Reconstruction of a Ross lost Cambrian Series 2 mixed siliciclastic–carbonate platform from carbonate clasts of the Shackleton Range, Antarctica
The presence of archaeocyath-bearing clasts from Cenozoic tills and Cambrian Mount Wegener Formation reveal erosion of a hidden Cambrian carbonate platform in Shackleton Range, Antarctica. We provide microfacies, paleontological, diagenetic and tectonically induced fabric data from carbonate clasts...
Published in: | Earth and Environmental Science Transactions of the Royal Society of Edinburgh |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Cambridge University Press
2022
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Online Access: | https://eprints.ucm.es/id/eprint/74053/ https://eprints.ucm.es/id/eprint/74053/1/reconstruction-of-a-ross-lost-cambrian-series-2-mixed-siliciclasticcarbonate-platform-from-carbonate-clasts-of-the-shackleton-range-antarctica.pdf https://doi.org/10.1017/S1755691022000111 |
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ftunivcmadrid:oai:www.ucm.es:74053 2023-05-15T13:45:45+02:00 Reconstruction of a Ross lost Cambrian Series 2 mixed siliciclastic–carbonate platform from carbonate clasts of the Shackleton Range, Antarctica Rodríguez Martínez, Marta Buggisch, Werner Menéndez, Silvia Moreno Eiris, Elena Perejón, Antonio 2022-07-28 application/pdf https://eprints.ucm.es/id/eprint/74053/ https://eprints.ucm.es/id/eprint/74053/1/reconstruction-of-a-ross-lost-cambrian-series-2-mixed-siliciclasticcarbonate-platform-from-carbonate-clasts-of-the-shackleton-range-antarctica.pdf https://doi.org/10.1017/S1755691022000111 en eng Cambridge University Press https://eprints.ucm.es/id/eprint/74053/1/reconstruction-of-a-ross-lost-cambrian-series-2-mixed-siliciclasticcarbonate-platform-from-carbonate-clasts-of-the-shackleton-range-antarctica.pdf cc_by info:eu-repo/semantics/openAccess CC-BY Geodinámica Geología estratigráfica Paleontología Petrología info:eu-repo/semantics/article PeerReviewed 2022 ftunivcmadrid https://doi.org/10.1017/S1755691022000111 2023-02-01T00:08:51Z The presence of archaeocyath-bearing clasts from Cenozoic tills and Cambrian Mount Wegener Formation reveal erosion of a hidden Cambrian carbonate platform in Shackleton Range, Antarctica. We provide microfacies, paleontological, diagenetic and tectonically induced fabric data from carbonate clasts which, in addition to available geochemical and geochronological data from Shackleton Range, allow the paleoenvironmental reconstruction of a lost Cambrian Series 2 mixed siliciclastic–carbonate platform that was developed and eroded during the Ross orogeny. Carbonate production was dominated by non-skeletal grains in possibly restricted platform-interior and oolitic shoal complex settings, while open subtidal sub-environments (calcimicrobe carpets, calcimicrobe–archaeocyath patch reefs, muddy bottoms) were dominated by a diverse calcimicrobe assemblage and/or by secondary to accessory heterozoan assemblage (archaeocyaths and other sponges, chancelloriids, hyoliths, coralomorphs, trilobites, echinoderms). We describe a Botoman assemblage with 34 archaeocyathan species among 12 existing archaeocyathan genera. A new archaeocyath family Shackletoncyathidae is proposed. New species ( Rotundocyathus glacius sp. nov., Buggischicyathus microporus gen. et sp. nov., Paragnaltacyathus hoeflei , Shackletoncyathus buggischi gen. et. sp. nov., Santelmocyathus santelmoi gen. et sp. nov., Wegenercyathus sexangulae gen. et sp. nov.) and Tabulaconus kordae coralomorph are reported from Antarctica for the first time. Archaeocyathan fauna share few species with contemporary fauna of South Australia (9) and even fewer with the Antarctic platforms of the Shackleton Limestone (2) or the Schneider Hills limestone (1). Similarity is greater with Antarctic allochthonous assemblages of Permo-Carboniferous tillites from Ellsworth Mountains (2), Cenozoic deposits from King George Island (4) or Weddell Sea (1). The Shackleton Range lost/hidden platform shows a distinct entity related with its tectonosedimentary evolution, in a possible back-arc ... Article in Journal/Newspaper Antarc* Antarctic Antarctica King George Island Weddell Sea Universidad Complutense de Madrid (UCM): E-Prints Complutense Antarctic Ellsworth Mountains ENVELOPE(-85.000,-85.000,-78.750,-78.750) King George Island Mount Wegener ENVELOPE(-62.263,-62.263,-72.734,-72.734) Schneider Hills ENVELOPE(-42.701,-42.701,-82.571,-82.571) Shackleton Shackleton Range ENVELOPE(-26.000,-26.000,-80.833,-80.833) The Antarctic Weddell Weddell Sea Earth and Environmental Science Transactions of the Royal Society of Edinburgh 1 52 |
institution |
Open Polar |
collection |
Universidad Complutense de Madrid (UCM): E-Prints Complutense |
op_collection_id |
ftunivcmadrid |
language |
English |
topic |
Geodinámica Geología estratigráfica Paleontología Petrología |
spellingShingle |
