气候变化领域集成服务门户(CCPortal): High-precision radioisotopic ages for the lower Midian (upper Wordian)Stage of the Tethyan time scale; Shigeyasu Quarry; Yamaguchi Prefecture; Japan

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DOI	10.1016/j.palaeo.2019.04.008
	High-precision radioisotopic ages for the lower Midian (upper Wordian)Stage of the Tethyan time scale; Shigeyasu Quarry; Yamaguchi Prefecture; Japan
	Davydov V.I.; Schmitz M.D.
发表日期	2019
ISSN	0031-0182
起始页码	133
结束页码	145
卷号	527
英文摘要	Global correlation of strata to the Guadalupian Series (Permian Period)of the International Geologic Time Scale remains provisional due to a lack of the sufficient biostratigraphically constrained radioisotopic ages. Five new high-precision U[sbnd]Pb radioisotopic ages were obtained from tuffs in the lower Midian (upper Wordian)volcano-siliciclastic succession of the Akiyoshi Plateau, southwestern Japan. Two undisturbed and continuous tuffs occur within fusulinid-bearing laminated limestone turbidites, with precise biostratigraphic control. The Colania douvillei and Lepidolina shiraiwensis fusulinid Zones in the Akiyoshi succession provide an early Midian age in the Tethyan provincial time scale. The range of ages (267.46 ± 0.04 Ma to 265.76 ± 0.03 Ma)over 25 m of section including the limestone turbiditic beds suggest that this lower Midian Stage of the Tethyan time scale is correlated with the upper Wordian Stage of the International Geologic Time Scale. The sedimentologic, bio- and geochronologic data affirm the effectively conformable nature of the siliciclastic‑carbonate succession of the Tsunemori Formation at the Shigeyasu Quarry, and the presence of acidic volcanic tuffs are consistent with a forearc basin or trench slope basin depocenter for the Tsunemori Formation. © 2019
英文关键词	CA-IDITIMS; Correlation; Fusulinids biostratigraphy; Guadalupian (middle Permian); Tethyan Timescale
语种	英语
scopus关键词	biostratigraphy; correlation; depocenter; foraminifera; forearc basin; Guadalupian; lamination; limestone; radiocarbon dating; Tethys; time series analysis; Akiyoshi Plateau; Chugoku; Honshu; Japan; Yamaguchi [Chugoku]; Fusulinida
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150939
作者单位	Department of Geosciences, Boise State University, Boise, ID 83725, United States; Kazan Federal University, 18 Kremlyovskaya St., Kazan, Republic of Tatarstan 420008, Russian Federation
推荐引用方式 GB/T 7714	Davydov V.I.,Schmitz M.D.. High-precision radioisotopic ages for the lower Midian (upper Wordian)Stage of the Tethyan time scale; Shigeyasu Quarry; Yamaguchi Prefecture; Japan[J],2019,527.
APA	Davydov V.I.,&Schmitz M.D..(2019).High-precision radioisotopic ages for the lower Midian (upper Wordian)Stage of the Tethyan time scale; Shigeyasu Quarry; Yamaguchi Prefecture; Japan.Palaeogeography, Palaeoclimatology, Palaeoecology,527.
MLA	Davydov V.I.,et al."High-precision radioisotopic ages for the lower Midian (upper Wordian)Stage of the Tethyan time scale; Shigeyasu Quarry; Yamaguchi Prefecture; Japan".Palaeogeography, Palaeoclimatology, Palaeoecology 527(2019).