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Distribution characteristics of 7Be, 210Po and 210Pb in the surface snow of the Arctic Ocean
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Chuyue Liu1, 2, Qiangqiang Zhong2, Dekun Huang2, *, Suiyuan Chen2, Hao Wang1, 2, Tao Yu1, 2, *
Haiyang Xuebao | 2021, 43(11) : 70 - 76
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Haiyang Xuebao | 2021, 43(11): 70-76
Article
Distribution characteristics of 7Be, 210Po and 210Pb in the surface snow of the Arctic Ocean
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Chuyue Liu1, 2, Qiangqiang Zhong2, Dekun Huang2, *, Suiyuan Chen2, Hao Wang1, 2, Tao Yu1, 2, *
Affiliations
  • 1College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
  • 2Laboratory of Marine Isotopic Technology and Environmental Risk Assessment, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
Published: 2021-11-25 doi: 10.12284/hyxb2021138
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The radionuclides 7Be, 210Po and 210Pb transported by the atmosphere can be used as important tracers for studying the material deposition flux of the Arctic Ocean’s atmosphere, modern ocean sedimentation and the transport of materials into the sea ice. They have been widely used in the study of air mass movement, soil erosion, and particle circulation processes in water systems. This paper reports the activities of 7Be, 210Po and 210Pb in the surface snow of the high-latitude ice floes of the Arctic Ocean in 2018. The activity concentrations of 7Be, 210Po and 210Pb are 33.6−632.68 mBq/L, 36.2−87.5 mBq/L, and 30.9−194.49 mBq/L, respectively. The activity concentrations of 7Be and 210Pb in the surface snow of the Arctic Ocean are lower than those in the mid-latitude continental areas. The results show that the activity concentrations of 7Be in snow increased with the increase of latitude. The activity ratio of 210Po/210Pb ranged from 0.70 to 1.48 (with an average of 0.93), 210Po is almost in equilibrium with 210Pb. It indicates that the age of the surface snow is “older”.

Arctic Ocean  /  snow  /  7Be  /  210Po  /  210Pb  /  atmospheric deposition
Chuyue Liu, Qiangqiang Zhong, Dekun Huang, Suiyuan Chen, Hao Wang, Tao Yu. Distribution characteristics of 7Be, 210Po and 210Pb in the surface snow of the Arctic Ocean[J]. Haiyang Xuebao, 2021 , 43 (11) : 70 -76 . DOI: 10.12284/hyxb2021138
Year 2021 volume 43 Issue 11
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doi: 10.12284/hyxb2021138
  • Receive Date:2021-04-27
  • Online Date:2026-02-26
  • Published:2021-11-25
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  • Received:2021-04-27
  • Revised:2021-05-31
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    1College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
    2Laboratory of Marine Isotopic Technology and Environmental Risk Assessment, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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