Seismic stratigraphy of the late Quaternary sedimentary infill of Lac d'Armor (Kerguelen archipelago): a record of glacier retreat, sedimentary mass wasting and southern Westerly intensification
Abstract Lac d'Armor (49°27′S, 69°42′E) is a medium-sized, fjord-type lake located on the ‘Grande Terre’ island of the Kerguelen archipelago. A dense grid of high-resolution reflection seismic profiles was collected from this lake basin. The seismic stratigraphic facies reveal a last deglaciati...
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Online Access: | http://dx.doi.org/10.1017/s0954102012000466 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102012000466 |
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crcambridgeupr:10.1017/s0954102012000466 2024-03-03T08:39:28+00:00 Seismic stratigraphy of the late Quaternary sedimentary infill of Lac d'Armor (Kerguelen archipelago): a record of glacier retreat, sedimentary mass wasting and southern Westerly intensification Heirman, Katrien De Batist, Marc Arnaud, Fabien De Beaulieu, Jacques-Louis 2012 http://dx.doi.org/10.1017/s0954102012000466 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102012000466 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 24, issue 6, page 608-618 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2012 crcambridgeupr https://doi.org/10.1017/s0954102012000466 2024-02-08T08:45:02Z Abstract Lac d'Armor (49°27′S, 69°42′E) is a medium-sized, fjord-type lake located on the ‘Grande Terre’ island of the Kerguelen archipelago. A dense grid of high-resolution reflection seismic profiles was collected from this lake basin. The seismic stratigraphic facies reveal a last deglaciation to Holocene infill comparable to the seismic facies found in other glacigenic lakes all over the world. Remarkable features in the seismic stratigraphy are mounded structures found at the southern edge of both sub-basins. The sediment mounds can be interpreted as sediment drifts created by wind-induced bottom currents. The onset of the build-up of these drifts initiated at some point in the Holocene and indicates a strengthening of the southern Westerlies, which are currently the dominant winds on this island. Article in Journal/Newspaper Antarctic Science Cambridge University Press Kerguelen Lac d'Armor ENVELOPE(69.707,69.707,-49.459,-49.459) Antarctic Science 24 6 608 618 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Heirman, Katrien De Batist, Marc Arnaud, Fabien De Beaulieu, Jacques-Louis Seismic stratigraphy of the late Quaternary sedimentary infill of Lac d'Armor (Kerguelen archipelago): a record of glacier retreat, sedimentary mass wasting and southern Westerly intensification |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Lac d'Armor (49°27′S, 69°42′E) is a medium-sized, fjord-type lake located on the ‘Grande Terre’ island of the Kerguelen archipelago. A dense grid of high-resolution reflection seismic profiles was collected from this lake basin. The seismic stratigraphic facies reveal a last deglaciation to Holocene infill comparable to the seismic facies found in other glacigenic lakes all over the world. Remarkable features in the seismic stratigraphy are mounded structures found at the southern edge of both sub-basins. The sediment mounds can be interpreted as sediment drifts created by wind-induced bottom currents. The onset of the build-up of these drifts initiated at some point in the Holocene and indicates a strengthening of the southern Westerlies, which are currently the dominant winds on this island. |
format |
Article in Journal/Newspaper |
author |
Heirman, Katrien De Batist, Marc Arnaud, Fabien De Beaulieu, Jacques-Louis |
author_facet |
Heirman, Katrien De Batist, Marc Arnaud, Fabien De Beaulieu, Jacques-Louis |
author_sort |
Heirman, Katrien |
title |
Seismic stratigraphy of the late Quaternary sedimentary infill of Lac d'Armor (Kerguelen archipelago): a record of glacier retreat, sedimentary mass wasting and southern Westerly intensification |
title_short |
Seismic stratigraphy of the late Quaternary sedimentary infill of Lac d'Armor (Kerguelen archipelago): a record of glacier retreat, sedimentary mass wasting and southern Westerly intensification |
title_full |
Seismic stratigraphy of the late Quaternary sedimentary infill of Lac d'Armor (Kerguelen archipelago): a record of glacier retreat, sedimentary mass wasting and southern Westerly intensification |
title_fullStr |
Seismic stratigraphy of the late Quaternary sedimentary infill of Lac d'Armor (Kerguelen archipelago): a record of glacier retreat, sedimentary mass wasting and southern Westerly intensification |
title_full_unstemmed |
Seismic stratigraphy of the late Quaternary sedimentary infill of Lac d'Armor (Kerguelen archipelago): a record of glacier retreat, sedimentary mass wasting and southern Westerly intensification |
title_sort |
seismic stratigraphy of the late quaternary sedimentary infill of lac d'armor (kerguelen archipelago): a record of glacier retreat, sedimentary mass wasting and southern westerly intensification |
publisher |
Cambridge University Press (CUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1017/s0954102012000466 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102012000466 |
long_lat |
ENVELOPE(69.707,69.707,-49.459,-49.459) |
geographic |
Kerguelen Lac d'Armor |
geographic_facet |
Kerguelen Lac d'Armor |
genre |
Antarctic Science |
genre_facet |
Antarctic Science |
op_source |
Antarctic Science volume 24, issue 6, page 608-618 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102012000466 |
container_title |
Antarctic Science |
container_volume |
24 |
container_issue |
6 |
container_start_page |
608 |
op_container_end_page |
618 |
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1792495033315753984 |