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Figure F19. Photomicrographs of representative fields of view of a light–dark lamination couplet pair in Section 318-U1357A-15H-7. Green = open-ocean species (Crosta et al., 2005b), blue = sea ice–associated species (Armand et al., 2005). A. Light lamina from 67 cm (138.65 mbsf), where open-ocean species dominate. B. Dark lamina from 71 cm (138.69 mbsf), where sea ice–associated species dominate.

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