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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40487

Title: Millennial-scale alkenone sea surface temperature changes in the northern South China Sea during the past 45,000 years (MD972146)
Authors: Yusuke Yokoyama
Da-Cheng Lin
Min-Te Chen
Masanobu Yamamoto
Contributors: 國立臺灣海洋大學:應用地球科學研究所
Keywords: South China Sea
Millennial-scale climate change
Alkenone
Sea surface temperature
Date: 2014-05
Issue Date: 2017-01-19T05:53:01Z
Publisher: Quaternary International
Abstract: Abstract: Millennial-scale climate changes are well-expressed in Greenland ice core and North Atlantic marine records. The timing and the amplitude of the millennial-scale changes outside Greenland and the North Atlantic are poorly known, mainly due to the lack of high quality climatic archives with precise constraints of numerical dating. Here, we report a new, high-resolution AMS 14C dated alkenone sea surface temperature (SST) record of the last 45,000 years from a marine sediment core (MD972146) retrieved from the northern South China Sea (SCS). The SST record shows millennial-scale oscillations during the intervals of since the Last Glacial Maximum (LGM, ∼21,000 BP) to the present, and ∼34–45 ka, that are nearly in-phase with those from the Northern Hemisphere (NH). SST oscillations during ∼21–34 ka do not match well with the NH patterns, implying that a dominance of “non-NH” mechanisms may have governed the SST changes outside the NH high latitudes during the particular time interval. The “non-NH” climatic pattern during ∼21–34 ka has been only reported from a SST record from the Okinawa Trough sediments (MD012404) and a grain size record from Chinese loess sequences (Gulang), but not from the other SCS records which had been investigated using lower resolution sampling and age dating.
Relation: 333
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40487
Appears in Collections:[應用地球科學研究所] 期刊論文

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