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Titolo:
Ordovician trilobite faunas and depositional history of the Taebaeksan Basin, Korea: implications for palaeogeography
Autore:
Choi, DK; Kim, DH; Sohn, JW;
Indirizzi:
Seoul Natl Univ, Sch Earth & Environm Sci, Seoul 151742, South Korea SeoulNatl Univ Seoul South Korea 151742 Sci, Seoul 151742, South Korea
Titolo Testata:
ALCHERINGA
fascicolo: 1-2, volume: 25, anno: 2001,
pagine: 53 - 68
SICI:
0311-5518(2001)25:1-2<53:OTFADH>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
BELT SOUTH-KOREA; DUMUGOL FORMATION; CHINA; COLLISION; NORTH; ASIA;
Keywords:
Ordovician; Trilobita; Korea; palaeogeography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
84
Recensione:
Indirizzi per estratti:
Indirizzo: Choi, DK Seoul Natl Univ, Sch Earth & Environm Sci, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 ul 151742, South Korea
Citazione:
D.K. Choi et al., "Ordovician trilobite faunas and depositional history of the Taebaeksan Basin, Korea: implications for palaeogeography", ALCHERINGA, 25(1-2), 2001, pp. 53-68

Abstract

The Taebaeksan Basin occupies the central-eastern part of the Korean peninsula and was a low-relief shallow marine carbonate shelf on which the Cambro-Ordovician Choson Supergroup was deposited. In the Taebaeksan Basin trilobites are among the most dominant fossil groups in the Lower Ordovician, but they become less important in Middle Ordovician faunal assemblages. The Early Ordovician trilobite faunas of the Taebaeksan Basin are characterised by the common occurrence of pandemic genera such as Jujuyaspis, Leiostegium, Asaphellus, Protopliomerops, Hystricurus, Apatokephalus, Shumardia, Asaphopsoides, and Kayseraspis. Biogeographically significant trilobite taxa include Yosimuraspis, Dikelokephalina, Koraipsis, and Chosenia. These Ordovician trilobite faunas, which thrived in shallow marine environments, show a remarkable similarity with faunas from North China, implying that the Taebaeksan Basin was connected through contiguous shallow waters to North China. These Sino-Korean faunas exhibit a close biogeographic connection with Australian faunas, with which they share some endemic genera, whereas they are more distantly related to the faunas of South China, South America, and North America. Based on these palaeobiogeographical features, it is suggested that in the early Palaeozoic much of the present Korean peninsula includingthe Taebaeksan Basin belonged to the Sino-Korean block, while part of the peninsula was derived from the Yangtze block.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/10/20 alle ore 08:48:41