Microsedimentological characterization as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina, supplement to: Jouve, Guillaume; Francus, Pierre; Lamoureux, Scott F; Provencher-Nolet, Laurence; Hahn, Annette; Haberzettl, Torsten; Fortin, David; Nuttin, Laurence; PASADO Science Team (2013): Microsedimentological characterization using image analysis and µ-XRF as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina. Quaternary Science Reviews, 71, 191-204
Palaeoclimatic and paleoenvironmental high latitude records in the Southern Hemisphere are scarce compared to the northern counterpart. However, understanding global evolution of environmental systems during sudden climate changes is inseparable from an equivalent knowledge of both Hemispheres. In t...
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ftdatacite:10.1594/pangaea.807438 2023-05-15T13:56:05+02:00 Microsedimentological characterization as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina, supplement to: Jouve, Guillaume; Francus, Pierre; Lamoureux, Scott F; Provencher-Nolet, Laurence; Hahn, Annette; Haberzettl, Torsten; Fortin, David; Nuttin, Laurence; PASADO Science Team (2013): Microsedimentological characterization using image analysis and µ-XRF as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina. Quaternary Science Reviews, 71, 191-204 Jouve, Guillaume Francus, Pierre Lamoureux, Scott F Provencher-Nolet, Laurence Hahn, Annette Haberzettl, Torsten Fortin, David Nuttin, Laurence PASADO Science Team 2012 application/zip https://dx.doi.org/10.1594/pangaea.807438 https://doi.pangaea.de/10.1594/PANGAEA.807438 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/j.quascirev.2012.06.003 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Hydraulic piston corer Potrok Aike Maar Lake Sediment Archive Drilling Project PASADO Collection article Supplementary Collection of Datasets 2012 ftdatacite https://doi.org/10.1594/pangaea.807438 https://doi.org/10.1016/j.quascirev.2012.06.003 2021-11-05T12:55:41Z Palaeoclimatic and paleoenvironmental high latitude records in the Southern Hemisphere are scarce compared to the northern counterpart. However, understanding global evolution of environmental systems during sudden climate changes is inseparable from an equivalent knowledge of both Hemispheres. In this context, a high-resolution study of lacustrine sediments from Laguna Potrok Aike, Santa Cruz province, Patagonia, Argentina, was conducted for the Lateglacial period using concurrent X-Ray Fluorescence (XRF) and Scanning electron microscope analyses. Peaks of Ca/Si and Mn, and occurrences of the green alga Phacotus lenticularis have been interpreted as variations in ventilation of the water column from 13.6 to 11.1 ka cal. BP. During this interval, mild climate conditions during the Younger Dryas are characterized by relatively weak westerlies favouring the formation of a stratified water body as indicated by preserved manganese and Ca/Si peaks and high Total Organic Carbon (TOC) values. In this environment, water in the epilimnion can reach sufficiently high temperature to allow P. lenticularis to grow. Colder conditions are marked by peaks in Ca without P. lenticularis and occur during the Antarctic Cold Reversal (ACR). In this Lateglacial interval, micropumices were also detected in large amount. Image analysis of thin sections allowed the counting and size measurement of detrital particles and micropumices separately. Micropumices significantly influence the iron and titanium content, hence preventing to use them as proxies of detrital input in this interval. Article in Journal/Newspaper Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic Patagonia Argentina Guillaume ENVELOPE(70.150,70.150,-49.350,-49.350) |
institution |
Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Hydraulic piston corer Potrok Aike Maar Lake Sediment Archive Drilling Project PASADO |
spellingShingle |
Hydraulic piston corer Potrok Aike Maar Lake Sediment Archive Drilling Project PASADO Jouve, Guillaume Francus, Pierre Lamoureux, Scott F Provencher-Nolet, Laurence Hahn, Annette Haberzettl, Torsten Fortin, David Nuttin, Laurence PASADO Science Team Microsedimentological characterization as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina, supplement to: Jouve, Guillaume; Francus, Pierre; Lamoureux, Scott F; Provencher-Nolet, Laurence; Hahn, Annette; Haberzettl, Torsten; Fortin, David; Nuttin, Laurence; PASADO Science Team (2013): Microsedimentological characterization using image analysis and µ-XRF as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina. Quaternary Science Reviews, 71, 191-204 |
topic_facet |
Hydraulic piston corer Potrok Aike Maar Lake Sediment Archive Drilling Project PASADO |
description |
