Seafloor geology and petrology in the oceanic to continental transition zone of the Kermadec-Havre-Taupo Volcanic Zone arc system, New Zealand
Identifieur interne : 002307 ( Main/Exploration ); précédent : 002306; suivant : 002308Seafloor geology and petrology in the oceanic to continental transition zone of the Kermadec-Havre-Taupo Volcanic Zone arc system, New Zealand
Auteurs : J. A. Gamble [Nouvelle-Zélande] ; I. C. Wright ; J. A. Baker [Nouvelle-Zélande]Source :
- New Zealand Journal of Geology and Geophysics [ 0028-8306 ] ; 1993.
Descripteurs français
- Pascal (Inist)
- Nouvelle Zélande Ile Nord, Arc volcanique, Zone volcanique Taupo, Volcanisme sous marin, Arc insulaire, Iles Kermadec, Pacifique Sud Ouest, Carte bathymétrique, Photographie sous marine, Pahoehoe, Pillow lava, Stratovolcan, Brèche volcanique, Scorie, Zone transition, Croûte continentale, Croûte océanique, Dragage, Basalte, Andésite basaltique, Rhyolite, Convection, Asthénosphère, Zone subduction, Fosse abyssale Havre, Pétrographie, Donnée microsonde électronique, Analyse chimique, Formation rift, Bassin arrière arc, Donnée MEB, Verre volcanique.
- Wicri :
- topic : Dragage.
English descriptors
- KwdEn :
- Kermadec Islands, North Island, SEM data, Southwest Pacific, Taupo volcanic zone, asthenosphere, back-arc basins, basaltic andesite, basalts, bathymetric maps, chemical composition, continental crust, convection, dredging, electron probe data, island arcs, oceanic crust, pahoehoe, petrography, pillow lava, rhyolites, rifting, scoria, stratovolcanoes, subduction zones, submarine photography, submarine volcanism, transition zones, volcanic arcs, volcanic breccia, volcanic glass.
Abstract
To the north of New Zealand, the oceanic Tonga-Kermadec island arc system strikes roughly NNE-SSW and intersects the continental shelf of New Zealand in the vicinity of the Whakatane arc volcano, a submarine edifice which rises around 1000 m from the surrounding seafloor. A major bathymetric slope-break here coincides with the proposed oceanic-continental transition zone. Northwest of the Whakatane volcano, dredging on Colville Knolls recovered samples of deformed Mesozoic(?) metasedimentary rocks, whose petrography and geochemistry resemble Waipapa Terrane rocks of onshore New Zealand, thereby confirming the extent and «continental» status of the offshore region
Affiliations:
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Wellington, res. school earth sci., dep. geology</s1><s2>Wellington</s2><s3>NZL</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Nouvelle-Zélande</country><wicri:noRegion>Wellington</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">94-0170811</idno><date when="1993">1993</date><idno type="stanalyst">PASCAL 94-0170811 INIST</idno><idno type="RBID">Pascal:94-0170811</idno><idno type="wicri:Area/PascalFrancis/Corpus">000567</idno><idno type="wicri:Area/PascalFrancis/Curation">000639</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000578</idno><idno type="wicri:doubleKey">0028-8306:1993:Gamble J:seafloor:geology:and</idno><idno type="wicri:Area/Main/Merge">002372</idno><idno type="wicri:Area/Main/Curation">002307</idno><idno type="wicri:Area/Main/Exploration">002307</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Seafloor geology and petrology in the oceanic to continental transition zone of the Kermadec-Havre-Taupo Volcanic Zone arc system, New Zealand</title><author><name sortKey="Gamble, J A" sort="Gamble, J A" uniqKey="Gamble J" first="J. A." last="Gamble">J. A. Gamble</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Victoria univ. Wellington, res. school earth sci., dep. geology</s1><s2>Wellington</s2><s3>NZL</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Nouvelle-Zélande</country><wicri:noRegion>Wellington</wicri:noRegion></affiliation></author><author><name sortKey="Wright, I C" sort="Wright, I C" uniqKey="Wright I" first="I. C." last="Wright">I. C. Wright</name></author><author><name sortKey="Baker, J A" sort="Baker, J A" uniqKey="Baker J" first="J. A." last="Baker">J. A. Baker</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Victoria univ. Wellington, res. school earth sci., dep. geology</s1><s2>Wellington</s2><s3>NZL</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Nouvelle-Zélande</country><wicri:noRegion>Wellington</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">New Zealand Journal of Geology and Geophysics</title><title level="j" type="abbreviated">N.Z. J. Geol. Geophys.