Hydrothermal metallogenic processes off the islands of Nisiros and Kos in the Hellenic Volcanic Arc
Identifieur interne : 000404 ( Main/Curation ); précédent : 000403; suivant : 000405Hydrothermal metallogenic processes off the islands of Nisiros and Kos in the Hellenic Volcanic Arc
Auteurs : S. P Varnavas [Grèce] ; D. S Cronan [Royaume-Uni]Source :
- Marine Geology [ 0025-3227 ] ; 1991.
Descripteurs français
- Pascal (Inist)
- Analyse chimique, Analyse majeurs, Analyse mineurs, Arc insulaire, Arc volcanique, Cheminée hydrothermale, Condition hydrothermale, Fer substance, Grèce, Hydrochimie, Ile Kos, Ile Nisiros, Ile Yali, Iles Dodécanèse, Manganèse substance, Mer Egée, Métallogénie, Source sous marine, Sulfure, Sédiment marin, Zinc substance.
- Wicri :
English descriptors
- KwdEn :
- Acetic, Acetic acid, Acta, Aegean Sea, Aegean region, Aegean shelf sediments, Aegean world, Areal, Areal distribution, Areal variations, Average value, Bostr6m, Carbonate, Chemical analysis, Chemical composition, Concentration levels, Cosmochim, Cronan, Datum, Dodecanese, Earth planet, Eastern mediterranean, Eastern part, Edmond, Embayment, Enrichment, Exhalative, Fine fraction, Fine fractions, Galapagos, Geochemical, Geochemical behaviour, Geochemistry, Geochim, Geol, Greater amounts, Greece, Guaymas basin, Heavy metals, Higher ratios, Highest concentrations, Hydrochemistry, Hydrothermal, Hydrothermal alteration, Hydrothermal chimneys, Hydrothermal condition, Hydrothermal conditions, Hydrothermal fields, Hydrothermal metalliferous sediments, Hydrothermal metallogenetic processess, Hydrothermal solutions, Hydrothermal vents, Hydrothermal waters, Hydroxylamine, Hydroxylamine fraction, Hydroxylamine fractions, Inner part, Iron ores, Island arc, Kameni, Kephalos, Major elements, Manganese, Manganese ores, Marine sediments, Metal sulphides, Metalliferous, Metalliferous sediments, Metallogenetic, Metallogeny, Minor elements, Moorby, Negative correlation, Nisiros, Normal seawater, Outer part, Outer zone, Partition geochemistry, Peckett, Precipitation, Processess, Same point, Santorini, Santorini embayments, Santorini hydrothermal field, Santorini volcano, Seafloor, Seawater, Sediment, Sediment samples, Southern aegean, Submarine hydrothermal solutions, Submarine springs, Sulfides, Sulphide, Thera, Trace elements, Varnavas, Vent area, Vent areas, Volcanic arcs, Volcanic rocks, Water samples, Yali, Yali sediments, Zinc ores.
- Teeft :
- Acetic, Acetic acid, Acta, Aegean region, Aegean shelf sediments, Aegean world, Areal, Areal distribution, Areal variations, Average value, Bostr6m, Carbonate, Chemical composition, Concentration levels, Cosmochim, Cronan, Datum, Earth planet, Eastern mediterranean, Eastern part, Edmond, Embayment, Enrichment, Exhalative, Fine fraction, Fine fractions, Galapagos, Geochemical, Geochemical behaviour, Geochemistry, Geochim, Geol, Greater amounts, Guaymas basin, Heavy metals, Higher ratios, Highest concentrations, Hydrothermal, Hydrothermal alteration, Hydrothermal fields, Hydrothermal metalliferous sediments, Hydrothermal metallogenetic processess, Hydrothermal solutions, Hydrothermal vents, Hydrothermal waters, Hydroxylamine, Hydroxylamine fraction, Hydroxylamine fractions, Inner part, Kameni, Kephalos, Manganese, Metal sulphides, Metalliferous, Metalliferous sediments, Metallogenetic, Moorby, Negative correlation, Nisiros, Normal seawater, Outer part, Outer zone, Partition geochemistry, Peckett, Precipitation, Processess, Same point, Santorini, Santorini embayments, Santorini hydrothermal field, Santorini volcano, Seafloor, Seawater, Sediment, Sediment samples, Southern aegean, Submarine hydrothermal solutions, Sulphide, Thera, Trace elements, Varnavas, Vent area, Vent areas, Volcanic rocks, Water samples, Yali, Yali sediments.
