Vivianite formation in ferruginous sediments from Lake Towuti, Indonesia
<p>Ferruginous lacustrine systems, such as Lake Towuti, Indonesia, are characterized by a specific type of phosphorus cycling in which hydrous ferric iron (oxyhydr)oxides trap and precipitate phosphorus to the sediment, which reduces its bioavailability in the water column and thereby restrict...
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Copernicus Publications
2020-04-01
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Series: | Biogeosciences |
Online Access: | https://www.biogeosciences.net/17/1955/2020/bg-17-1955-2020.pdf |
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Article |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
A. Vuillemin A. Vuillemin A. Friese R. Wirth J. A. Schuessler A. M. Schleicher H. Kemnitz A. Lücke K. W. Bauer K. W. Bauer S. Nomosatryo S. Nomosatryo F. von Blanckenburg R. Simister L. G. Ordoñez D. Ariztegui C. Henny J. M. Russell S. Bijaksana H. Vogel S. A. Crowe S. A. Crowe S. A. Crowe J. Kallmeyer |
spellingShingle |
A. Vuillemin A. Vuillemin A. Friese R. Wirth J. A. Schuessler A. M. Schleicher H. Kemnitz A. Lücke K. W. Bauer K. W. Bauer S. Nomosatryo S. Nomosatryo F. von Blanckenburg R. Simister L. G. Ordoñez D. Ariztegui C. Henny J. M. Russell S. Bijaksana H. Vogel S. A. Crowe S. A. Crowe S. A. Crowe J. Kallmeyer Vivianite formation in ferruginous sediments from Lake Towuti, Indonesia Biogeosciences |
author_facet |
A. Vuillemin A. Vuillemin A. Friese R. Wirth J. A. Schuessler A. M. Schleicher H. Kemnitz A. Lücke K. W. Bauer K. W. Bauer S. Nomosatryo S. Nomosatryo F. von Blanckenburg R. Simister L. G. Ordoñez D. Ariztegui C. Henny J. M. Russell S. Bijaksana H. Vogel S. A. Crowe S. A. Crowe S. A. Crowe J. Kallmeyer |
author_sort |
A. Vuillemin |
title |
Vivianite formation in ferruginous sediments from Lake Towuti, Indonesia |
title_short |
Vivianite formation in ferruginous sediments from Lake Towuti, Indonesia |
title_full |
Vivianite formation in ferruginous sediments from Lake Towuti, Indonesia |
title_fullStr |
Vivianite formation in ferruginous sediments from Lake Towuti, Indonesia |
title_full_unstemmed |
Vivianite formation in ferruginous sediments from Lake Towuti, Indonesia |
title_sort |
vivianite formation in ferruginous sediments from lake towuti, indonesia |
publisher |
Copernicus Publications |
series |
Biogeosciences |
issn |
1726-4170 1726-4189 |
publishDate |
2020-04-01 |
description |
<p>Ferruginous lacustrine systems, such as Lake Towuti,
Indonesia, are characterized by a specific type of phosphorus cycling in
which hydrous ferric iron (oxyhydr)oxides trap and precipitate phosphorus to
the sediment, which reduces its bioavailability in the water column and
thereby restricts primary production. The oceans were also ferruginous
during the Archean, thus understanding the dynamics of phosphorus in
modern-day ferruginous analogues may shed light on the marine biogeochemical
cycling that dominated much of Earth's history. Here we report the presence
of large crystals (<span class="inline-formula">>5</span> mm) and nodules (<span class="inline-formula">>5</span> cm) of
vivianite – a ferrous iron phosphate – in sediment cores from Lake Towuti
and address the processes of vivianite formation, phosphorus retention by
iron and the related mineral transformations during early diagenesis in
ferruginous sediments.</p>
<p>Core scan imaging, together with analyses of bulk sediment and pore water
geochemistry, document a 30 m long interval consisting of sideritic and
non-sideritic clayey beds and diatomaceous oozes containing vivianites.
High-resolution imaging of vivianite revealed continuous growth of crystals
from tabular to rosette habits that eventually form large (up to 7 cm)
vivianite nodules in the sediment. Mineral inclusions like millerite and
siderite reflect diagenetic mineral formation antecedent to the one of
vivianite that is related to microbial reduction of iron and sulfate.
