Isotope Geochemistry of the Pb‐Zn‐Ba(‐Ag‐Au) Mineralization at Triades‐Galana, Milos Island, Greece
Identifieur interne : 000153 ( Istex/Corpus ); précédent : 000152; suivant : 000154Isotope Geochemistry of the Pb‐Zn‐Ba(‐Ag‐Au) Mineralization at Triades‐Galana, Milos Island, Greece
Auteurs : Robert Marschik ; Tobias Bauer ; Ana-Sophie Hensler ; Nikos Skarpelis ; Stefan HölzlSource :
- Resource Geology [ 1344-1698 ] ; 2010-12.
English descriptors
- KwdEn :
- Authors resource geology, Ballanti, Barite, Barite sulfate, Brittle faults, Central aegean, Continental crust, Country rocks, Crust, Earth planet, Epithermal, Fytikas, Galana, Galena, Geochemical, Geochemistry, Geology, Homogenization temperatures, Hydrothermal, Hydrothermal activity, Hydrothermal events, Hydrothermal system, Isotope, Isotope geochemistry, Isotope ratios, Isotope signature, Lava, Main alteration types, Marschik, Mcphie, Melfos, Milo, Milos island, Mineral exploration, Mineralization, Naden, Normal faults, Pyroclastic rocks, Quartz, Resource geology, Resource geology mineralization, Seawater, Seawater hydrothermal system, Sphalerite, Stewart mcphie, Strontium, Sulfate, Sulfur, Sulfur isotope ratios, Tetrahedrite, Triades, Uids, Vavelidis, Vavelidis melfos, Voudouris.
- Teeft :
- Authors resource geology, Ballanti, Barite, Barite sulfate, Brittle faults, Central aegean, Continental crust, Country rocks, Crust, Earth planet, Epithermal, Fytikas, Galana, Galena, Geochemical, Geochemistry, Geology, Homogenization temperatures, Hydrothermal, Hydrothermal activity, Hydrothermal events, Hydrothermal system, Isotope, Isotope geochemistry, Isotope ratios, Isotope signature, Lava, Main alteration types, Marschik, Mcphie, Melfos, Milo, Milos island, Mineral exploration, Mineralization, Naden, Normal faults, Pyroclastic rocks, Quartz, Resource geology, Resource geology mineralization, Seawater, Seawater hydrothermal system, Sphalerite, Stewart mcphie, Strontium, Sulfate, Sulfur, Sulfur isotope ratios, Tetrahedrite, Triades, Uids, Vavelidis, Vavelidis melfos, Voudouris.
Abstract
The Pb‐Zn‐Ba(‐Ag‐Au) mineralization in the Triades and Galana mine areas is hosted in 2.5–1.4 Ma pyroclastic rocks, and structurally controlled mostly by NE‐SW or N‐S trending brittle faults. Proximal pervasive silica and distal pervasive sericite‐illite alteration are the two main alteration types present at the surface. The distribution of mineralization‐alteration in the district suggests at least two hydrothermal events or that hydrothermal activity lasted longer at Galana. The Sr isotope signature of sphalerite and barite (87Sr/86Sr = 0.709162 to 0.710214) and calculated oxygen isotope composition of a fluid in equilibrium with barite and associated quartz at temperatures of around 230°C are suggestive of a seawater hydrothermal system and fluid/rock interaction. Lead isotope ratios of galena and sphalerite (206Pb/204Pb from 18.8384 to 18.8711; 207Pb/204Pb from 15.6695 to 15.6976; 208Pb/204Pb from 38.9158 to 39.0161) are similar to those of South Aegean Arc volcanic and Aegean Miocene plutonic rocks, and compatible with Pb derived from an igneous source. Galena and sphalerite from Triades‐Galana have δ34SVCDT values ranging from +1 to +3.6‰, whereas barite sulfate shows δ34SVCDT values from +22.8 to +24.4‰. The sulfur isotope signatures of these minerals are explained by seawater sulfate reduction processes. The new analytical data are consistent with a seawater‐dominated hydrothermal system and interaction of the hydrothermal fluid with the country rocks, which are the source of the ore metals.
