Figure F4. A. Comparison of preliminary (unpublished) incremental heating 40Ar/39Ar ages of A.A.P. Koppers (AMAT02RR) and J. O'Connor (SO167), with age data from Koppers et al. (2004) and total fusion ages after Watts et al. (1988). B. Example incremental heating diagrams on samples from the AMAT02RR site survey cruise.
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