Table_1_Mineralogy of Deep-Sea Coral Aragonites as a Function of Aragonite Saturation State.DOCX

In an ocean with rapidly changing chemistry, studies have assessed coral skeletal health under projected ocean acidification (OA) scenarios by characterizing morphological distortions in skeletal architecture and measuring bulk properties, such as net calcification and dissolution. Few studies offer...

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Main Authors: Gabriela A. Farfan, Erik E. Cordes, Rhian G. Waller, Thomas M. DeCarlo, Colleen M. Hansel
Format: Dataset
Language:unknown
Published: 2018
Subjects:
Online Access:https://doi.org/10.3389/fmars.2018.00473.s001
https://figshare.com/articles/Table_1_Mineralogy_of_Deep-Sea_Coral_Aragonites_as_a_Function_of_Aragonite_Saturation_State_DOCX/7441673
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spelling ftfrontimediafig:oai:figshare.com:article/7441673 2023-05-15T17:08:40+02:00 Table_1_Mineralogy of Deep-Sea Coral Aragonites as a Function of Aragonite Saturation State.DOCX Gabriela A. Farfan Erik E. Cordes Rhian G. Waller Thomas M. DeCarlo Colleen M. Hansel 2018-12-10T04:09:34Z https://doi.org/10.3389/fmars.2018.00473.s001 https://figshare.com/articles/Table_1_Mineralogy_of_Deep-Sea_Coral_Aragonites_as_a_Function_of_Aragonite_Saturation_State_DOCX/7441673 unknown doi:10.3389/fmars.2018.00473.s001 https://figshare.com/articles/Table_1_Mineralogy_of_Deep-Sea_Coral_Aragonites_as_a_Function_of_Aragonite_Saturation_State_DOCX/7441673 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering deep-sea corals Lophelia pertusa crystallography mineralogy X-ray diffraction ocean acidification aragonite saturation state aragonite Dataset 2018 ftfrontimediafig https://doi.org/10.3389/fmars.2018.00473.s001 2018-12-12T23:59:09Z In an ocean with rapidly changing chemistry, studies have assessed coral skeletal health under projected ocean acidification (OA) scenarios by characterizing morphological distortions in skeletal architecture and measuring bulk properties, such as net calcification and dissolution. Few studies offer more detailed information on skeletal mineralogy. Since aragonite crystallography will at least partially govern the material properties of coral skeletons, such as solubility and strength, it is important to understand how it is influenced by environmental stressors. Here, we take a mineralogical approach using micro X-ray diffraction (XRD) and whole pattern Rietveld refinement analysis to track crystallographic shifts in deep-sea coral Lophelia pertusa samples collected along a natural seawater aragonite saturation state gradient (Ω sw = 1.15–1.44) in the Gulf of Mexico. Our results reveal statistically significant linear relationships between rising Ω sw and increasing unit cell volume driven by an anisotropic lengthening along the b-axis. These structural changes are similarly observed in synthetic aragonites precipitated under various saturation states, indicating that these changes are inherent to the crystallography of aragonite. Increased crystallographic disorder via widening of the full width at half maximum of the main (111) XRD peaks trend with increased Ba substitutions for Ca, however, trace substitutions by Ba, Sr, and Mg do not trend with crystal lattice parameters in our samples. Instead, we observe a significant trend of increasing calcite content as a function of both decreasing unit cell parameters as well as decreasing Ω sw . This may make calcite incorporation an important factor to consider in coral crystallography, especially under varying aragonite saturation states (Ω Ar ). Finally, by defining crystallography-based linear relationships between Ω Ar of synthetic aragonite analogs and lattice parameters, we predict internal calcifying fluid saturation state (Ω cf = 11.1–17.3 calculated from ... Dataset Lophelia pertusa Ocean acidification Frontiers: Figshare
institution Open Polar
collection Frontiers: Figshare
op_collection_id ftfrontimediafig
language unknown
topic Oceanography
Marine Biology
Marine Geoscience
Biological Oceanography
Chemical Oceanography
Physical Oceanography
Marine Engineering
deep-sea corals
Lophelia pertusa
crystallography
mineralogy
X-ray diffraction
ocean acidification
aragonite saturation state
aragonite
