Dinoflagellate cyst biostratigraphy and age of the Oligocene Momijiyama Formation, Yubari Coal-Field, central Hokkaido, Japan.

Kurita, H; Miwa, Makiko

doi:10.5575/geosoc.104.56

Cited by 4 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interregional correlation based on benthic foraminifera and planktonic foraminifera, nannofossil and K-Ar age data from coeval formations indicate that the Momijiyama Formation is Early Oligocene (Kaiho 1983(Kaiho , 1984dOkada and Kaiho 1992). Kurita and Miwa (1998) confirmed the Early Oligocene age of the Momijiyama Formation from fission-track ages and correlation of the dinoflagellate cyst assemblages with those from the Joban area, northeast Honshu. The paleoenvironments of the Poronai and Momijiyama Formations are reviewed briefly by Kurita and Matsuoka (1994).…”

Section: Upper Middle Eocene To Lower Oligocenesupporting

confidence: 71%

“…The predominantly terrestrial Middle Eocene rocks contain significant coal reserves, which have been mined in northern Japan. Dinoflagellate cysts from the upper Middle Eocene to Lower Oligocene rocks have been described by Kurita and Matsuoka (1994) and Kurita and Miwa (1998).…”

Section: Upper Middle Eocene To Lower Oligocenementioning

confidence: 99%

“…Age diagnostic data; Dt= diatoms, Po= pollen, pF= planktonic foraminifera, N= calcareous nannofossils, KAr= K-Ar dating, FT= fission track dating. Data sources; Haboro area= Hoyanagi and Matsui (1985), Kurita et al (1992); Yubari area= Okada and Kaiho (1992), Kurita and Miwa (1998), Kurita et al (1998a); Honbetsu-zawa section= Matsui and Ganzawa (1987), Kurita et al (1998b); Satonbetsu section= Shibata and Tanai (1981), Kaiho (1983); Joban area= Yanagisawa and Suzuki (1987 Age support: Planktonic foraminifera Kaiho 1984aKaiho , 1990Kaiho , 1992 and calcareous nannofossils (Tanaka et al 1984). …”

Section: Chatangiella? Sp A-oligosphaeridium Complex Interval Zonementioning

confidence: 99%

“…Age support: Ages of 30.7±1.3Ma and 30.9±1.1Ma by fission-track dating of the pyroclastic layers from the Momijiyama Formation at the Panke-opiraruka section (Kurita and Miwa 1998) and an Early Oligocene or older age for the Asagai Formation, based on silicoflagellates and diatoms (Yanagisawa and Suzuki 1987). See Kurita and Miwa (1998) for detailed discussion of the age of the type section of this zone.…”

Section: Hexagonifera? Sp a Taxon-range Zonementioning

confidence: 99%

See 3 more Smart Citations

Paleogene dinoflagellate cyst biostratigraphy of northern Japan

Kitamura

2004

Micropaleontology

View full text Add to dashboard Cite

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.

show abstract

Section: Upper Middle Eocene To Lower Oligocenesupporting

confidence: 71%

Section: Upper Middle Eocene To Lower Oligocenementioning

confidence: 99%

Section: Chatangiella? Sp A-oligosphaeridium Complex Interval Zonementioning

confidence: 99%

Section: Hexagonifera? Sp a Taxon-range Zonementioning

confidence: 99%

See 2 more Smart Citations

Paleogene dinoflagellate cyst biostratigraphy of northern Japan

Kitamura

2004

Micropaleontology

View full text Add to dashboard Cite

show abstract

“…The Yubari succession comprises the Middle Eocene non-to shallow-marine Ishikari Group, shallow-marine Late Eocene to Early Oligocene Poronai Group, and shallow-to non-marine Early Oligocene Momijiyama Groups (Kurita and Miwa, 1998;. Kurita and Yokoi (2000) recently proposed a new stratigraphic unit which comprises shallow-marine sediments and subaqueous basaltic to andesitic rocks and is unconformably underlain by the Poronai Group and overlain by the Early Miocene Takinoue Formation (· 20 Ma: Watanabe et al, 1993).…”

Section: Haboro and Yubari Western Hokkaidomentioning

confidence: 99%