Url:
DOI: 10.1111/j.1751-3928.2010.00139.x
Links to Exploration step
ISTEX:53AA336A54BE355F90B11CBA34F752D12CB506E5Le document en format XML
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first="Ana-Sophie" last="Hensler">Ana-Sophie Hensler</name><affiliation><mods:affiliation>Department of Earth and Enviromental Sciences, Ludwig‐Maximilians Universität, München, Germany</mods:affiliation></affiliation></author><author><name sortKey="Skarpelis, Nikos" sort="Skarpelis, Nikos" uniqKey="Skarpelis N" first="Nikos" last="Skarpelis">Nikos Skarpelis</name><affiliation><mods:affiliation>Department of Geology and Geoenvironment, University of Athens, Panepistimioupoli, Athens, Greece</mods:affiliation></affiliation></author><author><name sortKey="Holzl, Stefan" sort="Holzl, Stefan" uniqKey="Holzl S" first="Stefan" last="Hölzl">Stefan Hölzl</name><affiliation><mods:affiliation>Bayerische Staatssammlung für Paläontologie und Geologie, München, Germany</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:53AA336A54BE355F90B11CBA34F752D12CB506E5</idno><date when="2010" year="2010">2010</date><idno 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last="Bauer">Tobias Bauer</name><affiliation><mods:affiliation>Department of Earth and Enviromental Sciences, Ludwig‐Maximilians Universität, München, Germany</mods:affiliation></affiliation></author><author><name sortKey="Hensler, Ana Ophie" sort="Hensler, Ana Ophie" uniqKey="Hensler A" first="Ana-Sophie" last="Hensler">Ana-Sophie Hensler</name><affiliation><mods:affiliation>Department of Earth and Enviromental Sciences, Ludwig‐Maximilians Universität, München, Germany</mods:affiliation></affiliation></author><author><name sortKey="Skarpelis, Nikos" sort="Skarpelis, Nikos" uniqKey="Skarpelis N" first="Nikos" last="Skarpelis">Nikos Skarpelis</name><affiliation><mods:affiliation>Department of Geology and Geoenvironment, University of Athens, Panepistimioupoli, Athens, Greece</mods:affiliation></affiliation></author><author><name sortKey="Holzl, Stefan" sort="Holzl, Stefan" uniqKey="Holzl S" first="Stefan" last="Hölzl">Stefan Hölzl</name><affiliation><mods:affiliation>Bayerische Staatssammlung für Paläontologie und Geologie, München, Germany</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Resource Geology</title><title level="j" type="alt">RESOURCE GEOLOGY</title><idno type="ISSN">1344-1698</idno><idno type="eISSN">1751-3928</idno><imprint><biblScope unit="vol">60</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="335">335</biblScope><biblScope unit="page" to="347">347</biblScope><biblScope unit="page-count">13</biblScope><publisher>Blackwell Publishing Asia</publisher><pubPlace>Melbourne, Australia</pubPlace><date type="published" when="2010-12">2010-12</date></imprint><idno type="ISSN">1344-1698</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1344-1698</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Authors resource geology</term><term>Ballanti</term><term>Barite</term><term>Barite sulfate</term><term>Brittle faults</term><term>Central aegean</term><term>Continental crust</term><term>Country rocks</term><term>Crust</term><term>Earth planet</term><term>Epithermal</term><term>Fytikas</term><term>Galana</term><term>Galena</term><term>Geochemical</term><term>Geochemistry</term><term>Geology</term><term>Homogenization temperatures</term><term>Hydrothermal</term><term>Hydrothermal activity</term><term>Hydrothermal events</term><term>Hydrothermal system</term><term>Isotope</term><term>Isotope geochemistry</term><term>Isotope ratios</term><term>Isotope signature</term><term>Lava</term><term>Main alteration types</term><term>Marschik</term><term>Mcphie</term><term>Melfos</term><term>Milo</term><term>Milos island</term><term>Mineral exploration</term><term>Mineralization</term><term>Naden</term><term>Normal faults</term><term>Pyroclastic rocks</term><term>Quartz</term><term>Resource geology</term><term>Resource geology mineralization</term><term>Seawater</term><term>Seawater hydrothermal system</term><term>Sphalerite</term><term>Stewart mcphie</term><term>Strontium</term><term>Sulfate</term><term>Sulfur</term><term>Sulfur isotope ratios</term><term>Tetrahedrite</term><term>Triades</term><term>Uids</term><term>Vavelidis</term><term>Vavelidis melfos</term><term>Voudouris</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Authors resource geology</term><term>Ballanti</term><term>Barite</term><term>Barite sulfate</term><term>Brittle faults</term><term>Central aegean</term><term>Continental crust</term><term>Country