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Abstract

Replying to: H. Zhou et al. Nature 450, doi: 10.1038/nature06408 (2007).

Zhou et al.1 raise the possibility that the titanium (Ti) record at Lake Huguang Maar is controlled by local erosion and runoff to the lake, or through hydrological changes in the lake such as level fluctuations, rather than by changes in the inputs of airborne material2. The authors come to this conclusion by considering the Ti record in isolation. They ignore the redox-sensitive parameters of the S-ratio, total organic-matter content, the Mn/Fe ratio, and magnetic susceptibility records. We believe that their case against our interpretation of the Ti record is weak, and that their interpretation can be ruled out if the other measurements are taken into account2.

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References

  1. Zhou, H., Guan, H. & Chi, B. Records of winter monsoon strength. Nature 450, 10.1038/nature06408 (2007)

  2. Yancheva, G. et al. Influence of the intertropical convergence zone on the East Asian monsoon. Nature 455, 74–77 (2007)

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Authors and Affiliations

  1. GeoForschungsZentrum Potsdam, Telegrafenberg, D-14473, Potsdam, Germany

    Gergana Yancheva, Norbert R. Nowaczyk, Jens Mingram, Peter Dulski, Georg Schettler & Jörg F. W. Negendank

  2. † Institute of Geology and Geophysics, Chinese Academy of Sciences, PO Box 9825, Beijing 100029, China ,

    Jiaqi Liu

  3. Department of Geosciences, Princeton University, Princeton, 08544, New Jersey, USA

    Daniel M. Sigman

  4. Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, 33149, Florida, USA

    Larry C. Peterson

  5. Department of Earth Sciences, Geological Institute, ETH Zürich, CH-8092, Zürich, Switzerland

    Gerald H. Haug

Authors
  1. Gergana Yancheva
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  2. Norbert R. Nowaczyk
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  3. Jens Mingram
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  4. Peter Dulski
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  5. Georg Schettler
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  6. Jörg F. W. Negendank
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  7. Jiaqi Liu
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  8. Daniel M. Sigman
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  9. Larry C. Peterson
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  10. Gerald H. Haug
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Yancheva, G., Nowaczyk, N., Mingram, J. et al. Yancheva et al. reply. Nature 450, E11 (2007). https://doi.org/10.1038/nature06409

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