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Paleorainfall Reconstructions from Pedogenic Magnetic Susceptibility Variations in the Chinese Loess and Paleosols

Published online by Cambridge University Press:  20 January 2017

Barbara A. Maher
Affiliation:
School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ
Roy Thompson
Affiliation:
Department of Geology and Geophysics, University of Edinburgh, EH9 3JW, United Kingdom

Abstract

The rock magnetic properties of the Chinese loess and paleosols constitute a unique and sensitive record of East Asian paleoclimate through the Quaternary Period. Systematic variations in the concentration and grain size of the magnetic minerals in these sediments have produced systematic variations in the magnetic susceptibility signal, which can be easily and rapidly measured at many sites across the Loess Plateau. Variations in many other rock magnetic properties can be used to identify the key shifts in ferrimagnetic grain size, but magnetic susceptibility alone is sufficiently sensitive to record stadial and interstadial climate stages, as well as glaciations and interglaciations. Past changes in rainfall and monsoon activity for this region are reconstructed from the susceptibility variations. The susceptibility record is calibrated using the modern relationship between rainfall and pedogenic susceptibility on the Loess Plateau. Our rainfall reconstructions identify enhanced summer monsoonal activity in the Chinese Loess Plateau region in the early Holocene and the last interglaciation. In the presently semiarid western area of the plateau, annual precipitation in interglacial times was up to 80% higher than at present; in the more humid southern and eastern areas, values were up to 20% higher than today's levels. During the last glaciation, precipitation decreased across the entire plateau, typically by ∼25%. The relationship between pedogenic susceptibility, climate, and weathering age was examined over the Northern Hemisphere temperate zone and the observed positive correlation between rainfall and susceptibility indicates that climate, rather than soil age, is the predominant factor that controls pedogenic susceptibility enhancement in loess soils.

