Neotectonics and the Kos Plateau Tuff eruption of 161 ka, South Aegean arc
Identifieur interne : 000168 ( Main/Exploration ); précédent : 000167; suivant : 000169Neotectonics and the Kos Plateau Tuff eruption of 161 ka, South Aegean arc
Auteurs : Georgia Pe-Piper [Canada] ; David J. W. Piper [Canada] ; Constantine Perissoratis [Grèce]Source :
- Journal of volcanology and geothermal research [ 0377-0273 ] ; 2005.
Descripteurs français
- Pascal (Inist)
- Néotectonique, Ile Cos, Arc volcanique, Hellénides, Eruption, Tuf volcanique, Pléistocène, Levé sismique, Sismique réflexion, Haute résolution, Subsidence, Sédiment marin, Off shore, Discordance, Surface érosion, Transgression, Eustatisme, Taux sédimentation, Milieu eau peu profonde, Plaine côtière, Coulée pyroclastique, Explosion, Composition rhyolitique, Bassin Cos, Ile Pachia, Ile Pyrgousa, Ile Tilos, Ile Nisyros, Dacite, Linéament, Profil sismique, Faille.
English descriptors
- KwdEn :
- Hellenides, Kos, Pleistocene, coastal plains, dacites, erosion surfaces, eruptions, eustacy, explosions, faults, high resolution, lineaments, marine sediments, neotectonics, offshore, pyroclastic flows, rhyolitic composition, sedimentation rates, seismic profiles, seismic reflection, seismic surveys, shallow-water environment, subsidence, transgression, tuff, unconformities, volcanic arcs.
Abstract
A high-resolution seismic-reflection survey of the area between Kos and Tilos islands is used to constrain the nature of the Kos Plateau Tuff (KPT) eruption and post-eruptive subsidence. A unique acoustically incoherent unit tens of metres thick at a subbottom depth of 15-35 m is recognised throughout the West Kos basin, which lies between Pachia, Yali and Kos. It commonly unconformably overlies folded, stratified sediment, but in places is concordant with stratified sediment more than 100 m thick. In places south of Kos, the acoustically incoherent unit is overlain by an unconformity and irregularly stratified sediment interpreted as terrestrial or shallow marine. Southeast of Nisyros, a correlative acoustically incoherent unit overlies a planar marine transgression erosion surface that extends almost to Tilos. The stratigraphic level of this unit is dated by comparison with the global eustatic sea-level record and the presence of major transgressive erosion surfaces on adjacent continental shelves, constrained by regional sedimentation rates, and indicates that it is of similar age to the Kos Plateau Tuff eruption. The relationship of this unit to coastal erosion surfaces, and its absence in many areas where seismic-reflection profiles show continuous marine sedimentation, suggests that it is a pyroclastic deposit of subaerial, or at most very shallow marine, origin from the Kos Plateau Tuff eruption. This presence of transgressive unconformities implies that a coastal plain or shallow sea extended southeast of Nisyros to Tilos and the Datça peninsula, and thus it is unlikely that pyroclastic flows crossed large stretches of deep water towards Tilos, as proposed by Allen and Cas (Allen, S.R., Cas, R.A.F., 2001. Transport of pyroclastic flows across the sea during the explosive, rhyolitic eruption of the Kos Plateau Tuff, Greece. Bull. Volcanol. 62, 441-456).
