Geochemistry of Arctic marine sediments
Soils, fine-grained ice-rafted detritus (IRD), coals, and marine surface sediments in the Arctic realm (Svalbard) were collected in 2007 and 2008 to characterize organic matter (OM) sources in Arctic marine sediments. Bulk geochemical (C:N ratio and stable carbon isotopic composition) parameters sug...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.882412 2023-05-15T14:25:58+02:00 Geochemistry of Arctic marine sediments Kim, Jung-Hyun Peterse, Francien Willmott, Verónica Klitgaard-Kristensen, Dorthe Baas, Marianne Schouten, Stefan Sinninghe Damsté, Jaap S MEDIAN LATITUDE: 79.194138 * MEDIAN LONGITUDE: 12.553703 * SOUTH-BOUND LATITUDE: 78.300000 * WEST-BOUND LONGITUDE: 10.665170 * NORTH-BOUND LATITUDE: 80.500000 * EAST-BOUND LONGITUDE: 18.858830 * MINIMUM DEPTH, sediment/rock: 0.005 m * MAXIMUM DEPTH, sediment/rock: 0.075 m 2011-11-01 text/tab-separated-values, 488 data points https://doi.pangaea.de/10.1594/PANGAEA.882412 https://doi.org/10.1594/PANGAEA.882412 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.882412 https://doi.org/10.1594/PANGAEA.882412 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Kim, Jung-Hyun; Peterse, Francien; Willmott, Verónica; Klitgaard-Kristensen, Dorthe; Baas, Marianne; Schouten, Stefan; Sinninghe Damsté, Jaap S (2011): Large ancient organic matter contributions to Arctic marine sediments (Svalbard). Limnology and Oceanography, 56(4), 1463-1474, https://doi.org/10.4319/lo.2011.56.4.1463 Arctic Ocean Area/locality Barents Sea Carbon organic total standard deviation Depth bottom/max sediment/rock top/min Event label LA07/9 Lance Latitude of event Lilliehookbreen-1 Lilliehookbreen-2 Lithology/composition/facies Longitude of event Mitra-Peninsula-1 Mitra-Peninsula-2 Mitra-Peninsula-3 Mitra-Peninsula-4 Mitra-Peninsula-5 MUC MULT MultiCorer Multiple investigations NIOZ_UU NIOZ Royal Netherlands Institute for Sea Research and Utrecht University Nitrogen NP-07-13-08 NP-07-13-09 NP-07-13-10 NP-07-13-11 Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.882412 https://doi.org/10.4319/lo.2011.56.4.1463 2023-01-20T09:09:53Z Soils, fine-grained ice-rafted detritus (IRD), coals, and marine surface sediments in the Arctic realm (Svalbard) were collected in 2007 and 2008 to characterize organic matter (OM) sources in Arctic marine sediments. Bulk geochemical (C:N ratio and stable carbon isotopic composition) parameters suggest a predominant marine contribution to sedimentary OM. The branched and isoprenoid tetraether index (a proxy of soil OM input) indicates that soil OM contribution to the marine sediments is minor. However, the presence of retene (used as an indicator for coal-derived OM), the low carbon preference index and the average chain length of n-alkanes, and the depleted bulk radiocarbon content (D14C value) suggest that ancient OM of both coal-derived and mature IRD-derived OM is being buried in the Kongsfjord-Krossfjord system of Svalbard in the high Arctic. The relatively low retene concentrations in the marine surface sediments other than those in close vicinity of Ny Ålesund, previously a coal-mining town, indicated that input of IRD-derived OM was predominantly responsible for the generally low D14C value. We applied three-end-member models based on D14C and retene and n-alkane concentration data to disentangle relative coal-derived, IRD-derived, and marine OM proportions to sedimentary OM. Sediments were comprised on average 2% ± 4% of coal-derived OM, 37% ± 17% of IRD-derived OM, and 61% ± 18% of marine OM with higher IRD-derived OM deposit in the Kongsvegen glacier front. Our results highlight the important role of ancient OM on carbon dynamics in Arctic environments, in particular for benthic food webs. Dataset Arctic Arctic Arctic Ocean Barents Sea glacier Kongsfjord* Krossfjord* Ny Ålesund Ny-Ålesund Svalbard PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean Svalbard Barents Sea Ny-Ålesund Kongsfjord ENVELOPE(29.319,29.319,70.721,70.721) Mitra ENVELOPE(11.333,11.333,79.150,79.150) Kongsvegen ENVELOPE(12.657,12.657,78.854,78.854) ENVELOPE(10.665170,18.858830,80.500000,78.300000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Arctic Ocean Area/locality Barents Sea Carbon organic total standard deviation Depth bottom/max sediment/rock top/min Event label LA07/9 Lance Latitude of event Lilliehookbreen-1 Lilliehookbreen-2 Lithology/composition/facies Longitude of event Mitra-Peninsula-1 Mitra-Peninsula-2 Mitra-Peninsula-3 Mitra-Peninsula-4 Mitra-Peninsula-5 MUC MULT MultiCorer Multiple investigations NIOZ_UU NIOZ Royal Netherlands Institute for Sea Research and Utrecht University Nitrogen NP-07-13-08 NP-07-13-09 NP-07-13-10 NP-07-13-11 |
spellingShingle |
