魏國彥2006-07-252018-06-282006-07-252018-06-282002http://ntur.lib.ntu.edu.tw//handle/246246/11796The 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.application/pdf281992 bytesapplication/pdfzh-TW國立臺灣大學地質科學系暨研究所[SDGs]SDG14reporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/11796/1/902116M002019.pdf