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Devonian integrative stratigraphy and timescale of China

Published on Jan 1, 2019in Science China-earth Sciences2.258
· DOI :10.1007/s11430-017-9259-9
Wenkun Qie7
Estimated H-index: 7
(CAS: Chinese Academy of Sciences),
Xueping Ma1
Estimated H-index: 1
(PKU: Peking University)
+ 6 AuthorsJianfeng Lu2
Estimated H-index: 2
(CAS: Chinese Academy of Sciences)
Abstract
The Global Boundary Stratotype Sections and Points (GSSPs) for the bases of all seven international Devonian stages have been formally defined and ratified by IUGS till 1996, and nowadays, the main tasks for Devonian stratigraphers include further subdivision of these standard stages, strictly constrained absolute ages for the boundaries, and precise neritic-pelagic and marine-terrestrial correlations using multidisciplinary stratigraphy methods. Establishment of high-resolution Devonian integrative stratigraphy framework and timescale of China would play an important role in improving regional and international correlation, facilitating the recognition of important stratigraphic levels in different paleogeographic settings, and understanding the evolution pattern of biota, paleoclimate and paleoenvironment during this critical interval. Based on well-studied bio- and chronostratigraphy of Devonian in South China and adjacent areas, in combination with recent achievements in carbon isotope stratigraphy, event stratigraphy and radioactive isotope ages, this paper briefly summarize the research history and current status of Devonian chronostratigraphy of China, and for the first time introduce Devonian integrative stratigraphy framework of China. Up to date, few studies have been conducted on the astronomical cyclostratigraphy and high-resolution radioactive isotope dating in Devonian of China, which should be our main focuses in the near future.
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References93
Newest
#1L. M. E. Percival (UNIL: University of Lausanne)H-Index: 1
#2Joshua H.F.L. Davies (University of Geneva)H-Index: 10
Last. Karl B. Föllmi (UNIL: University of Lausanne)H-Index: 34
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The Frasnian–Famennian boundary records one of the most catastrophic mass extinctions of the Phanerozoic Eon. Several possible causes for this extinction have been suggested, including extra-terrestrial impacts and large-scale volcanism. However, linking the extinction with these potential causes is hindered by the lack of precise dating of either the extinction or volcanic/impact events. In this study, a bentonite layer in uppermost-Frasnian sediments from Steinbruch Schmidt (Germany) is re-ana...
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#1Chang-Min YuH-Index: 1
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#2Meiqiong Zhang (PKU: Peking University)H-Index: 2
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Abstract As one of the “Big Five” mass extinctions in Phanerozoic, the Frasnian-Famennian (F-F) boundary event records the extinction of 40 % of marine invertebrate genera. The F-F boundary is defined by the first appearance of conodont Palmatolepis subperlobata as well as the abundant occurrences of Pa. ultima at the base of the Lower Pa. triangularis Zone. The F-F boundary is also broadly coincident with a positive excursion in carbon isotopes, suggesting the possible linkage between the pertu...
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Abstract The Early Devonian geological time scale (base of the Devonian at 418.8 ± 2.9 Myr , Becker et al., 2012 ) suffers from poor age control, with associated large uncertainties between 2.5 and 4.2 Myr on the stage boundaries. Identifying orbital cycles from sedimentary successions can serve as a very powerful chronometer to test and, where appropriate, improve age models. Here, we focus on the Lochkovian and Pragian, the two lowermost Devonian stages. High-resolution magnetic susceptibility...
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#1Ting Nie (PKU: Peking University)H-Index: 1
#2Wen Guo (PKU: Peking University)H-Index: 2
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Abstract Conodont biostratigraphical work was done at four sections recently found with occurrence of the rhynchonellide brachiopod genus, Dzieduszyckia Siemiradzki, in southern Guangxi and in the border area between Dushan County of Guizhou and Nandan County of Guangxi, South China. These sections represent two different types of facies, i.e., carbonate platform and intraplatform basin. The conodont analysis reveals that this genus occurs in the Upper triangularis Zone and the Middle crepida Zo...
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