Palaeoclimatic and paleoenvironmental high latitude records in the Southern Hemisphere are scarce compared to the northern counterpart. However, understanding global evolution of environmental systems during sudden climate changes is inseparable from an equivalent knowledge of both Hemispheres. In this context, a high-resolution study of lacustrine sediments from Laguna Potrok Aike, Santa Cruz province, Patagonia, Argentina, was conducted for the Lateglacial period using concurrent X-Ray Fluorescence (XRF) and Scanning electron microscope analyses. Peaks of Ca/Si and Mn, and occurrences of the green alga Phacotus lenticularis have been interpreted as variations in ventilation of the water column from 13.6 to 11.1 ka cal. BP. During this interval, mild climate conditions during the Younger Dryas are characterized by relatively weak westerlies favouring the formation of a stratified water body as indicated by preserved manganese and Ca/Si peaks and high Total Organic Carbon (TOC) values. In this environment, water in the epilimnion can reach sufficiently high temperature to allow P. lenticularis to grow. Colder conditions are marked by peaks in Ca without P. lenticularis and occur during the Antarctic Cold Reversal (ACR). In this Lateglacial interval, micropumices were also detected in large amount. Image analysis of thin sections allowed the counting and size measurement of detrital particles and micropumices separately. Micropumices significantly influence the iron and titanium content, hence preventing to use them as proxies of detrital input in this interval. |
format |
Article in Journal/Newspaper |
author |
Jouve, Guillaume Francus, Pierre Lamoureux, Scott F Provencher-Nolet, Laurence Hahn, Annette Haberzettl, Torsten Fortin, David Nuttin, Laurence PASADO Science Team |
author_facet |
Jouve, Guillaume Francus, Pierre Lamoureux, Scott F Provencher-Nolet, Laurence Hahn, Annette Haberzettl, Torsten Fortin, David Nuttin, Laurence PASADO Science Team |
author_sort |
Jouve, Guillaume |
title |
Microsedimentological characterization as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina, supplement to: Jouve, Guillaume; Francus, Pierre; Lamoureux, Scott F; Provencher-Nolet, Laurence; Hahn, Annette; Haberzettl, Torsten; Fortin, David; Nuttin, Laurence; PASADO Science Team (2013): Microsedimentological characterization using image analysis and µ-XRF as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina. Quaternary Science Reviews, 71, 191-204 |
title_short |
Microsedimentological characterization as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina, supplement to: Jouve, Guillaume; Francus, Pierre; Lamoureux, Scott F; Provencher-Nolet, Laurence; Hahn, Annette; Haberzettl, Torsten; Fortin, David; Nuttin, Laurence; PASADO Science Team (2013): Microsedimentological characterization using image analysis and µ-XRF as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina. Quaternary Science Reviews, 71, 191-204 |
title_full |
Microsedimentological characterization as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina, supplement to: Jouve, Guillaume; Francus, Pierre; Lamoureux, Scott F; Provencher-Nolet, Laurence; Hahn, Annette; Haberzettl, Torsten; Fortin, David; Nuttin, Laurence; PASADO Science Team (2013): Microsedimentological characterization using image analysis and µ-XRF as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina. Quaternary Science Reviews, 71, 191-204 |
title_fullStr |
Microsedimentological characterization as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina, supplement to: Jouve, Guillaume; Francus, Pierre; Lamoureux, Scott F; Provencher-Nolet, Laurence; Hahn, Annette; Haberzettl, Torsten; Fortin, David; Nuttin, Laurence; PASADO Science Team (2013): Microsedimentological characterization using image analysis and µ-XRF as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina. Quaternary Science Reviews, 71, 191-204 |
title_full_unstemmed |
Microsedimentological characterization as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina, supplement to: Jouve, Guillaume; Francus, Pierre; Lamoureux, Scott F; Provencher-Nolet, Laurence; Hahn, Annette; Haberzettl, Torsten; Fortin, David; Nuttin, Laurence; PASADO Science Team (2013): Microsedimentological characterization using image analysis and µ-XRF as indicators of sedimentary processes and climate changes during Lateglacial at Laguna Potrok Aike, Santa Cruz, Argentina. Quaternary Science Reviews, 71, 191-204 |
title_sort |
microsedimentological characterization as indicators of sedimentary processes and climate changes during lateglacial at laguna potrok aike, santa cruz, argentina, supplement to: jouve, guillaume; francus, pierre; lamoureux, scott f; provencher-nolet, laurence; hahn, annette; haberzettl, torsten; fortin, david; nuttin, laurence; pasado science team (2013): microsedimentological characterization using image analysis and µ-xrf as indicators of sedimentary processes and climate changes during lateglacial at laguna potrok aike, santa cruz, argentina. quaternary science reviews, 71, 191-204 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2012 |
url |
https://dx.doi.org/10.1594/pangaea.807438 https://doi.pangaea.de/10.1594/PANGAEA.807438 |
long_lat |
ENVELOPE(70.150,70.150,-49.350,-49.350) |
geographic |
Antarctic The Antarctic Patagonia Argentina Guillaume |
geographic_facet |
Antarctic The Antarctic Patagonia Argentina Guillaume |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://dx.doi.org/10.1016/j.quascirev.2012.06.003 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.807438 https://doi.org/10.1016/j.quascirev.2012.06.003 |
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1766263316405026816 |