Geodinámica Geología estratigráfica Paleontología Petrología Rodríguez Martínez, Marta Buggisch, Werner Menéndez, Silvia Moreno Eiris, Elena Perejón, Antonio Reconstruction of a Ross lost Cambrian Series 2 mixed siliciclastic–carbonate platform from carbonate clasts of the Shackleton Range, Antarctica |
topic_facet |
Geodinámica Geología estratigráfica Paleontología Petrología |
description |
The presence of archaeocyath-bearing clasts from Cenozoic tills and Cambrian Mount Wegener Formation reveal erosion of a hidden Cambrian carbonate platform in Shackleton Range, Antarctica. We provide microfacies, paleontological, diagenetic and tectonically induced fabric data from carbonate clasts which, in addition to available geochemical and geochronological data from Shackleton Range, allow the paleoenvironmental reconstruction of a lost Cambrian Series 2 mixed siliciclastic–carbonate platform that was developed and eroded during the Ross orogeny. Carbonate production was dominated by non-skeletal grains in possibly restricted platform-interior and oolitic shoal complex settings, while open subtidal sub-environments (calcimicrobe carpets, calcimicrobe–archaeocyath patch reefs, muddy bottoms) were dominated by a diverse calcimicrobe assemblage and/or by secondary to accessory heterozoan assemblage (archaeocyaths and other sponges, chancelloriids, hyoliths, coralomorphs, trilobites, echinoderms). We describe a Botoman assemblage with 34 archaeocyathan species among 12 existing archaeocyathan genera. A new archaeocyath family Shackletoncyathidae is proposed. New species ( Rotundocyathus glacius sp. nov., Buggischicyathus microporus gen. et sp. nov., Paragnaltacyathus hoeflei , Shackletoncyathus buggischi gen. et. sp. nov., Santelmocyathus santelmoi gen. et sp. nov., Wegenercyathus sexangulae gen. et sp. nov.) and Tabulaconus kordae coralomorph are reported from Antarctica for the first time. Archaeocyathan fauna share few species with contemporary fauna of South Australia (9) and even fewer with the Antarctic platforms of the Shackleton Limestone (2) or the Schneider Hills limestone (1). Similarity is greater with Antarctic allochthonous assemblages of Permo-Carboniferous tillites from Ellsworth Mountains (2), Cenozoic deposits from King George Island (4) or Weddell Sea (1). The Shackleton Range lost/hidden platform shows a distinct entity related with its tectonosedimentary evolution, in a possible back-arc ... |
format |
Article in Journal/Newspaper |
author |
Rodríguez Martínez, Marta Buggisch, Werner Menéndez, Silvia Moreno Eiris, Elena Perejón, Antonio |
author_facet |
Rodríguez Martínez, Marta Buggisch, Werner Menéndez, Silvia Moreno Eiris, Elena Perejón, Antonio |
author_sort |
Rodríguez Martínez, Marta |
title |
Reconstruction of a Ross lost Cambrian Series 2 mixed siliciclastic–carbonate platform from carbonate clasts of the Shackleton Range, Antarctica |
title_short |
Reconstruction of a Ross lost Cambrian Series 2 mixed siliciclastic–carbonate platform from carbonate clasts of the Shackleton Range, Antarctica |
title_full |
Reconstruction of a Ross lost Cambrian Series 2 mixed siliciclastic–carbonate platform from carbonate clasts of the Shackleton Range, Antarctica |
title_fullStr |
Reconstruction of a Ross lost Cambrian Series 2 mixed siliciclastic–carbonate platform from carbonate clasts of the Shackleton Range, Antarctica |
title_full_unstemmed |
Reconstruction of a Ross lost Cambrian Series 2 mixed siliciclastic–carbonate platform from carbonate clasts of the Shackleton Range, Antarctica |
title_sort |
reconstruction of a ross lost cambrian series 2 mixed siliciclastic–carbonate platform from carbonate clasts of the shackleton range, antarctica |
publisher |
Cambridge University Press |
publishDate |
2022 |
url |
https://eprints.ucm.es/id/eprint/74053/ https://eprints.ucm.es/id/eprint/74053/1/reconstruction-of-a-ross-lost-cambrian-series-2-mixed-siliciclasticcarbonate-platform-from-carbonate-clasts-of-the-shackleton-range-antarctica.pdf https://doi.org/10.1017/S1755691022000111 |
long_lat |
ENVELOPE(-85.000,-85.000,-78.750,-78.750) ENVELOPE(-62.263,-62.263,-72.734,-72.734) ENVELOPE(-42.701,-42.701,-82.571,-82.571) ENVELOPE(-26.000,-26.000,-80.833,-80.833) |
geographic |
Antarctic Ellsworth Mountains King George Island Mount Wegener Schneider Hills Shackleton Shackleton Range The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Ellsworth Mountains King George Island Mount Wegener Schneider Hills Shackleton Shackleton Range The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica King George Island Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica King George Island Weddell Sea |
op_relation |
https://eprints.ucm.es/id/eprint/74053/1/reconstruction-of-a-ross-lost-cambrian-series-2-mixed-siliciclasticcarbonate-platform-from-carbonate-clasts-of-the-shackleton-range-antarctica.pdf |
op_rights |
cc_by info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1017/S1755691022000111 |
container_title |
Earth and Environmental Science Transactions of the Royal Society of Edinburgh |
container_start_page |
1 |
op_container_end_page |
52 |
_version_ |
1766230544472866816 |