Fig. 5

Morphology and grain size of magnetofossils with respect to magnetic domain state. Samples are depths of a 1.00 m, b 1.14 m, c 1.18 m, and d 1.23 m in the core. Magnetofossils are categorized into the three groups based on their morphology: bullet shaped (red), elongated (blue), and equant (green). Bold dashed curves indicate the maximum single-domain (SD) region for chains of magnetite particles with magnetostatic interactions after Muxworthy and Williams (2009)