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Correlation of the Thanetian-Ilerdian turnover of larger foraminifera and the Paleocene-Eocene thermal maximum: confirming evidence from the Campo area (Pyrenees, Spain)

Pujalte, V.; Schmitz, Birger LU ; Baceta, J.L. and Orue-Etxebarria, X. (2009) In Geologica Acta 7(1-2). p.161-175
Abstract (Swedish)
Abstract in Undetermined

It has long been known that a major larger foraminifera turnover (LFT) occurred at the boundary between the Thanetian and Ilerdian stages, but its possible correlation with the Paleocene-Eocene thermal maximum (PETM) was unsuspected until the work of Baceta (1996), and has been controversial ever since. After summarizing the history of this controversy, we present information from three new sections that conclusively resolve the issue, all of them placed less than 2 km to the east of the classical Campo section in the southern Pyrenees. In these three sections, an up to 7 meter-thick intercalation of continental deposits rich in pedogenic carbonate nodules is sandwiched between uppermost Thanetian... (More)
Abstract in Undetermined

It has long been known that a major larger foraminifera turnover (LFT) occurred at the boundary between the Thanetian and Ilerdian stages, but its possible correlation with the Paleocene-Eocene thermal maximum (PETM) was unsuspected until the work of Baceta (1996), and has been controversial ever since. After summarizing the history of this controversy, we present information from three new sections that conclusively resolve the issue, all of them placed less than 2 km to the east of the classical Campo section in the southern Pyrenees. In these three sections, an up to 7 meter-thick intercalation of continental deposits rich in pedogenic carbonate nodules is sandwiched between uppermost Thanetian and lowermost Ilerdian shallow marine carbonates. The delta(13)C composition of 42 pedogenic nodules collected from two of these sections (San Martin and La Cinglera) ranges between -11.4 and -14.3% and averages -12.9%, values that conclusively represent the PETM and for the first time are recorded in sections where the LFT is clearly represented. Further, a high-resolution lithological correlation between Campo and the three new sections across the P-E interval unquestionably demonstrates that the lowermost marine beds with autochthonous specimens of Alveolina vredenburgi (a tell-tale of the LFT) are laterally interfingered -and are therefore coeval- with the nodule-bearing PETM continental deposits. On the basis of the new evidence, the temporal coincidence of the PETM and the LFT can no longer be doubted. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
PETM, Paleocene-Eocene boundary, Larger foraminifera, Isotopes, Campo section
in
Geologica Acta
volume
7
issue
1-2
pages
161 - 175
publisher
Institut de Ciències de la Terra "Jaume Almera" (CSIC)
external identifiers
  • wos:000263906300010
  • scopus:62249139404
ISSN
1695-6133
DOI
10.1344/105.000000276
language
English
LU publication?
yes
id
787d0b91-83d9-4a05-bb5f-853abcf21fc6 (old id 635436)
date added to LUP
2007-12-18 11:15:55
date last changed
2017-09-03 04:05:30
@article{787d0b91-83d9-4a05-bb5f-853abcf21fc6,
  abstract     = {<b>Abstract in Undetermined</b><br/><br>
It has long been known that a major larger foraminifera turnover (LFT) occurred at the boundary between the Thanetian and Ilerdian stages, but its possible correlation with the Paleocene-Eocene thermal maximum (PETM) was unsuspected until the work of Baceta (1996), and has been controversial ever since. After summarizing the history of this controversy, we present information from three new sections that conclusively resolve the issue, all of them placed less than 2 km to the east of the classical Campo section in the southern Pyrenees. In these three sections, an up to 7 meter-thick intercalation of continental deposits rich in pedogenic carbonate nodules is sandwiched between uppermost Thanetian and lowermost Ilerdian shallow marine carbonates. The delta(13)C composition of 42 pedogenic nodules collected from two of these sections (San Martin and La Cinglera) ranges between -11.4 and -14.3% and averages -12.9%, values that conclusively represent the PETM and for the first time are recorded in sections where the LFT is clearly represented. Further, a high-resolution lithological correlation between Campo and the three new sections across the P-E interval unquestionably demonstrates that the lowermost marine beds with autochthonous specimens of Alveolina vredenburgi (a tell-tale of the LFT) are laterally interfingered -and are therefore coeval- with the nodule-bearing PETM continental deposits. On the basis of the new evidence, the temporal coincidence of the PETM and the LFT can no longer be doubted.},
  author       = {Pujalte, V. and Schmitz, Birger and Baceta, J.L. and Orue-Etxebarria, X.},
  issn         = {1695-6133},
  keyword      = {PETM,Paleocene-Eocene boundary,Larger foraminifera,Isotopes,Campo section},
  language     = {eng},
  number       = {1-2},
  pages        = {161--175},
  publisher    = {Institut de Ciències de la Terra "Jaume Almera" (CSIC)},
  series       = {Geologica Acta},
  title        = {Correlation of the Thanetian-Ilerdian turnover of larger foraminifera and the Paleocene-Eocene thermal maximum: confirming evidence from the Campo area (Pyrenees, Spain)},
  url          = {http://dx.doi.org/10.1344/105.000000276},
  volume       = {7},
  year         = {2009},
}