Koeberl et al. take issue with our interpretation of geochemical changes at the end of the Permian in southern China. The main purpose of our paper (Kaiho et al., 2001) is to show the coincidence of remarkable sulfur and strontium isotope excursions, concentration of unusual Fe-Ni-Si-S grains, increases in kaolinite and significant decreases in manganese, phosphorous, calcium, and microfossils (foraminifera) at the end of the Permian in southern China. Our interpretation is that the best explanation for these changes is the impact of an asteroid or a comet into the ocean at the end of the Permian, which...

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