.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Oceanic Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>Research Library</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Research Library (Corporate)</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><collection>University of Michigan</collection><jtitle>Contributions to mineralogy and petrology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Buckley, V. J. E.</au><au>Sparks, R. S. J.</au><au>Wood, B. J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hornblende dehydration reactions during magma ascent at Soufrière Hills Volcano, Montserrat</atitle><jtitle>Contributions to mineralogy and petrology</jtitle><date>2006-02</date><risdate>2006</risdate><volume>151</volume><issue>2</issue><spage>121</spage><epage>140</epage><pages>121-140</pages><issn>0010-7999</issn><eissn>1432-0967</eissn><coden>CMPEAP</coden><abstract>Hornblende phenocrysts in recent andesites of the Soufriere Hills Volcano display reaction rims of microcrystalline plagioclase, pyroxene, Fe-oxides and interstitial glass, formed by decompression during magma ascent. Mass balance calculations give the following reactions with mineral proportions in agreement with modal abundances: (formulas omitted) These reactions require an open chemical system with exchange of selected components with surrounding melt. Volatiles, TiO2 and alkalis are expelled and SiO2 and FeOT are consumed. Matrix glasses fall into two compositional groups. Glasses in pumice are relatively rich in CaO and poor in K2O and Na2O compared to glasses in dome samples. The former glasses formed by moderate amounts of groundmass crystallisation of plagioclase, associated with rapid magma ascent in explosive eruptions. The later glasses evolved in response to hornblende breakdown, groundmass crystallisation and mixing of melts from different levels during slow magma ascent and extended residence time in the dome. Interstitial glass compositions in reaction rims reflect the compositions of the surrounding matrix glasses, but show variable compositional differences mostly consistent with the proposed open-system reactions.[PUBLICATION ABSTRACT]</abstract><cop>Heidelberg</cop><pub>Springer Nature B.V</pub><doi>10.1007/s00410-005-0060-5</doi><tpages>20</tpages></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0010-7999 |
ispartof | Contributions to mineralogy and petrology, 2006-02, Vol.151 (2), p.121-140 |
issn | 0010-7999 1432-0967 |
language | eng |
recordid | cdi_proquest_journals_208172497 |
source | SpringerLink Journals - AutoHoldings |
subjects | Dehydration Geochemistry Hills Magma Mineralogy Petrology Titanium dioxide Volcanoes |
title | Hornblende dehydration reactions during magma ascent at Soufrière Hills Volcano, Montserrat |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-05T11%3A54%3A48IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Hornblende%20dehydration%20reactions%20during%20magma%20ascent%20at%20Soufri%C3%A8re%20Hills%20Volcano,%20Montserrat&rft.jtitle=Contributions%20to%20mineralogy%20and%20petrology&rft.au=Buckley,%20V.%20J.%20E.&rft.date=2006-02&rft.volume=151&rft.issue=2&rft.spage=121&rft.epage=140&rft.pages=121-140&rft.issn=0010-7999&rft.eissn=1432-0967&rft.coden=CMPEAP&rft_id=info:doi/10.1007/s00410-005-0060-5&rft_dat=%3Cproquest_cross%3E1006811741%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=208172497&rft_id=info:pmid/&rfr_iscdi=true |