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            C Chemostratigraphy of the Ordovician‐Silurian Boundary Interval

Bergström, Stig M.; Goldman, Daniel

doi:10.1002/9781119382508.ch8

Cited by 3 publications

(2 citation statements)

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“…Although some relatively high δ 13 C carb values (above 2‰) were reported from the upper Rhuddanian of Baltoscandia (Gouldey, Saltzman, Young, & Kaljo, 2010;Kaljo & Martma, 2000), distinct shifts are lacking. Hence, the Wulipo carbon isotope excursion is interpreted herein as representing the HICE, an isotopic excursion now recognized as substantially constrained within the Hirnantian (Bergström & Goldman, 2019;Wang et al, 2019).…”

Section: Methodsmentioning

confidence: 98%

“…The Hirnantian Stage (uppermost Ordovician) records a prominent carbon isotope excursion worldwide, termed the Hirnantian Isotope Carbon Excursion (HICE), which has been shown to be a useful tool for global stratigraphic correlation (Ainsaar, Truumees, & Meidla, 2015;Bergström & Goldman, 2019;Bergström, Kleffner, & Schmitz, 2012;Demski et al, 2015;Wang et al, 2019). In this study, we present for the first time δ 13 C carb chemostratigraphic data from the Wulipo Formation of the Huangjiaba area.…”

Section: Introductionmentioning

confidence: 97%

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Constraining the biotic transitions across the end‐Ordovician mass extinction in South China: Bio‐ and chemostratigraphy of the Wulipo Formation in the Meitan area of northern Guizhou

et al. 2020

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The richly fossiliferous succession of the Wulipo Formation in the Huangjiaba area near Meitan in northern Guizhou, SW China, represents one of the very rare records of shelly fauna across the Ordovician and Silurian transition worldwide. This area is therefore crucial for understanding the pattern and dynamics of the end‐Ordovician mass extinction (EOME). Historically, the Wulipo Formation was dated as middle Rhuddanian (early Silurian). However, its fauna shows a close affinity with Transitional Benthic Fauna 3 (TBF 3), now known to be confined within the late Hirnantian (latest Ordovician) in well‐constrained successions globally. Here we present for the first time, chemostratigraphic data from the Wulipo Formation which confirm the presence of the Hirnantian Isotope Carbon Excursion. A critical review of faunal evidence further indicates a late Hirnantian age for this formation, and thus the hitherto only known anomalous TBF 3 record documented from South China is convincingly redated. The important implication is that the substantial biotic recovery after the EOME commenced globally at the very beginning of the Silurian with an overall amelioration of physical conditions. The new findings also suggest a much wider distribution of postglacial warm‐water benthic faunas on the Yangtze Platform during the late Hirnantian than previously envisaged.

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Section: Methodsmentioning

confidence: 98%