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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50186

Title: Millennial mode of variability of sea ice conditions in the Okhotsk Sea during the last glaciation (MIS 4–MIS 2)
Authors: Yuriy P.Vasilenko
Sergey A.Gorbarenko
Aleksandr A.Bosin
Xue-fa Shi
Min-Te Chen
Jian-jun Zou
Yan-guang Liu
Antonina V.Artemova
Elena A.Yanchenko
Mikhail P.Savenko.
Keywords: Okhotsk Sea
Ice-rafted debris
Millennial-scale variation
Ice mode
Wind mode
Date: 2017-10
Issue Date: 2018-09-20T01:42:26Z
Publisher: Quaternary International
Abstract: Abstract: Coarse fraction (CF) content, grain-size distribution, roundness of CF, gravels and pebbles, and examination of surface of pebbles were studied in core LV28-44-4, recovered from the eastern Okhotsk Sea (OS). The age model of the studied core was based on the AMS 14C data, tephrochronology, δ18O benthic foraminifera record, and correlation of peaks of productivity proxies with long-lasted Dansgaard-Oeschger (DO) interstadials. The results show that sea ice was the main transport agent for CF (ice-rafted debris, IRD) in the eastern OS. Published mineralogical studies of clastic material of the OS indicated that the coast of western Kamchatka was the main source of IRD in the eastern OS. We found 19 peaks of IRD, which mostly coincided with DO stadials. The distribution of CF indicates a different pattern of IRD supply during MIS 4, 3, and 2. Comparison of IRD records in the eastern and central parts of the OS allow us to reconstruct millennial changes in ice and wind modes for MIS 4–MIS 2. Significant strengthening of northeastern and eastern winds during DOSs of MIS 3 and of northern and north-western winds during MIS 2 were observed.
Relation: 459 pp.187-200
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50186
Appears in Collections:[應用地球科學研究所] 期刊論文

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