Abstract
Abstract: Two submarine hydrothermal fields off Nisiros and Kos islands in the eastern sector of the Hellenic Volcanic Arc have been investigated using analyses of submarine hydrothermal waters and sediments. Both the waters and the sediments were found to be enriched in Fe, Mn and Zn, together with As, Mo and V in the sediments only, resulting from seawater-rock interaction processes similar to those described from mid-ocean ridge systems. Differences found between the products of these processes in the two hydrothermal fields studied reflect differences between the rock types being leached, the physiographic and geological conditions present including the thickness and composition of the sediment column above the volcanic rocks, and the rates of mixing of hydrothermal solutions with normal seawater.The geochemical features described support possible sub-seafloor formation of metal sulphides at both of the hydrothermal fields studied.
Url:
DOI: 10.1016/0025-3227(91)90086-J
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shelf sediments</term><term>Aegean world</term><term>Areal</term><term>Areal distribution</term><term>Areal variations</term><term>Average value</term><term>Bostr6m</term><term>Carbonate</term><term>Chemical analysis</term><term>Chemical composition</term><term>Concentration levels</term><term>Cosmochim</term><term>Cronan</term><term>Datum</term><term>Dodecanese</term><term>Earth planet</term><term>Eastern mediterranean</term><term>Eastern part</term><term>Edmond</term><term>Embayment</term><term>Enrichment</term><term>Exhalative</term><term>Fine fraction</term><term>Fine fractions</term><term>Galapagos</term><term>Geochemical</term><term>Geochemical behaviour</term><term>Geochemistry</term><term>Geochim</term><term>Geol</term><term>Greater amounts</term><term>Greece</term><term>Guaymas basin</term><term>Heavy metals</term><term>Higher ratios</term><term>Highest concentrations</term><term>Hydrochemistry</term><term>Hydrothermal</term><term>Hydrothermal alteration</term><term>Hydrothermal chimneys</term><term>Hydrothermal condition</term><term>Hydrothermal conditions</term><term>Hydrothermal fields</term><term>Hydrothermal metalliferous sediments</term><term>Hydrothermal metallogenetic processess</term><term>Hydrothermal solutions</term><term>Hydrothermal vents</term><term>Hydrothermal waters</term><term>Hydroxylamine</term><term>Hydroxylamine fraction</term><term>Hydroxylamine fractions</term><term>Inner part</term><term>Iron ores</term><term>Island arc</term><term>Kameni</term><term>Kephalos</term><term>Major elements</term><term>Manganese</term><term>Manganese ores</term><term>Marine sediments</term><term>Metal sulphides</term><term>Metalliferous</term><term>Metalliferous sediments</term><term>Metallogenetic</term><term>Metallogeny</term><term>Minor elements</term><term>Moorby</term><term>Negative correlation</term><term>Nisiros</term><term>Normal seawater</term><term>Outer part</term><term>Outer zone</term><term>Partition 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substance</term><term>Grèce</term><term>Hydrochimie</term><term>Ile Kos</term><term>Ile Nisiros</term><term>Ile Yali</term><term>Iles Dodécanèse</term><term>Manganèse substance</term><term>Mer Egée</term><term>Métallogénie</term><term>Source sous marine</term><term>Sulfure</term><term>Sédiment marin</term><term>Zinc substance</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Acetic</term><term>Acetic acid</term><term>Acta</term><term>Aegean region</term><term>Aegean shelf sediments</term><term>Aegean world</term><term>Areal</term><term>Areal distribution</term><term>Areal variations</term><term>Average value</term><term>Bostr6m</term><term>Carbonate</term><term>Chemical composition</term><term>Concentration levels</term><term>Cosmochim</term><term>Cronan</term><term>Datum</term><term>Earth planet</term><term>Eastern mediterranean</term><term>Eastern part</term><term>Edmond</term><term>Embayment</term><term>Enrichment</term><term>Exhalative</term><term>Fine 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seawater</term><term>Outer part</term><term>Outer zone</term><term>Partition geochemistry</term><term>Peckett</term><term>Precipitation</term><term>Processess</term><term>Same point</term><term>Santorini</term><term>Santorini embayments</term><term>Santorini hydrothermal field</term><term>Santorini volcano</term><term>Seafloor</term><term>Seawater</term><term>Sediment</term><term>Sediment samples</term><term>Southern aegean</term><term>Submarine hydrothermal