Sr isotopic composition of suspended particulate (SPM) of East Siberian rivers- Sediment Transport to the Arctic Ocean
In order to determine the paths of sediment transport to the Laptev Sea and on to the Arctic Ocean we measured 87Sr/86Sr ratios and Sr concentrations of suspended particulate material (SPM) of the Lena, Yana, and Khatanga rivers. The SPM exported to the Laptev Sea by the Lena river is characterized...
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INSTAAR, Institute of Arctic and Alpine Research
1997
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Online Access: | https://oceanrep.geomar.de/id/eprint/65/ https://oceanrep.geomar.de/id/eprint/65/1/Rachold.pdf https://doi.org/10.2307/1551990 |
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ftoceanrep:oai:oceanrep.geomar.de:65 2023-05-15T14:14:40+02:00 Sr isotopic composition of suspended particulate (SPM) of East Siberian rivers- Sediment Transport to the Arctic Ocean Rachold, V. Eisenhauer, Anton Hubberten, H.- W. Hansen, B. T. Meyer, H. 1997 text https://oceanrep.geomar.de/id/eprint/65/ https://oceanrep.geomar.de/id/eprint/65/1/Rachold.pdf https://doi.org/10.2307/1551990 en eng INSTAAR, Institute of Arctic and Alpine Research https://oceanrep.geomar.de/id/eprint/65/1/Rachold.pdf Rachold, V., Eisenhauer, A. , Hubberten, H. W., Hansen, B. T. and Meyer, H. (1997) Sr isotopic composition of suspended particulate (SPM) of East Siberian rivers- Sediment Transport to the Arctic Ocean. Arctic, Antarctic, and Alpine Research, 29 (4). pp. 422-429. DOI 10.2307/1551990 <https://doi.org/10.2307/1551990>. doi:10.2307/1551990 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 1997 ftoceanrep https://doi.org/10.2307/1551990 2023-04-07T14:41:17Z In order to determine the paths of sediment transport to the Laptev Sea and on to the Arctic Ocean we measured 87Sr/86Sr ratios and Sr concentrations of suspended particulate material (SPM) of the Lena, Yana, and Khatanga rivers. The SPM exported to the Laptev Sea by the Lena river is characterized by an average 87Sr/86Sr ratio of 0.7165 ± 0.0005 and a Sr concentration of 200 ± 20 ppm measured at the northernmost stations. The average 87Sr/86Sr ratio (0.7141 ± 0.0002) and Sr concentration (152 ± 5 ppm) of the Yana river SPM can clearly be distinguished from those of the Lena river SPM. Sr isotopic ratios (0.7102 ± 0.0002) and Sr concentrations (181 ± 5 ppm) of the Khatanga river SPM are strongly influenced by volcanic rocks of the Siberian Trap that are very common in the drainage area. Variations in Sr concentrations and isotopic ratios along the Yana and Khatanga rivers result from mixing of material supplied by individual tributaries. The Lena river SPM, on the other hand, exhibits variations which cannot be explained by simple mixing of tributary sediments. Various processes, such as dissolution/absorption and grain-size separation, are considered. The Sr isotopic ratio of each river SPM can be related to isotope data of Laptev Sea surface sediments and sediments incorporated into sea ice. Both indicate that the 87Sr/86Sr ratios can be applied to identify the distribution of riverine material in the Laptev Sea and the Arctic Ocean. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Arctic Arctic Ocean khatanga laptev Laptev Sea lena river Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Arctic Ocean Laptev Sea Yana River ENVELOPE(134.625,134.625,67.662,67.662) Arctic and Alpine Research 29 4 422 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
