Refinement of the environmental and chronological context of the archeological site El Harhoura 2 (Rabat, Morocco) using paleoclimatic simulations
This study illustrates the strong potential of combining paleoenvironmental reconstructions and paleoclimate modeling to refine the paleoenvironmental and chronological context of archaeological and paleontological sites. We focus on the El Harhoura 2 cave (EH2), an archeological site located on the...
Main Authors: | , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | http://hdl.handle.net/21.11116/0000-000B-C759-1 http://hdl.handle.net/21.11116/0000-000D-8777-5 http://hdl.handle.net/21.11116/0000-000D-8778-4 |
id |
ftpubman:oai:pure.mpg.de:item_3478735 |
---|---|
record_format |
openpolar |
spelling |
ftpubman:oai:pure.mpg.de:item_3478735 2023-08-27T04:11:02+02:00 Refinement of the environmental and chronological context of the archeological site El Harhoura 2 (Rabat, Morocco) using paleoclimatic simulations The use of paleoclimate simulations to refine the environmental and chronological context of archaeological/paleontological sites [title of preprint] Terray, L. Stoetzel, E. Ben Arous, E. Kageyama, M. Cornette, R. Braconnot, P. 2022-11-23 application/pdf http://hdl.handle.net/21.11116/0000-000B-C759-1 http://hdl.handle.net/21.11116/0000-000D-8777-5 http://hdl.handle.net/21.11116/0000-000D-8778-4 eng eng info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-2022-81 http://hdl.handle.net/21.11116/0000-000B-C759-1 http://hdl.handle.net/21.11116/0000-000D-8777-5 http://hdl.handle.net/21.11116/0000-000D-8778-4 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ Climate of the past discussions info:eu-repo/semantics/article 2022 ftpubman https://doi.org/10.5194/cp-2022-81 2023-08-06T23:44:08Z This study illustrates the strong potential of combining paleoenvironmental reconstructions and paleoclimate modeling to refine the paleoenvironmental and chronological context of archaeological and paleontological sites. We focus on the El Harhoura 2 cave (EH2), an archeological site located on the North-Atlantic coast of Morocco that covers a period from the Late Pleistocene to the mid-Holocene. On several stratigraphic layers, inconsistencies are observed between species- and isotope-based inferences used to reconstruct paleoenvironmental conditions. The stratigraphy of EH2 also shows chronological inconsistencies on older layers between age estimated by Optical Stimulated Luminescence (OSL) and Combination of Uranium Series and Electron Spin Resonance methods (combined US-ESR). We performed paleoclimate simulations to infer the global paleoclimate variations over the EH2 sequence in the area, and we conducted a consistency approach between paleoclimate reconstruction estimated from simulations and available from EH2 paleoenvironmental inferences. Our main conclusion show that the climate sequence based on combined US-ESR ages is more consistent with paleoenvironmental inferences than the climate sequence based on OSL ages. We also evidence that isotope-based inferences are more congruent with the paleoclimate sequence than species-based inferences. These results highlight the difference in scale between the information provided by each of these paleoenvironmental proxies. Our approach is transferable to other sites due to the increase number of available paleoclimate simulations. 1 Introduction 2 Material and methods 2.1 El Harhoura 2 cave 2.1.1 Presentation of the site 2.1.2 Chronostratigraphy and dating hypotheses 2.1.3 Paleoenvironmental variables 2.2 Paleoclimate reconstruction 2.2.1 Climate model and experiments 2.2.2 Paleoclimate simulations 2.2.3 Sea surface boundary conditions 2.2.4 A subset of key paleoclimate variables 2.3 Consistency analyses 3 Results 3.1. Simulated climate changes 3.2 ... Article in Journal/Newspaper North Atlantic Max Planck Society: MPG.PuRe |
institution |
Open Polar |
collection |
Max Planck Society: MPG.PuRe |
op_collection_id |
ftpubman |
language |
English |
description |
