14 C chronology and stable isotopes on Lymnaea viatrix shells in northwest Patagonia, Argentina. Do they express the Antarctic climatic reversal?

A multi-isotope environmental record comprising an upper section of the late Pleistocene and the lower and middle Holocene, including isotopic data on 30 samples of peat, marl, tufa, Lymnaea viatrix shells, and Hippidion sp. teeth, is described from a 15 m profile at Arroyo Leuto Caballo, Neuquén Pr...

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Autores principales: Panarello, H.O., Sanci, R., Wassenaar, L.I.
Formato: JOUR
Materias:
Continental carbonates
Modeled 14 C ages
Stable isotopes
Hippidion
Lymnaea viatrix
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_08912556_v34_n1_p133_Panarello
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_08912556_v34_n1_p133_Panarello2023-10-03T15:41:18Z 14 C chronology and stable isotopes on Lymnaea viatrix shells in northwest Patagonia, Argentina. Do they express the Antarctic climatic reversal? Panarello, H.O. Sanci, R. Wassenaar, L.I. Continental carbonates Modeled 14 C ages Stable isotopes Hippidion Lymnaea viatrix A multi-isotope environmental record comprising an upper section of the late Pleistocene and the lower and middle Holocene, including isotopic data on 30 samples of peat, marl, tufa, Lymnaea viatrix shells, and Hippidion sp. teeth, is described from a 15 m profile at Arroyo Leuto Caballo, Neuquén Province, Argentina. The chronology of the Pleistocene sequence was derived from five modeled 14 C ages. δ 18 O of L. viatrix, assumed as a proxy for δ 18 O of meteoric water isotopic composition and thus sensitive to air temperature changes, showed a warming period from 14.03 cal ka BP until ca. 13.90 cal ka BP, followed by a rapid decline in temperature, attaining a minimum between 13.79 and 13.56 cal ka BP and a subsequent warming reestablishment. In addition, a “specular pattern” of δ 13 C of L. viatrix peaking in the same time span would be probably showing aridity. This pattern developed within the globally defined Antarctic Cold Reversal-ACR-time span (from 14.6–2.8 cal ka BP), and prior to the onset of the Huelmo Mascardi Cold Reversal episode, HCMR, from ca 13.30–1.87 cal ka BP. Given the characteristics and the time span covered, it could be related to a continental expression of the ACR event. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_08912556_v34_n1_p133_Panarello
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Continental carbonates
Modeled 14 C ages
Stable isotopes
Hippidion
Lymnaea viatrix
spellingShingle Continental carbonates
Modeled 14 C ages
Stable isotopes
Hippidion
Lymnaea viatrix
Panarello, H.O.
Sanci, R.
Wassenaar, L.I.
14 C chronology and stable isotopes on Lymnaea viatrix shells in northwest Patagonia, Argentina. Do they express the Antarctic climatic reversal?
topic_facet Continental carbonates
Modeled 14 C ages
Stable isotopes
Hippidion
Lymnaea viatrix
description A multi-isotope environmental record comprising an upper section of the late Pleistocene and the lower and middle Holocene, including isotopic data on 30 samples of peat, marl, tufa, Lymnaea viatrix shells, and Hippidion sp. teeth, is described from a 15 m profile at Arroyo Leuto Caballo, Neuquén Province, Argentina. The chronology of the Pleistocene sequence was derived from five modeled 14 C ages. δ 18 O of L. viatrix, assumed as a proxy for δ 18 O of meteoric water isotopic composition and thus sensitive to air temperature changes, showed a warming period from 14.03 cal ka BP until ca. 13.90 cal ka BP, followed by a rapid decline in temperature, attaining a minimum between 13.79 and 13.56 cal ka BP and a subsequent warming reestablishment. In addition, a “specular pattern” of δ 13 C of L. viatrix peaking in the same time span would be probably showing aridity. This pattern developed within the globally defined Antarctic Cold Reversal-ACR-time span (from 14.6–2.8 cal ka BP), and prior to the onset of the Huelmo Mascardi Cold Reversal episode, HCMR, from ca 13.30–1.87 cal ka BP. Given the characteristics and the time span covered, it could be related to a continental expression of the ACR event. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
format JOUR
author Panarello, H.O.
Sanci, R.
Wassenaar, L.I.
author_facet Panarello, H.O.
Sanci, R.
Wassenaar, L.I.
author_sort Panarello, H.O.
title 14 C chronology and stable isotopes on Lymnaea viatrix shells in northwest Patagonia, Argentina. Do they express the Antarctic climatic reversal?
title_short 14 C chronology and stable isotopes on Lymnaea viatrix shells in northwest Patagonia, Argentina. Do they express the Antarctic climatic reversal?
title_full 14 C chronology and stable isotopes on Lymnaea viatrix shells in northwest Patagonia, Argentina. Do they express the Antarctic climatic reversal?
title_fullStr 14 C chronology and stable isotopes on Lymnaea viatrix shells in northwest Patagonia, Argentina. Do they express the Antarctic climatic reversal?
title_full_unstemmed 14 C chronology and stable isotopes on Lymnaea viatrix shells in northwest Patagonia, Argentina. Do they express the Antarctic climatic reversal?
title_sort 14 c chronology and stable isotopes on lymnaea viatrix shells in northwest patagonia, argentina. do they express the antarctic climatic reversal?
url http://hdl.handle.net/20.500.12110/paper_08912556_v34_n1_p133_Panarello
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AT sancir 14cchronologyandstableisotopesonlymnaeaviatrixshellsinnorthwestpatagoniaargentinadotheyexpresstheantarcticclimaticreversal
AT wassenaarli 14cchronologyandstableisotopesonlymnaeaviatrixshellsinnorthwestpatagoniaargentinadotheyexpresstheantarcticclimaticreversal
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