globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2017.04.017
论文题名:
Sediment provenance variations in the southern Okhotsk Sea over the last 180 ka: Evidence from light and heavy minerals
作者: Wang K.-S.; Shi X.-F.; Zou J.-J.; Kandasamy S.; Gong X.; Wu Y.-H.; Yan Q.-S.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2017
卷: 479
起始页码: 61
结束页码: 70
语种: 英语
英文关键词: Light and heavy minerals ; Okhotsk Sea ; Sea ice ; Sediment provenance ; Volcanic detrital
英文摘要: In this study, we investigate light and heavy minerals in sediment core OS03-1 located at the Academy of Sciences Rise of the southern Okhotsk Sea to determine their distributions and sources over the last 180 ka (thousand years). The sediment mainly consists of terrigenous and volcanic detritus. Ubiquitous drop-stones and volcanic detritus throughout the core and high detrital input suggest that sea ice, driven by wind and Kamchatka Current, was the main transport agent of detrital materials to the southern Okhotsk Sea. The ternary diagram of heavy minerals (hornblende-hypersthene-epidote) shows an expansion of detritus provenance from the eastern in cold periods to the northeastern in warm intervals of the Okhotsk Sea. It mainly relates to the shift of Aleutian Low. Combined with previous records, accumulation rates of quartz indicated a maximum extent but not perennial sea ice coverage during the glacial periods. © 2017 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67815
Appears in Collections:过去全球变化的重建

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作者单位: Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, SOA, Qingdao, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Department of Geological Oceanography and State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China; Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Am AltenHafen 26, Bremerhaven, Germany

Recommended Citation:
Wang K.-S.,Shi X.-F.,Zou J.-J.,et al. Sediment provenance variations in the southern Okhotsk Sea over the last 180 ka: Evidence from light and heavy minerals[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017-01-01,479
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