Table 2. 14C AMS datings for sediment core T89-24@en

Planktic foraminifera data from three cores of the Angola-Zaire margin are used to reconstruct palaeopositions of the Angola-Benguela Front (ABF) between the warm Angola Current and cold Benguela Current for the last 180,000 years. Strong northward shifts occurred in stages 4 and 3.3-3.1, but not in stages 6 and 2. The Benguela Current did not penetrate into the Gulf of Guinea. The southernmost positions, not far from the present one, were occupied in stages 5.5 and 1, but also in stage 6.3. The record of the shifts contains significant variance in the 23 ky**-1 orbital frequency band and there are indications for a strong 100-ky**-1 frequency component. There is also much variance at 15 ky1, the sum frequency of the 23-ky**-l and the absent 41-ky**-1 cycles. This cyclicity is a real feature in the records. […]