宁夏长城塬黄土土壤剖面光释光测年研究

Abstract

Abstract: Based on filed survey, the very typical Holocene loess strata were found on the Changchengyuan Loess Tableland in Pengyang, Ningxia Hui Autonomous Region. Seven samples were collected from a Holocene loesspaleosol profile in the study area. The dating of these samples was tested using the optical stimulated luminescence dating. The results show that Malan loess formed around 12.58 ka BP. when it was drought; the transitional loess formed around 11.498 ka BP. when it was relatively warm; the paleosol formed during the periods of 6.731 ka BP. and 2.827 ka BP. when it was very warm; the Holocene loess formed around 1.394 ka BP. when it was drought again. The results are similar to the dating data of MJY profile and ETC profile, so they are reliable.

Key words: loesspaleosol, optical stimulated luminescence dating, stratigraphic chronology, Changchengyuan Loess Tableland, Ningxia

MI Xiao-Jian, HUANG Chun-Chang, ZHOU Ya-Li. Optical Stimulated Luminescence Dating of Loess Profiles in the Changchengyuan Loess Tableland[J]., 2013, 30(2): 231-235.

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Optical Stimulated Luminescence Dating of Loess Profiles in the Changchengyuan Loess Tableland

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