In order to determine the paths of sediment transport to the Laptev Sea and on to the Arctic Ocean we measured 87Sr/86Sr ratios and Sr concentrations of suspended particulate material (SPM) of the Lena, Yana, and Khatanga rivers. The SPM exported to the Laptev Sea by the Lena river is characterized by an average 87Sr/86Sr ratio of 0.7165 ± 0.0005 and a Sr concentration of 200 ± 20 ppm measured at the northernmost stations. The average 87Sr/86Sr ratio (0.7141 ± 0.0002) and Sr concentration (152 ± 5 ppm) of the Yana river SPM can clearly be distinguished from those of the Lena river SPM. Sr isotopic ratios (0.7102 ± 0.0002) and Sr concentrations (181 ± 5 ppm) of the Khatanga river SPM are strongly influenced by volcanic rocks of the Siberian Trap that are very common in the drainage area. Variations in Sr concentrations and isotopic ratios along the Yana and Khatanga rivers result from mixing of material supplied by individual tributaries. The Lena river SPM, on the other hand, exhibits variations which cannot be explained by simple mixing of tributary sediments. Various processes, such as dissolution/absorption and grain-size separation, are considered. The Sr isotopic ratio of each river SPM can be related to isotope data of Laptev Sea surface sediments and sediments incorporated into sea ice. Both indicate that the 87Sr/86Sr ratios can be applied to identify the distribution of riverine material in the Laptev Sea and the Arctic Ocean. |
format |
Article in Journal/Newspaper |
author |
Rachold, V. Eisenhauer, Anton Hubberten, H.- W. Hansen, B. T. Meyer, H. |
spellingShingle |
Rachold, V. Eisenhauer, Anton Hubberten, H.- W. Hansen, B. T. Meyer, H. Sr isotopic composition of suspended particulate (SPM) of East Siberian rivers- Sediment Transport to the Arctic Ocean |
author_facet |
Rachold, V. Eisenhauer, Anton Hubberten, H.- W. Hansen, B. T. Meyer, H. |
author_sort |
Rachold, V. |
title |
Sr isotopic composition of suspended particulate (SPM) of East Siberian rivers- Sediment Transport to the Arctic Ocean |
title_short |
Sr isotopic composition of suspended particulate (SPM) of East Siberian rivers- Sediment Transport to the Arctic Ocean |
title_full |
Sr isotopic composition of suspended particulate (SPM) of East Siberian rivers- Sediment Transport to the Arctic Ocean |
title_fullStr |
Sr isotopic composition of suspended particulate (SPM) of East Siberian rivers- Sediment Transport to the Arctic Ocean |
title_full_unstemmed |
Sr isotopic composition of suspended particulate (SPM) of East Siberian rivers- Sediment Transport to the Arctic Ocean |
title_sort |
sr isotopic composition of suspended particulate (spm) of east siberian rivers- sediment transport to the arctic ocean |
publisher |
INSTAAR, Institute of Arctic and Alpine Research |
publishDate |
1997 |
url |
https://oceanrep.geomar.de/id/eprint/65/ https://oceanrep.geomar.de/id/eprint/65/1/Rachold.pdf https://doi.org/10.2307/1551990 |
long_lat |
ENVELOPE(134.625,134.625,67.662,67.662) |
geographic |
Arctic Arctic Ocean Laptev Sea Yana River |
geographic_facet |
Arctic Arctic Ocean Laptev Sea Yana River |
genre |
Antarctic and Alpine Research Arctic Arctic Arctic Ocean khatanga laptev Laptev Sea lena river Sea ice |
genre_facet |
Antarctic and Alpine Research Arctic Arctic Arctic Ocean khatanga laptev Laptev Sea lena river Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/65/1/Rachold.pdf Rachold, V., Eisenhauer, A. , Hubberten, H. W., Hansen, B. T. and Meyer, H. (1997) Sr isotopic composition of suspended particulate (SPM) of East Siberian rivers- Sediment Transport to the Arctic Ocean. Arctic, Antarctic, and Alpine Research, 29 (4). pp. 422-429. DOI 10.2307/1551990 <https://doi.org/10.2307/1551990>. doi:10.2307/1551990 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.2307/1551990 |
container_title |
Arctic and Alpine Research |
container_volume |
29 |
container_issue |
4 |
container_start_page |
422 |
_version_ |
1766287005190193152 |