EurekaMag.com logo
+ Site Statistics
References:
47,893,527
Abstracts:
28,296,643
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Triassic bryozoans from the hidaka group in hokkaido japan






Transactions & Proceedings of the Palaeontological Society of Japan New Series (114): 77-86

Triassic bryozoans from the hidaka group in hokkaido japan

Bryozoan species [5] from the Hidaka Group: Leioclema sugiyamai sp. nov., Leioclema sp. indeterminate, Pseudobatostomella kobayashii Sakagami, Dyscritella hidakaensis sp. nov. and Dyscritella sp. indeterminate are described. L. sugiyamai and P. kobayashii, which was described originally from the Upper Triassic Kochigatani Series of the Sakawa basin, are identical with Batostomella (1) and Batostomella? (2), respectively, both of which were recorded from the Hidaka Group by Sugiyama (1941). This bryozoan fauna is Late Triassic probably Early Carnian) in age. It also is supported by the conodont fauna associated with the bryozoans.


Accession: 006840729



Related references

Igo, H.; Koike, T.; Igo, H.; Kinoshita, T., 1974: On the occurrence of Triassic conodonts from the Sorachi Group in the Hidaka Mountains, Hokkaido. Journal geol Soc Japan, 803: 135-136

Ishizaki, S., 1979: Find of Triassic bryozoans from the Pre-Yezo Group in the Esashi Mountains, Hokkaido. Earth Science (Tokyo): 336: 355-359

Watanabe Yasushi; Iwata Keiji, 1987: The Hidaka Supergroup in the Tomuraushi region, Hidaka Belt, Hokkaido, Japan. Chikyu Kagaku = Earth Science 41(1(208)): 35-47

Kontani Yoshihiro; Kiminami Kazuo, 1980: Petrological study of the sandstones in the pre-Cretaceous Yubetsu Group, northeastern Hidaka Belt, Hokkaido, Japan. Chikyu Kagaku = Earth Science 34(6): 307-319

Maeda, J.; Zeniya, R.; Kuramoto, Y.; Itaya, T.; Kagami, H., 2011: Isotopic ages of the Pankenushi olivine gabbro complex, Hidaka magmatic belt, central Hokkaido, Japan; implications for the tectonic setting of Hidaka magmatism. Isotopic ages (K-Ar hornblende: 17.5+ or -0.6 Ma; K-Ar biotite: 17.3+ or -0.4 Ma; Rb-Sr biotite: 17.3+ or -0.1 Ma) were determined for a ferrogabbro of the Pankenushi gabbroic complex, Hidaka magmatic belt, central Hokkaido. These ages are consist...

Kazuka Takuro; Kikuchi Shinsuke; Ito Tanio, 2002: Structure of the foreland fold-and-thrust belt, Hidaka collision zone, Hokkaido, Japan; re-processing and re-interpretation of the JNOC seismic reflection profiles Hidaka (H91-2 and H91-3). A foreland fold-and-thrust belt has been growing west of the Hidaka Collision Zone (HCZ) since middle Miocene, associated with the collision between the Kuril and the Northeast Japanese island arcs (Fig. 1). The active front of the belt reaches th...

Nanayama Futoshi; Kanamatsu Toshiya; Fujiwara Yoshiki, 1993: Sedimentary petrology and paleotectonic analysis of the arc-arc junction; the Paleocene Nakanogawa Group in the Hidaka Belt, central Hokkaido, Japan. Two arc-trench systems have been recognized by using paleomagnetic data in the Hokkaido Central Belt, northeast Japan, during Late Cretaceous to Early Paleogene: the Paleo-Japan and the Paleo-Kuril arc-trench systems. The Hidaka Belt is composed m...

Kawanami Seishi; Nakano Nobuhiko; Osanai Yasuhito; Kagami Hiroo; Owada Masaaki, 2006: Protoliths of the high-grade amphibolites from the main zone of the Hidaka metamorphic belt in Hokkaido, northern Japan and comparison with greenstones in the northern Hidaka Belt. The Hidaka belt is situated in the central part of Hokkaido island, northern Japan. The southern part of the belt is composed mainly of Tertiary metamorphic and plutonic rocks defined as the Main Zone of the Hidaka metamorphic belt. Various types...

Bamba Takeo, 1972: So-called Hidaka jade from Hokkaido, Japan. Chrome diopside, network of veins, metamorphism, textures.

Minato Masao; Hashimoto S., 1954: Zur Karbildung im Hidaka-Gebirge, Hokkaido, Japan. Cirques occur on the east slopes, mainly in the northern part, of the Hidaka mountains, Hokkaido, Japan, at elevations of about 1,640 meters. Moraines in the steep-sided cirques are of two ages. They are provisionally assigned to the Riss and Wuer...