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The first continuous δ13C record across the Late Silurian Lau Event on Gotland, Sweden

Younes, Hani; Calner, Mikael LU and Lehnert, Oliver (2017) In GFF 139(1). p.63-69
Abstract

The positive δ13C excursion associated with the Late Silurian Lau Event is recognized globally and is the most prominent carbon isotope excursion of the Phanerozoic. We present new δ13C data (195 samples) and the first continuous carbon isotope stratigraphy across the stratigraphic range of this bioevent based on two drill cores from Gotland, the informal type area for the Lau Event. The positive δ13C anomaly reaches a peak value of 9.01‰ in an interval correlated to the Icriodontid conodont Zone in the upper Eke Formation, an interval with generally impoverished fauna and strongly dominated by one single conodont species, Panderodus equicostatus, and a mass-occurrence of oncoids. The distinct morphology... (More)

The positive δ13C excursion associated with the Late Silurian Lau Event is recognized globally and is the most prominent carbon isotope excursion of the Phanerozoic. We present new δ13C data (195 samples) and the first continuous carbon isotope stratigraphy across the stratigraphic range of this bioevent based on two drill cores from Gotland, the informal type area for the Lau Event. The positive δ13C anomaly reaches a peak value of 9.01‰ in an interval correlated to the Icriodontid conodont Zone in the upper Eke Formation, an interval with generally impoverished fauna and strongly dominated by one single conodont species, Panderodus equicostatus, and a mass-occurrence of oncoids. The distinct morphology of this Late Ludfordian Carbon Isotope Excursion, including a well-defined rising limb, a plateau and a falling limb can be used for intercontinental correlation of the strata.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Carbon isotope geochemistry, extinction, Gotland, Late Ludfordian Carbon Isotope Excursion, Lau Event, Silurian
in
GFF
volume
139
issue
1
pages
63 - 69
publisher
Geological Society of Sweden
external identifiers
  • scopus:84988360283
  • wos:000392852200007
ISSN
1103-5897
DOI
10.1080/11035897.2016.1227362
language
English
LU publication?
yes
id
25fe538a-aca2-4cb3-bc3f-c77ae931606e
date added to LUP
2016-11-03 11:15:58
date last changed
2018-01-07 11:33:22
@article{25fe538a-aca2-4cb3-bc3f-c77ae931606e,
  abstract     = {<p>The positive δ<sup>13</sup>C excursion associated with the Late Silurian Lau Event is recognized globally and is the most prominent carbon isotope excursion of the Phanerozoic. We present new δ<sup>13</sup>C data (195 samples) and the first continuous carbon isotope stratigraphy across the stratigraphic range of this bioevent based on two drill cores from Gotland, the informal type area for the Lau Event. The positive δ<sup>13</sup>C anomaly reaches a peak value of 9.01‰ in an interval correlated to the Icriodontid conodont Zone in the upper Eke Formation, an interval with generally impoverished fauna and strongly dominated by one single conodont species, Panderodus equicostatus, and a mass-occurrence of oncoids. The distinct morphology of this Late Ludfordian Carbon Isotope Excursion, including a well-defined rising limb, a plateau and a falling limb can be used for intercontinental correlation of the strata.</p>},
  author       = {Younes, Hani and Calner, Mikael and Lehnert, Oliver},
  issn         = {1103-5897},
  keyword      = {Carbon isotope geochemistry,extinction,Gotland,Late Ludfordian Carbon Isotope Excursion,Lau Event,Silurian},
  language     = {eng},
  number       = {1},
  pages        = {63--69},
  publisher    = {Geological Society of Sweden},
  series       = {GFF},
  title        = {The first continuous δ<sup>13</sup>C record across the Late Silurian Lau Event on Gotland, Sweden},
  url          = {http://dx.doi.org/10.1080/11035897.2016.1227362},
  volume       = {139},
  year         = {2017},
}