rocks</term><term>Crust</term><term>Earth planet</term><term>Epithermal</term><term>Fytikas</term><term>Galana</term><term>Galena</term><term>Geochemical</term><term>Geochemistry</term><term>Geology</term><term>Homogenization temperatures</term><term>Hydrothermal</term><term>Hydrothermal activity</term><term>Hydrothermal events</term><term>Hydrothermal system</term><term>Isotope</term><term>Isotope geochemistry</term><term>Isotope ratios</term><term>Isotope signature</term><term>Lava</term><term>Main alteration types</term><term>Marschik</term><term>Mcphie</term><term>Melfos</term><term>Milo</term><term>Milos island</term><term>Mineral exploration</term><term>Mineralization</term><term>Naden</term><term>Normal faults</term><term>Pyroclastic rocks</term><term>Quartz</term><term>Resource geology</term><term>Resource geology mineralization</term><term>Seawater</term><term>Seawater hydrothermal system</term><term>Sphalerite</term><term>Stewart mcphie</term><term>Strontium</term><term>Sulfate</term><term>Sulfur</term><term>Sulfur isotope ratios</term><term>Tetrahedrite</term><term>Triades</term><term>Uids</term><term>Vavelidis</term><term>Vavelidis melfos</term><term>Voudouris</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The Pb‐Zn‐Ba(‐Ag‐Au) mineralization in the Triades and Galana mine areas is hosted in 2.5–1.4 Ma pyroclastic rocks, and structurally controlled mostly by NE‐SW or N‐S trending brittle faults. Proximal pervasive silica and distal pervasive sericite‐illite alteration are the two main alteration types present at the surface. The distribution of mineralization‐alteration in the district suggests at least two hydrothermal events or that hydrothermal activity lasted longer at Galana. The Sr isotope signature of sphalerite and barite (87Sr/86Sr = 0.709162 to 0.710214) and calculated oxygen isotope composition of a fluid in equilibrium with barite and associated quartz at temperatures of around 230°C are suggestive of a seawater hydrothermal system and fluid/rock interaction. Lead isotope ratios of galena and sphalerite (206Pb/204Pb from 18.8384 to 18.8711; 207Pb/204Pb from 15.6695 to 15.6976; 208Pb/204Pb from 38.9158 to 39.0161) are similar to those of South Aegean Arc volcanic and Aegean Miocene plutonic rocks, and compatible with Pb derived from an igneous source. Galena and sphalerite from Triades‐Galana have δ34SVCDT values ranging from +1 to +3.6‰, whereas barite sulfate shows δ34SVCDT values from +22.8 to +24.4‰. The sulfur isotope signatures of these minerals are explained by seawater sulfate reduction processes. The new analytical data are consistent with a seawater‐dominated hydrothermal system and interaction of the hydrothermal fluid with the country rocks, which are the source of the ore metals.</div></front></TEI><istex><corpusName>wiley</corpusName><keywords><teeft><json:string>barite</json:string><json:string>isotope</json:string><json:string>triades</json:string><json:string>milo</json:string><json:string>hydrothermal</json:string><json:string>sphalerite</json:string><json:string>seawater</json:string><json:string>mineralization</json:string><json:string>galana</json:string><json:string>sulfate</json:string><json:string>authors resource geology</json:string><json:string>fytikas</json:string><json:string>melfos</json:string><json:string>vavelidis</json:string><json:string>naden</json:string><json:string>sulfur</json:string><json:string>uids</json:string><json:string>epithermal</json:string><json:string>geochemical</json:string><json:string>milos island</json:string><json:string>mcphie</json:string><json:string>strontium</json:string><json:string>ballanti</json:string><json:string>galena</json:string><json:string>marschik</json:string><json:string>isotope ratios</json:string><json:string>voudouris</json:string><json:string>tetrahedrite</json:string><json:string>stewart mcphie</json:string><json:string>quartz</json:string><json:string>resource geology</json:string><json:string>normal faults</json:string><json:string>sulfur isotope ratios</json:string><json:string>seawater hydrothermal system</json:string><json:string>earth planet</json:string><json:string>continental crust</json:string><json:string>isotope signature</json:string><json:string>vavelidis melfos</json:string><json:string>resource geology mineralization</json:string><json:string>homogenization temperatures</json:string><json:string>lava</json:string><json:string>crust</json:string><json:string>geology</json:string><json:string>barite sulfate</json:string><json:string>brittle