spellingShingle Oceanography
Marine Biology
Marine Geoscience
Biological Oceanography
Chemical Oceanography
Physical Oceanography
Marine Engineering
deep-sea corals
Lophelia pertusa
crystallography
mineralogy
X-ray diffraction
ocean acidification
aragonite saturation state
aragonite
Gabriela A. Farfan
Erik E. Cordes
Rhian G. Waller
Thomas M. DeCarlo
Colleen M. Hansel
Table_1_Mineralogy of Deep-Sea Coral Aragonites as a Function of Aragonite Saturation State.DOCX
topic_facet Oceanography
Marine Biology
Marine Geoscience
Biological Oceanography
Chemical Oceanography
Physical Oceanography
Marine Engineering
deep-sea corals
Lophelia pertusa
crystallography
mineralogy
X-ray diffraction
ocean acidification
aragonite saturation state
aragonite
description In an ocean with rapidly changing chemistry, studies have assessed coral skeletal health under projected ocean acidification (OA) scenarios by characterizing morphological distortions in skeletal architecture and measuring bulk properties, such as net calcification and dissolution. Few studies offer more detailed information on skeletal mineralogy. Since aragonite crystallography will at least partially govern the material properties of coral skeletons, such as solubility and strength, it is important to understand how it is influenced by environmental stressors. Here, we take a mineralogical approach using micro X-ray diffraction (XRD) and whole pattern Rietveld refinement analysis to track crystallographic shifts in deep-sea coral Lophelia pertusa samples collected along a natural seawater aragonite saturation state gradient (Ω sw = 1.15–1.44) in the Gulf of Mexico. Our results reveal statistically significant linear relationships between rising Ω sw and increasing unit cell volume driven by an anisotropic lengthening along the b-axis. These structural changes are similarly observed in synthetic aragonites precipitated under various saturation states, indicating that these changes are inherent to the crystallography of aragonite. Increased crystallographic disorder via widening of the full width at half maximum of the main (111) XRD peaks trend with increased Ba substitutions for Ca, however, trace substitutions by Ba, Sr, and Mg do not trend with crystal lattice parameters in our samples. Instead, we observe a significant trend of increasing calcite content as a function of both decreasing unit cell parameters as well as decreasing Ω sw . This may make calcite incorporation an important factor to consider in coral crystallography, especially under varying aragonite saturation states (Ω Ar ). Finally, by defining crystallography-based linear relationships between Ω Ar of synthetic aragonite analogs and lattice parameters, we predict internal calcifying fluid saturation state (Ω cf = 11.1–17.3 calculated from ...
format Dataset
author Gabriela A. Farfan
Erik E. Cordes
Rhian G. Waller
Thomas M. DeCarlo
Colleen M. Hansel
author_facet Gabriela A. Farfan
Erik E. Cordes
Rhian G. Waller
Thomas M. DeCarlo
Colleen M. Hansel
author_sort Gabriela A. Farfan
title Table_1_Mineralogy of Deep-Sea Coral Aragonites as a Function of Aragonite Saturation State.DOCX
title_short Table_1_Mineralogy of Deep-Sea Coral Aragonites as a Function of Aragonite Saturation State.DOCX
title_full Table_1_Mineralogy of Deep-Sea Coral Aragonites as a Function of Aragonite Saturation State.DOCX
title_fullStr Table_1_Mineralogy of Deep-Sea Coral Aragonites as a Function of Aragonite Saturation State.DOCX
title_full_unstemmed Table_1_Mineralogy of Deep-Sea Coral Aragonites as a Function of Aragonite Saturation State.DOCX
title_sort table_1_mineralogy of deep-sea coral aragonites as a function of aragonite saturation state.docx
publishDate 2018
url https://doi.org/10.3389/fmars.2018.00473.s001
https://figshare.com/articles/Table_1_Mineralogy_of_Deep-Sea_Coral_Aragonites_as_a_Function_of_Aragonite_Saturation_State_DOCX/7441673
genre Lophelia pertusa
Ocean acidification
genre_facet Lophelia pertusa
Ocean acidification
op_relation doi:10.3389/fmars.2018.00473.s001
https://figshare.com/articles/Table_1_Mineralogy_of_Deep-Sea_Coral_Aragonites_as_a_Function_of_Aragonite_Saturation_State_DOCX/7441673
op_rights CC BY 4.0
op_rightsnorm CC-BY
op_doi https://doi.org/10.3389/fmars.2018.00473.s001
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