First rocks sampled in Antarctica (1840): Insights into the landing area and the Terre Adélie craton
Abstract In January 1840, Dumont d'Urville's expedition landed along the coast of "Terre Adelie" and took three rock specimens, the first ever sampled on the Antarctic continent. The petrological and geochemical study of these samples, stored at the "Museum national d'h...
Published in: | Comptes Rendus Geoscience |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2017
|
Subjects: | |
Online Access: | https://www.openaccessrepository.it/record/83723 https://doi.org/10.1016/j.crte.2016.12.001 |
id |
ftopenaccessrep:oai:zenodo.org:83723 |
---|---|
record_format |
openpolar |
spelling |
ftopenaccessrep:oai:zenodo.org:83723 2023-10-25T01:28:07+02:00 First rocks sampled in Antarctica (1840): Insights into the landing area and the Terre Adélie craton Julien Reynes Jérôme Bascou René-Pierre Ménot Rosaria Palmeri Gaston Godard 2017-01-01 https://www.openaccessrepository.it/record/83723 https://doi.org/10.1016/j.crte.2016.12.001 eng eng url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/83723 doi:10.1016/j.crte.2016.12.001 info:eu-repo/semantics/openAccess NEANIAS Atmospheric Research Community General Earth and Planetary Sciences Global and Planetary Change info:eu-repo/semantics/article publication-article 2017 ftopenaccessrep https://doi.org/10.1016/j.crte.2016.12.001 2023-09-26T22:21:22Z Abstract In January 1840, Dumont d'Urville's expedition landed along the coast of "Terre Adelie" and took three rock specimens, the first ever sampled on the Antarctic continent. The petrological and geochemical study of these samples, stored at the "Museum national d'histoire naturelle", in Paris, characterizes them as migmatitic cordierite + microcline-bearing paragneiss and mesocratic quartz + biotite-bearing amphibolite. The paragneiss reached 670 °C at 3.2 kbar, suggesting an abnormal high- T gradient of ca. 60 °C/km during the regional metamorphism that affected the "Terre Adelie" craton 1.7 Ga ago. The studied samples are identical to the rocks observed at the "Rocher du Debarquement", confirming that this was the actual landing place. On the other hand, quartz diorite and volcanic rocks reportedly sampled in Adelie Land during the same expedition and stored at Le Mans and Toulouse Museums do not originate from Antarctica. The examination of Dumont d'Urville's map suggests an icecap shrinking by 9 km in the landing area since 1840. Article in Journal/Newspaper Adelie Land Antarc* Antarctic Antarctica Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository Antarctic Terre Adélie ENVELOPE(139.000,139.000,-67.000,-67.000) Terre-Adélie ENVELOPE(138.991,138.991,-59.999,-59.999) The Antarctic The Landing ENVELOPE(-45.689,-45.689,-60.733,-60.733) Comptes Rendus Geoscience 349 1 12 21 |
institution |
Open Polar |
collection |
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
op_collection_id |
ftopenaccessrep |
language |
English |
topic |
NEANIAS Atmospheric Research Community General Earth and Planetary Sciences Global and Planetary Change |
spellingShingle |
NEANIAS Atmospheric Research Community General Earth and Planetary Sciences Global and Planetary Change Julien Reynes Jérôme Bascou René-Pierre Ménot Rosaria Palmeri Gaston Godard First rocks sampled in Antarctica (1840): Insights into the landing area and the Terre Adélie craton |
topic_facet |
NEANIAS Atmospheric Research Community General Earth and Planetary Sciences Global and Planetary Change |
description |
Abstract In January 1840, Dumont d'Urville's expedition landed along the coast of "Terre Adelie" and took three rock specimens, the first ever sampled on the Antarctic continent. The petrological and geochemical study of these samples, stored at the "Museum national d'histoire naturelle", in Paris, characterizes them as migmatitic cordierite + microcline-bearing paragneiss and mesocratic quartz + biotite-bearing amphibolite. The paragneiss reached 670 °C at 3.2 kbar, suggesting an abnormal high- T gradient of ca. 60 °C/km during the regional metamorphism that affected the "Terre Adelie" craton 1.7 Ga ago. The studied samples are identical to the rocks observed at the "Rocher du Debarquement", confirming that this was the actual landing place. On the other hand, quartz diorite and volcanic rocks reportedly sampled in Adelie Land during the same expedition and stored at Le Mans and Toulouse Museums do not originate from Antarctica. The examination of Dumont d'Urville's map suggests an icecap shrinking by 9 km in the landing area since 1840. |
format |
Article in Journal/Newspaper |
author |
Julien Reynes Jérôme Bascou René-Pierre Ménot Rosaria Palmeri Gaston Godard |
author_facet |
Julien Reynes Jérôme Bascou René-Pierre Ménot Rosaria Palmeri Gaston Godard |
author_sort |
Julien Reynes |
title |
First rocks sampled in Antarctica (1840): Insights into the landing area and the Terre Adélie craton |
title_short |
First rocks sampled in Antarctica (1840): Insights into the landing area and the Terre Adélie craton |
title_full |
First rocks sampled in Antarctica (1840): Insights into the landing area and the Terre Adélie craton |
title_fullStr |
First rocks sampled in Antarctica (1840): Insights into the landing area and the Terre Adélie craton |
title_full_unstemmed |
First rocks sampled in Antarctica (1840): Insights into the landing area and the Terre Adélie craton |
title_sort |
first rocks sampled in antarctica (1840): insights into the landing area and the terre adélie craton |
publishDate |
2017 |
url |
https://www.openaccessrepository.it/record/83723 https://doi.org/10.1016/j.crte.2016.12.001 |
long_lat |
ENVELOPE(139.000,139.000,-67.000,-67.000) ENVELOPE(138.991,138.991,-59.999,-59.999) ENVELOPE(-45.689,-45.689,-60.733,-60.733) |
geographic |
Antarctic Terre Adélie Terre-Adélie The Antarctic The Landing |
geographic_facet |
Antarctic Terre Adélie Terre-Adélie The Antarctic The Landing |
genre |
Adelie Land Antarc* Antarctic Antarctica |
genre_facet |
Adelie Land Antarc* Antarctic Antarctica |
op_relation |
url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/83723 doi:10.1016/j.crte.2016.12.001 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.crte.2016.12.001 |
container_title |
Comptes Rendus Geoscience |
container_volume |
349 |
container_issue |
1 |
container_start_page |
12 |
op_container_end_page |
21 |
_version_ |
1780731356071854080 |