Geographical variation in Sr isotopic ratio of cryoconite on Arctic glaciers
Sr stable isotopic ratios (87Sr/86Sr) in cryoconite on glaciers in Arctic region were analyzed to identify sources of constituents of the cryoconite. The cryoconite samples that we analyzed were collected from glaciers in Canada (Sveldrup, Greenshield and Coronation Glaciers) and Svalbard (Foxfonna...
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ftnipr:oai:nipr.repo.nii.ac.jp:00011666 2023-07-30T04:01:04+02:00 Geographical variation in Sr isotopic ratio of cryoconite on Arctic glaciers 本田彩奈 竹内 望 永塚 尚子 中野 孝教 Honda Ayana Takeuchi Nozomu Nagatsuka Naoko Nakano Takanori 2016-04-11 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=11666 http://id.nii.ac.jp/1291/00011613/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=11666&item_no=1&attribute_id=16&file_no=1 en eng https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=11666 http://id.nii.ac.jp/1291/00011613/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=11666&item_no=1&attribute_id=16&file_no=1 2013-11-15 Presentation 2016 ftnipr 2023-07-15T19:41:39Z Sr stable isotopic ratios (87Sr/86Sr) in cryoconite on glaciers in Arctic region were analyzed to identify sources of constituents of the cryoconite. The cryoconite samples that we analyzed were collected from glaciers in Canada (Sveldrup, Greenshield and Coronation Glaciers) and Svalbard (Foxfonna and Longyearbreen Glaciers). The results were also compared with the values of Greenland and Alaska, which were measured in previous studies. The isotopic ratio significantly varied among glaciers. The isotopic ratio of silicate mineral fraction was highest (above 0.74) in the cryoconite of Penny ice cap of Canada, while middium in those in Devon, Svalbard, and Greenland glaciers, and lower in those of an Alaskan glacier. This variation suggest that sources of mineral particles of cryoconite are not unique in those Arctic glaciers, but are different among geographical locations. 第4回極域科学シンポジウム個別セッション:[OM] 気水圏11月15日(金) 統計数理研究所 3階セミナー室1(D305) Conference Object Arctic glacier glacier glacier glacier* glaciers Greenland Ice cap Longyearbreen Penny Ice Cap Svalbard Alaska National Institute of Polar Research Repository, Japan Arctic Svalbard Canada Greenland Penny Ice Cap ENVELOPE(-66.214,-66.214,67.284,67.284) Longyearbreen ENVELOPE(15.517,15.517,78.183,78.183) Foxfonna ENVELOPE(16.200,16.200,78.133,78.133) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
Sr stable isotopic ratios (87Sr/86Sr) in cryoconite on glaciers in Arctic region were analyzed to identify sources of constituents of the cryoconite. The cryoconite samples that we analyzed were collected from glaciers in Canada (Sveldrup, Greenshield and Coronation Glaciers) and Svalbard (Foxfonna and Longyearbreen Glaciers). The results were also compared with the values of Greenland and Alaska, which were measured in previous studies. The isotopic ratio significantly varied among glaciers. The isotopic ratio of silicate mineral fraction was highest (above 0.74) in the cryoconite of Penny ice cap of Canada, while middium in those in Devon, Svalbard, and Greenland glaciers, and lower in those of an Alaskan glacier. This variation suggest that sources of mineral particles of cryoconite are not unique in those Arctic glaciers, but are different among geographical locations. 第4回極域科学シンポジウム個別セッション:[OM] 気水圏11月15日(金) 統計数理研究所 3階セミナー室1(D305) |
format |
Conference Object |
author |
本田彩奈 竹内 望 永塚 尚子 中野 孝教 Honda Ayana Takeuchi Nozomu Nagatsuka Naoko Nakano Takanori |
spellingShingle |
本田彩奈 竹内 望 永塚 尚子 中野 孝教 Honda Ayana Takeuchi Nozomu Nagatsuka Naoko Nakano Takanori Geographical variation in Sr isotopic ratio of cryoconite on Arctic glaciers |
author_facet |
本田彩奈 竹内 望 永塚 尚子 中野 孝教 Honda Ayana Takeuchi Nozomu Nagatsuka Naoko Nakano Takanori |
author_sort |
本田彩奈 |
title |
Geographical variation in Sr isotopic ratio of cryoconite on Arctic glaciers |
title_short |
Geographical variation in Sr isotopic ratio of cryoconite on Arctic glaciers |
title_full |
Geographical variation in Sr isotopic ratio of cryoconite on Arctic glaciers |
title_fullStr |
Geographical variation in Sr isotopic ratio of cryoconite on Arctic glaciers |
title_full_unstemmed |
Geographical variation in Sr isotopic ratio of cryoconite on Arctic glaciers |
title_sort |
geographical variation in sr isotopic ratio of cryoconite on arctic glaciers |
publishDate |
2016 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=11666 http://id.nii.ac.jp/1291/00011613/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=11666&item_no=1&attribute_id=16&file_no=1 |
long_lat |
ENVELOPE(-66.214,-66.214,67.284,67.284) ENVELOPE(15.517,15.517,78.183,78.183) ENVELOPE(16.200,16.200,78.133,78.133) |
geographic |
Arctic Svalbard Canada Greenland Penny Ice Cap Longyearbreen Foxfonna |
geographic_facet |
Arctic Svalbard Canada Greenland Penny Ice Cap Longyearbreen Foxfonna |
genre |
Arctic glacier glacier glacier glacier* glaciers Greenland Ice cap Longyearbreen Penny Ice Cap Svalbard Alaska |
genre_facet |
Arctic glacier glacier glacier glacier* glaciers Greenland Ice cap Longyearbreen Penny Ice Cap Svalbard Alaska |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=11666 http://id.nii.ac.jp/1291/00011613/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=11666&item_no=1&attribute_id=16&file_no=1 2013-11-15 |
_version_ |
1772811804884336640 |