solutions</term><term>Sulphide</term><term>Thera</term><term>Trace elements</term><term>Varnavas</term><term>Vent area</term><term>Vent areas</term><term>Volcanic rocks</term><term>Water samples</term><term>Yali</term><term>Yali sediments</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Grèce</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Géochimie</term><term>Manganèse</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Two submarine hydrothermal fields off Nisiros and Kos islands in the eastern sector of the Hellenic Volcanic Arc have been investigated using analyses of submarine hydrothermal waters and sediments. Both the waters and the sediments were found to be enriched in Fe, Mn and Zn, together with As, Mo and V in the sediments only, resulting from seawater-rock interaction processes similar to those described from mid-ocean ridge systems. Differences found between the products of these processes in the two hydrothermal fields studied reflect differences between the rock types being leached, the physiographic and geological conditions present including the thickness and composition of the sediment column above the volcanic rocks, and the rates of mixing of hydrothermal solutions with normal seawater.The geochemical features described support possible sub-seafloor formation of metal sulphides at both of the hydrothermal fields studied.</div></front></TEI><double idat="0025-3227:1991:Varnavas S:hydrothermal:metallogenic:processes"><INIST><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Hydrothermal metallogenic processes off the islands of Nisiros and Kos in the Hellenic Volcanic Arc</title><author><name sortKey="Varnavas, S P" sort="Varnavas, S P" uniqKey="Varnavas S" first="S. P." last="Varnavas">S. P. Varnavas</name></author><author><name sortKey="Cronan, D S" sort="Cronan, D S" uniqKey="Cronan D" first="D. S." last="Cronan">D. S. Cronan</name></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">91-0594101</idno><date when="1991">1991</date><idno type="stanalyst">PASCAL 91-0594101 INIST</idno><idno type="RBID">Pascal:91-0594101</idno><idno type="wicri:Area/PascalFrancis/Corpus">000064</idno><idno type="wicri:Area/PascalFrancis/Curation">000060</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000061</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000061</idno><idno type="wicri:doubleKey">0025-3227:1991:Varnavas S:hydrothermal:metallogenic:processes</idno><idno type="wicri:Area/Main/Merge">000437</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Hydrothermal metallogenic processes off the islands of Nisiros and Kos in the Hellenic Volcanic Arc</title><author><name sortKey="Varnavas, S P" sort="Varnavas, S P" uniqKey="Varnavas S" first="S. P." last="Varnavas">S. P. Varnavas</name></author><author><name sortKey="Cronan, D S" sort="Cronan, D S" uniqKey="Cronan D" first="D. S." last="Cronan">D. S. Cronan</name></author></analytic><series><title level="j" type="main">Marine geology</title><title level="j" type="abbreviated">Mar. geol.</title><idno type="ISSN">0025-3227</idno><imprint><date when="1991">1991</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Marine geology</title><title level="j" type="abbreviated">Mar. geol.</title><idno type="ISSN">0025-3227</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aegean Sea</term><term>Chemical analysis</term><term>Chemical composition</term><term>Dodecanese</term><term>Greece</term><term>Hydrochemistry</term><term>Hydrothermal chimneys</term><term>Hydrothermal condition</term><term>Hydrothermal conditions</term><term>Iron ores</term><term>Island arc</term><term>Major elements</term><term>Manganese ores</term><term>Marine sediments</term><term>Metallogeny</term><term>Minor elements</term><term>Submarine springs</term><term>Sulfides</term><term>Volcanic arcs</term><term>Zinc ores</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Condition hydrothermale</term><term>Source sous marine</term><term>Arc insulaire</term><term>Hydrochimie</term><term>Sulfure</term><term>Analyse chimique</term><term>Mer Egée</term><term>Grèce</term><term>Sédiment marin</term><term>Ile Kos</term><term>Ile Yali</term><term>Ile Nisiros</term><term>Métallogénie</term><term>Cheminée hydrothermale</term><term>Arc volcanique</term><term>Analyse majeurs</term><term>Analyse mineurs</term><term>Fer substance</term><term>Manganèse substance</term><term>Iles Dodécanèse</term><term>Zinc substance</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Grèce</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Two submarine hydrothermal