Recent environmental change and human impact on Svalbard: the lake-sediment geochemical record
This is the eighth in a series of nine papers published in this special issue dedicated to recent environmental change on Svalbard. H.J.B. Birks, Vivienne J. Jones, and Neil L. Rose were guest editors of this special issue. As part of a broader investigation into recent environmental change on Svalb...
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ftunivbergen:oai:bora.uib.no:1956/2484 2023-05-15T15:13:20+02:00 Recent environmental change and human impact on Svalbard: the lake-sediment geochemical record Boyle, John F. Rose, Neil L. Appleby, P. G. Birks, Harry John Betteley 2004 application/pdf https://hdl.handle.net/1956/2484 https://doi.org/10.1023/b:jopl.0000022549.07298.6e eng eng Springer urn:issn:1573-0417 https://hdl.handle.net/1956/2484 https://doi.org/10.1023/b:jopl.0000022549.07298.6e Arctic Environmental change Geochemistry Heavy metals Palaeolimnology VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Peer reviewed Journal article 2004 ftunivbergen https://doi.org/10.1023/b:jopl.0000022549.07298.6e 2023-03-14T17:39:06Z This is the eighth in a series of nine papers published in this special issue dedicated to recent environmental change on Svalbard. H.J.B. Birks, Vivienne J. Jones, and Neil L. Rose were guest editors of this special issue. As part of a broader investigation into recent environmental change on Svalbard, the inorganic geochemical record of six lake-sediment cores was analysed. The major temporal trends in sediment elemental composition are driven by variations in two contrasting sediment components, both derived from catchment soils: (1) mineral matter, and (2) soil organic matter (SOM), enriched in Fe and Mn oxides and heavy metals. Two environmental impacts are recorded in most or all of the lake sediment sequences. An up-core increase in organic matter can be partly attributed to diagenetic effects, but also requires an enhanced supply of SOM relative to mineral matter. In addition, the central and southern sites all show a ca. 1970 event characterised by an enhanced mineral matter accumulation rate. This requires either an enhanced allochthonous supply or an enhanced mobilisation of littoral sediments. In either case a regional-scale driving force, such as a shift in climate, is required. At five of the lakes the sediment heavy metal concentration profiles can be explained entirely by natural factors. However, at Tenndammen (U), situated close to the Svalbard’s largest settlement at Longyearbyen, possible anthropogenic Pb enrichment is found. Comparison of observed and expected heavy metal profiles (based on Greenland ice-core data) shows that the lakes are generally too insensitive to have recorded a long-transported heavy metal pollution signal. Article in Journal/Newspaper Arctic Greenland Greenland ice core ice core Longyearbyen Svalbard University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Birks ENVELOPE(-62.163,-62.163,-65.290,-65.290) Greenland Longyearbyen Svalbard Tenndammen ENVELOPE(15.016,15.016,78.098,78.098) |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
Arctic Environmental change Geochemistry Heavy metals Palaeolimnology VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 |
spellingShingle |
Arctic Environmental change Geochemistry Heavy metals Palaeolimnology VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Boyle, John F. Rose, Neil L. Appleby, P. G. Birks, Harry John Betteley Recent environmental change and human impact on Svalbard: the lake-sediment geochemical record |
topic_facet |
Arctic Environmental change Geochemistry Heavy metals Palaeolimnology VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 |
description |
This is the eighth in a series of nine papers published in this special issue dedicated to recent environmental change on Svalbard. H.J.B. Birks, Vivienne J. Jones, and Neil L. Rose were guest editors of this special issue. As part of a broader investigation into recent environmental change on Svalbard, the inorganic geochemical record of six lake-sediment cores was analysed. The major temporal trends in sediment elemental composition are driven by variations in two contrasting sediment components, both derived from catchment soils: (1) mineral matter, and (2) soil organic matter (SOM), enriched in Fe and Mn oxides and heavy metals. Two environmental impacts are recorded in most or all of the lake sediment sequences. An up-core increase in organic matter can be partly attributed to diagenetic effects, but also requires an enhanced supply of SOM relative to mineral matter. In addition, the central and southern sites all show a ca. 1970 event characterised by an enhanced mineral matter accumulation rate. This requires either an enhanced allochthonous supply or an enhanced mobilisation of littoral sediments. In either case a regional-scale driving force, such as a shift in climate, is required. At five of the lakes the sediment heavy metal concentration profiles can be explained entirely by natural factors. However, at Tenndammen (U), situated close to the Svalbard’s largest settlement at Longyearbyen, possible anthropogenic Pb enrichment is found. Comparison of observed and expected heavy metal profiles (based on Greenland ice-core data) shows that the lakes are generally too insensitive to have recorded a long-transported heavy metal pollution signal. |
format |
Article in Journal/Newspaper |
author |
Boyle, John F. Rose, Neil L. Appleby, P. G. Birks, Harry John Betteley |
author_facet |
Boyle, John F. Rose, Neil L. Appleby, P. G. Birks, Harry John Betteley |
author_sort |
Boyle, John F. |
title |
Recent environmental change and human impact on Svalbard: the lake-sediment geochemical record |
title_short |
Recent environmental change and human impact on Svalbard: the lake-sediment geochemical record |
title_full |
Recent environmental change and human impact on Svalbard: the lake-sediment geochemical record |
title_fullStr |
Recent environmental change and human impact on Svalbard: the lake-sediment geochemical record |
title_full_unstemmed |
Recent environmental change and human impact on Svalbard: the lake-sediment geochemical record |
title_sort |
recent environmental change and human impact on svalbard: the lake-sediment geochemical record |
publisher |
Springer |
publishDate |
2004 |
url |
https://hdl.handle.net/1956/2484 https://doi.org/10.1023/b:jopl.0000022549.07298.6e |
long_lat |
ENVELOPE(-62.163,-62.163,-65.290,-65.290) ENVELOPE(15.016,15.016,78.098,78.098) |
geographic |
Arctic Birks Greenland Longyearbyen Svalbard Tenndammen |
geographic_facet |
Arctic Birks Greenland Longyearbyen Svalbard Tenndammen |
genre |
Arctic Greenland Greenland ice core ice core Longyearbyen Svalbard |
genre_facet |
Arctic Greenland Greenland ice core ice core Longyearbyen Svalbard |
op_relation |
urn:issn:1573-0417 https://hdl.handle.net/1956/2484 https://doi.org/10.1023/b:jopl.0000022549.07298.6e |
op_doi |
https://doi.org/10.1023/b:jopl.0000022549.07298.6e |
_version_ |
1766343899070070784 |