Late Holocene Ameghinomya antiqua shells from the Beagle Channel: A multi-proxy approach to palaeoenvironmental and palaeoclimatic reconstruction
It is important to understand the historical precedents of current situations to be able to anticipate where the current global environmental and climatic change may lead. Geo-historical data provide information beyond the limitations of instrumental data. This study aims to reconstruct components o...
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| Format: | info:eu-repo/semantics/article |
| Language: | eng |
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Elsevier Science
2021
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| Online Access: | http://hdl.handle.net/11336/171630 https://suquia.ffyh.unc.edu.ar/handle/suquia/175315 |
| _version_ | 1826515252112523264 |
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| author | Morán, Ariana Gisela Bayer, María Sol Beierlein, Lars Martínez, Juan José Benitez-Vieyra, Santiago Miguel Mackensen, Andreas Brey, Thomas Gordillo, Sandra |
| author_facet | Morán, Ariana Gisela Bayer, María Sol Beierlein, Lars Martínez, Juan José Benitez-Vieyra, Santiago Miguel Mackensen, Andreas Brey, Thomas Gordillo, Sandra |
| author_sort | Morán, Ariana Gisela |
| collection | Repositorio Suquia |
| description | It is important to understand the historical precedents of current situations to be able to anticipate where the current global environmental and climatic change may lead. Geo-historical data provide information beyond the limitations of instrumental data. This study aims to reconstruct components of the palaeoclimatic and palaeoenvironmental history of the Beagle Channel (BC) during the Late Holocene by using Ameghinomya antiqua shells. We use fossil and modern shells in a comparative analysis through a multiproxy approach, i.e., shell morphometrics, shell growth, and stable oxygen isotope ratios. A holistic analysis of all the proxies indicates that higher productivity occurred around 3542 yr B.P. in the BC, evidenced by more significant growth, size, and longevity in fossil specimens. In addition, smaller ligaments, cardinal teeth, and the pallial sinus in fossil specimens indicate a low-energy environment typical of a marine archipelago. Lastly, palaeotemperatures are estimated to be warmer than today, although the intensity may be overestimated due to the freshwater inflow that would change the salinity of the BC waters. Further analysis in Late-Holocene shells is essential for a more detailed environmental reconstruction around the southern tip of South America. |
| format | info:eu-repo/semantics/article |
| id | suquia-ffyh.175315 |
| institution | Universidad Nacional de Cordoba |
| language | eng |
| publishDate | 2021 |
| publisher | Elsevier Science |
| record_format | dspace |
| spelling | suquia-ffyh.1753152024-08-02T01:23:13Z Late Holocene Ameghinomya antiqua shells from the Beagle Channel: A multi-proxy approach to palaeoenvironmental and palaeoclimatic reconstruction Morán, Ariana Gisela Bayer, María Sol Beierlein, Lars Martínez, Juan José Benitez-Vieyra, Santiago Miguel Mackensen, Andreas Brey, Thomas Gordillo, Sandra CLIMATE ARCHIVE OXYGEN ISOTOPES PALAEOTEMPERATURE SHELL GROWTH SHELL SHAPE https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 It is important to understand the historical precedents of current situations to be able to anticipate where the current global environmental and climatic change may lead. Geo-historical data provide information beyond the limitations of instrumental data. This study aims to reconstruct components of the palaeoclimatic and palaeoenvironmental history of the Beagle Channel (BC) during the Late Holocene by using Ameghinomya antiqua shells. We use fossil and modern shells in a comparative analysis through a multiproxy approach, i.e., shell morphometrics, shell growth, and stable oxygen isotope ratios. A holistic analysis of all the proxies indicates that higher productivity occurred around 3542 yr B.P. in the BC, evidenced by more significant growth, size, and longevity in fossil specimens. In addition, smaller ligaments, cardinal teeth, and the pallial sinus in fossil specimens indicate a low-energy environment typical of a marine archipelago. Lastly, palaeotemperatures are estimated to be warmer than today, although the intensity may be overestimated due to the freshwater inflow that would change the salinity of the BC waters. Further analysis in Late-Holocene shells is essential for a more detailed environmental reconstruction around the southern tip of South America. Fil: Morán, Ariana Gisela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina Fil: Bayer, María Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina Fil: Beierlein, Lars. Helmholtz Centre for Polar and Marine Research; Alemania Fil: Martínez, Juan José. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; Argentina Fil: Benitez-Vieyra, Santiago Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Mackensen, Andreas. Helmholtz Centre for Polar and Marine Research; Alemania Fil: Brey, Thomas. Universitat Bremen; Alemania Fil: Gordillo, Sandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Antropología de Córdoba. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Instituto de Antropología de Córdoba; Argentina 2021-09 2024-08-02T01:23:13Z 2024-08-02T01:23:13Z info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://hdl.handle.net/11336/171630 Morán, Ariana Gisela; Bayer, María Sol; Beierlein, Lars; Martínez, Juan José; Benitez-Vieyra, Santiago Miguel; et al.; Late Holocene Ameghinomya antiqua shells from the Beagle Channel: A multi-proxy approach to palaeoenvironmental and palaeoclimatic reconstruction; Elsevier Science; Palaeogeography, Palaeoclimatology, Palaeoecology; 578; 9-2021; 1-13 0031-0182 CONICET Digital CONICET https://suquia.ffyh.unc.edu.ar/handle/suquia/175315 eng info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S003101822100359X info:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2021.110574 info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf Elsevier Science |
| spellingShingle | CLIMATE ARCHIVE OXYGEN ISOTOPES PALAEOTEMPERATURE SHELL GROWTH SHELL SHAPE https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Morán, Ariana Gisela Bayer, María Sol Beierlein, Lars Martínez, Juan José Benitez-Vieyra, Santiago Miguel Mackensen, Andreas Brey, Thomas Gordillo, Sandra Late Holocene Ameghinomya antiqua shells from the Beagle Channel: A multi-proxy approach to palaeoenvironmental and palaeoclimatic reconstruction |
| title | Late Holocene Ameghinomya antiqua shells from the Beagle Channel: A multi-proxy approach to palaeoenvironmental and palaeoclimatic reconstruction |
| title_full | Late Holocene Ameghinomya antiqua shells from the Beagle Channel: A multi-proxy approach to palaeoenvironmental and palaeoclimatic reconstruction |
| title_fullStr | Late Holocene Ameghinomya antiqua shells from the Beagle Channel: A multi-proxy approach to palaeoenvironmental and palaeoclimatic reconstruction |
| title_full_unstemmed | Late Holocene Ameghinomya antiqua shells from the Beagle Channel: A multi-proxy approach to palaeoenvironmental and palaeoclimatic reconstruction |
| title_short | Late Holocene Ameghinomya antiqua shells from the Beagle Channel: A multi-proxy approach to palaeoenvironmental and palaeoclimatic reconstruction |
| title_sort | late holocene ameghinomya antiqua shells from the beagle channel a multi proxy approach to palaeoenvironmental and palaeoclimatic reconstruction |
| topic | CLIMATE ARCHIVE OXYGEN ISOTOPES PALAEOTEMPERATURE SHELL GROWTH SHELL SHAPE https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
| url | http://hdl.handle.net/11336/171630 https://suquia.ffyh.unc.edu.ar/handle/suquia/175315 |
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