Skip to main content Accessibility help
×
Home

Pedosedimentary Reconstruction of a Thick Loess-Paleosol Sequence near Lanzhou in North-Central China

  • Rob A. Kemp (a1), Edward Derbyshire (a1) (a2), Meng Xingmin (a1) (a2), Chen Fahu (a3) and Pan Baotian (a3)...

Abstract

A 38-m well section near Lanzhou at the semiarid western margin of the Loess Plateau, China, contained a continuous, high-resolution loess-paleosol sequence spanning the last 130,000 yr. Depth functions of micromorphological features, magnetic susceptibility, calcium carbonate, organic carbon, and median grain size provide the basis for pedosedimentary and associated paleoenvironmental reconstructions of three paleosol complexes (S1, Sm, and S0). Each pedosedimentary stage reflects the interaction of changing intensities of controlling monsoonal forces. Three periods of reduced dust inputs and enhanced pedogenic activity, notably bioturbation and weak leaching, can be identified from within the S1 pedocomplex. These "soil-forming intervals" were separated by phases of varying land surface instability characterized by arid dust deposition, semiarid accretionary pedogenesis, water reworking, and crust formation, or even freeze-thaw modification. The Sm pedocomplex represents an interval of relatively rapid dust accumulation with only minimal syndepositional modification and minor pedogenic alteration at ephemeral land surfaces. The S0 pedocomplex is clearly more pedogenically developed, although erosion, reworking, and mixing by water have partly homogenized the property depth functions.

