Articles | Volume 20, issue 4
https://doi.org/10.5194/cp-20-935-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-20-935-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Apr 2024
Research article |
| 15 Apr 2024
| 15 Apr 2024
Middle Eocene Climatic Optimum (MECO) and its imprint in the continental Escanilla Formation, Spain
Nikhil Sharma
CORRESPONDING AUTHOR
Department of Earth Sciences, University of Geneva, 1205 Geneva, Switzerland
Bureau of Economic Geology, The University of Texas at Austin, Austin, TX 78712, USA
Jorge E. Spangenberg
Institute of Earth Surface Dynamics (IDYST), University of Lausanne, Géopolis, 1015 Lausanne, Switzerland
Thierry Adatte
Institute of Earth Sciences (ISTE), University of Lausanne, Géopolis, 1015 Lausanne, Switzerland
Torsten Vennemann
Institute of Earth Surface Dynamics (IDYST), University of Lausanne, Géopolis, 1015 Lausanne, Switzerland
László Kocsis
Institute of Earth Surface Dynamics (IDYST), University of Lausanne, Géopolis, 1015 Lausanne, Switzerland
Jean Vérité
Department of Earth Sciences, University of Geneva, 1205 Geneva, Switzerland
LPG – Le Mans, UFR Sciences et Techniques, Université du Maine, 72089 Le Mans CEDEX 9, France
Luis Valero
Department of Earth Sciences, University of Geneva, 1205 Geneva, Switzerland
Departament de Dinàmica de la Terra i l’Oceà, Facultat de Ciències de la Terra, 08028 Barcelona, Spain
Sébastien Castelltort
Department of Earth Sciences, University of Geneva, 1205 Geneva, Switzerland
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Related subject area
Subject: Continental Surface Processes | Archive: Terrestrial Archives | Timescale: Cenozoic
Climatic and tectonic controls on shallow marine and freshwater diatomite deposition through the Palaeogene
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Climate and ecology in the Rocky Mountain interior after the early Eocene Climatic Optimum
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A re-evaluation of the palaeoclimatic significance of phosphorus variability in speleothems revealed by high-resolution synchrotron micro XRF mapping
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Global scale compilation of Palaeogene diatomite occurrences reveals the impact of palaeogeographic and palaeoceanographic changes on diatom accumulation, particularly in the middle Eocene: diatomite deposition dropped in epicontinental seas between ~46 and ~43 Ma, while diatoms began to accumulate from ~43.5 Ma in open ocean settings. The compilation also shows the indirect correlation between Palaeogene climate fluctuations & diatomite deposition in shallow marine and freshwater environments.
Sabí Peris Cabré, Luis Valero, Jorge E. Spangenberg, Andreu Vinyoles, Jean Verité, Thierry Adatte, Maxime Tremblin, Stephen Watkins, Nikhil Sharma, Miguel Garcés, Cai Puigdefàbregas, and Sébastien Castelltort
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Andre Baldermann, Oliver Wasser, Elshan Abdullayev, Stefano Bernasconi, Stefan Löhr, Klaus Wemmer, Werner E. Piller, Maxim Rudmin, and Sylvain Richoz
Clim. Past, 17, 1955–1972, https://doi.org/10.5194/cp-17-1955-2021, https://doi.org/10.5194/cp-17-1955-2021, 2021
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We identified the provenance, (post)depositional history, weathering conditions and hydroclimate that formed the detrital and authigenic silicates and soil carbonates of the Valley of Lakes sediments in Central Asia during the Cenozoic (~34 to 21 Ma). Aridification pulses in continental Central Asia coincide with marine glaciation events and are caused by Cenozoic climate forcing and the exhumation of the Tian Shan, Hangay and Altai mountains, which reduced the moisture influx by westerly winds.
Y. X. Li, W. J. Jiao, Z. H. Liu, J. H. Jin, D. H. Wang, Y. X. He, and C. Quan
Clim. Past, 12, 255–272, https://doi.org/10.5194/cp-12-255-2016, https://doi.org/10.5194/cp-12-255-2016, 2016
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An integrated litho-, bio-, cyclo-, and magnetostratigraphy constrains the onset of a depositional environmental change from a lacustrine to a deltaic environment in the Maoming Basin, China, at 33.88 Ma. This coincides with the global cooling during the Eocene-Oligocene transition (EOT) at ~ 33.7–33.9 Ma. This change represents terrestrial responses of low-latitude Asia to the EOT. The greatly refined chronology permits detailed examination of the late Paleogene climate change in southeast Asia.
A. E. Chew
Clim. Past, 11, 1223–1237, https://doi.org/10.5194/cp-11-1223-2015, https://doi.org/10.5194/cp-11-1223-2015, 2015
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This project describes mammal faunal response in the zone of the ETM2 and H2 hyperthermals (rapid global warming events) of the early Paleogene in the south-central Bighorn Basin, WY. The response includes changes in faunal structure and species relative body size. Comparative analysis suggests that environmental moisture and rate of change are important moderators of response.
V. Wennrich, P. S. Minyuk, V. Borkhodoev, A. Francke, B. Ritter, N. R. Nowaczyk, M. A. Sauerbrey, J. Brigham-Grette, and M. Melles
Clim. Past, 10, 1381–1399, https://doi.org/10.5194/cp-10-1381-2014, https://doi.org/10.5194/cp-10-1381-2014, 2014
S. Frisia, A. Borsato, R. N. Drysdale, B. Paul, A. Greig, and M. Cotte
Clim. Past, 8, 2039–2051, https://doi.org/10.5194/cp-8-2039-2012, https://doi.org/10.5194/cp-8-2039-2012, 2012
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Short summary
The Middle Eocene Climatic Optimum (MECO) is an enigmatic global warming event with scarce terrestrial records. To contribute, this study presents a new comprehensive geochemical record of the MECO in the fluvial Escanilla Formation, Spain. In addition to identifying the regional preservation of the MECO, results demonstrate continental sedimentary successions, as key archives of past climate and stable isotopes, to be a powerful tool in correlating difficult-to-date fluvial successions.
The Middle Eocene Climatic Optimum (MECO) is an enigmatic global warming event with scarce...
