globalchange  > 气候变化与战略
DOI: 10.1016/j.epsl.2020.116275
论文题名:
Carnian (Late Triassic) magnetostratigraphy from the Germanic Basin allowing global correlation of the Mid-Carnian Episode
作者: Zhang Y.; Ogg J.G.; Franz M.; Bachmann G.H.; Szurlies M.; Röhling H.-G.; Li M.; Rolf C.; Obst K.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2020
卷: 541
语种: 英语
中文关键词: Central European Basin ; geomagnetic polarity time scale ; Julian ; Pignola-2 ; South China ; Tuvalian
英文关键词: Earth (planet) ; Volcanoes ; Earth's climate ; Global correlation ; High resolution ; Late Triassic ; Magnetostratigraphy ; Marine record ; Siliciclastics ; South America ; Magnetic polarity ; Carnian ; correlation ; magnetostratigraphy ; Triassic ; volcanic ash ; China ; Germanic Basin ; Italy ; Yangtze Platform ; Dinosauria
英文摘要: The Stuttgart Formation (traditionally called the Schilfsandstein) in the Germanic Basin (or Central European Basin) is a sand-rich episode representing the Mid-Carnian Episode within the gypsum-rich clayey semi-arid Keuper facies. That regional Mid-Carnian Episode is now recognized to be a manifestation of a significant global disruption of Earth's climate-ocean-biological system during the early Late Triassic. In order to provide an accurate time frame and means for high-resolution correlations among continental and marine records, we obtained a composite magnetostratigraphy spanning the entire Carnian from three boreholes in the Germanic Basin. This composite shows a good consistency with earlier published magnetostratigraphy results from South China and enables the construction of a complete Carnian polarity time scale. The upper Carnian (Tuvalian substage) portion implies that: (1) The lower quarter of the Tuvalian is dominated by a reversed-polarity magnetozone; (2) The termination of the Yangtze Platform is coeval with deposition of the Stuttgart Formation in the Germanic Basin; (3) The radiolarian-rich green-colored clay horizon of the Pignola-2 section in south Italy that is below a volcanic ash bed dated as ca. 231 Ma correlates with the D pulse of siliciclastics in Dibona section of north Italy in the middle of the Tuvalian; (4) The upper three-fourths of the Tuvalian is a major normal-polarity-dominated magnetozone; and this interval correlates with the basal E1-E6 portion of the Newark magnetic polarity reference series according to the favored correlation option; (5) The base of the Arnstadt Formation of the Germanic Basin, which had been traditionally assigned as the Carnian/Norian boundary, instead begins within the lower portion of Newark reversed-polarity zone E8r of earliest Norian according to the favored age model, although pending future verification; (6) The polarity patterns of portions of the upper Carnian from the western Tethys sections of Lower Trench at Silická Brezová in Austria and Pizzo Mondello in Italy are verified. This Carnian composite is an enhanced polarity time scale for calibration of other global Carnian successions and events, such as the appearance of the earliest dinosaurs in fossiliferous beds of South America. © 2020 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165384
Appears in Collections:气候变化与战略

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作者单位: Dept. of Earth, Atmospheric and Planetary Sciences, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907-2051, United States; State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan 610059, China; Geowissenschaftliches Zentrum der Universität Göttingen, Abteilung Angewandte Geologie, Goldschmidtstraße 3, Göttingen, D-37077, Germany; Institut für Geowissenschaften, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), D-06120, Germany; Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Stilleweg 2, Hannover, D-30655, Germany; Erich-Baron-Weg 100, Berlin, D-12623, Germany; Department of Geosciences, Pennsylvania State University, University Park, PA 16802, United States; Leibniz-Institut für Angewandte Geophysik, Sektion 5 Gesteinsphysik und Bohrlochgeophysik, Stilleweg 2, Hannover, D-30655, Germany; Landesamt für Umwelt, Naturschutz und Geologie Mecklenburg-Vorpommern, Goldberger Str. 12, Güstrow, D-18273, Germany

Recommended Citation:
Zhang Y.,Ogg J.G.,Franz M.,et al. Carnian (Late Triassic) magnetostratigraphy from the Germanic Basin allowing global correlation of the Mid-Carnian Episode[J]. Earth and Planetary Science Letters,2020-01-01,541
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