Figure F16. A. Isothermal remanent magnetization (IRM) and backfield acquisition curves for representative discrete samples from lithostratigraphic Unit I of Site 1121. Remanence does not become saturated until 200-500 mT, and B_cr is <50 mT for all samples. B. Isothermal remanent magnetization (IRM) and backfield acquisition curves for representative discrete samples from Unit II of Site 1121. Remanence does not become saturated until 500-1000 mT, and B_cr is between 75 and 100 mT for all samples.