Seismic and volcanic activities and aseismic movements as plate motion components in the Aegean area
Identifieur interne : 000438 ( Main/Exploration ); précédent : 000437; suivant : 000439Seismic and volcanic activities and aseismic movements as plate motion components in the Aegean area
Auteurs : Gerassimos A. Papadopoulos [Grèce]Source :
- Tectonophysics [ 0040-1951 ] ; 1989.
English descriptors
- KwdEn :
- Acharya, Active volcanism, Aseismic, Aseismic movements, Aseismic subduction, Brune, Comninakis, Decoupling, Deep tecton, Entire period, Eruption, Eruption rate, Geophys, Gulf segment, Hellenic, High aseismic, Inner zone, Large earthquakes, Last decade, Magma formation, Main zone, Papadopoulos, Papazachos, Plate convergence, Plate decoupling, Plate interaction, Plate motion, Plate motion components, Pure appl, Seismic, Seismic events, Seismic moment, Seismicity, Seismogenic layer, Several segments, Shallow shocks, Smaller events, Solid symbols, Subduction, Subduction zones, Tectonic, Tectonic activity, Tectonophysics, Volcanic, Volcanic activities, Volcanic activity, Volcanism, Zone.
- Teeft :
- Acharya, Active volcanism, Aseismic, Aseismic movements, Aseismic subduction, Brune, Comninakis, Decoupling, Deep tecton, Entire period, Eruption, Eruption rate, Geophys, Gulf segment, Hellenic, High aseismic, Inner zone, Large earthquakes, Last decade, Magma formation, Main zone, Papadopoulos, Papazachos, Plate convergence, Plate decoupling, Plate interaction, Plate motion, Plate motion components, Pure appl, Seismic, Seismic events, Seismic moment, Seismicity, Seismogenic layer, Several segments, Shallow shocks, Smaller events, Solid symbols, Subduction, Subduction zones, Tectonic, Tectonic activity, Tectonophysics, Volcanic, Volcanic activities, Volcanic activity, Volcanism, Zone.
Abstract
Abstract: Slip rates varying between 0.22 and 2.18 cm yr−1 are determined from seismicity in several segments of the Aegean fore-arc and back-arc regions. The rate along the main zone of plate interaction is about 0.5 cm yr−1 while aseismic slip rate, equal to 2.5 or 0.5 cm yr−1 depending on the plate motion rate assumed, indicates that at least 50% of the plate motion is accommodated by creep. These values, with respect to the rate of volcanic eruption (= 0.13 eruptions per year/1000 km of arc length) reinforce the suggestion that active volcanism in subduction zones is related to aseismic subduction. The eruption rate is, however, anomalously low with respect to the degree of plate decoupling (= 0.83 or 0.5) implying that volcanism is not necessarily related to the degree of decoupling and suggesting that the high aseismic slip component of the plate motion is taken up by subcrustal seismicity. A tentative hypothesis is made that the Hellenic subduction zone is of intermediate type between the Marianas and Chile subduction types.
Url:
DOI: 10.1016/0040-1951(89)90292-8
Affiliations:
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Le document en format XML
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Papadopoulos</name><affiliation></affiliation><affiliation></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Grèce</country><wicri:regionArea>∗Mailing address: 98 Mavromichali str.</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Tectonophysics</title><title level="j" type="abbrev">TECTO</title><idno type="ISSN">0040-1951</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1989">1989</date><biblScope unit="volume">167</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="31">31</biblScope><biblScope unit="page" to="39">39</biblScope></imprint><idno type="ISSN">0040-1951</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0040-1951</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acharya</term><term>Active volcanism</term><term>Aseismic</term><term>Aseismic movements</term><term>Aseismic subduction</term><term>Brune</term><term>Comninakis</term><term>Decoupling</term><term>Deep tecton</term><term>Entire period</term><term>Eruption</term><term>Eruption rate</term><term>Geophys</term><term>Gulf segment</term><term>Hellenic</term><term>High aseismic</term><term>Inner zone</term><term>Large earthquakes</term><term>Last decade</term><term>Magma formation</term><term>Main zone</term><term>Papadopoulos</term><term>Papazachos</term><term>Plate convergence</term><term>Plate decoupling</term><term>Plate interaction</term><term>Plate motion</term><term>Plate motion components</term><term>Pure appl</term><term>Seismic</term><term>Seismic events</term><term>Seismic moment</term><term>Seismicity</term><term>Seismogenic layer</term><term>Several segments</term><term>Shallow shocks</term><term>Smaller events</term><term>Solid symbols</term><term>Subduction</term><term>Subduction zones</term><term>Tectonic</term><term>Tectonic activity</term><term>Tectonophysics</term><term>Volcanic</term><term>Volcanic activities</term><term>Volcanic activity</term><term>Volcanism</term><term>Zone</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Acharya</term><term>Active volcanism</term><term>Aseismic</term><term>Aseismic movements</term><term>Aseismic subduction</term><term>Brune</term><term>Comninakis</term><term>Decoupling</term><term>Deep tecton</term><term>Entire period</term><term>Eruption</term><term>Eruption rate</term><term>Geophys</term><term>Gulf segment</term><term>Hellenic</term><term>High aseismic</term><term>Inner zone</term><term>Large earthquakes</term><term>Last decade</term><term>Magma formation</term><term>Main zone</term><term>Papadopoulos</term><term>Papazachos</term><term>Plate convergence</term><term>Plate decoupling</term><term>Plate interaction</term><term>Plate motion</term><term>Plate motion components</term><term>Pure appl</term><term>Seismic</term><term>Seismic events</term><term>Seismic moment</term><term>Seismicity</term><term>Seismogenic layer</term><term>Several segments</term><term>Shallow shocks</term><term>Smaller events</term><term>Solid symbols</term><term>Subduction</term><term>Subduction zones</term><term>Tectonic</term><term>Tectonic activity</term><term>Tectonophysics</term><term>Volcanic</term><term>Volcanic activities</term><term>Volcanic activity</term><term>Volcanism</term><term>Zone</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Slip rates varying between 0.22 and 2.18 cm yr−1 are determined from seismicity in several segments of the Aegean fore-arc and back-arc regions. The rate along the main zone of plate interaction is about 0.5 cm yr−1 while aseismic slip rate, equal to 2.5 or 0.5 cm yr−1 depending on the plate motion rate assumed, indicates that at least 50% of the plate motion is accommodated by creep. These values, with respect to the rate of volcanic eruption (= 0.13 eruptions per year/1000 km of arc length) reinforce the suggestion that active volcanism in subduction zones is related to aseismic subduction. The eruption rate is, however, anomalously low with respect to the degree of plate decoupling (= 0.83 or 0.5) implying that volcanism is not necessarily related to the degree of decoupling and suggesting that the high aseismic slip component of the plate motion is taken up by subcrustal seismicity. A tentative hypothesis is made that the Hellenic subduction zone is of intermediate type between the Marianas and Chile subduction types.</div></front></TEI><affiliations><list><country><li>Grèce</li></country></list><tree><country name="Grèce"><noRegion><name sortKey="Papadopoulos, Gerassimos A" sort="Papadopoulos, Gerassimos A" uniqKey="Papadopoulos G" first="Gerassimos A." last="Papadopoulos">Gerassimos A. Papadopoulos</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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