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《Journal of Shenyang Agricultural University》 1986-03
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Characteristics and Origin of Brown Loess in Liaoning Province

Hu Tougkuen;Liang Chenghua;Wang Baiyi;Chuei Liangji  
Brown Loess, the loess-like sediment in east and north Liaoning is so called as to differentiate it from the typical Loess. This kind of soil can be tound on the terraced land 20 to 30 meters above river bottom. Judging by its occurranee, it is believed that the soil is composed of wind transibor- ted substance. The Brown Loess in Changtu county probably came from Karaqing Desert of Inner Mongolia, because its particle size in the west is bigger than that in the east. In the west suburb of Dalian, the Brown Loess is derived from the beach sediment nearby, in which the fine particles were blown away by the wind, at a time when the sea level was much lower than it is now. The soil is sandy, and contains some foraminifers which live in the sea. The particle size of the Brown Loess in Kuandian basin is very small, between 0. 02 to 0. 002mm. It is formed by eolian dust. The heavy minerals in Brown Loess are not identical in different places. The amount of slow-releasing potassium in Brown Loess is in proportion to its clay content. This indicates that Illite is the major clay component in the soil.
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2 YANG Yong1 LI Chang-an2 HU Si-hui3 HUO Ju1SUN Hao1 WANG Qiu-liang2(1.China University of Geosciences,Graduate School Wuhan 430074; 2.China University of Geosciences,Faculty of Earth Sciences Wuhan 430074;3.College of Liberal Arts Xinyang Normal University,Xinyang Henan 464000);Grain Size Features and Genesis of the Qingshan "Sand-dune" in Wuhan[J];Acta Sedimentologica Sinica;2008-03
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