Copyright

References

Hide All
An, Z. H. Liu, T. S. Lu, Y. C. Porter, S. C. Kukla, G. Wu, X. H., and Hua, Y. M. (1990). The long-term paleomonsoon variation recorded by the loess-paleosol sequence in central China. Quaternary International 7/8, 9195.
An, Z. S. Kukla, G. J. Porter, S. C., and Xiao, J. (1991a). Magnetic susceptibility evidence of monsoon variation on the Loess Plateau of Central China during the last 130,000 years. Quaternary Research 36, 2936.
An, Z. S. Wu, X. H. Wang, P. X. Wang, S. M. Dong, G. R. Sun, X. J. Zhang, D. E.,Lu, Y. C. Zheng, S. H., and Zao, S. L. (1991b). Changes in the monsoon and associated environmental changes in China since the last interglacial. In “Loess, Environment and Global Change” (Liu, T. S., Ed.), pp. 129. Science Press, Beijing.
An, Z. S. Porter, S. C. Zhou, W. J. Lu, Y. C. Donahue, D. J. Head, M. J. Wu, X. H.. Ren, J. Z., and Zheng, H. B. (1993). Episode of strengthened summer monsoon climate of Younger Dryas age on the Loess Plateau of Central China. Quaternary Research 39, 4554.
Bascomb, C. L. (1982). Physical and chemical analysis of < 2 mm samples. Soil Survey Technical Monograph 6, 1441.
Bresson, L-M., and Boiffin, J. (1990). Morphological characterization of soil crust development stages on an experimental field. Geoderma 47, 301325.
Bronger, A., and Heinkele, Th. (1989). Micromorphology and genesis of paleosols in the Luochuan loess section, China: Pedostratigraphic and environmental implications. Geoderma 45, 123143.
Bullock, P. FedorofF, N. Jongerius, A. Stoops, G., and Tursina, T. (1985). “Handbook for Soil Thin Section Description.” Waine Research, Wolverhampton.
Chen, F. H. Li, J. J., and Zhang, W. X. (1991). Loess stratigraphy of the Lanzhou profile and its comparison with deep-sea sediment and ice core record. GeoJournal 24, 201209.
Derbyshire, E. Keen, D. H. Kemp, R. A. Shaw, J., and Wintle, A. G. (1994). Loess-paleosol sequences as recorders of paleoclimatic variation during the last glacial-interglacial cycle in central China. In “Paleoclimate of the Last Glacial-interglacial Cycle” (Funnell, B. M. and Kay, R. L. F., Eds.), Vol. 94/2, pp. 2732. Natural Environment Research Council Special Pub., Swindon.
Derbyshire, E. Wang, J. T. Jin, Z. X. Billard, A. Egels, Y. Kasser, M. Jones, D. K. C. Muxart, T., and Owen, L. (1991). Landslides in the Gansu loess of China. In “Loess” (Okuda, S. Rapp, A., and Zhang, L. Y., Eds.). Catena Supplement 20, 119145.
Ding, Z. L. Rutter, N., and Liu, T. S. (1993). Pedostratigraphy of Chinese loess deposits and climatic cycles in the last 2.5 Myr. Catena 20, 7391.
Guo, Z. T., and Fedoroff, N. (1991). Paleoclimatic and stratigraphic implications of the SI paleosol in the loess sequence in China. In“Loess, Environment and Global Change” (Liu, T. S., Ed.), pp. 187198. Science Press, Beijing.
Guo, Z. T. Fedoroff, N., and An, Z. H. (1991). Genetic types of the Holocene soil and the Pleistocene paleosols in the Xifeng loess section in central China. In “Loess, Environment and Global Change” (Liu, T. S., Ed.), pp. 93111. Science Press, Beijing.
Herrero-Bervera, E. Helsley, C. E. Hammond, R., and Chitwood, L. A, (1989). A possible lacustrine paleomagnetic record of the Blake episode from Pringle Falls, Oregon, USA. Physics of the Earth and Planetary Interiors 56, 112113.
Kemp, R. A. (in press). Distribution and genesis of calcitic pedofeatures within a rapidly aggrading loess-paleosol sequence in China. Geoderma.
Kemp, R. A. Jerz, H. Grottenthaler, W., and Preece, R. (1994). Pedosedimentarv fabrics of soils within loess and colluvium in southern England and Germany. In “Soil Micromorphology” (Ringrose-Voase, A., and Humphries, G., Eds.), pp. 207219. Elsevier, Amsterdam.
Kukla, G. and An, Z. S. (1989). Loess stratigraphy in central China. Palaeogeography, Palaeoclimatology, Palaeoecology 72, 203225.
Lee, J. A., and Kemp, R. A. (1992). “Thin Sections of Unconsolidated Sediments and Soils: A Recipe.” Centre for Environmental Analysis and Management Technical Report No. 2, Department of Geography, Royal Holloway, University of London.
Li, J. J. Zhu, J. J. Kang, J. C. Chen, F. H. Fang, X. M. Mu, D. F. Cao, J. X. Tang, L. Y. Zhang, Y. T., and Pan, B. T. (1992). The comparison of Lanzhou loess profile with Vostok ice core in Antarctica over the last glaciation cycle. Science in China 35, 476487.
Liu, T. S. Zhang, S. X., and Han, J. M. (1987). Stratigraphy and paleoenvironmental changes in the loess of central China. Quaternary Science Reviews 6, 489501.
Liu, X. M. Liu, T. S. Shaw, J. Heller, F. Xu, T. C., and Yuan, B. Y. (1991). Paleomagnetic and paleoclimatic studies of Chinese loess. In“Loess, Environment and Global Change” (Liu, T. S., Ed.), pp. 6181. Science Press, Beijing.
Mucher, H. J., and de Ploey, J. (1977). Experimental and micromorphological investigation of erosion and redeposition of loess by water. Earth Surface Processes and Landforms 2, 117124.
Mucher, H. J., and Vreeken, W. J. (1981). (Re)deposition of loess in southern Limbourg, the Netherlands. 2. Micromorphology of the lower silt loam complex and comparison with deposits produced under laboratory conditions. Earth Surface Processes and Landforms 6, 355363.
Porter, S. C. An, Z. S., and Zheng, H. B. (1992). Cyclic Quaternary alluviation and terracing in a nonglaciated drainage basin on the north flank of the Qinling Shan, central China. Quaternary Research 38, 157169.
Rolph, T. C. Shaw, J. Derbyshire, E., and Wang, J. T. (1993). The magnetic mineralogy of a loess section near Lanzhou, China. In “The Dynamics and Environmental Contexts of Aeolian Sedimentary Systems” (Pye, K., Ed.). Geological Society Special Publication, London 72, 311323.
Rutter, N. (1992). Presidential address, XIII INQUA Congress 1991: Chinese loess and global change. Quaternary Science Renews 11, 275281.
Rutter, N., and Ding, Z. L. (1993). Paleoclimates and monsoon variations interpreted from micromorphogenic features of the Baoji paleosols, China. Quaternary Science Reviews 12, 853862.
Van Vliet-Lanoe, B. Coutard, J-P., and Pissart, A. (1984). Structures caused by repeated freezing and thawing in various loamy sediments: A comparison of active, fossil and experimental data. Earth Surface Processes and Landforms 9, 553565.
Vepraskas, M, J. (1992). “Redoximorphic Features for Identifying Aquic Conditions.” North Carolina Agricultural Research Service Technical Bulletin No. 301, North Carolina State University, Raleigh.

Related content

Powered by UNSILO

Pedosedimentary Reconstruction of a Thick Loess-Paleosol Sequence near Lanzhou in North-Central China

  • Rob A. Kemp (a1), Edward Derbyshire (a1) (a2), Meng Xingmin (a1) (a2), Chen Fahu (a3) and Pan Baotian (a3)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.