The bivalve Glycymeris planicostalis as a high-resolution paleoclimate archive for the Rupelian (Early Oligocene) of central Europe

Current global warming is likely to result in a unipolar glaciated world with unpredictable repercussions on atmospheric and oceanic circulation patterns. These changes are expected to affect seasonal extremes and the year-to-year variability of seasonality. To better constrain the mode and tempo of...

Full description

Bibliographic Details
Published in:Climate of the Past
Main Authors: Walliser, E. O., Schöne, B. R., Tütken, T., Zirkel, J., Grimm, K. I., Pross, J.
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2018
Subjects:
geo
Online Access:https://doi.org/10.5194/cp-11-653-2015
https://cp.copernicus.org/articles/11/653/2015/
id fttriple:oai:gotriple.eu:sC_ov8k1_1n7XqzzLUOMw
record_format openpolar
spelling fttriple:oai:gotriple.eu:sC_ov8k1_1n7XqzzLUOMw 2023-05-15T18:01:02+02:00 The bivalve Glycymeris planicostalis as a high-resolution paleoclimate archive for the Rupelian (Early Oligocene) of central Europe Walliser, E. O. Schöne, B. R. Tütken, T. Zirkel, J. Grimm, K. I. Pross, J. 2018-09-27 https://doi.org/10.5194/cp-11-653-2015 https://cp.copernicus.org/articles/11/653/2015/ en eng Copernicus Publications doi:10.5194/cp-11-653-2015 10670/1.epili8 1814-9324 1814-9332 https://cp.copernicus.org/articles/11/653/2015/ undefined Geographica Helvetica - geography eISSN: 1814-9332 envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.5194/cp-11-653-2015 2023-01-22T17:52:21Z Current global warming is likely to result in a unipolar glaciated world with unpredictable repercussions on atmospheric and oceanic circulation patterns. These changes are expected to affect seasonal extremes and the year-to-year variability of seasonality. To better constrain the mode and tempo of the anticipated changes, climatologists require ultra-high-resolution proxy data of time intervals in the past, e.g., the Oligocene, during which boundary conditions were similar to those predicted for the near future. In the present paper, we assess whether such information can be obtained from shells of the long-lived bivalve mollusk Glycymeris planicostalis from the late Rupelian of the Mainz Basin, Germany. Our results indicate that the studied shells are pristinely preserved and provide an excellent archive for reconstructing changes of sea surface temperature on seasonal to interannual timescales. Shells of G. planicostalis grew uninterruptedly during winter and summer and therefore recorded the full seasonal temperature amplitude that prevailed in the Mainz Basin ~ 30 Ma. Absolute sea surface temperature data were reconstructed from δ18Oshell values assuming a δ18Owater signature that was extrapolated from coeval sirenian tooth enamel. Reconstructed values range between 12.3 and 22.0 °C and agree well with previous estimates based on planktonic foraminifera and shark teeth. However, temperatures during seasonal extremes vary greatly on interannual timescales. Mathematically re-sampled (i.e., corrected for uneven number of samples per annual increment) winter and summer temperatures averaged over 40 annual increments of three specimens equal 13.6 ± 0.8 and 17.3 ± 1.2 °C, respectively. Such high-resolution paleoclimate information can be highly relevant for numerical climate studies aiming to predict possible future climates in a unipolar glaciated or, ultimately, polar-ice-free world. Article in Journal/Newspaper Planktonic foraminifera Unknown Climate of the Past 11 4 653 668
institution Open Polar
collection Unknown
op_collection_id fttriple
language English
topic envir
geo
spellingShingle envir
geo
Walliser, E. O.
Schöne, B. R.
Tütken, T.
Zirkel, J.
Grimm, K. I.
Pross, J.
The bivalve Glycymeris planicostalis as a high-resolution paleoclimate archive for the Rupelian (Early Oligocene) of central Europe
topic_facet envir
geo
description Current global warming is likely to result in a unipolar glaciated world with unpredictable repercussions on atmospheric and oceanic circulation patterns. These changes are expected to affect seasonal extremes and the year-to-year variability of seasonality. To better constrain the mode and tempo of the anticipated changes, climatologists require ultra-high-resolution proxy data of time intervals in the past, e.g., the Oligocene, during which boundary conditions were similar to those predicted for the near future. In the present paper, we assess whether such information can be obtained from shells of the long-lived bivalve mollusk Glycymeris planicostalis from the late Rupelian of the Mainz Basin, Germany. Our results indicate that the studied shells are pristinely preserved and provide an excellent archive for reconstructing changes of sea surface temperature on seasonal to interannual timescales. Shells of G. planicostalis grew uninterruptedly during winter and summer and therefore recorded the full seasonal temperature amplitude that prevailed in the Mainz Basin ~ 30 Ma. Absolute sea surface temperature data were reconstructed from δ18Oshell values assuming a δ18Owater signature that was extrapolated from coeval sirenian tooth enamel. Reconstructed values range between 12.3 and 22.0 °C and agree well with previous estimates based on planktonic foraminifera and shark teeth. However, temperatures during seasonal extremes vary greatly on interannual timescales. Mathematically re-sampled (i.e., corrected for uneven number of samples per annual increment) winter and summer temperatures averaged over 40 annual increments of three specimens equal 13.6 ± 0.8 and 17.3 ± 1.2 °C, respectively. Such high-resolution paleoclimate information can be highly relevant for numerical climate studies aiming to predict possible future climates in a unipolar glaciated or, ultimately, polar-ice-free world.
format Article in Journal/Newspaper
author Walliser, E. O.
Schöne, B. R.
Tütken, T.
Zirkel, J.
Grimm, K. I.
Pross, J.
author_facet Walliser, E. O.
Schöne, B. R.
Tütken, T.
Zirkel, J.
Grimm, K. I.
Pross, J.
author_sort Walliser, E. O.
title The bivalve Glycymeris planicostalis as a high-resolution paleoclimate archive for the Rupelian (Early Oligocene) of central Europe
title_short The bivalve Glycymeris planicostalis as a high-resolution paleoclimate archive for the Rupelian (Early Oligocene) of central Europe
title_full The bivalve Glycymeris planicostalis as a high-resolution paleoclimate archive for the Rupelian (Early Oligocene) of central Europe
title_fullStr The bivalve Glycymeris planicostalis as a high-resolution paleoclimate archive for the Rupelian (Early Oligocene) of central Europe
title_full_unstemmed The bivalve Glycymeris planicostalis as a high-resolution paleoclimate archive for the Rupelian (Early Oligocene) of central Europe
title_sort bivalve glycymeris planicostalis as a high-resolution paleoclimate archive for the rupelian (early oligocene) of central europe
publisher Copernicus Publications
publishDate 2018
url https://doi.org/10.5194/cp-11-653-2015
https://cp.copernicus.org/articles/11/653/2015/
genre Planktonic foraminifera
genre_facet Planktonic foraminifera
op_source Geographica Helvetica - geography
eISSN: 1814-9332
op_relation doi:10.5194/cp-11-653-2015
10670/1.epili8
1814-9324
1814-9332
https://cp.copernicus.org/articles/11/653/2015/
op_rights undefined
op_doi https://doi.org/10.5194/cp-11-653-2015
container_title Climate of the Past
container_volume 11
container_issue 4
container_start_page 653
op_container_end_page 668
_version_ 1766170344687665152