This study illustrates the strong potential of combining paleoenvironmental reconstructions and paleoclimate modeling to refine the paleoenvironmental and chronological context of archaeological and paleontological sites. We focus on the El Harhoura 2 cave (EH2), an archeological site located on the North-Atlantic coast of Morocco that covers a period from the Late Pleistocene to the mid-Holocene. On several stratigraphic layers, inconsistencies are observed between species- and isotope-based inferences used to reconstruct paleoenvironmental conditions. The stratigraphy of EH2 also shows chronological inconsistencies on older layers between age estimated by Optical Stimulated Luminescence (OSL) and Combination of Uranium Series and Electron Spin Resonance methods (combined US-ESR). We performed paleoclimate simulations to infer the global paleoclimate variations over the EH2 sequence in the area, and we conducted a consistency approach between paleoclimate reconstruction estimated from simulations and available from EH2 paleoenvironmental inferences. Our main conclusion show that the climate sequence based on combined US-ESR ages is more consistent with paleoenvironmental inferences than the climate sequence based on OSL ages. We also evidence that isotope-based inferences are more congruent with the paleoclimate sequence than species-based inferences. These results highlight the difference in scale between the information provided by each of these paleoenvironmental proxies. Our approach is transferable to other sites due to the increase number of available paleoclimate simulations. 1 Introduction 2 Material and methods 2.1 El Harhoura 2 cave 2.1.1 Presentation of the site 2.1.2 Chronostratigraphy and dating hypotheses 2.1.3 Paleoenvironmental variables 2.2 Paleoclimate reconstruction 2.2.1 Climate model and experiments 2.2.2 Paleoclimate simulations 2.2.3 Sea surface boundary conditions 2.2.4 A subset of key paleoclimate variables 2.3 Consistency analyses 3 Results 3.1. Simulated climate changes 3.2 ... |
format |
Article in Journal/Newspaper |
author |
Terray, L. Stoetzel, E. Ben Arous, E. Kageyama, M. Cornette, R. Braconnot, P. |
spellingShingle |
Terray, L. Stoetzel, E. Ben Arous, E. Kageyama, M. Cornette, R. Braconnot, P. Refinement of the environmental and chronological context of the archeological site El Harhoura 2 (Rabat, Morocco) using paleoclimatic simulations |
author_facet |
Terray, L. Stoetzel, E. Ben Arous, E. Kageyama, M. Cornette, R. Braconnot, P. |
author_sort |
Terray, L. |
title |
Refinement of the environmental and chronological context of the archeological site El Harhoura 2 (Rabat, Morocco) using paleoclimatic simulations |
title_short |
Refinement of the environmental and chronological context of the archeological site El Harhoura 2 (Rabat, Morocco) using paleoclimatic simulations |
title_full |
Refinement of the environmental and chronological context of the archeological site El Harhoura 2 (Rabat, Morocco) using paleoclimatic simulations |
title_fullStr |
Refinement of the environmental and chronological context of the archeological site El Harhoura 2 (Rabat, Morocco) using paleoclimatic simulations |
title_full_unstemmed |
Refinement of the environmental and chronological context of the archeological site El Harhoura 2 (Rabat, Morocco) using paleoclimatic simulations |
title_sort |
refinement of the environmental and chronological context of the archeological site el harhoura 2 (rabat, morocco) using paleoclimatic simulations |
publishDate |
2022 |
url |
http://hdl.handle.net/21.11116/0000-000B-C759-1 http://hdl.handle.net/21.11116/0000-000D-8777-5 http://hdl.handle.net/21.11116/0000-000D-8778-4 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Climate of the past discussions |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-2022-81 http://hdl.handle.net/21.11116/0000-000B-C759-1 http://hdl.handle.net/21.11116/0000-000D-8777-5 http://hdl.handle.net/21.11116/0000-000D-8778-4 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.5194/cp-2022-81 |
_version_ |
1775353483089674240 |