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Fig. 2 | Earth, Planets and Space

Fig. 2

From: Rock magnetic characterization of ferrimagnetic iron sulfides in gas hydrate-bearing marine sediments at Site C0008, Nankai Trough, Pacific Ocean, off-coast Japan

Fig. 2

a Lithologic log, b low field magnetic susceptibility χ (reported in mass specific form), c natural remanent magnetization (NRM), d ARM/χ, e S-ratio, f IRM0.9/χ, g Mrs/χ, and h DJH variations from 110 to 153 m CSF depth in Hole C0008A. The sediment types (defined by Larrasoaña et al. 2007) are documented. Type 1 samples represent iron oxide-rich samples with possible mixture of iron oxides and sulfides. Type 2 samples are (Ti)-magnetite-rich samples, whereas type 3 samples are iron sulfide-rich samples (greigite and pyrrhotite). The shadowed areas represent intervals where ferrimagnetic iron sulfides (IS) were identified and supported by FORC analyses (see Fig. 6) and SIRM monitoring at low temperature (see Fig. 4). Location of chlorinity anomaly (Cl) is also reported (Expedition 316 Scientists 2009)

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