Type
Research Article
Copyright
University of Washington

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References

Alekseev, A. O. Kovalevskava, I. S. Morgun, Ye. G., and Samovlova, Y. M. (1989). Magnetic susceptibility of soils in a catena. Soviet Soil Science 21(1), 7886.Google Scholar
Evans, M. E., and Heller, F, (1994). Magnetic enhancement and palaeoclimate: Study of a loess/palaeosol couplet across the loess plateau of China. Geophysical Journal International 117, 257264.Google Scholar
Fassbinder, J. (1992). Naturwissenschaftliche untersuchungen an boenbackterien: neuentdeckte grundlagen fur die magnetische prospektion archaologischer denkmaler in Bayern. Das Archaologische Jahr in Bayern 1991, 211215.Google Scholar
Hallberg, G. R. Wollenhaupt, N. C., and Miller, G. A. (1978). A century of soil development in spoil derived from loess in Iowa. Soil Science Society of America Journal 42, 339343.Google Scholar
Heller, F., and Liu, T.-S. (1986). Palaeoclimatic and sedimentary history from magnetic susceptibility of loess in China. Geophysical Research Letters 13, 11691172.Google Scholar
Heller, F. Shen, C.-D. Beer, J. Liu, X.-M. Liu, T.-S. Bronger, A. Suter, M., and Bonani, G. (1993). Quantitative estimates of pedogenic ferromagnetic mineral formation in Chinese loess and palaeoclimatic implications. Earth and Planetary Science Letters 114, 385390.Google Scholar
Jarvis, D. I. (1993). Pollen evidence of changing Holocene monsoon climate in Sichuan Province, China. Quaternary Research 39, 325337.Google Scholar
Kutzbach, J. E., and Guetter, P. J. (1988). The influence of changing orbital parameters and surface boundary conditions on climate simulations for the past 18,000 years. Journal of Atmospheric Science 43, 17261759.Google Scholar
Liu, X. M. Shaw, J. Liu, T. Heller, F., and Yaun, B. (1992). Magnetic mineralogy of Chinese loess and its significance. Geophysical Journal International 108, 301308.Google Scholar
Lovley, D. R. Stolz, J. F. Nord, G. L., and Phillips, E. J. P. (1987). Anaerobic production of magnetite by a dissimilatory iron-reducing microorganism. Nature 330, 252254.Google Scholar
Lukshin, A. A. Rumyantseva, T. I., and Kovrigo, V. P. (1968). Magnetic susceptibility of the principal soil types of the Udmurt Assr, Soviet Soil Science 3, 8893.Google Scholar
Maher, B. A. (1984). “Origins and Transformation of Magnetic Minerals in Soils.” Ph.D. thesis, University of Liverpool.Google Scholar
Maher, B. A., and Thompson, R. (1991). Mineral magnetic record of the Chinese loess and paleosols. Geology 19 , 36.Google Scholar
Maher, B. A., and Thompson, R. (1992). Palaeoclimatic significance of the mineral magnetic record of the Chinese loess and paleosols. Quaternary Research 37 , 155170.Google Scholar
Maher, B. A. Thompson, R., and Zhou, L.-P. (1994). Spatial and temporal reconstructions of changes in the Asian palaeomonsoon: A new mineral magnetic approach. Earth and Planetary Science Letters 125 , 462471.Google Scholar
Maxted, R. W, (1989). Magnetic mineralogy and sediment yield of lake catchments in the Middle Atlas, Morocco. Ph.D. thesis, University of Wales.Google Scholar
Oldfield, F. Rummery, T. A. Thompson, D. E., and Walling, D. E. (1979). Identification of suspended sediment sources by means of magnetic measurements: some preliminary results. Water Resources Research 15(2), 211218.Google Scholar
Pavich, M. J. Brown, L. Harden, J. Klein, J., and Middleton, R. (1986). Be10 distribution in soils from Merced river terraces, California. Geochemica Cosmochemica 50 , 17271735.Google Scholar
Raymo, M. E. Ruddiman, W. F. Shackleton, N. J., and Oppo, D. W. (1990). Evolution of Atlantic-Pacific δ13C gradients over the last 2.5 m.v. Earth and Planetary Science Letters 97 , 353368.Google Scholar
Singer, M. J., and Fine, P. (1989). Pedogenic factors affecting magnetic susceptibility of Northern California soils. Soil Science Society of America Journal 53 , 11191127.Google Scholar
Singer, M.J. Fine, P. Verosub, K. L., and Chadwick, O A. (1992). Time dependence of magnetic susceptibility of soil chronosequences on the California coast. Quaternary Research 37 , 323332.Google Scholar
Taylor, R. M. Maher, B. A., and Self, P. G. (1987). Magnetite in soils: I. The synthesis of single-domain and superparamagnetic magnetite. Clay Minerals 22, 411422.Google Scholar
Thompson, R., and Clark, R. M. (1993). Quantitative marine sediment core matching using a modified sequence-slotting algorithm. In “Journal of the Geological Society of London Special Publication 70, High Resolution Stratigraphy” (Hailwood, E. A. and Kidd, R. B., Eds.), pp. 3949.CrossRefGoogle Scholar
Tiedemann, R., and Sarnthein, M. (1994). Astronomic timescale for the Pliocene Atlantic δ18O and du.st flux records of Ocean Drilling Program site 659. Paleoceanography 9(4), 619638.Google Scholar
Tipping, R., and Peters, C. (1995). (In press). “Sedimentological characteristics of samples from Kissonerga-Mospbillia, Cyprus.” Edinburgh University Archeology Department Monograph.Google Scholar
Tite, M. S., and Linington, R. E. (1986). The magnetic susceptibility of soils from central and southern Italy. Estratto da Prospeiioni Archeologiche 10 , 2536.Google Scholar
Vadyunina, A. F., and Babanin, V. F. (1972). Magnetic susceptibility of some soils of the USSR. Pockvovedeniye 10. Google Scholar
Vadyunina, A. F., and Smimov, Yu. A. (1978). Use of magnetic susceptibility for the study and mapping of soils. Pockvovedeniye 7 .Google Scholar
Vandenberghe, R. E. De Grave, E. Hus, J. J., and Han, J.-M. (1992). Characterization of Chinese loess and associated palaeosol by Mössbauer spectroscopy. Hyperfine Interactions 70 , 977980.Google Scholar
Wang, Q.-M. (1983). Extension and retraction of Beiyangdian Lake in the past 10,0 years. Geographical Research 2 , 1520.Google Scholar