Uranium-series dating and growth characteristics of the deep-sea scleractinian coral : Enallopsammia rostrata from the Equatorial Pacific.
International audience The deep-sea coral, Enallopsammia rostrata, a member of the Dendrophylliidae family, is a major structure-forming species that creates massive dendroid colonies, up to 1 m wide and 0.5 m tall. Living colonies of E. rostrata have been collected using the PISCES submersibles fro...
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ftunivnantes:oai:HAL:hal-00509150v1 2023-05-15T17:08:48+02:00 Uranium-series dating and growth characteristics of the deep-sea scleractinian coral : Enallopsammia rostrata from the Equatorial Pacific. Houlbreque, F. Mcculloch, M. Roark, B. Guilderson, T. Meibom, A. Kimball, J.C. Mortimer, G. Cuif, J.P. Dunbar, R.B. Stanford University RSES Australian National University (ANU) Laboratoire d'Etude de la Matière Extraterrestre / UMS Nano-analyses (LEME / UNA) Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS) Interactions et dynamique des environnements de surface (IDES) Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2010 https://hal.archives-ouvertes.fr/hal-00509150 https://doi.org/10.1016/j.gca.2010.01.017 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gca.2010.01.017 hal-00509150 https://hal.archives-ouvertes.fr/hal-00509150 doi:10.1016/j.gca.2010.01.017 ISSN: 0016-7037 EISSN: 0016-7037 Geochimica et Cosmochimica Acta https://hal.archives-ouvertes.fr/hal-00509150 Geochimica et Cosmochimica Acta, Elsevier, 2010, 74 (8), pp.2380-2395 (IF 4.385). ⟨10.1016/j.gca.2010.01.017⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2010 ftunivnantes https://doi.org/10.1016/j.gca.2010.01.017 2022-10-18T22:56:03Z International audience The deep-sea coral, Enallopsammia rostrata, a member of the Dendrophylliidae family, is a major structure-forming species that creates massive dendroid colonies, up to 1 m wide and 0.5 m tall. Living colonies of E. rostrata have been collected using the PISCES submersibles from three locations from 480 to 788 m water depth in the Line Islands (similar to 160 degrees W) in the Equatorial Pacific. We have applied to these colonies a high sensitivity, low blank technique to determine U-series ages in small quantities (70 +/- 15 mg) of modern and near modern calcareous skeletons using MC-ICP-MS (Multi-collector Inductively Coupled Plasma Mass Spectrometer). The application of this method to living slow-growing colonies from a range of sites as well as the observations of axial growth patterns in thin sections of their skeletons offer the first expanded and well constrained data on longevity, growth pattern and mean growth rates in E. rostrata. Absolute dated specimens indicate life spans of colonies ranging from 209 +/- 8 yrs to 605 +/- 7 yrs with radial growth rates from 0.012 to 0.072 mm yr(-1) and vertical extension rates from 0.6 to 1.9 mm yr(-1). The linear growth rates reported here are lower than those reported for other deep-sea scleractinian corals (Lophelia pertusa and Madrepora oculata). The U-series dating indicates that the growth ring patterns of E. rostrata are not consistent with annual periodicity emphasizing the importance of absolute radiometric dating methods to constrain growth rates. Slow accretion and extreme longevity make this species and its habitat especially vulnerable to disturbances and impacts from human activities. This dating method combined with observation of growth patterns opens up new perspectives in the field of deep-sea corals since it can provide quantitative estimates of growth rates and longevity of deep-sea corals in general. Article in Journal/Newspaper Lophelia pertusa Université de Nantes: HAL-UNIV-NANTES Line Islands ENVELOPE(-67.233,-67.233,-67.933,-67.933) Pacific Geochimica et Cosmochimica Acta 74 8 2380 2395 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Houlbreque, F. Mcculloch, M. Roark, B. Guilderson, T. Meibom, A. Kimball, J.C. Mortimer, G. Cuif, J.P. Dunbar, R.B. Uranium-series dating and growth characteristics of the deep-sea scleractinian coral : Enallopsammia rostrata from the Equatorial Pacific. |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience The deep-sea coral, Enallopsammia rostrata, a member of the Dendrophylliidae family, is a major structure-forming species that creates massive