NissirosV1, Main, Exploration, bibRecord, 000343

Hydrothermal sedimentation in the caldera of Santorini, Hellenic Volcanic Arc

Identifieur interne : 000343 ( Main/Exploration ); précédent : 000342; suivant : 000344

Hydrothermal sedimentation in the caldera of Santorini, Hellenic Volcanic Arc

Auteurs : D. S. Cronan [Royaume-Uni] ; S. Varnavas [Grèce] ; C. Perissoratis [Grèce]

Source :

Terra Nova [ 0954-4879 ] ; 1995-03.

RBID : ISTEX:6D5D7B9AD68B4D514853773BC386D6052345FA44

Descripteurs français

Wicri :
- topic : Sciences de la terre, Manganèse.

English descriptors

Abstract

Sediments in the caldera of Santorini are receiving a hydrothermal input of iron and manganese from presently active hydrothermal vents off the Kameni Islands, and are enriched in these elements in their surface layer. However, greater Fe‐Mn enrichments occur in discrete layers at depth in the cores separated from the surface by Fe‐Mn poor sediments, suggesting that a past hydrothermal event may have been more intense than the present one. The buried Fe‐Mn enriched layers occur above a turbidite thought to have resulted from sediment slumping due to a major volcanic eruption and earthquake in 1650, and are thought to have formed consequent on the activation of faults related to the magma chamber by the eruption facilitating seawater‐rock interaction processes and the formation of metal‐rich hydrothermal solutions.

Url:

https://api.istex.fr/document/6D5D7B9AD68B4D514853773BC386D6052345FA44/fulltext/pdf

DOI: 10.1111/j.1365-3121.1995.tb00696.x

Affiliations:

Links toward previous steps (curation, corpus...)

to stream Istex, to step Corpus: 000271
to stream Istex, to step Curation: 000271
to stream Istex, to step Checkpoint: 000279
to stream Main, to step Merge: 000350
to stream Main, to step Curation: 000343

Le document en format XML

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<author><name sortKey="Varnavas, S" sort="Varnavas, S" uniqKey="Varnavas S" first="S." last="Varnavas">S. Varnavas</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aegean world</term>
<term>Average values</term>
<term>Blackwell science</term>
<term>Caldera</term>
<term>Caldera basins</term>
<term>Caldera sediments</term>
<term>Caldera walls</term>
<term>Coarse fraction</term>
<term>Core samples</term>
<term>Cronan</term>
<term>Deeper parts</term>
<term>Earth sciences</term>
<term>Embayment</term>
<term>Enrichment</term>
<term>Eruption</term>
<term>Exhalative</term>
<term>Exhalative zone</term>
<term>Exhalative zones</term>
<term>Higher concentrations</term>
<term>Hydrothermal</term>
<term>Hydrothermal enrichments</term>
<term>Hydrothermal event</term>
<term>Hydrothermal input</term>
<term>Hydrothermal phases</term>
<term>Hydrothermal sedimentation</term>
<term>Hydrothermal solutions</term>
<term>Hydrothermal vents</term>
<term>Individual cores</term>
<term>Interaction processes</term>
<term>Kameni</term>
<term>Kameni islands</term>
<term>Lesser extent</term>
<term>Likely time</term>
<term>Magma chamber</term>
<term>Manganese</term>
<term>Northem basin</term>
<term>Northern basin</term>
<term>Oceanic crust</term>
<term>Outer exhalative zone</term>
<term>Past hydrothermal event</term>
<term>Pumice</term>
<term>Relative proportions</term>
<term>Santorini</term>
<term>Santorini caldera</term>
<term>Santorini caldera cores</term>
<term>Santorini caldera sediments</term>
<term>Santorini cores</term>
<term>Seawater</term>
<term>Sediment</term>
<term>Sediment cores</term>
<term>Submarine hydrothermal activity</term>
<term>Surface layer</term>
<term>Thera</term>
<term>Thera foundation</term>
<term>Turbidity currents</term>
<term>Volcanic activity</term>
<term>Western basin</term>
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<keywords scheme="Teeft" xml:lang="en"><term>Aegean world</term>
<term>Average values</term>
<term>Blackwell science</term>
<term>Caldera</term>
<term>Caldera basins</term>
<term>Caldera sediments</term>
<term>Caldera walls</term>
<term>Coarse fraction</term>
<term>Core samples</term>
<term>Cronan</term>
<term>Deeper parts</term>
<term>Earth sciences</term>
<term>Embayment</term>
<term>Enrichment</term>
<term>Eruption</term>
<term>Exhalative</term>
<term>Exhalative zone</term>
<term>Exhalative zones</term>
<term>Higher concentrations</term>
<term>Hydrothermal</term>
<term>Hydrothermal enrichments</term>
<term>Hydrothermal event</term>
<term>Hydrothermal input</term>
<term>Hydrothermal phases</term>
<term>Hydrothermal sedimentation</term>
<term>Hydrothermal solutions</term>
<term>Hydrothermal vents</term>
<term>Individual cores</term>
<term>Interaction processes</term>
<term>Kameni</term>
<term>Kameni islands</term>
<term>Lesser extent</term>
<term>Likely time</term>
<term>Magma chamber</term>
<term>Manganese</term>
<term>Northem basin</term>
<term>Northern basin</term>
<term>Oceanic crust</term>
<term>Outer exhalative zone</term>
<term>Past hydrothermal event</term>
<term>Pumice</term>
<term>Relative proportions</term>
<term>Santorini</term>
<term>Santorini caldera</term>
<term>Santorini caldera cores</term>
<term>Santorini caldera sediments</term>
<term>Santorini cores</term>
<term>Seawater</term>
<term>Sediment</term>
<term>Sediment cores</term>
<term>Submarine hydrothermal activity</term>
<term>Surface layer</term>
<term>Thera</term>
<term>Thera foundation</term>
<term>Turbidity currents</term>
<term>Volcanic activity</term>
<term>Western basin</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Sciences de la terre</term>
<term>Manganèse</term>
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<front><div type="abstract" xml:lang="en">Sediments in the caldera of Santorini are receiving a hydrothermal input of iron and manganese from presently active hydrothermal vents off the Kameni Islands, and are enriched in these elements in their surface layer. However, greater Fe‐Mn enrichments occur in discrete layers at depth in the cores separated from the surface by Fe‐Mn poor sediments, suggesting that a past hydrothermal event may have been more intense than the present one. The buried Fe‐Mn enriched layers occur above a turbidite thought to have resulted from sediment slumping due to a major volcanic eruption and earthquake in 1650, and are thought to have formed consequent on the activation of faults related to the magma chamber by the eruption facilitating seawater‐rock interaction processes and the formation of metal‐rich hydrothermal solutions.</div>
</front>
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<tree><country name="Royaume-Uni"><noRegion><name sortKey="Cronan, D S" sort="Cronan, D S" uniqKey="Cronan D" first="D. S." last="Cronan">D. S. Cronan</name>
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<country name="Grèce"><noRegion><name sortKey="Varnavas, S" sort="Varnavas, S" uniqKey="Varnavas S" first="S." last="Varnavas">S. Varnavas</name>
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Hydrothermal sedimentation in the caldera of Santorini, Hellenic Volcanic Arc

Hydrothermal sedimentation in the caldera of Santorini, Hellenic Volcanic Arc

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri