國際海洋古全球變遷研究─(子計畫三)利用浮游有孔蟲殼體鎂/鈣比值重建南中國海過去三萬年來之古海表溫(I)
Other Title
History of East Asian Summer Monsoon Climates During the Late Quaternary:
Land-Sea Connection
Land-Sea Connection
Date Issued
2002
Date
2002
Author(s)
DOI
902116M002019
Abstract
The East Asian monsoon is a system in which seasonality of wind directions,
temperature and precipitation show strong linkage between low and middle latitudes,
as well as between land and sea. The magnetic susceptibility of the paleosol-loess
sequence of Louchuan in the central Chinese Plateau fluctuates in concert with a
newly-derived maritime summer monsoon index of the last 870-kyrs from the South
China Sea, attesting that continental wet periods are associated with stronger summer
monsoons during the interglacial stages. Notably, paleosol units S3 and S5 spanned
longer in time than the conventionally defined marine oxygen isotope stages (MIS) 9
and 15, respectively. High values of maritime summer monsoon index during MIS 9 –
8.5 (340-280 ka) and MIS 15-13 (620-480 ka) can account for the development of
thick paleosols of S3 and S5.
SDGs
Publisher
臺北市：國立臺灣大學地質科學系暨研究所
Type
report
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