dendroid colonies, up to 1 m wide and 0.5 m tall. Living colonies of E. rostrata have been collected using the PISCES submersibles from three locations from 480 to 788 m water depth in the Line Islands (similar to 160 degrees W) in the Equatorial Pacific. We have applied to these colonies a high sensitivity, low blank technique to determine U-series ages in small quantities (70 +/- 15 mg) of modern and near modern calcareous skeletons using MC-ICP-MS (Multi-collector Inductively Coupled Plasma Mass Spectrometer). The application of this method to living slow-growing colonies from a range of sites as well as the observations of axial growth patterns in thin sections of their skeletons offer the first expanded and well constrained data on longevity, growth pattern and mean growth rates in E. rostrata. Absolute dated specimens indicate life spans of colonies ranging from 209 +/- 8 yrs to 605 +/- 7 yrs with radial growth rates from 0.012 to 0.072 mm yr(-1) and vertical extension rates from 0.6 to 1.9 mm yr(-1). The linear growth rates reported here are lower than those reported for other deep-sea scleractinian corals (Lophelia pertusa and Madrepora oculata). The U-series dating indicates that the growth ring patterns of E. rostrata are not consistent with annual periodicity emphasizing the importance of absolute radiometric dating methods to constrain growth rates. Slow accretion and extreme longevity make this species and its habitat especially vulnerable to disturbances and impacts from human activities. This dating method combined with observation of growth patterns opens up new perspectives in the field of deep-sea corals since it can provide quantitative estimates of growth rates and longevity of deep-sea corals in general. |
author2 |
Stanford University RSES Australian National University (ANU) Laboratoire d'Etude de la Matière Extraterrestre / UMS Nano-analyses (LEME / UNA) Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS) Interactions et dynamique des environnements de surface (IDES) Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Houlbreque, F. Mcculloch, M. Roark, B. Guilderson, T. Meibom, A. Kimball, J.C. Mortimer, G. Cuif, J.P. Dunbar, R.B. |
author_facet |
Houlbreque, F. Mcculloch, M. Roark, B. Guilderson, T. Meibom, A. Kimball, J.C. Mortimer, G. Cuif, J.P. Dunbar, R.B. |
author_sort |
Houlbreque, F. |
title |
Uranium-series dating and growth characteristics of the deep-sea scleractinian coral : Enallopsammia rostrata from the Equatorial Pacific. |
title_short |
Uranium-series dating and growth characteristics of the deep-sea scleractinian coral : Enallopsammia rostrata from the Equatorial Pacific. |
title_full |
Uranium-series dating and growth characteristics of the deep-sea scleractinian coral : Enallopsammia rostrata from the Equatorial Pacific. |
title_fullStr |
Uranium-series dating and growth characteristics of the deep-sea scleractinian coral : Enallopsammia rostrata from the Equatorial Pacific. |
title_full_unstemmed |
Uranium-series dating and growth characteristics of the deep-sea scleractinian coral : Enallopsammia rostrata from the Equatorial Pacific. |
title_sort |
uranium-series dating and growth characteristics of the deep-sea scleractinian coral : enallopsammia rostrata from the equatorial pacific. |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.archives-ouvertes.fr/hal-00509150 https://doi.org/10.1016/j.gca.2010.01.017 |
long_lat |
ENVELOPE(-67.233,-67.233,-67.933,-67.933) |
geographic |
Line Islands Pacific |
geographic_facet |
Line Islands Pacific |
genre |
Lophelia pertusa |
genre_facet |
Lophelia pertusa |
op_source |
ISSN: 0016-7037 EISSN: 0016-7037 Geochimica et Cosmochimica Acta https://hal.archives-ouvertes.fr/hal-00509150 Geochimica et Cosmochimica Acta, Elsevier, 2010, 74 (8), pp.2380-2395 (IF 4.385). ⟨10.1016/j.gca.2010.01.017⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gca.2010.01.017 hal-00509150 https://hal.archives-ouvertes.fr/hal-00509150 doi:10.1016/j.gca.2010.01.017 |
op_doi |
https://doi.org/10.1016/j.gca.2010.01.017 |
container_title |
Geochimica et Cosmochimica Acta |
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74 |
container_issue |
8 |
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2380 |
op_container_end_page |
2395 |
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1766064670060314624 |