faults</json:string><json:string>main alteration types</json:string><json:string>country rocks</json:string><json:string>isotope geochemistry</json:string><json:string>hydrothermal events</json:string><json:string>hydrothermal activity</json:string><json:string>mineral exploration</json:string><json:string>pyroclastic rocks</json:string><json:string>central aegean</json:string><json:string>hydrothermal system</json:string><json:string>geochemistry</json:string></teeft></keywords><author><json:item><name>Robert Marschik</name><affiliations><json:string>Department of Earth and Enviromental Sciences, Ludwig‐Maximilians Universität, München, Germany</json:string><json:string>E-mail: marschik@lmu.de</json:string></affiliations></json:item><json:item><name>Tobias Bauer</name><affiliations><json:string>Department of Earth and Enviromental Sciences, Ludwig‐Maximilians Universität, München, Germany</json:string></affiliations></json:item><json:item><name>Ana‐Sophie Hensler</name><affiliations><json:string>Department of Earth and Enviromental Sciences, Ludwig‐Maximilians Universität, München, Germany</json:string></affiliations></json:item><json:item><name>Nikos Skarpelis</name><affiliations><json:string>Department of Geology and Geoenvironment, University of Athens, Panepistimioupoli, Athens, Greece</json:string></affiliations></json:item><json:item><name>Stefan Hölzl</name><affiliations><json:string>Bayerische Staatssammlung für Paläontologie und Geologie, München, Germany</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>barite</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Cyclades archipelago</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>epithermal</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>galena</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>radiogenic isotopes</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>sphalerite</value></json:item></subject><articleId><json:string>RGE139</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>article</json:string></originalGenre><abstract>The Pb‐Zn‐Ba(‐Ag‐Au) mineralization in the Triades and Galana mine areas is hosted in 2.5–1.4 Ma pyroclastic rocks, and structurally controlled mostly by NE‐SW or N‐S trending brittle faults. Proximal pervasive silica and distal pervasive sericite‐illite alteration are the two main alteration types present at the surface. The distribution of mineralization‐alteration in the district suggests at least two hydrothermal events or that hydrothermal activity lasted longer at Galana. The Sr isotope signature of sphalerite and barite (87Sr/86Sr = 0.709162 to 0.710214) and calculated oxygen isotope composition of a fluid in equilibrium with barite and associated quartz at temperatures of around 230°C are suggestive of a seawater hydrothermal system and fluid/rock interaction. Lead isotope ratios of galena and sphalerite (206Pb/204Pb from 18.8384 to 18.8711; 207Pb/204Pb from 15.6695 to 15.6976; 208Pb/204Pb from 38.9158 to 39.0161) are similar to those of South Aegean Arc volcanic and Aegean Miocene plutonic rocks, and compatible with Pb derived from an igneous source. Galena and sphalerite from Triades‐Galana have δ34SVCDT values ranging from +1 to +3.6‰, whereas barite sulfate shows δ34SVCDT values from +22.8 to +24.4‰. The sulfur isotope signatures of these minerals are explained by seawater sulfate reduction processes. The new analytical data are consistent with a seawater‐dominated hydrothermal system and interaction of the hydrothermal fluid with the country rocks, which are the source of the ore metals.</abstract><qualityIndicators><score>7.616</score><pdfVersion>1.2</pdfVersion><pdfPageSize>595.216 x 793.701 pts</pdfPageSize><refBibsNative>true</refBibsNative><abstractCharCount>1525</abstractCharCount><pdfWordCount>5393</pdfWordCount><pdfCharCount>37505</pdfCharCount><pdfPageCount>13</pdfPageCount><abstractWordCount>218</abstractWordCount></qualityIndicators><title>Isotope Geochemistry of the Pb‐Zn‐Ba(‐Ag‐Au) Mineralization at Triades‐Galana, Milos Island, Greece</title><genre><json:string>article</json:string></genre><host><title>Resource Geology</title><language><json:string>unknown</json:string></language><doi><json:string>10.1111/(ISSN)1751-3928</json:string></doi><issn><json:string>1344-1698</json:string></issn><eissn><json:string>1751-3928</json:string></eissn><publisherId><json:string>RGE</json:string></publisherId><volume>60</volume><issue>4</issue><pages><first>335</first><last>347</last><total>13</total></pages><genre><json:string>journal</json:string></genre></host><categories><wos><json:string>science</json:string><json:string>mineralogy</json:string><json:string>geology</json:string></wos><scienceMetrix><json:string>natural