</title><idno type="ISSN">0028-8306</idno><imprint><date when="1993">1993</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">New Zealand Journal of Geology and Geophysics</title><title level="j" type="abbreviated">N.Z. J. Geol. Geophys.</title><idno type="ISSN">0028-8306</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Kermadec Islands</term><term>North Island</term><term>SEM data</term><term>Southwest Pacific</term><term>Taupo volcanic zone</term><term>asthenosphere</term><term>back-arc basins</term><term>basaltic andesite</term><term>basalts</term><term>bathymetric maps</term><term>chemical composition</term><term>continental crust</term><term>convection</term><term>dredging</term><term>electron probe data</term><term>island arcs</term><term>oceanic crust</term><term>pahoehoe</term><term>petrography</term><term>pillow lava</term><term>rhyolites</term><term>rifting</term><term>scoria</term><term>stratovolcanoes</term><term>subduction zones</term><term>submarine photography</term><term>submarine volcanism</term><term>transition zones</term><term>volcanic arcs</term><term>volcanic breccia</term><term>volcanic glass</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Nouvelle Zélande Ile Nord</term><term>Arc volcanique</term><term>Zone volcanique Taupo</term><term>Volcanisme sous marin</term><term>Arc insulaire</term><term>Iles Kermadec</term><term>Pacifique Sud Ouest</term><term>Carte bathymétrique</term><term>Photographie sous marine</term><term>Pahoehoe</term><term>Pillow lava</term><term>Stratovolcan</term><term>Brèche volcanique</term><term>Scorie</term><term>Zone transition</term><term>Croûte continentale</term><term>Croûte océanique</term><term>Dragage</term><term>Basalte</term><term>Andésite basaltique</term><term>Rhyolite</term><term>Convection</term><term>Asthénosphère</term><term>Zone subduction</term><term>Fosse abyssale Havre</term><term>Pétrographie</term><term>Donnée microsonde électronique</term><term>Analyse chimique</term><term>Formation rift</term><term>Bassin arrière arc</term><term>Donnée MEB</term><term>Verre volcanique</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Dragage</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">To the north of New Zealand, the oceanic Tonga-Kermadec island arc system strikes roughly NNE-SSW and intersects the continental shelf of New Zealand in the vicinity of the Whakatane arc volcano, a submarine edifice which rises around 1000 m from the surrounding seafloor. A major bathymetric slope-break here coincides with the proposed oceanic-continental transition zone. Northwest of the Whakatane volcano, dredging on Colville Knolls recovered samples of deformed Mesozoic(?) metasedimentary rocks, whose petrography and geochemistry resemble Waipapa Terrane rocks of onshore New Zealand, thereby confirming the extent and «continental» status of the offshore region</div></front></TEI><affiliations><list><country><li>Nouvelle-Zélande</li></country></list><tree><noCountry><name sortKey="Wright, I C" sort="Wright, I C" uniqKey="Wright I" first="I. C." last="Wright">I. C. Wright</name></noCountry><country name="Nouvelle-Zélande"><noRegion><name sortKey="Gamble, J A" sort="Gamble, J A" uniqKey="Gamble J" first="J. A." last="Gamble">J. A. Gamble</name></noRegion><name sortKey="Baker, J A" sort="Baker, J A" uniqKey="Baker J" first="J. A." last="Baker">J. A. Baker</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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