Constraining the age of superimposed glacial records in mountain environments with multiple dating methods (Cantabrian Mountains, Iberian Peninsula)
Numerous cases of timing differences between glacier advances recorded in mountain environments have been documented over the last decade, usually suggesting potential age conflicts between the different dating techniques. The frequent use of a single technique to date numerically a given glacial se...
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ftird:oai:ird.fr:fdi:010073805 2024-09-15T18:23:52+00:00 Constraining the age of superimposed glacial records in mountain environments with multiple dating methods (Cantabrian Mountains, Iberian Peninsula) Rodriguez-Rodriguez, L. Dominguez-Cuesta, M. J. Rinterknecht, V. Jimenez-Sanchez, M. Gonzalez-Lemos, S. /Leanni, Laetitia Sanjurjo, J. Ballesteros, D. Valenzuela, P. Llana-Funez, S. ASTER Team ESPAGNE ATLANTIQUE 2018 https://www.documentation.ird.fr/hor/fdi:010073805 EN eng https://www.documentation.ird.fr/hor/fdi:010073805 oai:ird.fr:fdi:010073805 Rodriguez-Rodriguez L., Dominguez-Cuesta M. J., Rinterknecht V., Jimenez-Sanchez M., Gonzalez-Lemos S., Leanni Laetitia, Sanjurjo J., Ballesteros D., Valenzuela P., Llana-Funez S., ASTER Team. Constraining the age of superimposed glacial records in mountain environments with multiple dating methods (Cantabrian Mountains, Iberian Peninsula). 2018, 195, p. 215-231 Be-10 surface exposure dating Radiocarbon Optically stimulated luminescence Last glacial maximum Cantabrian mountains Iberian peninsula Glaciation text 2018 ftird 2024-08-15T05:57:41Z Numerous cases of timing differences between glacier advances recorded in mountain environments have been documented over the last decade, usually suggesting potential age conflicts between the different dating techniques. The frequent use of a single technique to date numerically a given glacial sequence makes it difficult to address to what extent age differences can be an artifact related to biased numerical age results or a paleoclimate signature. Here we present a new set of 43 numerical ages based on three dating techniques -Be-10 surface exposure dating; radiocarbon; and optically stimulated luminescence-that complement the chronology of Pleistocene glacial advances in the Porma valley, in the central Cantabrian Mountains of Spain. Results compliment previous chronologies in the area, supporting an important glacial advance during Marine Isotope Stage 3 (Stage Ila: similar to 56 ka) that culminated with the Last Glacial Maximum advance (Stage llb: similar to 33-24 ka) of MIS 2 in response to increased rainfall and solar insolation minima. Glacier fronts reached elevations as low as 1130 m a.s.l. possibly without overriding evidence related to the previous Pleistocene glacial maximum extent. Glacier recession in the Cantabrian Mountains started at 21-20 ka ago, after the global LGM. We suggest that the recession was initiated by increased insolation followed by hyper-cool and dry conditions during Heinrich Stadial 1 in response to meltwater discharges in the North Atlantic. Text North Atlantic IRD (Institute de recherche pour le développement): Horizon |
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Open Polar |
collection |
IRD (Institute de recherche pour le développement): Horizon |
op_collection_id |
ftird |
language |
English |
topic |
Be-10 surface exposure dating Radiocarbon Optically stimulated luminescence Last glacial maximum Cantabrian mountains Iberian peninsula Glaciation |
spellingShingle |
Be-10 surface exposure dating Radiocarbon Optically stimulated luminescence Last glacial maximum Cantabrian mountains Iberian peninsula Glaciation Rodriguez-Rodriguez, L. Dominguez-Cuesta, M. J. Rinterknecht, V. Jimenez-Sanchez, M. Gonzalez-Lemos, S. /Leanni, Laetitia Sanjurjo, J. Ballesteros, D. Valenzuela, P. Llana-Funez, S. ASTER Team Constraining the age of superimposed glacial records in mountain environments with multiple dating methods (Cantabrian Mountains, Iberian Peninsula) |
