“Antarctic on fire”: Paleo-wildfire events associated with volcanic deposits in the Antarctic Peninsula during the Late Cretaceous
The occurrence of paleo-wildfire events during the Campanian age of the Late Cretaceous is demonstrated in this study for the first time with deposits from the King George Island, South Shetland Islands, Antarctic Peninsula. With the aim of providing information that fills important paleoenvironment...
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2023
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Online Access: | http://dx.doi.org/10.3389/feart.2023.1048754 https://www.frontiersin.org/articles/10.3389/feart.2023.1048754/full |
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crfrontiers:10.3389/feart.2023.1048754 2024-02-11T09:58:13+01:00 “Antarctic on fire”: Paleo-wildfire events associated with volcanic deposits in the Antarctic Peninsula during the Late Cretaceous Manfroi, Joseline Trevisan, Cristine Dutra, Tânia Lindner Jasper, André Carvalho, Marcelo De Araujo Aquino, Francisco Eliseu Leppe, Marcelo Conselho Nacional de Desenvolvimento Científico e Tecnológico 2023 http://dx.doi.org/10.3389/feart.2023.1048754 https://www.frontiersin.org/articles/10.3389/feart.2023.1048754/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Earth Science volume 11 ISSN 2296-6463 General Earth and Planetary Sciences journal-article 2023 crfrontiers https://doi.org/10.3389/feart.2023.1048754 2024-01-26T09:55:20Z The occurrence of paleo-wildfire events during the Campanian age of the Late Cretaceous is demonstrated in this study for the first time with deposits from the King George Island, South Shetland Islands, Antarctic Peninsula. With the aim of providing information that fills important paleoenvironmental and paleobiogeographic gaps about the end of the Cretaceous for the Gondwana, samples of macroscopic charcoal were collected at two different volcanic levels of the Price Point outcrop, King George Island, during the expeditions to the Antarctic Peninsula by the Brazilian Antarctic Program (PROANTAR). The samples of charcoal were treated and later analyzed under a stereomicroscope and scanning electron microscope. The analysis allowed the identification of morphoanatomical structures with potential taxonomic affinity with Podocarpaceae. These conifers were important in temperate forests of high-latitude environments during the Late Cretaceous, and this is in accordance with previous palaeobotanical records from Price Point. The analysis also showed that southern paleofloras were subject to the occurrence of paleo-wildfires much more frequently than previously thought. This indicates that fire and active volcanism were significant modifiers of the ecological niches of austral floras, because even in distal areas, the source of ignition for forest fires often came from contact with a hot volcanic ash cloud, where the vegetation was either totally or partially consumed by fire. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Brazilian Antarctic Program King George Island South Shetland Islands Frontiers (Publisher) Antarctic Antarctic Peninsula Austral King George Island Price Point ENVELOPE(-115.000,-115.000,62.086,62.086) South Shetland Islands The Antarctic Frontiers in Earth Science 11 |
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Frontiers (Publisher) |
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unknown |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Manfroi, Joseline Trevisan, Cristine Dutra, Tânia Lindner Jasper, André Carvalho, Marcelo De Araujo Aquino, Francisco Eliseu Leppe, Marcelo “Antarctic on fire”: Paleo-wildfire events associated with volcanic deposits in the Antarctic Peninsula during the Late Cretaceous |
topic_facet |
General Earth and Planetary Sciences |
description |
The occurrence of paleo-wildfire events during the Campanian age of the Late Cretaceous is demonstrated in this study for the first time with deposits from the King George Island, South Shetland Islands, Antarctic Peninsula. With the aim of providing information that fills important paleoenvironmental and paleobiogeographic gaps about the end of the Cretaceous for the Gondwana, samples of macroscopic charcoal were collected at two different volcanic levels of the Price Point outcrop, King George Island, during the expeditions to the Antarctic Peninsula by the Brazilian Antarctic Program (PROANTAR). The samples of charcoal were treated and later analyzed under a stereomicroscope and scanning electron microscope. The analysis allowed the identification of morphoanatomical structures with potential taxonomic affinity with Podocarpaceae. These conifers were important in temperate forests of high-latitude environments during the Late Cretaceous, and this is in accordance with previous palaeobotanical records from Price Point. The analysis also showed that southern paleofloras were subject to the occurrence of paleo-wildfires much more frequently than previously thought. This indicates that fire and active volcanism were significant modifiers of the ecological niches of austral floras, because even in distal areas, the source of ignition for forest fires often came from contact with a hot volcanic ash cloud, where the vegetation was either totally or partially consumed by fire. |
author2 |
Conselho Nacional de Desenvolvimento Científico e Tecnológico |
format |
Article in Journal/Newspaper |
author |
Manfroi, Joseline Trevisan, Cristine Dutra, Tânia Lindner Jasper, André Carvalho, Marcelo De Araujo Aquino, Francisco Eliseu Leppe, Marcelo |
author_facet |
Manfroi, Joseline Trevisan, Cristine Dutra, Tânia Lindner Jasper, André Carvalho, Marcelo De Araujo Aquino, Francisco Eliseu Leppe, Marcelo |
author_sort |
Manfroi, Joseline |
title |
“Antarctic on fire”: Paleo-wildfire events associated with volcanic deposits in the Antarctic Peninsula during the Late Cretaceous |
title_short |
“Antarctic on fire”: Paleo-wildfire events associated with volcanic deposits in the Antarctic Peninsula during the Late Cretaceous |
title_full |
“Antarctic on fire”: Paleo-wildfire events associated with volcanic deposits in the Antarctic Peninsula during the Late Cretaceous |
title_fullStr |
“Antarctic on fire”: Paleo-wildfire events associated with volcanic deposits in the Antarctic Peninsula during the Late Cretaceous |
title_full_unstemmed |
“Antarctic on fire”: Paleo-wildfire events associated with volcanic deposits in the Antarctic Peninsula during the Late Cretaceous |
title_sort |
“antarctic on fire”: paleo-wildfire events associated with volcanic deposits in the antarctic peninsula during the late cretaceous |
publisher |
Frontiers Media SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/feart.2023.1048754 https://www.frontiersin.org/articles/10.3389/feart.2023.1048754/full |
long_lat |
ENVELOPE(-115.000,-115.000,62.086,62.086) |
geographic |
Antarctic Antarctic Peninsula Austral King George Island Price Point South Shetland Islands The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Austral King George Island Price Point South Shetland Islands The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Brazilian Antarctic Program King George Island South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Brazilian Antarctic Program King George Island South Shetland Islands |
op_source |
Frontiers in Earth Science volume 11 ISSN 2296-6463 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/feart.2023.1048754 |
container_title |
Frontiers in Earth Science |
container_volume |
11 |
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1790593815955898368 |