Is there an active hydrothermal flux from the Orca seamount in the Bransfield Strait, Antarctica?
The rifting zone of Bransfield Strait, Antarctica, is tectonically and geologically unique. It is a back-arc basin that was opened by extensional forces associated to roll-back subduction after cessation of spreading activity of the Phoenix Ridge, and the transtension of the westward ending of Scoti...
Published in: | Andean Geology |
---|---|
Main Authors: | , , , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2018
|
Subjects: | |
Online Access: | https://hal.sorbonne-universite.fr/hal-01958159 https://hal.sorbonne-universite.fr/hal-01958159/document https://hal.sorbonne-universite.fr/hal-01958159/file/3086-11559-1-PB_sans%20marque.pdf https://doi.org/10.5027/andgeoV45n3-3086 |
id |
ftccsdartic:oai:HAL:hal-01958159v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Hydrothermal Helium isotope Thermophiles Seamount Volcanism Rift system Isótopo de helio Monte submarino Volcanismo Termófilos Antarctica Palabras clave: Hidrotermal Sistema de rift Antártica [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
Hydrothermal Helium isotope Thermophiles Seamount Volcanism Rift system Isótopo de helio Monte submarino Volcanismo Termófilos Antarctica Palabras clave: Hidrotermal Sistema de rift Antártica [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Rodrigo, Cristian Blamey, Jenny, Huhn, Oliver Provost, Christine Is there an active hydrothermal flux from the Orca seamount in the Bransfield Strait, Antarctica? |
topic_facet |
Hydrothermal Helium isotope Thermophiles Seamount Volcanism Rift system Isótopo de helio Monte submarino Volcanismo Termófilos Antarctica Palabras clave: Hidrotermal Sistema de rift Antártica [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
The rifting zone of Bransfield Strait, Antarctica, is tectonically and geologically unique. It is a back-arc basin that was opened by extensional forces associated to roll-back subduction after cessation of spreading activity of the Phoenix Ridge, and the transtension of the westward ending of Scotia-Antarctica Plate boundary. The Bransfield Rift/ Ridge is still active generating volcanism or magma rise to force hydrothermal activity. During the ANT-XXV/4 cruise onboard R/V "Polarstern", standard CTD and beam transmission measurements were done to determine temperature anomaly and turbidity. Water sampling was performed to determine δ 3 He and to find thermophilic microorganisms to examine the Orca seamount hydrothermal activity. A temperature anomaly of ~0.08 °C, a pick of turbidity, and high value of δ 3 He (>10%) were found inside Orca seamount. Results are consistent with a hydrothermal flux coming from the seamount. The report of the first observation of thermophilic and hyperthermophilic microorganisms in cold deep Antarctic waters is part of this study. Inside Orca seamount these microorganisms were found at three different depth levels close to the bottom. We suggest that the fluid migration from the volcano resulted from recent magmatic activity and provided the required elemental nutrients for microbial growth. Besides some thermophiles were found outside the seamount in a small quantity close to the seafloor. These would probably be related to subsidiary structures of the Orca seamount, or were transported by currents from other active volcanic sites as Deception Island. The finding of these thermophilic and hyperthermophilic microorganisms raise questions about the dispersal and their resistance in these extreme environments. ¿Existe un flujo hidrotermal activo desde el monte submarino Orca en el estrecho Bransfield, Antártica?. La zona de rifting del estrecho Bransfield, Antártica, es tectónica y geológicamente única. Es una cuenca de trasarco originada por fuerzas de extensión asociadas a ... |
author2 |
Universidad Andrés Bello - UNAB (CHILE) Institut für Umweltphysik Bremen (IUP) Universität Bremen Austral, Boréal et Carbone (ABC) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU) |
format |
Article in Journal/Newspaper |
author |
Rodrigo, Cristian Blamey, Jenny, Huhn, Oliver Provost, Christine |
author_facet |
Rodrigo, Cristian Blamey, Jenny, Huhn, Oliver Provost, Christine |
author_sort |
Rodrigo, Cristian |
title |
Is there an active hydrothermal flux from the Orca seamount in the Bransfield Strait, Antarctica? |
title_short |
Is there an active hydrothermal flux from the Orca seamount in the Bransfield Strait, Antarctica? |
title_full |
Is there an active hydrothermal flux from the Orca seamount in the Bransfield Strait, Antarctica? |
title_fullStr |
Is there an active hydrothermal flux from the Orca seamount in the Bransfield Strait, Antarctica? |
title_full_unstemmed |
Is there an active hydrothermal flux from the Orca seamount in the Bransfield Strait, Antarctica? |
title_sort |
is there an active hydrothermal flux from the orca seamount in the bransfield strait, antarctica? |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.sorbonne-universite.fr/hal-01958159 https://hal.sorbonne-universite.fr/hal-01958159/document https://hal.sorbonne-universite.fr/hal-01958159/file/3086-11559-1-PB_sans%20marque.pdf https://doi.org/10.5027/andgeoV45n3-3086 |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(-60.783,-60.783,-62.467,-62.467) ENVELOPE(-54.000,-54.000,-61.500,-61.500) ENVELOPE(-58.400,-58.400,-62.433,-62.433) |
