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First documentation of the Ordovician Guttenberg delta C-13 excursion (GICE) in Asia: chemostratigraphy of the Pagoda and Yanwashan formations in southeastern China

Bergstroem, Stig M. ; Xu, Chen ; Schmitz, Birger LU ; Young, Seth ; Jia-Yu, Rong and Saltzman, Matthew R. (2009) In Geological Magazine 146(1). p.1-11
Abstract
The only published VC data from the Ordovician of China are from the Lower and Upper Ordovician, and only the latter records include a significant excursion, namely the Hirnantian excursion (HICE). Our recent chemostratigraphic work on the Upper Ordovician (Sandbian-Katian) Pagoda and Yanwashan formations at several localities oil the Yangtze Platform and Chiangnan (Jiangnan) slope belt has resulted in the recognition of a positive delta C-13 excursion that has values of similar to+1.5 parts per thousand above baseline values. This excursion starts a few metres above a stratigraphic interval with B. alobatus Subzone conodonts as well as graptolites of the N. gracilis Zone. The distinctive conodonts Amorphognathus aff. Am. ventilatus and... (More)
The only published VC data from the Ordovician of China are from the Lower and Upper Ordovician, and only the latter records include a significant excursion, namely the Hirnantian excursion (HICE). Our recent chemostratigraphic work on the Upper Ordovician (Sandbian-Katian) Pagoda and Yanwashan formations at several localities oil the Yangtze Platform and Chiangnan (Jiangnan) slope belt has resulted in the recognition of a positive delta C-13 excursion that has values of similar to+1.5 parts per thousand above baseline values. This excursion starts a few metres above a stratigraphic interval with B. alobatus Subzone conodonts as well as graptolites of the N. gracilis Zone. The distinctive conodonts Amorphognathus aff. Am. ventilatus and Hamarodus europaeus first occur at, or very near, the excursion interval. Because these conodonts appear in the stratigraphic interval of the Guttenberg VC excursion (GICE) in Estonia, we identify the Chinese excursion as the GICE. This is the first record of the GICE in the entire Asian continent. It confirms that GICE is a global excursion and provides an illustration of how VC chemostratigraphy, combined with new biostratigraphic data, solves the problem of the previously controversial age of the Pagoda Formation and how this classical stratigraphic unit correlates with the Baltoscandian and North American successions. (Less)
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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
GICE, Upper Ordovician, Guttenberg carbon isotope excursion, conodonts, Pagoda Formation, China
in
Geological Magazine
volume
146
issue
1
pages
1 - 11
publisher
Cambridge University Press
external identifiers
  • wos:000262606100001
  • scopus:74249106158
ISSN
0016-7568
DOI
10.1017/S0016756808005748
language
English
LU publication?
yes
id
0a20e498-85f1-4d87-b498-5bd25f139468 (old id 1312616)
date added to LUP
2016-04-01 12:02:32
date last changed
2025-04-04 14:57:48
@article{0a20e498-85f1-4d87-b498-5bd25f139468,
  abstract     = {{The only published VC data from the Ordovician of China are from the Lower and Upper Ordovician, and only the latter records include a significant excursion, namely the Hirnantian excursion (HICE). Our recent chemostratigraphic work on the Upper Ordovician (Sandbian-Katian) Pagoda and Yanwashan formations at several localities oil the Yangtze Platform and Chiangnan (Jiangnan) slope belt has resulted in the recognition of a positive delta C-13 excursion that has values of similar to+1.5 parts per thousand above baseline values. This excursion starts a few metres above a stratigraphic interval with B. alobatus Subzone conodonts as well as graptolites of the N. gracilis Zone. The distinctive conodonts Amorphognathus aff. Am. ventilatus and Hamarodus europaeus first occur at, or very near, the excursion interval. Because these conodonts appear in the stratigraphic interval of the Guttenberg VC excursion (GICE) in Estonia, we identify the Chinese excursion as the GICE. This is the first record of the GICE in the entire Asian continent. It confirms that GICE is a global excursion and provides an illustration of how VC chemostratigraphy, combined with new biostratigraphic data, solves the problem of the previously controversial age of the Pagoda Formation and how this classical stratigraphic unit correlates with the Baltoscandian and North American successions.}},
  author       = {{Bergstroem, Stig M. and Xu, Chen and Schmitz, Birger and Young, Seth and Jia-Yu, Rong and Saltzman, Matthew R.}},
  issn         = {{0016-7568}},
  keywords     = {{GICE; Upper Ordovician; Guttenberg carbon isotope excursion; conodonts; Pagoda Formation; China}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{1--11}},
  publisher    = {{Cambridge University Press}},
  series       = {{Geological Magazine}},
  title        = {{First documentation of the Ordovician Guttenberg delta C-13 excursion (GICE) in Asia: chemostratigraphy of the Pagoda and Yanwashan formations in southeastern China}},
  url          = {{http://dx.doi.org/10.1017/S0016756808005748}},
  doi          = {{10.1017/S0016756808005748}},
  volume       = {{146}},
  year         = {{2009}},
}