Quaternary of Loess Plateau in China

黄土高原第四纪

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Author: Sun Jianzhong
Language: Chinese
1999; Hardcover;185x260mm;241 pages+6 plates

This book mainly deals with the Quaternary chronology, stratigraphy, palaeoclimate and palaeoenvironment of the Loess Plateau in China. The question of water and soil conservation and collapsibility of loess are also discussed. Several modern chronological methods have been used such as palaeomagnetic, electron spin resonance (ESR) , thermoluminescense (TL) and 14C, the authors first proposed that the lower boundary of loess strata went into Gauss chron, with the age of about 2.5-2.6 Ma B.P. The lower boundary of Quaternary has been put at 2.48 Ma B.P. The controversy of " Nihewan Bed" and " Sanmen Formation" has been clarified. An entirely new stratigraphical table of the Loess Plateau has been established. The experiment shows that total iron oxide content andδ13C of CaCO3 in loess strata are good climatic indicators. The curves of total iron oxide andδ13C are well correlated with the deep sea oxygen isotopic curve. Pollen-spore analysis has been done in several famous archaeological ruins, Such as Banpo Neolithic ruins in Xi'an, palaeolithic ruins of Dingcun Man, Dali Man, Xiujiayao Man and Hetoa Man; and Shuidonggou neo-palaeolithic ruins. The results help us to make further classification of the Last Glacial Stage and Holocene.By treating the loess samples with hydrochloric acid, getting rid of all soluble salts, we know that the collapsibility of loess not only no disappeared, but intensively increased. It fully proved that the water-irresisting connection between the grains in loess is mainly of clayey minerals.


Table of Contents

1. Quaternary chrono-stratigraphical research of the loess Plateau
2. Classification and correlation of Quaternary strata in Loess Plateau
3. Paleosols and weathering crusts in loess strata
4. Palaeoclimatic records in loess strata
5. Natural environment of Dali Man and Dingcun Man
6. Palaeoenvironment of the Last Glacial Stage in Loess Plteau
7. Palaeoenvironment of Holocene in Loess Plateau
8. Erosion of loess and its conservation
9. Research on collapsibility of loess

 


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