<Articles>Mid-Tertiary magmatic events in New Caledonia : K-Ar dating of boninitic volcanism and granitoid intrusives

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概要

• 論文の詳細を見る

• The Cenozoic geological record of New Caledonia contains two autochthonous magmatic associations, the Early Eocene Formation of Basalts and the . Late Oligocene-Early Miocene granitoid suite of the Koum and St Louis areas. New K-Ar dates show that the boninites in the Nepoui region, hitherto thought to be Early Eocene, are Late Oligocene. Allochthonous ultramafic rocks of the New Caledonia Ophiolite were emplaced in the Late Eocene or Early Oligocene. The similar age of the Nepoui boninites and the Koum-St Louis granitoids suggests that they were linked to a short lived subduction event which took place after ophiolite emplacement.

• 静岡大学の論文

著者

• SMITH Ian

  Department of Geology, University of Auckland

• Smith I

  Univ. Auckland Auckland Nzl

• Itaya T

  Okayama Univ. Sci. Okayama Jpn

• Itaya Tetsumaru

  Hiruzen Research Institute, Okayama University of Science

• BLACK Philippa

  Department of Geology, University of Auckland

• OHIRA Takashi

  Hiruzen Research Institute, Okayama University of Science

• TAKAGI Miki

  Hiruzen Research Institute, Okayama University of Science

• Itaya Tetsumaru

  Hiruzen Research Institute Okayama University Of Science

• Takagi Miki

  Hiruzen Research Institute Okayama University Of Science

• Black P

  Department Of Geology University Of Auckland

• Black Philippa

  Department Of Geology University Of Auckland

• Ohira Takashi

  Hiruzen Research Institute Okayama University Of Science

• ITAYA TETSUMARU

  Research Institute of Natural Science, Okayama University of Science

関連論文

• K-Ar ages of the Auckland geomagnetic excursions
• Paleomagnetism of Young New Zealand Basalts and Longitudinal Distribution of Paleosecular Variation
• K-Ar Ages of the Middle Pleistocene Takahara Volcano,Central Japan,and Argon Release Processes in Cooling Lava (〔希ガスの質量分析に関する特集〕)
• Tectono-metamorphic evolution of the Okcheon Metamorphic Belt, South Korea : Tectonic implications in East Asia
• New type of gas mass spectrometer for K-Ar(Ar-Ar) dating : a preliminary report
• New mass spectrometer with a triple collector system for argon analysis with a peak height comparison method
• Radiometric ages of metamorphic and plutonic rocks in South Korea
• Mid-Tertiary magmatic events in New Caledonia : K-Ar dating of boninitic volcanism and granitoid intrusives
• K-Ar ages of glaucophane schists and associated rocks from the Horokanai-Kamietanbetsu area in the Kamuikotan zone,Hokkaido,northern Japan
• Diagenesis in Early Miocene Waitemata Group sediments, Upper Waitemata Harbour, Auckland, New Zealand
• K-Ar Ages of Unzen Volcano in Kyushu, Japan : With Some Aspects of Geology of Mayu-Yama
• Metamorphism and metamorphic K-Ar ages of the Mesozoic accretionary complex in Northland, New Zealand
• Further K-Ar dating and paleomagnetic study of the Auckland geomagnetic excursions
• Eruption styles and volcanic hazard in the Auckland volcanic field,New Zealand (鮫島輝彦先生追悼論文集)

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