topic_facet |
Be-10 surface exposure dating Radiocarbon Optically stimulated luminescence Last glacial maximum Cantabrian mountains Iberian peninsula Glaciation |
description |
Numerous cases of timing differences between glacier advances recorded in mountain environments have been documented over the last decade, usually suggesting potential age conflicts between the different dating techniques. The frequent use of a single technique to date numerically a given glacial sequence makes it difficult to address to what extent age differences can be an artifact related to biased numerical age results or a paleoclimate signature. Here we present a new set of 43 numerical ages based on three dating techniques -Be-10 surface exposure dating; radiocarbon; and optically stimulated luminescence-that complement the chronology of Pleistocene glacial advances in the Porma valley, in the central Cantabrian Mountains of Spain. Results compliment previous chronologies in the area, supporting an important glacial advance during Marine Isotope Stage 3 (Stage Ila: similar to 56 ka) that culminated with the Last Glacial Maximum advance (Stage llb: similar to 33-24 ka) of MIS 2 in response to increased rainfall and solar insolation minima. Glacier fronts reached elevations as low as 1130 m a.s.l. possibly without overriding evidence related to the previous Pleistocene glacial maximum extent. Glacier recession in the Cantabrian Mountains started at 21-20 ka ago, after the global LGM. We suggest that the recession was initiated by increased insolation followed by hyper-cool and dry conditions during Heinrich Stadial 1 in response to meltwater discharges in the North Atlantic. |
format |
Text |
author |
Rodriguez-Rodriguez, L. Dominguez-Cuesta, M. J. Rinterknecht, V. Jimenez-Sanchez, M. Gonzalez-Lemos, S. /Leanni, Laetitia Sanjurjo, J. Ballesteros, D. Valenzuela, P. Llana-Funez, S. ASTER Team |
author_facet |
Rodriguez-Rodriguez, L. Dominguez-Cuesta, M. J. Rinterknecht, V. Jimenez-Sanchez, M. Gonzalez-Lemos, S. /Leanni, Laetitia Sanjurjo, J. Ballesteros, D. Valenzuela, P. Llana-Funez, S. ASTER Team |
author_sort |
Rodriguez-Rodriguez, L. |
title |
Constraining the age of superimposed glacial records in mountain environments with multiple dating methods (Cantabrian Mountains, Iberian Peninsula) |
title_short |
Constraining the age of superimposed glacial records in mountain environments with multiple dating methods (Cantabrian Mountains, Iberian Peninsula) |
title_full |
Constraining the age of superimposed glacial records in mountain environments with multiple dating methods (Cantabrian Mountains, Iberian Peninsula) |
title_fullStr |
Constraining the age of superimposed glacial records in mountain environments with multiple dating methods (Cantabrian Mountains, Iberian Peninsula) |
title_full_unstemmed |
Constraining the age of superimposed glacial records in mountain environments with multiple dating methods (Cantabrian Mountains, Iberian Peninsula) |
title_sort |
constraining the age of superimposed glacial records in mountain environments with multiple dating methods (cantabrian mountains, iberian peninsula) |
publishDate |
2018 |
url |
https://www.documentation.ird.fr/hor/fdi:010073805 |
op_coverage |
ESPAGNE ATLANTIQUE |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://www.documentation.ird.fr/hor/fdi:010073805 oai:ird.fr:fdi:010073805 Rodriguez-Rodriguez L., Dominguez-Cuesta M. J., Rinterknecht V., Jimenez-Sanchez M., Gonzalez-Lemos S., Leanni Laetitia, Sanjurjo J., Ballesteros D., Valenzuela P., Llana-Funez S., ASTER Team. Constraining the age of superimposed glacial records in mountain environments with multiple dating methods (Cantabrian Mountains, Iberian Peninsula). 2018, 195, p. 215-231 |
_version_ |
1810464143494348800 |