Figure 6-10 for Sean Mewhinney's Minds in Ablation

Figure 6-10

Oxygen-isotope compositions of the GRIP and GISP2 deep ice cores. The shallowest overturned folds, and the shallowest two regions of steep dips, are indicated for each core. The depths of major features in the cores differ slightly owing to well-understood differences in snow accumulation and layer thinning; significant mismatch not explainable in this way occurs deeper than about 2,700-2,750 m.

Source: R. B. Alley et al., "Comparison of Deep Ice Cores," Nature Vol. 373 (Feb. 2, 1995), p. 394.

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Last modified by pib on October 28, 2003.