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 000027
- to stream PascalFrancis, to step Curation: 000013
- to stream PascalFrancis, to step Checkpoint: 000028
- to stream Main, to step Merge: 000170
- to stream Main, to step Curation: 000168
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Neotectonics and the Kos Plateau Tuff eruption of 161 ka, South Aegean arc</title><author><name sortKey="Pe Piper, Georgia" sort="Pe Piper, Georgia" uniqKey="Pe Piper G" first="Georgia" last="Pe-Piper">Georgia Pe-Piper</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Geology, Saint Mary's University</s1><s2>Halifax, Nova Scotia, B3H 3C3</s2><s3>CAN</s3><sZ>1 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Halifax, Nova Scotia, B3H 3C3</wicri:noRegion></affiliation></author><author><name sortKey="Piper, David J W" sort="Piper, David J W" uniqKey="Piper D" first="David J. W." last="Piper">David J. W. Piper</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Geological Survey of Canada (Atlantic), Bedford Institute of Oceanography, P.O. Box 1006</s1><s2>Dartmouth, Nova Scotia, B2Y 4A2</s2><s3>CAN</s3><sZ>2 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Dartmouth, Nova Scotia, B2Y 4A2</wicri:noRegion></affiliation></author><author><name sortKey="Perissoratis, Constantine" sort="Perissoratis, Constantine" uniqKey="Perissoratis C" first="Constantine" last="Perissoratis">Constantine Perissoratis</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Institute of Geology and Mineral Exploration, 70 Messoghion Street</s1><s2>11527 Athens</s2><s3>GRC</s3><sZ>3 aut.</sZ></inist:fA14><country>Grèce</country><placeName><settlement type="city">Athènes</settlement><region nuts="2" type="region">Attique (région)</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">05-0458213</idno><date when="2005">2005</date><idno type="stanalyst">PASCAL 05-0458213 INIST</idno><idno type="RBID">Pascal:05-0458213</idno><idno type="wicri:Area/PascalFrancis/Corpus">000027</idno><idno type="wicri:Area/PascalFrancis/Curation">000013</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000028</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000028</idno><idno type="wicri:doubleKey">0377-0273:2005:Pe Piper G:neotectonics:and:the</idno><idno type="wicri:Area/Main/Merge">000170</idno><idno type="wicri:Area/Main/Curation">000168</idno><idno type="wicri:Area/Main/Exploration">000168</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Neotectonics and the Kos Plateau Tuff eruption of 161 ka, South Aegean arc</title><author><name sortKey="Pe Piper, Georgia" sort="Pe Piper, Georgia" uniqKey="Pe Piper G" first="Georgia" last="Pe-Piper">Georgia Pe-Piper</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Geology, Saint Mary's University</s1><s2>Halifax, Nova Scotia, B3H 3C3</s2><s3>CAN</s3><sZ>1 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Halifax, Nova Scotia, B3H 3C3</wicri:noRegion></affiliation></author><author><name sortKey="Piper, David J W" sort="Piper, David J W" uniqKey="Piper D" first="David J. W." last="Piper">David J. W. Piper</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Geological Survey of Canada (Atlantic), Bedford Institute of Oceanography, P.O. Box 1006</s1><s2>Dartmouth, Nova Scotia, B2Y 4A2</s2><s3>CAN</s3><sZ>2 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Dartmouth, Nova Scotia, B2Y 4A2</wicri:noRegion></affiliation></author><author><name sortKey="Perissoratis, Constantine" sort="Perissoratis, Constantine" uniqKey="Perissoratis C" first="Constantine" last="Perissoratis">Constantine Perissoratis</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Institute of Geology and Mineral Exploration, 70 Messoghion Street</s1><s2>11527 Athens</s2><s3>GRC</s3><sZ>3 aut.</sZ></inist:fA14><country>Grèce</country><placeName><settlement type="city">Athènes</settlement><region nuts="2" type="region">Attique (région)</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Journal of volcanology and geothermal research</title><title level="j" type="abbreviated">J. volcanol. geotherm. res.</title><idno type="ISSN">0377-0273</idno><imprint><date when="2005">2005</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of volcanology and geothermal research</title><title level="j" type="abbreviated">J. volcanol. geotherm. res.