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STUDY ON LOESS GRANULARITY AND SEDIMENTARY ENVIRONMENT AT QIDINGSHAN IN DALIAN

Li Li

Open publisher page 2 citations

Abstract

A high solution analysis was carried out on loess particle at Qidingshan through screen method via SA-CP3(a granularity analysis instrument made in Japan) and TL chronology,with the results that the loess granularity is dominantly coarse,coarse silt 4~6  about 26.39~48.33%,a less clay(0.05~2.44%).At Malan,the loess granularity concentrates on two grades,2~4  and 4~6 ,with coarse silt slightly more than fine sand. At Lishi,the loess granularity is dominantly 4~6 .This paper,based on a comprehensive statistical analysis on sediment granularity parameters,indicates that there has been a big difference with inland winding loess since the middle Pleistocene.The loess sediment in Qidingshan is derived primary from a nearby source and secondarily from far source.

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What this paper is about

A high solution analysis was carried out on loess particle at Qidingshan through screen method via SA-CP3(a granularity analysis instrument made in Japan) and TL chronology,with the results that the loess granularity is dominantly coarse,coarse silt 4~6  about 26.39~48.33%,a less clay(0.05~2.44%).At Malan,the loess granularity concentrates on two grades,2~4  and 4~6 ,with coarse silt slightly more than fine sand. At Lishi,the loess granularity is dominantly 4~6 .This paper,based on a comprehensive statistical analysis on sediment granularity parameters,indicates that there has been a big difference with inland winding loess since the middle Pleistocene.The loess sediment in Qidingshan is derived primary from a nearby source and secondarily from far source.

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Available abstract

A high solution analysis was carried out on loess particle at Qidingshan through screen method via SA-CP3(a granularity analysis instrument made in Japan) and TL chronology,with the results that the loess granularity is dominantly coarse,coarse silt 4~6  about 26.39~48.33%,a less clay(0.05~2.44%).At Malan,the loess granularity concentrates on two grades,2~4  and 4~6 ,with coarse silt slightly more than fine sand. At Lishi,the loess granularity is dominantly 4~6 .This paper,based on a comprehensive statistical analysis on sediment granularity parameters,indicates that there has been a big difference with inland winding loess since the middle Pleistocene.The loess sediment in Qidingshan is derived primary from a nearby source and secondarily from far source.

Key concepts: Loess, Granularity, Silt, Geology, Sediment, Geomorphology, Sedimentary rock, Detritus

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