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Journal of Palaeogeography
Fig. 18 | Journal of Palaeogeography

Fig. 18

From: The turbidite-contourite-tidalite-baroclinite-hybridite problem: orthodoxy vs. empirical evidence behind the “Bouma Sequence”

Fig. 18

a Sedimentological log showing alternation of sand (lithofacies 3) and mudstone (lithofacies 4) intervals with continuous presence of double mud layers (DML) and discrete ripple chains. Note muddy debrite facies (Lithofacies 2) near the bottom. Wentworth grain-size classes: C = clay; S = silt; VFS = very fine sand; FS = fine sand; MS = medium sand; b; Lithofacies 3 core photograph showing rhythmic bedding (rhythmites) and double mud layers (DML, arrows) in sand. N = neap (thin) bundle; S = spring (thick) bundle. Note that one could designate ripple chains as Tc, DML intervals as Tb and the massive sand unit (between scale divisions 2 and 4 cm) as Ta using the Bouma Sequence; however, Shanmugam et al. (2009) did not. Source: Core photograph from Shanmugam et al. (2009), with permission from SEPM

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