fields off Nisiros and Kos islands in the eastern sector of the Hellenic Volcanic Arc have been investigated using analyses of submarine hydrothermal waters and sediments. Both the waters and the sediments were found to be enriched in Fe, Mn and Zn, together with As, Mo and V in the sediments only, resulting from seawater-rock interaction processes similar to those described from mid-ocean ridge systems. Differences found between the products of these processes in the two hydrothermal fields studied reflect differences between the rock types being leached, the physiographic and geological conditions present including the thickness and composition of the sediment column above the volcanic rocks, and the rates of mixing of hydrothermal solutions with normal seawater</div></front></TEI></INIST><ISTEX><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>Hydrothermal metallogenic processes off the islands of Nisiros and Kos in the Hellenic Volcanic Arc</title><author><name sortKey="Varnavas, S P" sort="Varnavas, S P" uniqKey="Varnavas S" first="S. P" last="Varnavas">S. P Varnavas</name></author><author><name sortKey="Cronan, D S" sort="Cronan, D S" uniqKey="Cronan D" first="D. S" last="Cronan">D. S Cronan</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:9512BE2BC2A020D2C7E67725499B591BB034EE5A</idno><date when="1991" year="1991">1991</date><idno type="doi">10.1016/0025-3227(91)90086-J</idno><idno type="url">https://api.istex.fr/document/9512BE2BC2A020D2C7E67725499B591BB034EE5A/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000003</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000003</idno><idno type="wicri:Area/Istex/Curation">000003</idno><idno type="wicri:Area/Istex/Checkpoint">000334</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000334</idno><idno type="wicri:doubleKey">0025-3227:1991:Varnavas S:hydrothermal:metallogenic:processes</idno><idno type="wicri:Area/Main/Merge">000418</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">Hydrothermal metallogenic processes off the islands of Nisiros and Kos in the Hellenic Volcanic Arc</title><author><name sortKey="Varnavas, S P" sort="Varnavas, S P" uniqKey="Varnavas S" first="S. P" last="Varnavas">S. P Varnavas</name><affiliation wicri:level="1"><country xml:lang="fr">Grèce</country><wicri:regionArea>Department of Geology, University of Patras, Patras</wicri:regionArea><wicri:noRegion>Patras</wicri:noRegion></affiliation></author><author><name sortKey="Cronan, D S" sort="Cronan, D S" uniqKey="Cronan D" first="D. S" last="Cronan">D. S Cronan</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Geology, Imperial College, London SW7 2BP</wicri:regionArea><wicri:noRegion>London SW7 2BP</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Marine Geology</title><title level="j" type="abbrev">MARGO</title><idno type="ISSN">0025-3227</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1991">1991</date><biblScope unit="volume">99</biblScope><biblScope unit="issue">1–2</biblScope><biblScope unit="page" from="109">109</biblScope><biblScope unit="page" to="133">133</biblScope></imprint><idno type="ISSN">0025-3227</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0025-3227</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acetic</term><term>Acetic acid</term><term>Acta</term><term>Aegean region</term><term>Aegean shelf sediments</term><term>Aegean world</term><term>Areal</term><term>Areal distribution</term><term>Areal variations</term><term>Average value</term><term>Bostr6m</term><term>Carbonate</term><term>Chemical composition</term><term>Concentration levels</term><term>Cosmochim</term><term>Cronan</term><term>Datum</term><term>Earth planet</term><term>Eastern mediterranean</term><term>Eastern part</term><term>Edmond</term><term>Embayment</term><term>Enrichment</term><term>Exhalative</term><term>Fine fraction</term><term>Fine fractions</term><term>Galapagos</term><term>Geochemical</term><term>Geochemical behaviour</term><term>Geochemistry</term><term>Geochim</term><term>Geol</term><term>Greater amounts</term><term>Guaymas basin</term><term>Heavy metals</term><term>Higher ratios</term><term>Highest concentrations</term><term>Hydrothermal</term><term>Hydrothermal alteration</term><term>Hydrothermal fields</term><term>Hydrothermal metalliferous sediments</term><term>Hydrothermal metallogenetic processess</term><term>Hydrothermal solutions</term><term>Hydrothermal vents</term><term>Hydrothermal waters</term><term>Hydroxylamine</term><term>Hydroxylamine fraction</term><term>Hydroxylamine