Arctic Ocean Area/locality Barents Sea Carbon organic total standard deviation Depth bottom/max sediment/rock top/min Event label LA07/9 Lance Latitude of event Lilliehookbreen-1 Lilliehookbreen-2 Lithology/composition/facies Longitude of event Mitra-Peninsula-1 Mitra-Peninsula-2 Mitra-Peninsula-3 Mitra-Peninsula-4 Mitra-Peninsula-5 MUC MULT MultiCorer Multiple investigations NIOZ_UU NIOZ Royal Netherlands Institute for Sea Research and Utrecht University Nitrogen NP-07-13-08 NP-07-13-09 NP-07-13-10 NP-07-13-11 Kim, Jung-Hyun Peterse, Francien Willmott, Verónica Klitgaard-Kristensen, Dorthe Baas, Marianne Schouten, Stefan Sinninghe Damsté, Jaap S Geochemistry of Arctic marine sediments |
topic_facet |
Arctic Ocean Area/locality Barents Sea Carbon organic total standard deviation Depth bottom/max sediment/rock top/min Event label LA07/9 Lance Latitude of event Lilliehookbreen-1 Lilliehookbreen-2 Lithology/composition/facies Longitude of event Mitra-Peninsula-1 Mitra-Peninsula-2 Mitra-Peninsula-3 Mitra-Peninsula-4 Mitra-Peninsula-5 MUC MULT MultiCorer Multiple investigations NIOZ_UU NIOZ Royal Netherlands Institute for Sea Research and Utrecht University Nitrogen NP-07-13-08 NP-07-13-09 NP-07-13-10 NP-07-13-11 |
description |
Soils, fine-grained ice-rafted detritus (IRD), coals, and marine surface sediments in the Arctic realm (Svalbard) were collected in 2007 and 2008 to characterize organic matter (OM) sources in Arctic marine sediments. Bulk geochemical (C:N ratio and stable carbon isotopic composition) parameters suggest a predominant marine contribution to sedimentary OM. The branched and isoprenoid tetraether index (a proxy of soil OM input) indicates that soil OM contribution to the marine sediments is minor. However, the presence of retene (used as an indicator for coal-derived OM), the low carbon preference index and the average chain length of n-alkanes, and the depleted bulk radiocarbon content (D14C value) suggest that ancient OM of both coal-derived and mature IRD-derived OM is being buried in the Kongsfjord-Krossfjord system of Svalbard in the high Arctic. The relatively low retene concentrations in the marine surface sediments other than those in close vicinity of Ny Ålesund, previously a coal-mining town, indicated that input of IRD-derived OM was predominantly responsible for the generally low D14C value. We applied three-end-member models based on D14C and retene and n-alkane concentration data to disentangle relative coal-derived, IRD-derived, and marine OM proportions to sedimentary OM. Sediments were comprised on average 2% ± 4% of coal-derived OM, 37% ± 17% of IRD-derived OM, and 61% ± 18% of marine OM with higher IRD-derived OM deposit in the Kongsvegen glacier front. Our results highlight the important role of ancient OM on carbon dynamics in Arctic environments, in particular for benthic food webs. |
format |
Dataset |
author |
Kim, Jung-Hyun Peterse, Francien Willmott, Verónica Klitgaard-Kristensen, Dorthe Baas, Marianne Schouten, Stefan Sinninghe Damsté, Jaap S |
author_facet |
Kim, Jung-Hyun Peterse, Francien Willmott, Verónica Klitgaard-Kristensen, Dorthe Baas, Marianne Schouten, Stefan Sinninghe Damsté, Jaap S |
author_sort |
Kim, Jung-Hyun |
title |
Geochemistry of Arctic marine sediments |
title_short |
Geochemistry of Arctic marine sediments |
title_full |
Geochemistry of Arctic marine sediments |
title_fullStr |
Geochemistry of Arctic marine sediments |
title_full_unstemmed |
Geochemistry of Arctic marine sediments |
title_sort |
geochemistry of arctic marine sediments |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.882412 https://doi.org/10.1594/PANGAEA.882412 |
op_coverage |
MEDIAN LATITUDE: 79.194138 * MEDIAN LONGITUDE: 12.553703 * SOUTH-BOUND LATITUDE: 78.300000 * WEST-BOUND LONGITUDE: 10.665170 * NORTH-BOUND LATITUDE: 80.500000 * EAST-BOUND LONGITUDE: 18.858830 * MINIMUM DEPTH, sediment/rock: 0.005 m * MAXIMUM DEPTH, sediment/rock: 0.075 m |
long_lat |
ENVELOPE(29.319,29.319,70.721,70.721) ENVELOPE(11.333,11.333,79.150,79.150) ENVELOPE(12.657,12.657,78.854,78.854) ENVELOPE(10.665170,18.858830,80.500000,78.300000) |
geographic |
Arctic Arctic Ocean Svalbard Barents Sea Ny-Ålesund Kongsfjord Mitra Kongsvegen |
geographic_facet |
Arctic Arctic Ocean Svalbard Barents Sea Ny-Ålesund Kongsfjord Mitra Kongsvegen |
genre |
Arctic Arctic Arctic Ocean Barents Sea glacier Kongsfjord* Krossfjord* Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Arctic Arctic Arctic Ocean Barents Sea glacier Kongsfjord* Krossfjord* Ny Ålesund Ny-Ålesund Svalbard |
op_source |
Supplement to: Kim, Jung-Hyun; Peterse, Francien; Willmott, Verónica; Klitgaard-Kristensen, Dorthe; Baas, Marianne; Schouten, Stefan; Sinninghe Damsté, Jaap S (2011): Large ancient organic matter contributions to Arctic marine sediments (Svalbard). Limnology and Oceanography, 56(4), 1463-1474, https://doi.org/10.4319/lo.2011.56.4.1463 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.882412 https://doi.org/10.1594/PANGAEA.882412 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.882412 https://doi.org/10.4319/lo.2011.56.4.1463 |
_version_ |
1766298450863849472 |