sciences</json:string><json:string>earth & environmental sciences</json:string><json:string>geochemistry & geophysics</json:string></scienceMetrix><inist><json:string>sciences appliquees, technologies et medecines</json:string><json:string>sciences exactes et technologie</json:string><json:string>terre, ocean, espace</json:string><json:string>sciences de la terre</json:string></inist></categories><publicationDate>2010</publicationDate><copyrightDate>2010</copyrightDate><doi><json:string>10.1111/j.1751-3928.2010.00139.x</json:string></doi><id>53AA336A54BE355F90B11CBA34F752D12CB506E5</id><score>1</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/53AA336A54BE355F90B11CBA34F752D12CB506E5/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/53AA336A54BE355F90B11CBA34F752D12CB506E5/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/53AA336A54BE355F90B11CBA34F752D12CB506E5/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main">Isotope Geochemistry of the Pb‐Zn‐Ba(‐Ag‐Au) Mineralization at Triades‐Galana, Milos Island, Greece</title></titleStmt><publicationStmt><publisher>Blackwell Publishing Asia</publisher><pubPlace>Melbourne, Australia</pubPlace><availability><licence>© 2010 The Authors. Resource Geology © 2010 The Society of Resource Geology</licence></availability><date type="published" when="2010-12"></date></publicationStmt><notesStmt><note type="content-type" subtype="article" source="article" scheme="https://content-type.data.istex.fr/ark:/67375/XTP-6N5SZHKN-D">article</note><note type="publication-type" subtype="journal" scheme="https://publication-type.data.istex.fr/ark:/67375/JMC-0GLKJH51-B">journal</note></notesStmt><sourceDesc><biblStruct type="article"><analytic><title level="a" type="main">Isotope Geochemistry of the Pb‐Zn‐Ba(‐Ag‐Au) Mineralization at Triades‐Galana, Milos Island, Greece</title><title level="a" type="short">Triades‐Galana Pb‐Zn‐Ba Mineralization</title><author xml:id="author-0000" role="corresp"><persName><forename type="first">Robert</forename><surname>Marschik</surname></persName><affiliation>Department of Earth and Enviromental Sciences, Ludwig‐Maximilians Universität, München, Germany<address><country key="DE"></country></address></affiliation><affiliation>Professor Dr R. MARSCHIK, Department of Earth and Environmental Sciences, Ludwig‐Maximilians Universität, Luisenstrasse 37, 80333 München, Germany. Email: marschik@lmu.de</affiliation></author><author xml:id="author-0001"><persName><forename type="first">Tobias</forename><surname>Bauer</surname></persName><affiliation>Department of Earth and Enviromental Sciences, Ludwig‐Maximilians Universität, München, Germany<address><country key="DE"></country></address></affiliation></author><author xml:id="author-0002"><persName><forename type="first">Ana‐Sophie</forename><surname>Hensler</surname></persName><affiliation>Department of Earth and Enviromental Sciences, Ludwig‐Maximilians Universität, München, Germany<address><country key="DE"></country></address></affiliation></author><author xml:id="author-0003"><persName><forename type="first">Nikos</forename><surname>Skarpelis</surname></persName><affiliation>Department of Geology and Geoenvironment, University of Athens, Panepistimioupoli, Athens, Greece<address><country key="GR"></country></address></affiliation></author><author xml:id="author-0004"><persName><forename type="first">Stefan</forename><surname>Hölzl</surname></persName><affiliation>Bayerische Staatssammlung für Paläontologie und Geologie, München, Germany<address><country key="DE"></country></address></affiliation></author><idno type="istex">53AA336A54BE355F90B11CBA34F752D12CB506E5</idno><idno type="DOI">10.1111/j.1751-3928.2010.00139.x</idno><idno type="unit">RGE139</idno><idno type="toTypesetVersion">file:RGE.RGE139.pdf</idno></analytic><monogr><title level="j" type="main">Resource Geology</title><title level="j" type="alt">RESOURCE GEOLOGY</title><idno type="pISSN">1344-1698</idno><idno type="eISSN">1751-3928</idno><idno type="book-DOI">10.1111/(ISSN)1751-3928</idno><idno type="book-part-DOI">10.1111/rge.2010.60.issue-4</idno><idno type="product">RGE</idno><idno type="publisherDivision">ST</idno><imprint><biblScope unit="vol">60</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="335">335</biblScope><biblScope unit="page" to="347">347</biblScope><biblScope