fractions</term><term>Inner part</term><term>Kameni</term><term>Kephalos</term><term>Manganese</term><term>Metal sulphides</term><term>Metalliferous</term><term>Metalliferous sediments</term><term>Metallogenetic</term><term>Moorby</term><term>Negative correlation</term><term>Nisiros</term><term>Normal seawater</term><term>Outer part</term><term>Outer zone</term><term>Partition geochemistry</term><term>Peckett</term><term>Precipitation</term><term>Processess</term><term>Same point</term><term>Santorini</term><term>Santorini embayments</term><term>Santorini hydrothermal field</term><term>Santorini volcano</term><term>Seafloor</term><term>Seawater</term><term>Sediment</term><term>Sediment samples</term><term>Southern aegean</term><term>Submarine hydrothermal solutions</term><term>Sulphide</term><term>Thera</term><term>Trace elements</term><term>Varnavas</term><term>Vent area</term><term>Vent areas</term><term>Volcanic rocks</term><term>Water samples</term><term>Yali</term><term>Yali sediments</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Acetic</term><term>Acetic acid</term><term>Acta</term><term>Aegean region</term><term>Aegean shelf sediments</term><term>Aegean world</term><term>Areal</term><term>Areal distribution</term><term>Areal variations</term><term>Average value</term><term>Bostr6m</term><term>Carbonate</term><term>Chemical composition</term><term>Concentration levels</term><term>Cosmochim</term><term>Cronan</term><term>Datum</term><term>Earth planet</term><term>Eastern mediterranean</term><term>Eastern part</term><term>Edmond</term><term>Embayment</term><term>Enrichment</term><term>Exhalative</term><term>Fine fraction</term><term>Fine fractions</term><term>Galapagos</term><term>Geochemical</term><term>Geochemical behaviour</term><term>Geochemistry</term><term>Geochim</term><term>Geol</term><term>Greater amounts</term><term>Guaymas basin</term><term>Heavy metals</term><term>Higher ratios</term><term>Highest concentrations</term><term>Hydrothermal</term><term>Hydrothermal alteration</term><term>Hydrothermal fields</term><term>Hydrothermal metalliferous sediments</term><term>Hydrothermal metallogenetic processess</term><term>Hydrothermal solutions</term><term>Hydrothermal vents</term><term>Hydrothermal waters</term><term>Hydroxylamine</term><term>Hydroxylamine fraction</term><term>Hydroxylamine fractions</term><term>Inner part</term><term>Kameni</term><term>Kephalos</term><term>Manganese</term><term>Metal sulphides</term><term>Metalliferous</term><term>Metalliferous sediments</term><term>Metallogenetic</term><term>Moorby</term><term>Negative correlation</term><term>Nisiros</term><term>Normal seawater</term><term>Outer part</term><term>Outer zone</term><term>Partition geochemistry</term><term>Peckett</term><term>Precipitation</term><term>Processess</term><term>Same point</term><term>Santorini</term><term>Santorini embayments</term><term>Santorini hydrothermal field</term><term>Santorini volcano</term><term>Seafloor</term><term>Seawater</term><term>Sediment</term><term>Sediment samples</term><term>Southern aegean</term><term>Submarine hydrothermal solutions</term><term>Sulphide</term><term>Thera</term><term>Trace elements</term><term>Varnavas</term><term>Vent area</term><term>Vent areas</term><term>Volcanic rocks</term><term>Water samples</term><term>Yali</term><term>Yali sediments</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Géochimie</term><term>Manganèse</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Two submarine hydrothermal fields off Nisiros and Kos islands in the eastern sector of the Hellenic Volcanic Arc have been investigated using analyses of submarine hydrothermal waters and sediments. Both the waters and the sediments were found to be enriched in Fe, Mn and Zn, together with As, Mo and V in the sediments only, resulting from seawater-rock interaction processes similar to those described from mid-ocean ridge systems. Differences found between the products of these processes in the two hydrothermal fields studied reflect differences between the rock types being leached, the physiographic and geological conditions present including the thickness and composition of the sediment column above the volcanic rocks, and the rates of mixing of hydrothermal solutions with normal seawater.The geochemical features described support possible sub-seafloor formation of metal sulphides at both of the hydrothermal fields studied.</div></front></TEI></ISTEX></double></record>Pour manipuler ce document sous Unix (Dilib)
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