Figure 6. Low-frequency cycles forming the Cariaco succession in Hole 1002C (after Sigurdsson, Leckie, Acton, et al., 1997). IA: Bioturbated deposits (silty clay with nannofossils, foraminifers, and diatoms). IB: Clear greenish to yellowish brown clay. IC: Olive-gray to light olive gray clayey bioturbated deposits with nannofossils. ID: Olive-gray clayey bioturbated deposit with nannofossils and diatoms. IE: Greenish gray to dark greenish gray clayey bioturbated deposit with nannofossils. IF: Dark olive green clayey bioturbated deposit with nannofossils and diatoms. IG: Light bluish gray to pale brown clay with nannofossils and silts. IH: Olive-green to olive-gray clayey bioturbated deposit with nannofossils. Limits of the 13 megacycles are marked on the right edge of the laminated intervals column.