unit="page-count">13</biblScope><publisher>Blackwell Publishing Asia</publisher><pubPlace>Melbourne, Australia</pubPlace><date type="published" when="2010-12"></date></imprint></monogr></biblStruct></sourceDesc></fileDesc><profileDesc><abstract xml:lang="en" style="main"><head>Abstract</head><p>The Pb‐Zn‐Ba(‐Ag‐Au) mineralization in the Triades and Galana mine areas is hosted in 2.5–1.4 Ma pyroclastic rocks, and structurally controlled mostly by NE‐SW or N‐S trending brittle faults. Proximal pervasive silica and distal pervasive sericite‐illite alteration are the two main alteration types present at the surface. The distribution of mineralization‐alteration in the district suggests at least two hydrothermal events or that hydrothermal activity lasted longer at Galana. The Sr isotope signature of sphalerite and barite (<hi rend="superscript">87</hi>Sr/<hi rend="superscript">86</hi>Sr = 0.709162 to 0.710214) and calculated oxygen isotope composition of a fluid in equilibrium with barite and associated quartz at temperatures of around 230°C are suggestive of a seawater hydrothermal system and fluid/rock interaction. Lead isotope ratios of galena and sphalerite (<hi rend="superscript">206</hi>Pb/<hi rend="superscript">204</hi>Pb from 18.8384 to 18.8711; <hi rend="superscript">207</hi>Pb/<hi rend="superscript">204</hi>Pb from 15.6695 to 15.6976; <hi rend="superscript">208</hi>Pb/<hi rend="superscript">204</hi>Pb from 38.9158 to 39.0161) are similar to those of South Aegean Arc volcanic and Aegean Miocene plutonic rocks, and compatible with Pb derived from an igneous source. Galena and sphalerite from Triades‐Galana have δ<hi rend="superscript">34</hi>S<hi rend="subscript">VCDT</hi> values ranging from +1 to +3.6‰, whereas barite sulfate shows δ<hi rend="superscript">34</hi>S<hi rend="subscript">VCDT</hi> values from +22.8 to +24.4‰. The sulfur isotope signatures of these minerals are explained by seawater sulfate reduction processes. The new analytical data are consistent with a seawater‐dominated hydrothermal system and interaction of the hydrothermal fluid with the country rocks, which are the source of the ore metals.</p></abstract><textClass><keywords xml:lang="en"><term xml:id="k1">barite</term><term xml:id="k2">Cyclades archipelago</term><term xml:id="k3">epithermal</term><term xml:id="k4">galena</term><term xml:id="k5">radiogenic isotopes</term><term xml:id="k6">sphalerite</term></keywords><classCode scheme="tocHeading1">Original Articles</classCode></textClass><langUsage><language ident="EN"></language></langUsage></profileDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/53AA336A54BE355F90B11CBA34F752D12CB506E5/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>Blackwell Publishing Asia</publisherName><publisherLoc>Melbourne, Australia</publisherLoc></publisherInfo><doi origin="wiley" registered="yes">10.1111/(ISSN)1751-3928</doi><issn type="print">1344-1698</issn><issn type="electronic">1751-3928</issn><idGroup><id type="product" value="RGE"></id><id type="publisherDivision" value="ST"></id></idGroup><titleGroup><title type="main" sort="RESOURCE GEOLOGY">Resource Geology</title></titleGroup></publicationMeta><publicationMeta level="part" position="12104"><doi origin="wiley">10.1111/rge.2010.60.issue-4</doi><numberingGroup><numbering type="journalVolume" number="60">60</numbering><numbering type="journalIssue" number="4">4</numbering></numberingGroup><coverDate startDate="2010-12">December 2010</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="2" status="forIssue"><doi origin="wiley">10.1111/j.1751-3928.2010.00139.x</doi><idGroup><id type="unit" value="RGE139"></id></idGroup><countGroup><count type="pageTotal" number="13"></count></countGroup><titleGroup><title type="tocHeading1">Original Articles</title></titleGroup><copyright>© 2010 The Authors. Resource Geology © 2010 The Society of Resource Geology</copyright><eventGroup><event type="xmlConverted" agent="Converter:BPG_TO_WML3G version:2.3.27 mode:FullText" date="2010-11-23"></event><event type="firstOnline" date="2010-11-23"></event><event type="publishedOnlineFinalForm" date="2010-11-23"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-02-08"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-11-03"></event></eventGroup><numberingGroup><numbering type="pageFirst" number="335">335</numbering><numbering type="pageLast" number="347">347</numbering></numberingGroup><correspondenceTo>Professor Dr R. MARSCHIK, Department of Earth and Environmental Sciences, Ludwig‐Maximilians Universität, Luisenstrasse 37, 80333 München, Germany. Email: <email>marschik@lmu.de</email></correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:RGE.RGE139.pdf"></link></linkGroup></publicationMeta><contentMeta><unparsedEditorialHistory>Received 5 August 2009. Accepted for publication 9 March 2010.