Figure F4. Depth distribution of total clay minerals (Expedition 333 Scientists, 2012b; also see the “Site C0021” chapter [Strasser et al., 2014b]), smectite in bulk sediment, illite in bulk sediment, illite/smectite (I/S) expandability, and illite crystallinity index. Results are from the clay-size fraction of core samples from Sites C0018 (solid symbols) and C0021 (open symbols) (see the “Expedition 338 summary” chapter [Strasser et al., 2014a]). Boundaries for anchizone and epizone metamorphism are from Warr and Mählmann (2015).
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