geographic |
Antarctic Bransfield Strait Deception Island Estrecho Estrecho Bransfield Orca Seamount |
geographic_facet |
Antarctic Bransfield Strait Deception Island Estrecho Estrecho Bransfield Orca Seamount |
genre |
Antarc* Antarctic Antarctica Antártica Bransfield Strait Deception Island Orca |
genre_facet |
Antarc* Antarctic Antarctica Antártica Bransfield Strait Deception Island Orca |
op_source |
ISSN: 0718-7092 EISSN: 0718-7106 Andean geology https://hal.sorbonne-universite.fr/hal-01958159 Andean geology, Servicio Nacional de Geologia y Mineria, 2018, 45 (3), pp.344. ⟨10.5027/andgeoV45n3-3086⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5027/andgeoV45n3-3086 hal-01958159 https://hal.sorbonne-universite.fr/hal-01958159 https://hal.sorbonne-universite.fr/hal-01958159/document https://hal.sorbonne-universite.fr/hal-01958159/file/3086-11559-1-PB_sans%20marque.pdf doi:10.5027/andgeoV45n3-3086 WOS: 000449464900003 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5027/andgeoV45n3-3086 |
container_title |
Andean Geology |
container_volume |
45 |
container_issue |
3 |
container_start_page |
344 |
_version_ |
1766266871477174272 |
spelling |
ftccsdartic:oai:HAL:hal-01958159v1 2023-05-15T13:58:31+02:00 Is there an active hydrothermal flux from the Orca seamount in the Bransfield Strait, Antarctica? Rodrigo, Cristian Blamey, Jenny, Huhn, Oliver Provost, Christine Universidad Andrés Bello - UNAB (CHILE) Institut für Umweltphysik Bremen (IUP) Universität Bremen Austral, Boréal et Carbone (ABC) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU) 2018-06-06 https://hal.sorbonne-universite.fr/hal-01958159 https://hal.sorbonne-universite.fr/hal-01958159/document https://hal.sorbonne-universite.fr/hal-01958159/file/3086-11559-1-PB_sans%20marque.pdf https://doi.org/10.5027/andgeoV45n3-3086 en eng HAL CCSD Servicio Nacional de Geologia y Mineria info:eu-repo/semantics/altIdentifier/doi/10.5027/andgeoV45n3-3086 hal-01958159 https://hal.sorbonne-universite.fr/hal-01958159 https://hal.sorbonne-universite.fr/hal-01958159/document https://hal.sorbonne-universite.fr/hal-01958159/file/3086-11559-1-PB_sans%20marque.pdf doi:10.5027/andgeoV45n3-3086 WOS: 000449464900003 info:eu-repo/semantics/OpenAccess ISSN: 0718-7092 EISSN: 0718-7106 Andean geology https://hal.sorbonne-universite.fr/hal-01958159 Andean geology, Servicio Nacional de Geologia y Mineria, 2018, 45 (3), pp.344. ⟨10.5027/andgeoV45n3-3086⟩ Hydrothermal Helium isotope Thermophiles Seamount Volcanism Rift system Isótopo de helio Monte submarino Volcanismo Termófilos Antarctica Palabras clave: Hidrotermal Sistema de rift Antártica [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2018 ftccsdartic https://doi.org/10.5027/andgeoV45n3-3086 2021-12-19T02:07:50Z The rifting zone of Bransfield Strait, Antarctica, is tectonically and geologically unique. It is a back-arc basin that was opened by extensional forces associated to roll-back subduction after cessation of spreading activity of the Phoenix Ridge, and the transtension of the westward ending of Scotia-Antarctica Plate boundary. The Bransfield Rift/ Ridge is still active generating volcanism or magma rise to force hydrothermal activity. During the ANT-XXV/4 cruise onboard R/V "Polarstern", standard CTD and beam transmission measurements were done to determine temperature anomaly and turbidity. Water sampling was performed to determine δ 3 He and to find thermophilic microorganisms to examine the Orca seamount hydrothermal activity. A temperature anomaly of ~0.08 °C, a pick of turbidity, and high value of δ 3 He (>10%) were found inside Orca seamount. Results are consistent with a hydrothermal flux coming from the seamount. The report of the first observation of thermophilic and hyperthermophilic microorganisms in cold deep Antarctic waters is part of this study. Inside Orca seamount these microorganisms were found at three different depth levels close to the bottom. We suggest that the fluid migration from the volcano resulted from recent magmatic activity and provided the required elemental nutrients for microbial growth. Besides some thermophiles were found outside the seamount in a small quantity close to the seafloor. These would probably be related to subsidiary structures of the Orca seamount, or were transported by currents from other active volcanic sites as Deception Island. The finding of these thermophilic and hyperthermophilic microorganisms raise questions about the dispersal and their resistance in these extreme environments. ¿Existe un flujo hidrotermal activo desde el monte submarino Orca en el estrecho Bransfield, Antártica?. La zona de rifting del estrecho Bransfield, Antártica, es tectónica y geológicamente única. Es una cuenca de trasarco originada por fuerzas de extensión asociadas a ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Antártica Bransfield Strait Deception Island Orca Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Bransfield Strait Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) Estrecho ENVELOPE(-60.783,-60.783,-62.467,-62.467) Estrecho Bransfield ENVELOPE(-54.000,-54.000,-61.500,-61.500) Orca Seamount ENVELOPE(-58.400,-58.400,-62.433,-62.433) Andean Geology 45 3 344 |