</unparsedEditorialHistory><countGroup><count type="figureTotal" number="6"></count><count type="tableTotal" number="4"></count><count type="formulaTotal" number="0"></count><count type="referenceTotal" number="44"></count><count type="wordTotal" number="6689"></count><count type="linksPubMed" number="0"></count><count type="linksCrossRef" number="0"></count></countGroup><titleGroup><title type="main">Isotope Geochemistry of the Pb‐Zn‐Ba(‐Ag‐Au) Mineralization at Triades‐Galana, Milos Island, Greece</title><title type="shortAuthors">R. Marschik <i>et al</i>.</title><title type="short">Triades‐Galana Pb‐Zn‐Ba Mineralization</title></titleGroup><creators><creator creatorRole="author" xml:id="cr1" affiliationRef="#a1" corresponding="yes"><personName><givenNames>Robert</givenNames><familyName>Marschik</familyName></personName></creator><creator creatorRole="author" xml:id="cr2" affiliationRef="#a1"><personName><givenNames>Tobias</givenNames><familyName>Bauer</familyName></personName></creator><creator creatorRole="author" xml:id="cr3" affiliationRef="#a1"><personName><givenNames>Ana‐Sophie</givenNames><familyName>Hensler</familyName></personName></creator><creator creatorRole="author" xml:id="cr4" affiliationRef="#a2"><personName><givenNames>Nikos</givenNames><familyName>Skarpelis</familyName></personName></creator><creator creatorRole="author" xml:id="cr5" affiliationRef="#a3"><personName><givenNames>Stefan</givenNames><familyName>Hölzl</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="a1" countryCode="DE"><unparsedAffiliation>Department of Earth and Enviromental Sciences, Ludwig‐Maximilians Universität, München, Germany</unparsedAffiliation></affiliation><affiliation xml:id="a2" countryCode="GR"><unparsedAffiliation>Department of Geology and Geoenvironment, University of Athens, Panepistimioupoli, Athens, Greece</unparsedAffiliation></affiliation><affiliation xml:id="a3" countryCode="DE"><unparsedAffiliation>Bayerische Staatssammlung für Paläontologie und Geologie, München, Germany</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en"><keyword xml:id="k1">barite</keyword><keyword xml:id="k2">Cyclades archipelago</keyword><keyword xml:id="k3">epithermal</keyword><keyword xml:id="k4">galena</keyword><keyword xml:id="k5">radiogenic isotopes</keyword><keyword xml:id="k6">sphalerite</keyword></keywordGroup><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title><p>The Pb‐Zn‐Ba(‐Ag‐Au) mineralization in the Triades and Galana mine areas is hosted in 2.5–1.4 Ma pyroclastic rocks, and structurally controlled mostly by NE‐SW or N‐S trending brittle faults. Proximal pervasive silica and distal pervasive sericite‐illite alteration are the two main alteration types present at the surface. The distribution of mineralization‐alteration in the district suggests at least two hydrothermal events or that hydrothermal activity lasted longer at Galana. The Sr isotope signature of sphalerite and barite (<sup>87</sup>Sr/<sup>86</sup>Sr = 0.709162 to 0.710214) and calculated oxygen isotope composition of a fluid in equilibrium with barite and associated quartz at temperatures of around 230°C are suggestive of a seawater hydrothermal system and fluid/rock interaction. Lead isotope ratios of galena and sphalerite (<sup>206</sup>Pb/<sup>204</sup>Pb from 18.8384 to 18.8711; <sup>207</sup>Pb/<sup>204</sup>Pb from 15.6695 to 15.6976; <sup>208</sup>Pb/<sup>204</sup>Pb from 38.9158 to 39.0161) are similar to those of South Aegean Arc volcanic and Aegean Miocene plutonic rocks, and compatible with Pb derived from an igneous source. Galena and sphalerite from Triades‐Galana have δ<sup>34</sup>S<sub>VCDT</sub> values ranging from +1 to +3.6‰, whereas barite sulfate shows δ<sup>34</sup>S<sub>VCDT</sub> values from +22.8 to +24.4‰. The sulfur isotope signatures of these minerals are explained by seawater sulfate reduction processes. The new analytical data are consistent with a seawater‐dominated hydrothermal system and interaction of the hydrothermal fluid with the country rocks, which are the source of the ore metals.