| Project/Area Number |
12575001
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Stratigraphy/Paleontology
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| Research Institution | Utsunomiya University |
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Principal Investigator |
AITA Yoshiaki Utsunomiya University, Faculty of Agriculture, Assoc. Professor, 農学部, 助教授 (90167768)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAKTTA Satoshi Miyazaki University, Faculty of Education and Culture, Assoc. Professor, 教育文化学部, 助教授 (80210342)
TAKEMURA Atsushi Hyogo University of Teacher Education, Geological Institute, Assoc. Professor, 学校教育学部, 助教授 (90192632)
SAKAI Toyosaburo Utsunomiya University, Faculty of Agriculture, Professor, 農学部, 教授 (50089778)
KODAMA Kazuto Kochi University, Marine Core Research Center, Professor, 海洋コア研究センター, 教授 (00153560)
HORI Rie Ehime University, Faculty of Science, Research Associate, 理学部, 助手 (30263924)
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| Project Period (FY) |
2000 – 2002
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| Project Status |
Completed (Fiscal Year 2002)
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| Budget Amount *help |
¥15,500,000 (Direct Cost: ¥15,500,000)
Fiscal Year 2002: ¥4,800,000 (Direct Cost: ¥4,800,000)
Fiscal Year 2001: ¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 2000: ¥6,400,000 (Direct Cost: ¥6,400,000)
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| Keywords | North Island, New Zealand / Permian-Jurassic / P / T boundary / high latitude radiolarians / Arrow Rocks / Waipapa Terrane / conodont / green argillite / ベイオブアイランズ / プケティフォレスト / 高緯度型 / ペルム紀-三畳紀(P / T)境界 / 三畳紀-ジュラ紀 / コノドント化石層序 / 放散虫化石層序 / ロシア / ジュラ紀後期 / 三畳紀-ジュラ紀(T / J)境界 / ニュージーランド / ペルム系―三畳系 / マイタイテレーン / ファンガロア / 放散虫化石 / ダーヴィル島 |
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| Research Abstract |
The geological fieldwork for the Permian-Jurassic pelagic to hemipelagic sequences of the accretionary complexes in New Zealand has been carried out to clarify the facies, structure and faunal and stratigraphic correlations between terranes and characterize high latitude radiolarian faunas through time.
1. A detailed correlation of the measured sections within the Permian-Triassic pelagic succession (Waipapa Terrane) exposed at Arrow Rocks, Whangaroa Bay, North Island has been carried out. A refined conodont biostratigraphy for possible P/T boundary sequence revealed that the Lower Triassic 4 Zones, Ns. Kummeli, Ns. cristagalli, Ns. pakistanensis, and Ns. Waageni Zones have been recognized at Arrow Rocks. A new discovery of the Early to Middle Triassic high latitude radiolarian faunas has been made from this section.
2. Reconnaissance search for high latitude radiolarians in various ages within Waipapa Terrane has been carried out on Stephenson Island, the Cavalli Islands, various islands of Bay of Islands, and inland sections of Puketi Forest.
3. In Auckland area, radiolarian analysis from the hemipelagic green argillite section on Ponui Island indicates that well-preserved Jurassic high latitude radiolariaan faunas occurred from phosphatic concretions. Radiolarian analysis to clarify the Triassic -Jurassic boundary within the pelagic red cherts sequence on Pakihi Island has been carried out.
4. In comparison with southern high latitude radiolarian faunas, the counter part of the Late Jurassic to Late Paleocene radiolarian-bearing strata in the Moscow and Ulyanovsk region in Russia has been surveyed and northern high latitude radiolarian faunas in different ages have been collected.
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