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Professional Paper 1386–A

Chapter A–2 (Figure 32)

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Figure 32.—Variations in the oxygen-isotope ratio of a marine sediment core showing the 100,000-year cycles of glacials and interglacials. The curves record the slow onset of glaciation and six intervals of rapid deglaciation at the end (“termination”) of each cycle. Modified from Imbrie and Imbrie (1979, p. 157, fig. 38).

Figure 32. Variations in the oxygen-isotope ratio of a marine sediment core showing the 100,000-year cycles of glacials and interglacials. The curves record the slow onset of glaciation and six intervals of rapid deglaciation at the end (“termination”) of each cycle. Modified from Imbrie and Imbrie (1979, p. 157, fig. 38).



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