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Miaolingian (Cambrian) trilobite biostratigraphy and carbon isotope chemostratigraphy in the Tingskullen drill core, Öland, Sweden

Ahlberg, Per LU ; Lundberg, Frans LU ; Calner, Mikael LU orcid ; Lehnert, Oliver ; Dahlqvist, Peter and Joachimski, Michael M. (2021) In Estonian Journal of Earth Sciences 70(1). p.18-35
Abstract
The Cambrian succession of the Tingskullen drill core from northern Öland comprises Cambrian Series 2 and Miaolingian (Wuliuan Stage) siliciclastic strata. The major portion of the succession is represented by the Miaolingian Borgholm Formation, which, in ascending order, is subdivided into the Mossberga, Bårstad and Äleklinta members. The Äleklinta Member is barren of body fossils, whereas the Mossberga and Bårstad members are moderately to highly fossiliferous and biostratigraphically reasonably well constrained. Trilobites and agnostoids from the Bårstad Member are indicative of the Acadoparadoxides pinus Zone.
The Mossberga Member has not yielded any zonal guide fossils but is tentatively assigned to the Eccaparadoxides... (More)
The Cambrian succession of the Tingskullen drill core from northern Öland comprises Cambrian Series 2 and Miaolingian (Wuliuan Stage) siliciclastic strata. The major portion of the succession is represented by the Miaolingian Borgholm Formation, which, in ascending order, is subdivided into the Mossberga, Bårstad and Äleklinta members. The Äleklinta Member is barren of body fossils, whereas the Mossberga and Bårstad members are moderately to highly fossiliferous and biostratigraphically reasonably well constrained. Trilobites and agnostoids from the Bårstad Member are indicative of the Acadoparadoxides pinus Zone.
The Mossberga Member has not yielded any zonal guide fossils but is tentatively assigned to the Eccaparadoxides insularis Zone. A δ13Corg curve throughout the Borgholm Formation shows a general positive trend up­section without any distinctive excursion, suggesting that the Wuliuan Acadoparadoxides (Baltoparadoxides) oelandicus Superzone (the ‘Oelandicus beds’) of Öland is younger than the negative Redlichiid–Olenellid Extinction Carbon isotope Excursion (ROECE), which is known from near the top of Stage 4 and close to the traditional ‘Lower–Middle Cambrian boundary’ in several parts of the world. (Less)
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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Biostratigraphy, Carbon isotope stratigraphy, Miaolingian Series, Wuliuan Stage, Cambrian, Öland, Sweden
in
Estonian Journal of Earth Sciences
volume
70
issue
1
pages
18 pages
publisher
Estonian Academy Publishers
external identifiers
  • scopus:85099604457
ISSN
1736-7557
DOI
10.3176/earth.2021.03
language
English
LU publication?
yes
id
f41e6d71-73fd-41b9-b805-46ce6d2a5311
date added to LUP
2022-01-07 12:18:12
date last changed
2023-03-08 04:06:39
@article{f41e6d71-73fd-41b9-b805-46ce6d2a5311,
  abstract     = {{The Cambrian succession of the Tingskullen drill core from northern Öland comprises Cambrian Series 2 and Miaolingian (Wuliuan Stage) siliciclastic strata. The major portion of the succession is represented by the Miaolingian Borgholm Formation, which, in ascending order, is subdivided into the Mossberga, Bårstad and Äleklinta members. The Äleklinta Member is barren of body fossils, whereas the Mossberga and Bårstad members are moderately to highly fossiliferous and biostratigraphically reasonably well constrained. Trilobites and agnostoids from the Bårstad Member are indicative of the <i>Acadoparadoxides pinus</i> Zone.<br/>The Mossberga Member has not yielded any zonal guide fossils but is tentatively assigned to the <i>Eccaparadoxides insularis</i> Zone. A δ13Corg curve throughout the Borgholm Formation shows a general positive trend up­section without any distinctive excursion, suggesting that the Wuliuan <i>Acadoparadoxides</i> (<i>Baltoparadoxides</i>) <i>oelandicus</i> Superzone (the ‘Oelandicus beds’) of Öland is younger than the negative Redlichiid–Olenellid Extinction Carbon isotope Excursion (ROECE), which is known from near the top of Stage 4 and close to the traditional ‘Lower–Middle Cambrian boundary’ in several parts of the world.}},
  author       = {{Ahlberg, Per and Lundberg, Frans and Calner, Mikael and Lehnert, Oliver and Dahlqvist, Peter and Joachimski, Michael M.}},
  issn         = {{1736-7557}},
  keywords     = {{Biostratigraphy; Carbon isotope stratigraphy; Miaolingian Series; Wuliuan Stage; Cambrian; Öland; Sweden}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{1}},
  pages        = {{18--35}},
  publisher    = {{Estonian Academy Publishers}},
  series       = {{Estonian Journal of Earth Sciences}},
  title        = {{Miaolingian (Cambrian) trilobite biostratigraphy and carbon isotope chemostratigraphy in the Tingskullen drill core, Öland, Sweden}},
  url          = {{http://dx.doi.org/10.3176/earth.2021.03}},
  doi          = {{10.3176/earth.2021.03}},
  volume       = {{70}},
  year         = {{2021}},
}