Sedimentary petrology and paleotectonic analysis of the arc—arc junction: the Paleocene Nakanogawa Group in the Hidaka Belt, central Hokkaido, Japan

Nanayama, Futoshi; Kanamatsu, Toshiya; Fujiwara, Yoshiki

doi:10.1016/0031-0182(93)90106-s

Cited by 29 publications

(75 citation statements)

References 19 publications

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“…The development of the Paleo‐Japan and Paleo‐Kuril arc‐trench systems in the Hokkaido Central Belt, northeast Japan, during the Late Cretaceous to early Paleogene has been deciphered by using paleomagnetic data (Kimura, ; Kimura & Tamaki, ; Nanayama, Kanamatsu, & Fujiwara, ; Figure ). The Hidaka Belt, which is located in the center of the Hokkaido Central Belt, is composed mainly of Paleocene turbidite facies sediments, with small amounts of pelagic sediments and mélange facies sediments associated with the normal type of mid‐ocean ridge basalt (N‐MORB) green rocks (see Miyashita, Arai, & Nagahashi , for details/detailed discussion) that are collectively referred to as the Hidaka Supergroup (Kiminami, Komatsu, Niida, & Kito, ).…”

Section: Introductionmentioning

confidence: 99%

“…The Hidaka Belt, which is located in the center of the Hokkaido Central Belt, is composed mainly of Paleocene turbidite facies sediments, with small amounts of pelagic sediments and mélange facies sediments associated with the normal type of mid‐ocean ridge basalt (N‐MORB) green rocks (see Miyashita, Arai, & Nagahashi , for details/detailed discussion) that are collectively referred to as the Hidaka Supergroup (Kiminami, Komatsu, Niida, & Kito, ). These sediments accumulated near the Paleo‐Japan and Paleo‐Kuril arc‐trench systems and were later incorporated into accretionary bodies (Nanayama et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…However, after reexamination of the radiolarian fossils around the Cretaceous‐Paleogene boundary in the 1990s the depositional age of these rocks was revised to Paleocene to Eocene (e.g. Iwata & Tajika, ; Kiminami, Kawabata, & Miyashita, ; Nanayama, ; Nanayama & Ganzawa, ; Tajika & Iwata, ; Watanabe & Iwata, ).…”

Section: Introductionmentioning

confidence: 99%

“…The depositional age of the Nakanogawa Group remains uncertain because only a few radiolarian fossil ages (Paleocene to early Eocene; Nanayama, ) and only two fission‐track (FT) ages on acidic tuff, 50.4 ±2.4 (2σ error) Ma and 47.6 ±2.6 Ma (2σ error) (Nanayama & Ganzawa, ), are reported.…”

Section: Introductionmentioning

confidence: 99%

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U–Pb zircon ages of the Nakanogawa Group in the Hidaka Belt, northern Japan: Implications for its provenance and the protolith of the Hidaka metamorphic rocks

et al. 2017

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Zircon U–Pb ages of two acidic tuff and two turbidite sandstone samples from the Nakanogawa Group, Hidaka Belt, were measured to estimate its depositional age and the development of the Hokkaido Central Belt, northeast Japan. In the northern unit, homogeneous zircons from pelagic acidic tuff from a basal horizon dated to 58–57 Ma, zircons from sandstone from the upper part of the unit dated to 56–54 Ma, and zircons from acidic tuff from the uppermost part dated to 60–56 Ma and 69–63 Ma. Both of the tuff U–Pb ages are significantly older than the youngest radiolarian fossil age (66–48 Ma). Therefore, the maximum depositional age of the turbidite facies in the northern unit is 58 Ma and the younger age limit, estimated from the fossil age, is 48 Ma. In the southern unit, homogeneous zircons from turbidite sandstone dated to 58–57 Ma. Thus the depositional age of this turbidite facies was interpreted to be 66–56 Ma from the fossil age, probably close to 57 Ma. Most of the zircon U–Pb ages from the Nakanogawa Group are younger than 80 Ma, with a major peak at 60 Ma. This result implies that around Hokkaido volcanic activity occurred mainly after 80 Ma. Older zircon ages (120–80 Ma, 180–140 Ma, 340–220 Ma, 1.9 Ga, 2.2 Ga, and 2.7 Ga) give information about the provenance of other rocks in the Hidaka Belt. It is inferred that the Nakanogawa Group comprises protoliths of the upper sequence of the Hidaka Metamorphic Zone, which therefore has the same depositional age as the Nakanogawa Group (66–48 Ma). The depositional ages of the lower sequence of the Hidaka Metamorphic Zone and the Nakanogawa Group are probably the same.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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U–Pb zircon ages of the Nakanogawa Group in the Hidaka Belt, northern Japan: Implications for its provenance and the protolith of the Hidaka metamorphic rocks

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“…This is puzzling, considering the absence of wetzelielloideans species in the lower Eocene part of the Nemuro Group. It may reflect depositional control of the Yubetsu Group and the Nemuro Group, which are considered to be trench fill and forearc basin fill, respectively (Nanayama et al 1993). The minor constituents of the Yubetsu Group assemblage such as Deflandrea robusta, D. truncata, Cerodinium sp.…”

Section: Paleocenementioning

confidence: 99%

Paleogene dinoflagellate cyst biostratigraphy of northern Japan

Kitamura

2004

Micropaleontology

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This study establishes for the first time in Japan a Paleogene dinoflagellate cyst biostratigraphic zonation, which enables dating and correlation of Paleogene shallow marine sediments in the northwestern Pacific where other marine planktonic microfossils are extremely rare. This study uses previously-dated outcrop sections in northern Japan and proposes nineteen dinoflagellate cyst biozones for the interval of the Paleocene-Lower Miocene, except the middle Middle Eocene where appropriate marine sections were not available. Comparison between assemblages from various other localities in Japan and Sakhalin Island, Far East Russia, confirms that the biostratigraphic zonation proposed here is applicable to the northern Japan and Sakhalin region. The taxonomic part describes 36 taxa that include three new species, Spinidinium pentagonum Kurita, sp. nov. from the Eocene, and Spinidinium? tripylum Kurita, sp. nov. and Williamsidinium diaphanes Kurita, sp. nov. from the Oligocene.

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Unconformity between the Upper Maastrichtian and Upper Paleocene in the Hakobuchi Formation, north Hokkaido, Japan: a major time gap within the Yezo forearc basin sediments

Ando¹,

Tomosugi²

2005

Cretaceous Research

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Sedimentary petrology and paleotectonic analysis of the arc—arc junction: the Paleocene Nakanogawa Group in the Hidaka Belt, central Hokkaido, Japan

Cited by 29 publications

References 19 publications

U–Pb zircon ages of the Nakanogawa Group in the Hidaka Belt, northern Japan: Implications for its provenance and the protolith of the Hidaka metamorphic rocks

U–Pb zircon ages of the Nakanogawa Group in the Hidaka Belt, northern Japan: Implications for its provenance and the protolith of the Hidaka metamorphic rocks

Paleogene dinoflagellate cyst biostratigraphy of northern Japan

Unconformity between the Upper Maastrichtian and Upper Paleocene in the Hakobuchi Formation, north Hokkaido, Japan: a major time gap within the Yezo forearc basin sediments

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