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Carbon isotope chemostratigraphy of the Late Silurian Lau Event, Gotland, Sweden

Younes, Hani LU (2012) In Dissertations in Geology at Lund University GEOR02 20121
Department of Geology
Abstract
The positive δ13C excursion associated with the Late Silurian Lau Event (approximately 420 Ma) is recognized
globally and considered to be one of the most prominent carbon isotope excursions of the Phanerozoic. Its
maximum values are exceeded only by values from the Proterozoic. Over the last years the Lau Event has been studied
in great detail on the island of Gotland, Sweden (Baltica palaeocontinent). These studies include lithological
successions and high-resolution conodont biostratigraphy, as well as δ13C chemostratigraphy. For these reasons,
Gotland is considered the standard classical model for studying the Lau Event. The purpose of the present study is
to produce the first continuous, high-resolution δ13C stratigraphy across... (More)
The positive δ13C excursion associated with the Late Silurian Lau Event (approximately 420 Ma) is recognized
globally and considered to be one of the most prominent carbon isotope excursions of the Phanerozoic. Its
maximum values are exceeded only by values from the Proterozoic. Over the last years the Lau Event has been studied
in great detail on the island of Gotland, Sweden (Baltica palaeocontinent). These studies include lithological
successions and high-resolution conodont biostratigraphy, as well as δ13C chemostratigraphy. For these reasons,
Gotland is considered the standard classical model for studying the Lau Event. The purpose of the present study is
to produce the first continuous, high-resolution δ13C stratigraphy across the stratigraphic range of the event. The
δ13C record is based on two drill cores (Uddvide-1 and Ronehamn-1) and work as a standard model for global correlation
of the event. The generated profiles have high positive peak values of 8.03 ‰ and 9.01 ‰ respectively in
Uddvide-1 and Ronehamn-1 drill cores. Both profiles have the typical model of the Lau Event consisting of rising
limb, plateau and falling limb. The correlation not only improves the knowledge on Ludlow stratigraphy but also
helps to understand the evolution of climate, marine ecosystems and depositional environment during the Ludfordian.
In doing so, the cause of this high positive δ13C excursion will be better understood. (Less)
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author
Younes, Hani LU
supervisor
organization
course
GEOR02 20121
year
type
H2 - Master's Degree (Two Years)
subject
keywords
high-resolution correlation, conodonts, carbon isotope excursion, Gotland, extinction, Silurian, Lau Event, microbial resurgence
publication/series
Dissertations in Geology at Lund University
report number
318
funder
European Commission, Erasmus/Socrates Program
language
English
additional info
External supervisor: Oliver Lehnert, professor Geozentrum Nordbayern,
Universität Erlangen-Nürnberg
id
3168421
date added to LUP
2012-11-15 11:37:41
date last changed
2015-04-02 03:57:48
@misc{3168421,
  abstract     = {The positive δ13C excursion associated with the Late Silurian Lau Event (approximately 420 Ma) is recognized
globally and considered to be one of the most prominent carbon isotope excursions of the Phanerozoic. Its
maximum values are exceeded only by values from the Proterozoic. Over the last years the Lau Event has been studied
in great detail on the island of Gotland, Sweden (Baltica palaeocontinent). These studies include lithological
successions and high-resolution conodont biostratigraphy, as well as δ13C chemostratigraphy. For these reasons,
Gotland is considered the standard classical model for studying the Lau Event. The purpose of the present study is
to produce the first continuous, high-resolution δ13C stratigraphy across the stratigraphic range of the event. The
δ13C record is based on two drill cores (Uddvide-1 and Ronehamn-1) and work as a standard model for global correlation
of the event. The generated profiles have high positive peak values of 8.03 ‰ and 9.01 ‰ respectively in
Uddvide-1 and Ronehamn-1 drill cores. Both profiles have the typical model of the Lau Event consisting of rising
limb, plateau and falling limb. The correlation not only improves the knowledge on Ludlow stratigraphy but also
helps to understand the evolution of climate, marine ecosystems and depositional environment during the Ludfordian.
In doing so, the cause of this high positive δ13C excursion will be better understood.},
  author       = {Younes, Hani},
  keyword      = {high-resolution correlation,conodonts,carbon isotope excursion,Gotland,extinction,Silurian,Lau Event,microbial resurgence},
  language     = {eng},
  note         = {Student Paper},
  series       = {Dissertations in Geology at Lund University},
  title        = {Carbon isotope chemostratigraphy of the Late Silurian Lau Event, Gotland, Sweden},
  year         = {2012},
}