Together with the pore water profiles, these data suggest that the
precipitation of millerite, siderite and vivianite in soft ferruginous
sediments stems from the progressive consumption of dissolved terminal
electron acceptors and the typical evolution of pore water geochemistry
during diagenesis. Based on solute concentrations and modeled mineral
saturation indices,<span id="page1956"/> we inferred vivianite formation to initiate around 20 m
depth in the sediment. Negative <span class="inline-formula"><i>δ</i><sup>56</sup>Fe</span> values of vivianite
indicated incorporation of kinetically fractionated light <span class="inline-formula">Fe<sup>2+</sup></span> into the
crystals, likely derived from active reduction and dissolution of ferric
oxides and transient ferrous phases during early diagenesis. The size and
growth history of the nodules indicate that, after formation, continued
growth of vivianite crystals constitutes a sink for P during burial,
resulting in long-term P sequestration in ferruginous sediment.</p> |
url |
https://www.biogeosciences.net/17/1955/2020/bg-17-1955-2020.pdf |
work_keys_str_mv |
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doaj-f2f480bc0c3c4af1addd6d063872b0f42020-11-25T02:07:07ZengCopernicus PublicationsBiogeosciences1726-41701726-41892020-04-01171955197310.5194/bg-17-1955-2020Vivianite formation in ferruginous sediments from Lake Towuti, IndonesiaA. Vuillemin0A. Vuillemin1A. Friese2R. Wirth3J. A. Schuessler4A. M. Schleicher5H. Kemnitz6A. Lücke7K. W. Bauer8K. W. Bauer9S. Nomosatryo10S. Nomosatryo11F. von Blanckenburg12R. Simister13L. G. Ordoñez14D. Ariztegui15C. Henny16J. M. Russell17S. Bijaksana18H. Vogel19S. A. Crowe20S. A. Crowe21S. A. Crowe22J. Kallmeyer23GFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, 14473 Potsdam, Germanynow at: Department of Earth and Environmental Science, Paleontology and Geobiology, Ludwig-Maximilians-Universität München, 80333 Munich, GermanyGFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, 14473 Potsdam, GermanyGFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, 14473 Potsdam, GermanyGFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, 14473 Potsdam, GermanyGFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, 14473 Potsdam, GermanyGFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, 14473 Potsdam, GermanyJülich Research Center, Institute of Bio- and Geosciences 3, Agrosphere, 52428 Jülich, GermanyDepartment of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, Vancouver, BC, V6T 1Z4, Canadanow at: Department of Earth Sciences, University of Hong Kong, Hong Kong SAR, ChinaGFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, 14473 Potsdam, GermanyResearch Center for Limnology, Indonesian Institute of Sciences (LIPI), Cibinong-Bogor, IndonesiaGFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, 14473 Potsdam, GermanyDepartment of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, Vancouver, BC, V6T 1Z4, CanadaDepartment of Earth Sciences, University of Geneva, Geneva, 1205, SwitzerlandDepartment of Earth Sciences, University of Geneva, Geneva, 1205, SwitzerlandResearch Center for Limnology, Indonesian Institute of Sciences (LIPI), Cibinong-Bogor, IndonesiaDepartment of Earth, Environmental, and Planetary Sciences, Brown University, 324 Brook Street, Providence, RI 02912, USAFaculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, 15 Bandung, 50132, IndonesiaInstitute of Geological Sciences and Oeschger Centre for Climate Change Research, University of Bern, Bern, 3012, SwitzerlandDepartment of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, Vancouver, BC, V6T 1Z4, CanadaDepartment of Microbiology and Immunology, University of British Columbia, Vancouver, BC, V6T 1Z3, Canadanow at: Department of Earth Sciences, University of Hong Kong, Hong Kong SAR, ChinaGFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, 14473 Potsdam, Germany<p>Ferruginous lacustrine systems, such as Lake Towuti, Indonesia, are characterized by a specific type of phosphorus cycling in which hydrous ferric iron (oxyhydr)oxides trap and precipitate phosphorus to the sediment, which reduces its bioavailability in the water column and thereby restricts primary production. The oceans were also ferruginous during the Archean, thus understanding the dynamics of phosphorus in modern-day ferruginous analogues may shed light on the marine biogeochemical cycling that dominated much of Earth's history. Here we report the presence of large crystals (<span class="inline-formula">>5</span> mm) and nodules (<span class="inline-formula">>5</span> cm) of vivianite – a ferrous iron phosphate – in sediment cores from Lake Towuti and address the processes of vivianite formation, phosphorus retention by iron and the related mineral transformations during early diagenesis in ferruginous sediments.</p> <p>Core scan imaging, together with analyses of bulk sediment and pore water geochemistry, document a 30 m long interval consisting of sideritic and non-sideritic clayey beds and diatomaceous oozes containing vivianites. High-resolution imaging of vivianite revealed continuous growth of crystals from tabular to rosette habits that eventually form large (up to 7 cm) vivianite nodules in the sediment. Mineral inclusions like millerite and siderite reflect diagenetic mineral formation antecedent to the one of vivianite that is related to microbial reduction of iron and sulfate. Together with the pore water profiles, these data suggest that the precipitation of millerite, siderite and vivianite in soft ferruginous sediments stems from the progressive consumption of dissolved terminal electron acceptors and the typical evolution of pore water geochemistry during diagenesis. Based on solute concentrations and modeled mineral saturation indices,<span id="page1956"/> we inferred vivianite formation to initiate around 20 m depth in the sediment. Negative <span class="inline-formula"><i>δ</i><sup>56</sup>Fe</span> values of vivianite indicated incorporation of kinetically fractionated light <span class="inline-formula">Fe<sup>2+</sup></span> into the crystals, likely derived from active reduction and dissolution of ferric oxides and transient ferrous phases during early diagenesis. The size and growth history of the nodules indicate that, after formation, continued growth of vivianite crystals constitutes a sink for P during burial, resulting in long-term P sequestration in ferruginous sediment.</p>https://www.biogeosciences.net/17/1955/2020/bg-17-1955-2020.pdf |