The mineral magnetic properties of an annually laminated Holocene lake-sediment sequence in northern Sweden
Detailed mineral magnetic measurements were conducted on a 9000-year varved lake sediment sequence in northern Sweden (Lake Sarsjön). The results demonstrate that the paramagnetic susceptibility reflects the concentration of detrital minerogenic material in the lake sediments, which is controlled to...
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Online Access: | http://dx.doi.org/10.1191/095968399670520633 http://journals.sagepub.com/doi/pdf/10.1191/095968399670520633 |
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crsagepubl:10.1191/095968399670520633 2024-04-28T08:22:00+00:00 The mineral magnetic properties of an annually laminated Holocene lake-sediment sequence in northern Sweden Snowball, Ian Sandgren, Per Petterson, Gunilla 1999 http://dx.doi.org/10.1191/095968399670520633 http://journals.sagepub.com/doi/pdf/10.1191/095968399670520633 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 9, issue 3, page 353-362 ISSN 0959-6836 1477-0911 Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change journal-article 1999 crsagepubl https://doi.org/10.1191/095968399670520633 2024-04-02T08:13:36Z Detailed mineral magnetic measurements were conducted on a 9000-year varved lake sediment sequence in northern Sweden (Lake Sarsjön). The results demonstrate that the paramagnetic susceptibility reflects the concentration of detrital minerogenic material in the lake sediments, which is controlled to a large extent by the intensity of the spring snow melt. In contrast, the concentration of ferrimagnetic magnetite (reflected by initial magnetic susceptibility and magnetic hysteresis parameters) is positively correlated to the concentration of organic carbon, which is most likely of an autochthonous origin. This magnetite has magnetic properties that are characteristic of stable single-domain magnetite grains produced by magnetotactic bacteria. The paramagnetic susceptibility record clearly points to a climatic excursion in the early Holocene between 6100± 174 bc and 5700± 167 bc, which can be correlated to an d 18 O excursion (a cold event) in the Greenland ice cores and lake sediments in southern Germany, and also to a short period of increased glacial activity in Scandinavia. The middle Holocene (4000–1760 bc) is characterized by sediment with a low concentration of detrital minerals and a high organic carbon content, whereas the late Holocene (1760 bc–ad 1918) is marked by more frequent and intense periods of detrital sedimentation. Article in Journal/Newspaper Greenland Greenland ice cores Northern Sweden SAGE Publications The Holocene 9 3 353 362 |
institution |
Open Polar |
collection |
SAGE Publications |
op_collection_id |
crsagepubl |
language |
English |
topic |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
spellingShingle |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change Snowball, Ian Sandgren, Per Petterson, Gunilla The mineral magnetic properties of an annually laminated Holocene lake-sediment sequence in northern Sweden |
topic_facet |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
description |
Detailed mineral magnetic measurements were conducted on a 9000-year varved lake sediment sequence in northern Sweden (Lake Sarsjön). The results demonstrate that the paramagnetic susceptibility reflects the concentration of detrital minerogenic material in the lake sediments, which is controlled to a large extent by the intensity of the spring snow melt. In contrast, the concentration of ferrimagnetic magnetite (reflected by initial magnetic susceptibility and magnetic hysteresis parameters) is positively correlated to the concentration of organic carbon, which is most likely of an autochthonous origin. This magnetite has magnetic properties that are characteristic of stable single-domain magnetite grains produced by magnetotactic bacteria. The paramagnetic susceptibility record clearly points to a climatic excursion in the early Holocene between 6100± 174 bc and 5700± 167 bc, which can be correlated to an d 18 O excursion (a cold event) in the Greenland ice cores and lake sediments in southern Germany, and also to a short period of increased glacial activity in Scandinavia. The middle Holocene (4000–1760 bc) is characterized by sediment with a low concentration of detrital minerals and a high organic carbon content, whereas the late Holocene (1760 bc–ad 1918) is marked by more frequent and intense periods of detrital sedimentation. |
format |
Article in Journal/Newspaper |
author |
Snowball, Ian Sandgren, Per Petterson, Gunilla |
author_facet |
Snowball, Ian Sandgren, Per Petterson, Gunilla |
author_sort |
Snowball, Ian |
title |
The mineral magnetic properties of an annually laminated Holocene lake-sediment sequence in northern Sweden |
title_short |
The mineral magnetic properties of an annually laminated Holocene lake-sediment sequence in northern Sweden |
title_full |
The mineral magnetic properties of an annually laminated Holocene lake-sediment sequence in northern Sweden |
title_fullStr |
The mineral magnetic properties of an annually laminated Holocene lake-sediment sequence in northern Sweden |
title_full_unstemmed |
The mineral magnetic properties of an annually laminated Holocene lake-sediment sequence in northern Sweden |
title_sort |
mineral magnetic properties of an annually laminated holocene lake-sediment sequence in northern sweden |
publisher |
SAGE Publications |
publishDate |
1999 |
url |
http://dx.doi.org/10.1191/095968399670520633 http://journals.sagepub.com/doi/pdf/10.1191/095968399670520633 |
genre |
Greenland Greenland ice cores Northern Sweden |
genre_facet |
Greenland Greenland ice cores Northern Sweden |
op_source |
The Holocene volume 9, issue 3, page 353-362 ISSN 0959-6836 1477-0911 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1191/095968399670520633 |
container_title |
The Holocene |
container_volume |
9 |
container_issue |
3 |
container_start_page |
353 |
op_container_end_page |
362 |
_version_ |
1797583957716369408 |