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Isotope Geochemistry of the Pb‐Zn‐Ba(‐Ag‐Au) Mineralization at Triades‐Galana, Milos Island, Greece</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Triades‐Galana Pb‐Zn‐Ba Mineralization</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Isotope Geochemistry of the Pb‐Zn‐Ba(‐Ag‐Au) Mineralization at Triades‐Galana, Milos Island, Greece</title></titleInfo><name type="personal"><namePart type="given">Robert</namePart><namePart type="family">Marschik</namePart><affiliation>Department of Earth and Enviromental Sciences, Ludwig‐Maximilians Universität, München, Germany</affiliation><affiliation>E-mail: marschik@lmu.de</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Tobias</namePart><namePart type="family">Bauer</namePart><affiliation>Department of Earth and Enviromental Sciences, Ludwig‐Maximilians Universität, München, Germany</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Ana‐Sophie</namePart><namePart type="family">Hensler</namePart><affiliation>Department of Earth and Enviromental Sciences, Ludwig‐Maximilians Universität, München, Germany</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Nikos</namePart><namePart type="family">Skarpelis</namePart><affiliation>Department of Geology and Geoenvironment, University of Athens, Panepistimioupoli, Athens, Greece</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Stefan</namePart><namePart type="family">Hölzl</namePart><affiliation>Bayerische Staatssammlung für Paläontologie und Geologie, München, Germany</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Blackwell Publishing Asia</publisher><place><placeTerm type="text">Melbourne, Australia</placeTerm></place><dateIssued encoding="w3cdtf">2010-12</dateIssued><edition>Received 5 August 2009. Accepted for publication 9 March 2010.</edition><copyrightDate encoding="w3cdtf">2010</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">6</extent><extent unit="tables">4</extent><extent unit="references">44</extent><extent unit="words">6689</extent></physicalDescription><abstract lang="en">The Pb‐Zn‐Ba(‐Ag‐Au) mineralization in the Triades and Galana mine areas is hosted in 2.5–1.4 Ma pyroclastic rocks, and structurally controlled mostly by NE‐SW or N‐S trending brittle faults. Proximal pervasive silica and distal pervasive sericite‐illite alteration are the two main alteration types present at the surface. The distribution of mineralization‐alteration in the district suggests at least two hydrothermal events or that hydrothermal activity lasted longer at Galana. The Sr isotope signature of sphalerite and barite (87Sr/86Sr = 0.709162 to 0.710214) and calculated oxygen isotope composition of a fluid in equilibrium with barite and associated quartz at temperatures of around 230°C are suggestive of a seawater hydrothermal system and fluid/rock interaction. Lead isotope ratios of galena and sphalerite (206Pb/204Pb from 18.8384 to 18.8711; 207Pb/204Pb from 15.6695 to 15.6976; 208Pb/204Pb from 38.9158 to 39.0161) are similar to those of South Aegean Arc volcanic and Aegean Miocene plutonic rocks, and compatible with Pb derived from an igneous source. Galena and sphalerite from Triades‐Galana have δ34SVCDT values ranging from +1 to +3.6‰, whereas barite sulfate shows δ34SVCDT values from +22.8 to +24.4‰. The sulfur isotope signatures of these minerals are explained by seawater sulfate reduction processes. The new analytical data are consistent with a seawater‐dominated hydrothermal system and interaction of the hydrothermal fluid with the country rocks, which are the source of the ore metals.</abstract><subject lang="en"><genre>keywords</genre><topic>barite</topic><topic>Cyclades archipelago</topic><topic>epithermal</topic><topic>galena</topic><topic>radiogenic isotopes</topic><topic>sphalerite</topic></subject><relatedItem type="host"><titleInfo><title>Resource Geology</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">1344-1698</identifier><identifier type="eISSN">1751-3928</identifier><identifier type="DOI">10.1111/(ISSN)1751-3928</identifier><identifier type="PublisherID">RGE</identifier><part><date>2010</date><detail type="volume"><caption>vol.</caption><number>60</number></detail><detail type="issue"><caption>no.</caption><number>4</number></detail><extent unit="pages"><start>335</start><end>347</end><total>13</total></extent></part></relatedItem><identifier type="istex">53AA336A54BE355F90B11CBA34F752D12CB506E5</identifier><identifier type="DOI">10.1111/j.1751-3928.2010.00139.x</identifier><identifier type="ArticleID">RGE139</identifier><accessCondition type="use and reproduction" contentType="copyright">© 2010 The Authors. 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