</title><idno type="ISSN">0377-0273</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Hellenides</term><term>Kos</term><term>Pleistocene</term><term>coastal plains</term><term>dacites</term><term>erosion surfaces</term><term>eruptions</term><term>eustacy</term><term>explosions</term><term>faults</term><term>high resolution</term><term>lineaments</term><term>marine sediments</term><term>neotectonics</term><term>offshore</term><term>pyroclastic flows</term><term>rhyolitic composition</term><term>sedimentation rates</term><term>seismic profiles</term><term>seismic reflection</term><term>seismic surveys</term><term>shallow-water environment</term><term>subsidence</term><term>transgression</term><term>tuff</term><term>unconformities</term><term>volcanic arcs</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Néotectonique</term><term>Ile Cos</term><term>Arc volcanique</term><term>Hellénides</term><term>Eruption</term><term>Tuf volcanique</term><term>Pléistocène</term><term>Levé sismique</term><term>Sismique réflexion</term><term>Haute résolution</term><term>Subsidence</term><term>Sédiment marin</term><term>Off shore</term><term>Discordance</term><term>Surface érosion</term><term>Transgression</term><term>Eustatisme</term><term>Taux sédimentation</term><term>Milieu eau peu profonde</term><term>Plaine côtière</term><term>Coulée pyroclastique</term><term>Explosion</term><term>Composition rhyolitique</term><term>Bassin Cos</term><term>Ile Pachia</term><term>Ile Pyrgousa</term><term>Ile Tilos</term><term>Ile Nisyros</term><term>Dacite</term><term>Linéament</term><term>Profil sismique</term><term>Faille</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A high-resolution seismic-reflection survey of the area between Kos and Tilos islands is used to constrain the nature of the Kos Plateau Tuff (KPT) eruption and post-eruptive subsidence. A unique acoustically incoherent unit tens of metres thick at a subbottom depth of 15-35 m is recognised throughout the West Kos basin, which lies between Pachia, Yali and Kos. It commonly unconformably overlies folded, stratified sediment, but in places is concordant with stratified sediment more than 100 m thick. In places south of Kos, the acoustically incoherent unit is overlain by an unconformity and irregularly stratified sediment interpreted as terrestrial or shallow marine. Southeast of Nisyros, a correlative acoustically incoherent unit overlies a planar marine transgression erosion surface that extends almost to Tilos. The stratigraphic level of this unit is dated by comparison with the global eustatic sea-level record and the presence of major transgressive erosion surfaces on adjacent continental shelves, constrained by regional sedimentation rates, and indicates that it is of similar age to the Kos Plateau Tuff eruption. The relationship of this unit to coastal erosion surfaces, and its absence in many areas where seismic-reflection profiles show continuous marine sedimentation, suggests that it is a pyroclastic deposit of subaerial, or at most very shallow marine, origin from the Kos Plateau Tuff eruption. This presence of transgressive unconformities implies that a coastal plain or shallow sea extended southeast of Nisyros to Tilos and the Datça peninsula, and thus it is unlikely that pyroclastic flows crossed large stretches of deep water towards Tilos, as proposed by Allen and Cas (Allen, S.R., Cas, R.A.F., 2001. Transport of pyroclastic flows across the sea during the explosive, rhyolitic eruption of the Kos Plateau Tuff, Greece. Bull. Volcanol. 62, 441-456).</div></front></TEI><affiliations><list><country><li>Canada</li><li>Grèce</li></country><region><li>Attique (région)</li></region><settlement><li>Athènes</li></settlement></list><tree><country name="Canada"><noRegion><name sortKey="Pe Piper, Georgia" sort="Pe Piper, Georgia" uniqKey="Pe Piper G" first="Georgia" last="Pe-Piper">Georgia Pe-Piper</name></noRegion><name sortKey="Piper, David J W" sort="Piper, David J W" uniqKey="Piper D" first="David J. W." last="Piper">David J. W. Piper</name></country><country name="Grèce"><region name="Attique (région)"><name sortKey="Perissoratis, Constantine" sort="Perissoratis, Constantine" uniqKey="Perissoratis C" first="Constantine" last="Perissoratis">Constantine Perissoratis</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Terre/explor/NissirosV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000168 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000168 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Terre
|area= NissirosV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= Pascal:05-0458213
|texte= Neotectonics and the Kos Plateau Tuff eruption of 161 ka, South Aegean arc
}}
| This area was generated with Dilib version V0.6.33. |  |