Figure F8. Details of isochrons inferred from magnetic anomalies near Site 1256. Gray shading shows normal magnetic polarity, based on digitized reversal boundaries (small circles; after Wilson, 1996). Bold line shows location of Guatemala basin multichannel seismic tracklines from the site survey conducted in March-April 1999. Dashed boxes show the locations shown in Figures F10, F11, and F12. Anomaly ages: 5A = ~12 Ma, 5B = ~15 Ma, and 5D = ~17 Ma.

Figure F8. Details of isochrons inferred from magnetic anomalies near Site 1256. Gray shading shows normal magnetic polarity, based on digitized reversal boundaries (small circles; after Wilson, 1996). Bold line shows location of Guatemala basin multichannel seismic tracklines from the site survey conducted in March-April 1999. Dashed boxes show the locations shown in Figures F10, F11, and F12. Anomaly ages: 5A = ~12 Ma, 5B = ~15 Ma, and 5D = ~17 Ma.